Commit Graph
12 Commits
Author SHA1 Message Date
Vikhyath Mondreti 81ebb37563 fix(delivery): stable provider idempotency tokens, and correctness fixes around them (#6943)
* fix(delivery): stable provider idempotency tokens, and correctness fixes around them

Six independent fixes found while investigating a Slack transport failure. None
of them are that failure; all of them are live.

**Money writes could be delivered twice.** Square (8 tools), Brex (5) and Outlook
Calendar minted their provider idempotency token with `generateId()` at
request-build time. That is stable inside the transport retry loop —
`prepareToolRequest` runs once above it — but a BLOCK-level retry re-enters the
handler and mints a fresh one, defeating the provider's dedupe. A builder ticking
"retry" on a Square block turned a committed write into a second card charge, and
a Brex one into a second money transfer. Tokens now come from
`deriveDeliveryKey`, a pure function of execution + block + tool + invocation, so
every retry layer derives the same value. Stripe joins them: all ~50 tools
previously sent no `Idempotency-Key` at all.

The comment on `brex/create_transfer.ts` claimed a fresh key per transfer
*prevents* duplicate money movement. That is inverted — fresh per *attempt* is
what permits it — and is corrected here.

**`invocationId` is required, not optional.** Deriving from `executionId` alone
would be worse than the bug: five loop iterations paying five invoices would
share one token, the provider would honour the first and silently drop four real
payments, and it would look like five successes.

Also:

- `INTERNAL_API_BASE_URL` is now ignored on Trigger.dev workers. It names a route
  that resolves only inside the app container, and several modules run in both
  runtimes — `guardrails/mask-client.ts` says so in its own TSDoc — so setting it
  produced `PII redaction failed: Unable to connect` on every worker-side
  redaction. Mirrored into `packages/testing`'s urls mock, which reimplements the
  function and would otherwise have diverged.
- `engines.bun` raised to >=1.3.14. Measured on 1.2.15, which the old floor
  permitted: a fully-delivered POST is silently replayed and the caller sees 200.
- CloudWatch `put-metric-data` pinned to `maxAttempts: 1`. The AWS SDK default of
  3 already replayed it, and `PutMetricData` aggregates rather than overwrites, so
  a duplicate silently corrupts the customer's metric series and alarm thresholds.
- `webhookIdempotency` given a bounded in-progress lease. An untimed run held a
  SEVEN DAY lease while concurrent duplicates polled it once a second.

Verified: `tsc --noEmit` clean, 30,100 tests pass.

* fix(ci): restore staging files the branch split had reverted, and format

Three problems, all from assembling this branch by checking paths out of a WIP
branch built on an older `staging`. Anything `staging` changed since that base
came back as a revert.

- Root `package.json` had lost the `opentype.js` / `@types/opentype.js`
  dependencies `staging` added, which desynced `bun.lock` and failed `bun audit`.
  It also carried a `check:outbound-delivery` script belonging to other work.
  Every `package.json` is now taken from `staging` with only the `engines.bun`
  line re-applied.
- `executor/utils/block-data.test.ts` — a 77-line file `staging` added — was
  deleted outright. Restored.
- `executor/handlers/generic/generic-handler.test.ts` had lost a test `staging`
  added. Restored, with only the one `blockId` assertion re-applied.

Also formats `keyed-invocation-identity.test.ts` and sorts imports in
`internal-api-base-url.test.ts`, which is what `lint:check` failed on.

* fix(providers): thread the model's tool-call id into keyed tool execution

`prepareToolExecution` accepted an `invocationId` but no provider supplied one,
so a keyed tool invoked through an agent always hit the incomplete-context
fallback and minted a fresh token — leaving Stripe, Square, Brex and Outlook
Calendar writes able to double-deliver under the hosted-key retry layer even
though the block path was fixed.

The id is now a positional parameter rather than another optional field on
`request`, so a provider that cannot supply one fails to compile instead of
silently falling through. 22 of the 27 call sites already had the OpenAI-shaped
`toolCall` in scope; `tsc` identified the other five, of which Anthropic
(`toolUse.id`) and Bedrock (`toolUse.toolUseId`) name it differently.

Gemini is left deliberately unthreaded and documented: its function-call parts
carry no model-supplied identifier — the streaming loop has to synthesize a local
one — and a positional index would not survive the model re-emitting the call. A
token that only looks stable is worse than the loud fallback, which names the
missing fields.

* fix(executor): keep execution order monotonic across a resume

`executionOrder` is not carried in the pause snapshot, so a resumed run
restarted the counter at 0 and a loop or parallel body executing on both sides
of a pause could reuse a pre-pause value.

That was cosmetic while the number only ordered logs. It stops being cosmetic
once identity is derived from it: a `keyed` tool takes its provider idempotency
token from this value, so two distinct writes would present the same token and
the provider would silently drop the second. Suppressing a real payment is worse
than the duplicate the token exists to prevent, because it looks like success.

The counter is now seeded from the highest `executionOrder` among the restored
block logs rather than from a new snapshot field, so snapshots written before
this change are repaired on resume instead of needing a migration.

* fix(providers): thread the tool-call id through the streaming loops too

The previous commit only reached call sites written as a single-line
three-argument call. The streaming loops are formatted across lines, so
openai-compat (Groq, DeepSeek and everything else routing through it), Anthropic
and Bedrock still omitted the id and kept falling back to a fresh token.

Both Gemini paths now pass `part.functionCall?.id` — the RAW model id, not the
`ensureToolCallId` value used for stream events. That helper allocates an
execution-local id when Gemini supplies none, and it is freshly allocated per
attempt: passing it would complete the keyed context, silencing the "could not
derive" warning, while leaving the token just as unstable. Gemini frequently
omits the id, in which case this is `undefined` and the loud fallback stands.

All 27 call sites are now covered.

* fix(providers): make the tool-call id argument required, not optional

The TSDoc claimed a provider that cannot supply an id would fail to compile, but
the parameter was declared `toolCallId?: string` — so a new call site could omit
it entirely, typecheck, and silently take the unstable-token path the positional
parameter exists to close. The comment promised a guarantee the type did not
enforce.

It is now `string | undefined`: required in position, nullable in value. A
provider with no model-supplied id must pass `undefined` explicitly and take the
loud fallback, rather than being able to forget the argument.

All 27 existing call sites already pass it, so this is enforcement only. Verified
by deleting the argument at one site: `tsc` rejects it.
2026-08-21 13:35:20 -07:00
Vikhyath MondretiandClaude Opus 5 e8d278b6e4 fix(files): stop the collaborative editor rewriting and reflowing a document on open (#6652)
* fix(files): stop the collaborative editor rewriting and reflowing a document on open

Opening a file rewrote it. Binding an editor to a seeded document emits a Yjs
update of its own — ProseMirror appends an empty paragraph to any doc that does
not end in one — which the relay saw as a real edit and persisted. Every open
therefore uploaded the file under a FRESH storage key and deleted the old one,
404ing the page's own in-flight content read, bumping "Last Updated" just from
viewing, and churning a blob per open. Worse, a trailing blank line cannot
serialize, so the file never recorded that paragraph and nothing reconciled the
two: each client that seeded without seeing another's contribution stacked one
more. A real document reached 18 against the placeholder's 1 — measured as the
pane growing several hundred pixels the instant the live editor took over.

- Seed and merge through the editor's own normal form (`editorNormalForm`), so
  binding is a no-op and `canonicalizeYDoc` collapses an accumulated run back to
  one. Placed at the collab boundary, not in `parseMarkdownToDoc`: only the CRDT
  has to agree with the editor — every other consumer of the parse renders
  through a real editor that normalizes itself.
- Skip a persist whose projection already matches the durable bytes. Byte length
  is the free reject, so the compare read only happens when a no-op write is
  actually on the table.
- Revoke collaborative readiness on a fatal join. The sticky `syncedOnce` latch
  outlived the document: after a readiness timeout the provider drops `synced`
  so the gate closes, but the latch re-opened it on the offline fallback's seed
  flag — handing back an EDITABLE editor on a document the provider had
  abandoned, with client autosave gated off because collaboration is nominally
  on. Keystrokes went nowhere and vanished on reload, with no error shown.
- Recover from a superseded storage key instead of stranding the reader: a 404
  re-resolves the file record, so the read re-keys onto the current object. And
  do not focus-refetch durable bytes while the relay owns durability.
- Prefetch the workspace file list in the layout, where the sidebar already
  reads it. `HydrationBoundary` defers an already-seen query to an effect that
  SSR never runs, so a page-level prefetch of that key could not reach the
  server render — the file route rendered a spinner and disagreed with the
  client about the header's markup (a hydration mismatch).
- Load the document font with `display: block`. A swap repaints prose in
  metric-adjusted Arial first, so paragraphs re-wrap when the real face lands.

Also: a detail-route `loading.tsx` (the segment was inheriting the list chrome),
`normalize.ts` renamed to `field.ts` now that it holds only the field constant,
and the duplicate `COLLAB_DOC_FIELD` in the streaming path folded into it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(files): serve a whole document on join, and stop persistence deadlocking

Opening a file right after an edit replayed it — the block you had just moved
moved again, in front of you. A room rebuilds itself from the file's Redis
stream one entry at a time, into the same Y.Doc that fans every update out to
its room, and the join attached the socket before that finished and before the
server seed. So a client was never sent the document; it was sent the
document's history, and it watched that replay. The new join-readiness test
reproduces it exactly — ['AAA', 'BBBAAA'] where one state was due — and fails
without the fix.

Underneath it, persistence had deadlocked. The If-Match token is a REMEMBERED
timestamp: held in the room, which dies with it, and in a cluster key written
fire-and-forget. A relay that exits in the moments after a successful write
comes back holding a version older than the file's, every persist then fails
the CAS, and because a conflict neither writes nor advances the token, that
document can never be persisted again. Measured on a live file: token
1786594348911 against a content version of 1786594418409, with 103 unpersisted
entries still in the stream. The durable markdown froze there — and the
editor's placeholder is built from it, so every reload painted the pre-edit
document and the live one corrected it on screen.

- Assemble a room before attaching a client to it. The join awaits the stream
  catch-up and the seed, so the first sync IS the finished document, in one
  message. The seed is memoized on the room, so concurrent joins wait for the
  same one instead of the second being served an empty doc; a task that loses
  the seed lock PULLS the winner's seed from the stream rather than waiting for
  the tailer to push it, which is what left a freshly uploaded file read-only
  until its readiness deadline lapsed.
- Drop the client-side quiet-frame gate that was standing in for this. It was
  unsound in both directions: it delayed a document that was already correct,
  and it opened mid-flight anyway whenever updates arrived more than a frame
  apart, which is what a cross-region Redis and a long room history produce.
- Await the cluster version write after a successful persist. It is the only
  record that survives a teardown, and one round trip after a blob write is not
  a cost worth a wedged document.
- On a version conflict, ask the CONTENT, not the clock. If the file still
  holds the bytes this document last projected — the tag written with every
  persist — then nothing out-of-band exists to protect, so re-sync the token and
  write. Any other bytes and the conflict stands exactly as before.
- Actually run the stale-storage-key recovery. It was requested from inside the
  failing read's own queryFn, where react-query drops it, so nothing re-resolved
  the record and the reader sat on a dead key showing "Failed to load file
  content" until something unrelated refetched. It now runs off that cycle and
  cancels a read already in flight, which could only hand back the dead key.
  While the record is re-resolving the surface reports loading, not failure.
- One document per file, for its whole life. A document rebuilt from markdown is
  a DIFFERENT document to Yjs — its items carry new client ids — so a client
  still holding the old one merges the file into itself, twice, on both sides.
  The seed now stores what it builds (until that row existed, a file opened but
  never edited was rebuilt on every open) and resumes it with a CRDT diff when
  the markdown moved on out-of-band. A document also carries an identity the
  join ack names, so a tab that outlived its room is refused rather than merged.
- Let a browser keep an embedded image. The inline route sent no-cache with no
  validator, so every open re-downloaded the whole image — measured at ~1 MB per
  open of a real document, with the image area blank until it landed. A `key`
  names one storage object and a content write never rewrites one, so those
  bytes are immutable; a `fileId` names the file, whose bytes move, so that form
  still revalidates.

* fix(files): name every collaborative document, and only cache what the URL names

Two findings from review, both real.

A document stored before identities existed is returned by the seed's fast path
on every open, and that path never named one — so those files could never
acquire an identity, and the join-ack guard could never fire for them. That is
the population most likely to have a tab that outlived its room, which is the
case the guard exists for. The fast path now names an unnamed document and
stores it, once: minting without storing would name it differently on every
open and the guard would start refusing clients that hold the very same
document.

The inline route marked a response immutable whenever the caller passed a key,
but a key is resolved to a FILE and the file's current key is what gets
streamed. A content write landing between those two reads would serve the new
bytes under a URL naming the old object — and cached for a year, that is wrong
forever. The flag is now what it always meant: the URL names the exact object
that was streamed.

---------

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-12 22:59:19 -07:00
245ad1bd46 feat(workflows): new workflow block card, progress indicator, colors, dsl for natural language preview, retry configs (#6458)
* improvement(workflow): refine canvas interactions and rendering

* fix(workflow): keep outputs on the right, focus newly created blocks

Connection anchors: an output now always leaves a card from the right.
The cursor swell lets a drag start on any edge, but the left side is the
input, so anchoring an outgoing edge there drew a line out of the input
port and read as a second input. `normalizeCursorSourceHandleId` resolves
every drag to the right anchor, `normalizePositionedSourceHandleId`
collapses `source-left` alongside the legacy vertical anchors (so data
from the API, an older client, or a stale save self-heals on load), and
only the right-side source anchor is mounted.

Drops in `onConnectEnd` are always source -> target. The branch that
reversed the edge for a drag starting on an input could never run: the
`target` handle is `isConnectableStart={false}` and the positioned side
anchors are `isConnectable={false}`, so React Flow never reports an input
as a drag origin. Removed it and its now-unused imports.

A newly created block is centered once its node mounts and is measured,
so a card added from a drag-release, the block menu, or the toolbar is
never left off-screen or under the editor panel.

The editor panel's block icon uses the same type accent as the card's
badge instead of the block's legacy `bgColor`, which had left the panel
on the old per-integration brand colours.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(workflow): floor header-only card height, adopt brand tag palette

The Start card intermittently collapsed after load, squashing the
action-menu tab so its icon row sat over the card.

`.workflow-drag-handle` is the host the border renderer measures, and both
it and the header row took their height from `blockHeight && blockHeight >
0`. `blockHeight` comes from the deterministic-dimensions pass and is
already floored at MIN_PAINTED_HEIGHT (48), but it is absent on the first
frames — and with no floor the host collapsed to its natural content
height (25.5px for a header-only trigger, exactly the title's line box).
The border builds its perimeter from `host.offsetHeight`, so that window
painted a sub-floor card: too little straight edge remained on the
vertical runs for the action-menu tab, which collapsed into the corner
arcs. Whether you saw it depended purely on whether the dimension publish
had landed, which is why it reproduced on one workflow and not another.

Floor all three: the host, the header row (so `items-center` centres the
title and type tag rather than pinning them to the top), and the border's
own `offsetHeight` read.

Also raise ACTION_MENU_CONTENT_READY_THRESHOLD to 0.9. At 0.8 the 24px
icon row was revealed while the swell had only reached 22.4px of its 28px
— shorter than the row it contains. Secondary to the above, but a real
overflow window on its own. The test now pins the ratio rather than the
constant.

Tag palette moves to fixed brand values (hex, not derived oklch) with two
inks — #F8F8F8 on dark fills, #1A1A1A on light. Tones are renamed to match
what they render. `green` (2.55:1) and `orange` (3.15:1) sit under WCAG AA
against their paired ink; both are deliberate brand decisions and are
documented in the component.

Deploy and Run take two new Button variants rather than className
overrides, so `tertiary` stays green everywhere else.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* improvement(workflow): polish workflow canvas interactions

* fix(workflow): restyle loop drop target outline

* fix(workflow): shorten human block catalog label

* fix(workflow): canonicalize realtime edge handles

* code cleanup

* sizing fixes

* improvement(blocks): sentencify every block

* change tebse

* improvement(workflow): land notes UI and execution progress, consolidate duplicates

Ports the notes canvas editing and execution progress-indicator work, then
removes the parallel paths it arrived with so each concern has one owner.

Fixes found while consolidating:

- Note height was measured while the card was expanded to NOTE_EXPANDED_WIDTH,
  where text re-wraps shorter, and published as the node's compact height. The
  collapse then animated to a height never measured at the compact width.
- The edge pulse glow filter used the default objectBoundingBox units, so a
  straight horizontal edge — what an auto-laid-out chain produces — resolved the
  filter region to zero height and stopped the glow rendering entirely.
- A subflow's inner Start pill still read isNodeSelected while its border read
  usesSelectedVisuals, so the two disagreed during execution.
- The Run/Stop button's disabled prop gated only Run while its handler cancelled
  unconditionally, offering a Stop the cancel route answers with 403.

Consolidated:

- One note editor. The view's built-in textarea was unreachable in production
  (the app always injects the markdown editor) and was kept alive only by tests
  asserting against it; renderContentEditor is now required.
- onBlur/onCancel collapse to onEndEditing — content persists per keystroke, so
  there was never a draft for a cancel path to discard.
- DEFAULT_NOTE_COLOR, the note height bounds, the note content reader and the
  card width each had two or three definitions; each now has one.
- Removed with zero consumers: graphite/graphiteSubtle button variants,
  data-subflow-selected, inputPlaceholderClassName, an effect that could never
  fire, and getNoteColorOption's unreachable fallbacks.

Restores the role='status' announcement the progress rewrite dropped, and hardens
isNoteColor against inherited Object keys.

Co-Authored-By: Claude <noreply@anthropic.com>

* improvement(workflow): reuse the platform markdown editor in notes

Notes carried their own TipTap wiring — a second markdown editor that
reimplemented, more thinly, what `RichMarkdownField` already does for the skill
modal, skill fields and the deploy version description. It is now a ~20 line
skin: the Note supplies its type scale and per-colour selection tint, and the
field supplies the extension set, frontmatter held out-of-band, the round-trip
safety gate and its raw-source fallback, and markdown paste.

`RichMarkdownField` gains two additive props, both defaulting to today's
behaviour so the file editor is untouched: `surface` ('field' | 'bare') and
`proseClassName`. All three existing consumers pass an explicit `minHeight` and
no `surface`, so they take the original path unchanged.

Exiting the note editor moved to the card, because the editor's `/` and `@`
menus consume Escape to close themselves and ProseMirror checks `editorProps`
before plugin handlers — intercepting it inside the editor would have broken
both menus. The card now honours Escape only when nothing already consumed it,
which also let `onEndEditing` leave the injection contract.

The note editor is lazy now, matching every other consumer: it was pulling
TipTap and the full extension set into the canvas's initial chunk.

Also:

- One `areRunFromBlockDependenciesSatisfied`. The ActionBar, the canvas context
  menu and the run-from-block handler each carried a byte-identical copy, and
  the handler expressed the snapshot requirement differently, so the affordance
  and the action could disagree. Each copy also re-scanned `edges` once per
  incoming edge, on every ActionBar on the canvas.
- Reduced motion is one `usePrefersReducedMotion` in @sim/emcn rather than a
  sixth ad-hoc `matchMedia`. The edge pulse now stops rendering instead of
  hiding: `motion-reduce:hidden` is `display: none`, which left four SMIL
  timelines running per edge.
- The pulse glow bleed covers the canvas minimum zoom. The strokes are
  `non-scaling-stroke`, so the 6px tail spans 3/zoom user units — 30 at 0.1.

Co-Authored-By: Claude <noreply@anthropic.com>

* improvement(workflow): port canvas styling from workflow-updates

Ports the 14 styling commits your colleague added since the last sync, leaving
the ~68 staging PRs on that branch alone — those are platform/core work, not
this. Cherry-picked individually rather than merged so each conflict was small
enough to reason about.

What came in:

- Core block colors unify behind a two-level map: block type -> semantic role
  -> accent, replacing the flat per-type table. Adds `purple` and `content`
  tones to ChipTag, and a shared `WorkflowTypeIcon` that replaces the
  hand-rolled ChipTag + accent lookup at each discovery surface.
- Native triggers take semantic colors; the deployments block moves to the
  shared Rocket icon and drops its now-unused `iconColor`.
- Running-state polish: loader artwork and position, stop hover in dark mode,
  the loader blended into the execution swell, and tooltips suppressed for
  actions that are hidden mid-run.
- The toolbar drag preview clones the rendered icon container instead of
  rebuilding a bgColor tile, so it matches what the canvas paints.
- The sidebar shows route-derived workspace identity instead of a skeleton
  while the full record loads.

Conflict resolutions worth knowing:

- The running-loader artwork went through the shared `Loader` and back to the
  custom SVG on their branch; the second commit is the intent, so that is what
  landed — keeping our `role='status'` announcement layered on top.
- Two commits carried the lucide-react -> in-house icon migration along with
  them. That migration is a staging change we have not taken, so our imports
  stayed on lucide: adopting it in two files would leave the icon set split
  across the app.
- `getMappedWorkflowTypeAccent` referenced a constant their refactor removed.
  It had no consumers left once the search modal moved to `WorkflowTypeIcon`,
  and their branch deletes it too, so it is gone here.

Co-Authored-By: Claude <noreply@anthropic.com>

* feat(workflow): make the subflow Start swell a real connection source

Dragging an edge into whitespace opens the add-block picker, but starting that
drag from a loop/parallel Start pill did nothing: the pill's border swell was
visual-only. Regular blocks and the container's own exit mint a draggable
cursor handle from their swell; the pill rendered only its invisible 14px
static strip, so grabbing the glowing affordance started no connection at all.

Everything downstream already worked and was nearly unreachable:
- the drop hit-test skips subflow containers, so a release inside the loop
  opens the picker there (z 2000, above containers)
- handleToolbarDrop parents the new block into the container at the drop point
- it already carries the exact boundary rule for this source: a container
  start handle only wires to a child of that container

The pill now runs the same cursor-handle machinery as the container view, with
one deliberate difference: its temporary handle carries the branch-cursor form
of the start id. The plain cursor id normalizes by block type — for a
container that is `loop-end-source`/`parallel-end-source`, the exit — so a
swell drag from Start would have persisted as an edge leaving the container.
The branch form passes `loop-start-source`/`parallel-start-source` through
normalization verbatim on both the picker and direct-connect paths; a test
pins that contract.

Co-Authored-By: Claude <noreply@anthropic.com>

* fix(notes): stop the field's prose classes recoloring bare-surface editing

Opening a note for editing shifted the text and turned it black: the
ProseMirror root unconditionally carried `rich-markdown-prose
rich-markdown-field-prose`, which pin the field's own ink and type ramp —
`--text-primary` at 15px/25px, then 14px/22px — overriding the card's
`text-current` at 14px/20px the moment the editor mounted.

`surface='bare'` means the host owns typography (the Note card mirrors its
rendered view via `proseClassName`), so on that surface the root now carries no
shared prose classes. The field surface is untouched. Edit mode inherits the
note colour's ink — including the caret — and sits on the same metrics as the
read view.

Co-Authored-By: Claude <noreply@anthropic.com>

* fix(workflow): give the in-flight connection line contrast inside containers

The drag line was drawn but camouflaged: its default stroke was the
resting-edge grey (#e0e0e0), which disappears against a loop body's opaque
`--surface-3` fill (~1.1:1) — so dragging an edge inside any container, nested
included, showed nothing. The z-order was never the problem; the connection
line layer already sits above every node.

The default token is now `--text-muted`, one value with contrast on every
canvas surface, still lighter than the `selected` variant so the variant
hierarchy holds. No per-surface special-casing.

Resting edges inside containers share the same camouflage (`--workflow-edge` on
`--surface-3`) — left alone deliberately: recoloring placed edges is a design
decision, not a bug fix.

Co-Authored-By: Claude <noreply@anthropic.com>

* fix(notes): match edit mode to the read view, and land the caret where clicked

Three defects, all from the read and edit views being built independently.

1. Blocks jumped up ~12px on entering edit mode. Streamdown wraps its output in
   a container carrying `space-y-4` plus first/last margin resets, which outrank
   the per-element margins in NOTE_COMPONENTS — so that wrapper, not those
   margins, is what the read view actually paints. The editor had no equivalent.
   The rhythm is now named (NOTE_MARKDOWN_FLOW), passed to Streamdown
   explicitly so a dependency upgrade cannot move the read view out from under
   the editor, and mirrored on the ProseMirror root. Tailwind's JIT only sees
   literal strings so the mirror cannot be composed from the constant; a test
   pins the two together instead, and fails if either side drifts.

2. The caret was barely visible: it inherited the note's 75%-opacity ink. The
   palette owns per-colour chrome, so it now names the caret alongside the
   selection tint.

3. The caret always landed at the document end. The read view sits under a
   full-bleed overlay that must swallow the click to enter editing, so the
   point never reached the editor and `autofocus: 'end'` was all that was left.
   The view now forwards that point and the field resolves it through
   `posAtCoords` on create — after the DOM is laid out, which `autofocus`
   cannot wait for. Keyboard activation carries no point and still lands at the
   end.

`autoFocusAt` is additive on the shared field and defaults to null, so the file
editor and the other three consumers are unchanged.

Co-Authored-By: Claude <noreply@anthropic.com>

* fix(workflow): stop edges rendering behind top-level subflows

Containers are z-indexed by nesting depth, so a top-level subflow is 0. Edges
derived their z from their parent container — `+1`, or 0 with no parent — so a
root-level edge landed on exactly the same z as a root-level subflow. Equal
z-index falls back to DOM order, and React Flow paints the nodes layer after
the edges layer, so the container's opaque body won: any edge crossing a
top-level loop or parallel was drawn behind it, in-flight or persisted.

Edges now sit in their own band above the whole container scale and below
cards, keeping both the deeper-container-wins ordering and the rule that a line
always passes behind card chrome. This is why the edge became visible only once
a block was dropped: the new block is selected, and an edge inside the
container was already `containerZ + 1`, clear of the tie.

The in-flight connection line is declared in the same scale rather than
inheriting React Flow's stylesheet default of 1001, which is both below a
selected container child and outside the scale this file owns. Its stroke moves
to `--text-secondary`, the token the canvas already uses for an active edge —
the previous `--workflow-edge` grey is ~1.1:1 against a subflow body.

Co-Authored-By: Claude <noreply@anthropic.com>

* feat(notes): paste and drop images through the workspace-file pipeline

Traced the file editor's image path end to end and reused it verbatim rather
than minting a note-specific source: insertImages -> useUploadWorkspaceFile ->
POST /api/workspaces/{id}/files/presigned -> direct-to-S3 PUT -> workspace_files
row -> the editor persists the workspace-scoped
/api/workspaces/{id}/files/inline URL, which the serve route authorizes by
workspace membership and the embedded-image-ref machinery already recognizes
for share rewriting and referenced-by-doc tracking.

The shared field gains an optional `uploadImage(file) -> {url, alt} | null`
capability. With it, image paste/drop uploads sequentially and inserts each at
the evolving position, mirroring the file editor's flow, with a bail if the
editor unmounts mid-upload; without it, the existing swallow-guard on file
drops is unchanged, so the skill modal, skill fields and version-description
consumers behave exactly as before. The upload mutation owns its own toasts.

The note host wires the capability with folderId null, so note images land in
the workspace Files root — visible, manageable and deletable there like any
other upload. The note read view renders images through its Streamdown
components map with the card's own sizing.

Co-Authored-By: Claude <noreply@anthropic.com>

* improvement for notes, subflows

* fix(uploads): surface the server's message when a multipart upload is refused

A file over the 50MB direct-PUT threshold goes through multipart initiate, which
is where the storage quota is enforced — but the client threw away the response
body and reported `Failed to initiate multipart upload: Payload Too Large`. That
is the string the upload mutation puts in its toast, and it names neither which
limit was hit nor by how much, so the one place that answer surfaces didn't have
it.

It now prefers `errorBody.error` exactly as `getPresignedUploadInfo` already does
on the single-PUT path, and passes the body through as the error's details.
Control flow is unchanged: still throws, still `MULTIPART_ERROR`, and the
cloud-storage-absent branch above still claims its 400 first.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(notes): restore GFM in the note read view

Streamdown's `remarkPlugins` prop REPLACES its default plugin list rather than
extending it, and remark-gfm is one of those defaults. The note passed
`[remarkBreaks]` — so the read view silently lost every GFM construct: task
lists, tables, strikethrough and autolinks.

The editor writes all of them (it has TaskList, TableKit and Strike), so a note
round-tripped through editing came back as raw source the moment editing closed:
`- [x] HELLO` rendered as a disc bullet followed by the literal text `[x] HELLO`.
`NOTE_COMPONENTS` has carried table/thead/tbody/tr/th/td entries this whole time
that could never fire.

Restoring the plugin is only half of it: remark-gfm marks a checklist
`contains-task-list` and emits a native checkbox, which under the note's generic
`ul` styling renders a checkbox sitting behind a disc bullet — the same defect
the editor had before the chrome/typography split. The read view now drops the
marker and indent for a task list, lays the row out as a flex line, and styles
the checkbox to match `.rich-markdown-nodes input[type="checkbox"]` declaration
for declaration, tick clip-path included, so the two views agree either side of a
click.

`remark-gfm` is now a declared dependency of the renderer package rather than one
borrowed transitively from streamdown.

Five tests cover the GFM surface — checked/unchecked boxes, no literal `[x]`, the
marker only dropped for checklists, tables, strikethrough — and four go red with
the plugin removed.

Checked the other three Streamdown call sites (Chat, the chat interface renderer,
the changelog): none override `remarkPlugins`, so none were affected.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* refactor(canvas): drop dead markers and share the tile-brightness maths

Review pass over the branch against staging.

Dead code removed:
- `tileIconColorClass` in the renderer package — never called; only its
  `isLightTileColor` sibling is.
- `data-connection-selector-search-frost`, `data-workflow-cursor-edge` and
  `data-workflow-cursor-source-side` — written on three elements, read by no
  stylesheet, selector or test.
- `CHIP_TARGET_SELECTOR_TYPES`, `MAX_CHIPS` and `chipPriority` were exported from
  `canvas-rows.ts` but only used inside it.

Consolidated the one real divergence: the renderer package carried a hand-copied
mirror of the app's perceived-brightness maths, because it may not import app
code. The copy had already drifted — it dropped the `white`/`black` keyword
handling, so a block shipping `bgColor: 'white'` would render a white
`currentColor` icon on a white tile on the canvas while every other surface drew
it black. No block ships one today, which is exactly why nothing caught it. The
function now lives in `@sim/utils/color` and both sides import it; only the
0.75 threshold stays local to each.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* refactor(canvas): share the z-scale, fix the preview's edge layering, and re-home strays

The preview canvas carried its own z numbers and had the collision the editor
canvas was fixed for: containers at nesting depth, top-level cards at an implicit
0, and edges at 0/5/10 by execution status — so a default edge tied with a
top-level subflow and painted behind it, while a success edge painted over
unselected cards.

The scale now lives once, in `@sim/workflow-renderer/canvas-layers`, and both
canvases read it. The preview keeps its status ordering, expressed inside the
shared edge band rather than as a second set of magic numbers.

Placement and duplication:

- `perceivedBrightness` moved to `@sim/utils/color`, with its unit test, and its
  consumers import it directly. It had been re-exported through
  `lib/colors/brightness.ts`, and the renderer package kept a hand-copy.
- `filterAcyclicEdges`/`wouldCreateCycle` were pass-through wrappers in the
  workflow store's utils over the real implementations in `@sim/workflow-types`.
  Deleted; the three consumers import the source.
- `lib/ui/glass-surface.ts` was a one-constant, one-consumer app-wide module, and
  its consumer then aliased it a second time. Collapsed into the navbar shell.
- `nested-subflow-node` was set on nested container nodes in both canvases with no
  stylesheet, selector or test behind it.

`packages/workflow-renderer` now has its own vitest config, so the four mount
tests for its components live with the components instead of in
`apps/sim/lib/workflows/**`. That immediately earned its keep: `apps/sim`
excludes test files from type-check, and once these were checked, tsc found three
`SubflowNodeView` renders being handed a `renderContentEditor` prop it does not
accept — a copy-paste from the note cases that had been silently ignored.

Verified: type-check 23/23, 21,143 app tests + 49 renderer + 147 utils, biome
clean, all 23 audits pass (`check:bare-icons` imported the moved helper and was
repointed).

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix field noun bug + notes

* fix(notes): let a note service the canvas actions the panel editor cannot

The panel editor clears any note put in front of it and renders nothing, but the
block menu still routed Rename and Open Editor through it.

Rename latched the editor's rename state onto the note — `handleStartRename`
reads the store directly, so it saw the id the menu had just set — and nothing
reset it when the clear ran. `handleSaveRename` writes to `renamingBlockIdRef`,
so the header went on showing a rename field over whatever was selected next and
saved that name to the note. Open Editor was a plain no-op that opened an empty
pane.

Rename now goes to the card, which expands and opens its own title — the same
menu-to-card routing Add Image already used, so both events now live in one
`lib/workflows/notes/canvas-requests.ts` and `add-image.ts` keeps only its
markdown concern. Open Editor is hidden for notes.

The panel editor also drops any rename whose block stops being the selected one.
That is belt-and-braces for notes now, but it closes the same hole for ordinary
blocks, where only the input's blur ended a rename and blur only fires if it held
focus. A rename interrupted that way is now discarded rather than left pending.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* feat(canvas): author sentences for Snowflake and Mintlify, repoint Instagram's

Staging's two new integrations shipped without a `canvasPresentation`, so their
39 operations painted the field rows the rest of the canvas has stopped using.

The Instagram break is the more interesting one: staging renamed the insight
metrics subblock `metrics` -> `insightMetrics` while this branch was adding
sentences that named `metrics`. Both hunks merged cleanly — the union check
reports the file as an exact union — and the result was two clauses pointing at
a field that no longer exists, which resolves to nothing with no error and no
log. Only `check:canvas-sentences` sees it.

Two Snowflake sentences say something the block does not do, so they anchor
elsewhere: `taskName` filters `list_task_runs`/`get_task_run` rather than keying
them, and `table` filters `introspect_schema` — blank means "every one", not "not
filled in yet", and a core chip would have claimed otherwise.

Coverage is back to 4727/4727 operations across 321/321 blocks.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(canvas): keep the block-type tag naming its type after a rename

The header tag dropped its label whenever the block's title already said the
same word, so the same block read two ways depending on nothing the user did
deliberately: a freshly dropped Wait showed a bare icon, and its second copy —
auto-named "Wait 2" — showed "Wait". The tag looked like a badge that appeared
on rename rather than a fixed part of the header.

It now always names the type, which is what loop and parallel containers already
do with their own tag, so every card on the canvas reads the same way.

`blockName` was only ever read for that comparison, so the prop is gone rather
than left behind for a future reader to wonder about.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(deploy): compare edge handles by port, not by spelling

Two places answer "does this need redeploying?" and they load their sides
differently. The client diffs the live store against `/api/workflows/[id]/deployed`;
the server diffs the normalized tables against the version's raw jsonb. Only
some of those paths run handles through `loadWorkflowFromNormalizedTables`, so a
snapshot holding a side-anchored id (`source-right`) met a canonical one
(`source`) on the other side and the set comparison read it as every edge being
removed and re-added.

Each answer therefore differed, and they arrive on separate query timelines: the
button reads the client's, the modal badge reads the server's, so the state
flipped between Live and "Update deployment" with whichever query landed last
until both settled.

`normalizeEdge` now canonicalizes both handles, so the comparison cannot tell
two spellings of one port apart no matter how its inputs were loaded. The
existing normalization in `materializeDeploymentState` stays — that path also
feeds React Flow, which needs the handle it mounts to match.

The preview's error port had the mirror problem: it rendered for every
non-trigger block regardless of `errorEnabled`, so a card with no error row grew
a red knob anyway. It now gates the way the editor canvas does, keeping the port
mounted when an error edge already leaves it so React Flow cannot drop that edge.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(deploy): stop counting the error flag twice in change detection

`errorEnabled` has two homes. It persists inside the block's `data` jsonb — the
realtime server `jsonb_set`s it there, and load mirrors it back onto the block as
a field — so it reached the diff twice, and only some paths populate the copy.

`setBlockErrorEnabled` writes the mirror alone, so right after toggling the port
the live block said `errorEnabled: true` with `data.errorEnabled: false`, while
the snapshot the deploy had just taken from the tables said true in both. The
diff read the stale `data` and reported the workflow as changed the instant it
finished deploying — then a state refetch rehydrated the block and it agreed
again. That is the flip between Live and "Update deployment": the button and the
modal read two different queries, so each landing swapped the answer. A block
created in-session had the same shape from the other side, its `data` carrying no
key at all against a persisted `false`.

Excluded from `normalizeBlockData` alongside the other fields that are duplicated
out of the block's own state. The block field is still compared on its own, with
`!!`, so absent and `false` agree and turning the flag on is still a change.

Fixing the store to write both homes was the other option and is not taken:
nothing reads the in-memory `data.errorEnabled` (save and load both let the block
field win), so it would add a second copy that only the diff could see — which is
the shape of this bug, not its fix.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* refactor(blocks): give the error-output flag a column instead of two homes

`errorEnabled` had no column, so it persisted inside the block's `data` jsonb
and was mirrored onto the block as a field on load. Every writer had to route
its `data` through `withPersistedErrorEnabled` or silently drop the toggle, the
realtime op `jsonb_set`, and change detection saw the same value twice — which
is what made the deploy badge flip between Live and "Update deployment" after
toggling the port.

Its siblings — `enabled`, `horizontal_handles`, `advanced_mode`, `trigger_mode`,
`locked` — are all boolean columns; `data` is for React Flow and subflow state.
The flag belongs with them, so it now has `error_enabled` and one home. The
shuttle helper, its `BlockData` mirror, the store's fallback read, and the
comparison exclusion the duplication forced are all gone.

Backwards compatibility, since released versions draw the error port with no
toggle in front of it: a block already wired to an error edge HAS the output on,
because there was no other way to draw that edge. That rule is now stated in
three places and none may be narrowed to read the flag alone —

- the migration backfills `error_enabled` from the edges, so live rows are true
  before any new code reads them;
- `materializeDeploymentState` derives it for a version's frozen jsonb, which the
  migration cannot reach — otherwise every workflow deployed before the toggle
  would ask to be redeployed once;
- `workflow-block.tsx` keeps it at render time for states that reach the canvas
  through neither (imports, copilot edits), where unmounting the port would make
  React Flow drop the edge leaving it.

The migration also moves any `data.errorEnabled` a developer created on this
branch onto the column and strips the key; both statements match zero rows in
production, where it never shipped.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(canvas): realign the Snowflake and Dynatrace sentences with staging's blocks

Both breaks are the class the union check cannot see: separate hunks of the same
file merged cleanly, and the result names fields that no longer exist. A sentence
that does resolves to nothing, with no throw and no log.

Snowflake's rewrite (#6474) moved database, schema, table, warehouse and
procedure onto canonical selector pairs, so seven clauses anchored on ids that
are gone. Each now names both members of its pair, which is also what keeps the
card readable for someone working in advanced mode. Its nine new operations have
sentences.

Dynatrace (#6463) scoped the mute reason to the operations that mute, because
unmuting accepts exactly one — so the two unmute sentences were asking for a
field their card no longer shows. They drop the clause.

Coverage is 4736/4736 operations across 321/321 blocks.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(api): drop the block-data error flag from the workflow contract

Left behind by the consolidation: the flag no longer lives in `data`, and a
schema that still declares it there invites the mirror back through the wire.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(deploy): compare edge handles by port, so a falsy one cannot read as changed

`loadWorkflowFromNormalizedTables` now runs handles through the canonicalizer,
which falsy-coalesces — so an edge persisted with `sourceHandle: ''` loads as no
handle at all. The server diffs that against the deployment version's raw jsonb,
which still has `''`, and the set comparison reads one edge as removed and
another added. Every workflow holding such an edge would ask to be redeployed
the moment this ships, for nothing. Two write paths use `?? null` rather than
`|| null`, so `''` is reachable.

Canonicalized inside `normalizeEdge` rather than at either call site: the two
sides are loaded by different paths and only some of them normalize, so the
comparison has to be unable to tell two spellings of one port apart however its
inputs arrived.

This is the change reverted in 066e18ac28. That revert reasoned only about
side-anchored ids, which are genuinely unreachable — it missed that the same
coalesce collapses the empty string, which is not.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(deploy): keep ignoring the error flag's old home in block data

Deploying never converged: the badge asked to redeploy again the moment it
finished, forever.

The flag lived in `data` before it had a column. `0287` moves it, but a migration
only reaches the live tables — every deployment version already written is frozen
jsonb that keeps the old key. The wire schema no longer declares it either, so Zod
strips it from the live state on its way to the client. So the two sides of the
check genuinely differ: live `data: {}` against a snapshot's
`data: {errorEnabled: false}`, reported as `data.errorEnabled` changed. Deploying
cannot fix that — the next snapshot is taken from rows that still carry the key.

Confirmed against a real stuck workflow: 18 versions, both blocks reporting
`data.errorEnabled`, and the same two states comparing equal with this restored.

Removing the exclusion in 7934df7f88 assumed the migration could reach every copy
of the value. It cannot reach a frozen snapshot, so the comparison has to keep
tolerating the old key regardless of where it survives. The block field is still
compared on its own, with `!!`, so the flag itself is not ignored.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* revert(deploy): stop tolerating a block-data shape that never shipped

The flag's stint inside `data` began and ended on this branch: `main` and
`staging` have zero mentions of `errorEnabled`, and `ci.yml` gates every deploy
job on a push to main/staging/dev, so opening a PR deploys nothing. No released
version ever wrote the key, which means no production row and no production
deployment snapshot can hold one.

That makes the exclusion permanent code apologizing for a shape that cannot
reach the database it defends. Migration 0287 already strips the key from the
live tables, which is where a one-time data fix belongs; in production it matches
zero rows, and on a developer database it makes the next deploy write a clean
snapshot.

Reverts 5ece9f9e7e. That fix was correct about the mechanism and wrong about the
scope: it read a local database as evidence about production.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* improvement(canvas): retract bystander cards during a run, slant the sweep mark

Two things about a running canvas.

A run pinned every card's action bar open and suspended every card's hover on
top of it, so the canvas became a wall of open swells that could neither retract
nor respond to a pointer — and the `isWorkflowRunning && !isRunning` hover
treatment already written for those cards was unreachable. Only the card that is
actually running is pinned now; the rest behave as they do at rest, which is what
makes hovering one bring its bar up again.

The sweep's filled slot painted a full 24px square. It now paints a slanted band
across the slot, as a hard-stop gradient rather than a `clip-path` — the two end
slots already carry one for the swell silhouette and a second would have to win a
specificity race with it. The stops hold `--surface-2` exactly, so only the shape
changes. Each variant is spelled out because Tailwind's JIT reads literal class
strings and a composed `hover-hover:${FILL}` compiles to nothing.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* improvement(canvas): fill the running sweep one way, and tighten its mark

The sweep drained back to empty after each pass, which reads as undoing the
progress the block is making. It fills left to right and starts over. The
direction flag goes with it — the state is just the count now.

The slanted mark also sat too far off its neighbours. Slant and tightness trade
against each other here: the transparent wedge has to be at least as wide as the
edge's horizontal travel, or the cut clips a corner instead of crossing the slot.
Leaning 7° off vertical instead of 17° travels 2.9px across the 24px slot rather
than 7.3px, which brings the wedge in from 26% to 12% — 3.2px a side against
7.8px, so the gap between marks drops from ~17.6px to ~8.4px with the slant
still crossing cleanly.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* improvement(canvas): fill the running bar once, edge to edge

The sweep restarted from empty every time it filled, so the bar kept re-running
ground it had already covered. It fills left to right once and holds.

The mark also sat inset in its slot, which put a gap on both sides of every join
and made the row read as separate chunks instead of one bar. It now spans its
slot edge to edge, leaving only the row's own `gap-[2px]` between marks, and
takes its weight off vertically instead: `bg-clip-content` with symmetric padding
paints a 10px band inside the 24px slot without changing the slot's size, so the
swell measured around it does not move. `--surface-2` is untouched.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* improvement(canvas): paint the running bar as right-leaning uprights

The fill read as a row of horizontal slabs. Each filled slot now paints one
narrow upright bar leaning right, so a run fills as `/ / / /`.

Geometry, since the two constraints fight: leaning the edge 15° off vertical
carries it 4.3px across the bar's 16px height, so the transparent margin has to
stay above 15% or the cut clips a corner instead of crossing top to bottom.
38%/62% leaves a 7px bar with room to spare. Height comes from `bg-clip-content`
plus symmetric padding, which does not change the slot's own size, so the swell
measured around it stays put. `--surface-2` is untouched.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* improvement(canvas): pitch the running hatch to the row, not to one bar a slot

One bar per 24px button left the rest of the button empty, so the marks
inherited the button grid's rhythm and sat ~19px apart — a row of isolated ticks
rather than a loader.

The fill repeats now, at a pitch that divides the row's own rhythm: a slot plus
its `gap-[2px]` is 26px, so a 13px horizontal pitch puts exactly two bars in
every slot and stays in phase across the gaps, including the 40px end slots.
Bars land every 13px with a uniform 6px between them, whatever the run's length.

Stops are measured along the 105° axis rather than horizontally, so they carry
the `sin(105°)` factor: a 7px bar on a 13px pitch is 6.76px on a 12.56px period.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(canvas): paint the running hatch once across the row, not per slot

The bars came out bunched in some places and spread in others. Per-slot
backgrounds cannot avoid that: each button starts its own gradient at its own
origin, so the phase resets at every slot — and the end slots are 40px against
the others' 24px, so the resets are not even uniform. Three passes of tuning the
stops were all chasing a constraint the approach could not satisfy.

The hatch is now one element spanning the row, so there is one gradient and one
phase. It sits behind the buttons and grows by width: the run/stop button keeps
an opaque fill while running and masks the part growing underneath it, and every
other slot is transparent mid-sweep so the hatch reads through. The slots no
longer paint anything themselves, and the per-slot filled flag goes with them.

`--surface-2` is unchanged; only where it is painted moved.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* improvement(canvas): close the running hatch's gaps

The hatch ran a 50/50 duty cycle — 6px of fill to 6px of air — which read as
sparse. It now runs 8px to 3px.

Both stops are measured along the 105° axis rather than horizontally, so each
carries a `sin(105°)` factor; the note records that, and that closing the gap
further is a matter of moving the first stop toward the second.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(emcn): drop the brand highlight from popover menus (#6506)

Context menus opted into a palette of their own — `variant='secondary'` for a
brand-blue row highlight and `colorScheme='inverted'` for a dark card — so the
canvas, block, toolbar, terminal, sidebar, and preview menus looked nothing like
the menus everywhere else in the product.

Removes both overrides so they inherit the same surface, border, and
`--surface-active` highlight the terminal's overflow menu already uses, and drops
the brand state from the Popover itself along with the `variant` prop that only
ever selected it. One fewer way to style a menu.

* feat(executor): opt-in per-block retry (#6505)

* feat(executor): opt-in per-block retry

Adds a per-block retry policy, off by default, surfaced in the editor's
additional-fields disclosure alongside the block's other advanced settings.

A block that opts in replays its handler while tries remain, then rethrows the
final error so the error port behaves exactly as it does for a block that never
retried — retrying only delays the existing outcome, never changes it. Retry is
deliberately indiscriminate about the failure, since there is no reliable way to
tell a transient error from a permanent one and classifying would silently do
nothing for the generic errors people turn it on for. Only throws that are not
failures are excluded: a deliberate stop, a child workflow whose own blocks
already ran their policies, and the block types whose throw is control flow
(human-in-the-loop, sentinels, subflow containers, notes, triggers).

Eligibility lives in one predicate read by both the editor and the executor, so
a block can never keep retrying after an edit that hides its control.

`retry` is a nullable jsonb column; NULL means "runs once", which is how every
existing block already behaves, so the change is inert until someone opts in.
Bounds are clamped on read rather than rejected, so a value written before a
bound moved still resolves to something runnable.

Also decouples the additional-fields disclosure from `block.advancedMode`. That
flag decides which member of a canonical pair serializes, so opening the
disclosure used to be able to drop a block's configured credential. Expansion is
now view state; the stored flag is no longer written by the editor.

Retried blocks report their try count on the trace span, shown in log details.

* fix(realtime): allow the write role to persist a block retry policy

`update-retry` was added to the protocol but not to the write-role allowlist, so
the editor applied the change optimistically while the server dropped it and the
policy never reached the database.

Adds a test asserting the write role holds every per-block operation the protocol
declares, so the next block setting cannot repeat this silently.

* fix(editor): keep a retry number field's value when it is blurred untouched

Committing on blur normalized the draft unconditionally, and an untouched field's
draft is null — which normalizes to the default. Focusing and leaving Max tries
silently reset a configured 5 back to 3.

* improvement(canvas): close the running fill to solid, slant its leading edge

Gaps gone entirely: the bar is one solid fill now.

The slant moves onto the growing edge, because a repeat with its gaps closed has
no edges left to show. 4px of run across the 16px height is the same 15° lean the
bars carried, so the fill still leans right — it just leans at its front instead
of throughout.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* improvement(canvas): return the running fill to the squares' rhythm, sheared

Marks are 24px with the row's 2px gap after them again — the geometry the slots
carried before any of this — so they land where the squares did. The shear is
the only thing that is new.

It stays on the single spanning element rather than going back to per-slot
backgrounds: one gradient means one phase, which is what lets the 24/2 rhythm
hold across the 40px end slots instead of resetting at every boundary.

Stops are measured along the 105° axis rather than horizontally, so both carry a
`sin(105°)` factor: 24px of mark is 23.18px of stop, and the 26px pitch is
25.11px of period. Writing 24/26 directly renders ~3.5% wide and drifts out of
the squares' rhythm across the row.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(canvas): trim the running fill to the swell's tapered end

The fill ran off the block. The row is a rectangle but the swell is not — its
last slot cuts a diagonal so the shape narrows toward the top, and a rectangular
overlay therefore painted past the gray edge up there while still sitting inside
it at the bottom. The per-slot version never showed this because each button's
own clip contained its fill; moving the paint onto one spanning element took that
containment away with it.

The overlay now carries the same taper, read off that slot's own path: 16.67px in
from the row's right at the overlay's top, 3.33px at its bottom, a slope of 20/24.
Only applied to the swell variant, which is the shape that tapers.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(canvas): stop the handoff highlight pinning a bystander's toolbar open

Dropping `isWorkflowRunning` from `forceOpen` was not enough: it also read
`usesSelectedVisuals`, which is `isNodeSelected || isExecutionHighlighted`, and
the handoff highlight covers the block feeding the running one. So the upstream
card kept its bar down for the whole run — the wall of open swells this was
supposed to end, one card smaller.

Those are two different questions. `usesSelectedVisuals` still drives the
TREATMENT — the graphite silhouette and `data-node-selected`, so the eye can
follow the baton — while whether the toolbar is pinned open now keys off
selection alone.

The container keeps `isRunning` by itself. Selection was never a pin there, and
its own tests hold it to opening on hover.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(realtime): refresh the error flag on a block upsert

`BATCH_ADD_BLOCKS` wrote `errorEnabled` on insert but left it out of the conflict
clause, so re-adding an existing block id kept whatever the row already held
while every sibling flag — enabled, advancedMode, triggerMode, retry, locked —
was refreshed from `excluded`. The client's value was silently discarded and the
old error-output state came back on the next load.

Mine: the insert side gained the field when the column landed and the conflict
set did not.

The other two block writers delete before inserting, so no stale row survives
them; this upsert was the only path that merged into one.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* update loader animation

* change the loader

---------

Co-authored-by: andresdjasso <andresdjasso@users.noreply.github.com>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: Waleed <walif6@gmail.com>
2026-08-10 19:21:32 -07:00
Waleed 5686b7bb83 fix(realtime): enforce room access continuously, not only at join (#6170)
* fix(realtime): enforce room access continuously, not only at join

File-doc, table, and workspace-list rooms authorized once at JOIN and never
again, so a member whose workspace access was revoked or downgraded kept live
collaborative write access — including durable Yjs document writes — for the
whole lifetime of an already-open socket. The access-revalidation sweep
explicitly skipped every non-workflow room.

- sweep every room type, authorizing each against its own resource
- share one membership policy (ROOM_MEMBERSHIP_ACTIONS) between the join check
  and the sweep, so a file-doc room keeps requiring write in both
- gate file-doc document frames and table cell selections on the cached
  permission, evicting on a confirmed loss of access
- re-check the cached decision before a join commits, so a join that authorized
  just before a revocation cannot re-enter the room
- never let a join's own cache write clobber a revocation recorded mid-flight
- surface room-access-revoked to clients; the file-doc editor falls back to
  read-only instead of accepting keystrokes that go nowhere

* refactor(realtime): one shared eviction path for revoked room access

The sweep and both per-frame gates each open-coded emit + leave + local-state
cleanup. Route them all through evictSocketFromRoom so they cannot diverge on
what eviction means; workflow keeps its historical access-revoked payload.

* fix(realtime): re-check access before workspace-list room joins too

The workspace-files / workspace-tables joins committed straight from their
authorize result, so a join that authorized just before a revocation could put
the socket back in a room the sweep had already evicted it from. Mirrors the
guard the file-doc and table joins already had.

* fix(realtime): order role-cache writes by read start, not write time

Two authorizations can start in one order and finish in the other, so the
decision written last can come from the older read. A join that authorized
before a revocation but returned after the sweep's denial would bury it,
handing the socket another full cache TTL of access. Every writer now takes a
monotonic ticket before it queries and yields only to a later-started read.

* chore(realtime): drop the test-only unguarded role-cache writer

Tests can express the same setup with commitRoomPermission + a read ticket, so
the cache has exactly one write path and no export without a production caller.

* fix(realtime): keep handler-initiated table eviction retryable

Evicting leaves the Socket.IO room synchronously, which is also how the sweep
discovers work — so a presence removal failing in the per-frame path could never
be retried and left a ghost collaborator until disconnect. Failed (or
unconfirmed) removals now hand off to the sweep's existing cleanup lane instead
of a second retry loop.

* fix(realtime): re-resolve access at join commit instead of peeking the cache

The pre-commit recheck peeked the role cache, which reports an EXPIRED entry as
unknown and fails open — so a join stalled longer than the cache TTL could
re-enter a room the sweep had already evicted it from, including a file-doc room
where the next cold-cache frame is accepted as a durable write. All three joins
now re-resolve the way the workflow join always has; it is normally a cache hit,
since the join's own authorize just warmed it.

* fix(realtime): keep the join generation guard after the access re-check

The access re-resolve added in the previous commit sat AFTER the generation /
superseded guard in the table and workspace-list joins, so a leave or a newer
join landing during that await no longer cancelled the stale join — it would go
on to leave the room the client had switched to and commit the abandoned one.
The guard is now the last thing before the commit in all three handlers, as it
already was for file-doc and workflow.

* test(realtime): use the shared sleep helper in the new join tests

check:utils bans the inline new Promise(setTimeout) form; the two stalled-join
tests were the only new offenders.

* fix(realtime): leave the prior table room only once the join is certain

A table switch left the previous room before the access re-check ran, so a
denial there aborted the join and left the client in no table room at all —
silently dropped from one it may still be allowed to occupy. The leave now
happens after the re-check, matching the file-doc and workspace-list joins.

* fix(realtime): close the table join window between re-check and commit

Moving the prior-room leave after the access re-check left Redis awaits between
that check and socket.join, and superseded() only watches the join generation —
so a sweep revocation landing in that window could still put a revoked socket
back in the room. A synchronous cache peek immediately before the commit closes
it without reintroducing the await; the authoritative resolve moments earlier
wrote a fresh entry, so a differing read IS the revocation being guarded.
2026-08-01 17:20:06 -07:00
Waleedandmzxchandra 10bfb5d139 feat(realtime): shared room spine + live Files/Tables collaboration + Yjs document editing (#5991)
* feat(realtime): add shared room identity + authorization spine (#5929)

Introduces the foundation for a unified realtime "room" model spanning the
Socket.IO presence server (apps/realtime), the durable SSE event log, and the
ephemeral pub/sub fanout — all of which today reinvent their own room identity,
naming, and authorization.

- @sim/realtime-protocol/rooms: RoomRef { type, id }, ROOM_TYPES, and a
  roomName/parseRoomName codec. WORKFLOW deliberately maps to the bare id so the
  ~40 existing io.to(workflowId) callsites and presence state keys are unchanged;
  every other room type is namespaced so id spaces cannot collide.
- @sim/platform-authz/rooms: authorizeRoom(userId, room, action) generalizing the
  exemplary authorizeWorkflowByWorkspacePermission — one resource->workspace
  resolver per room type, then the shared resolveEffectiveWorkspacePermission +
  permissionSatisfies gate.

Pure foundation, no behavior change: nothing consumes these yet. Prune graph
stays at 14/25 (platform-authz already depended transitively on realtime-protocol
via apps/realtime).

* refactor(realtime): generalize presence server to multi-room [2/N] (#5930)

* refactor(realtime): generalize presence server to multi-room (RoomRef)

Generalizes the Socket.IO presence layer from single-workflow-room-per-socket
to a domain-neutral, multi-room-per-socket model keyed by RoomRef, so a second
domain (workspace files, next PR) can reuse the same membership + presence
engine. Behavior-preserving for workflow collaboration.

IRoomManager is now domain-neutral (addUserToRoom/removeUserFromRoom/
getRoomForSocket/getRoomUsers/updateUserActivity/... all take a RoomRef). The
workflow lifecycle broadcasts (deletion/revert/update/deploy) move out of the
manager into WorkflowRoomService, composed over the generic manager.

Backward-compat by design (no workflow migration, no regression):
- Workflow Socket.IO room name stays the bare workflowId (roomName() maps
  workflow -> bare id), so the ~40 io.to(workflowId) callsites are untouched.
- Workflow Redis presence keys stay workflow:{id}:users/:meta (the type prefix
  IS "workflow").

Multi-room correctness (from adversarial audit):
- socket:{id}:workflow single-value key -> socket:{id}:rooms HASH (type->id).
- The SHARED socket:{id}:session key is deleted only when the socket leaves its
  LAST room (refcount via HLEN) — a leave from one room no longer breaks the
  other room's handlers.
- disconnect enumerates the socket's stored rooms and rebroadcasts presence per
  room, instead of picking an arbitrary socket.rooms entry.
- presence broadcasts use a per-room-type event name (workflow keeps the bare
  presence-update; others are namespaced).

Workflow handlers wrap manager calls with a shared workflowRoom(id) helper;
UserPresence.workflowId -> room (the client never reads that field).

Tests: existing 112 realtime tests pass unchanged (behavior gate) + 7 new
multi-room tests (refcounted session, presence isolation, multi-room disconnect,
per-type event names). tsc clean, boundaries + prune (14/25) green.

* fix(realtime): harden multi-room disconnect + id-guard room removal

Two fixes from an adversarial regression audit of the multi-room refactor:

- Disconnect now handles `disconnecting` (where `socket.rooms` is still populated
  and authoritative) and falls back to the live Socket.IO room set for any room
  the manager's stored state no longer tracked. This restores reliable presence
  cleanup + departure broadcast even if the Redis `socket:{id}:rooms` key was
  evicted or TTL-expired — the one behavioral gap vs the pre-refactor disconnect.
- REMOVE_ROOM_SCRIPT now only drops the socket's room mapping (and runs the
  last-room session cleanup) when the stored id matches the room being removed,
  matching the memory manager's existing id guard. Prevents a mismatched-room
  call from wiping a different room's mapping or the shared session.

+1 test (id-guarded no-op removal). 120 realtime tests pass, tsc clean.

* fix(realtime): only rebroadcast disconnect-fallback rooms whose removal succeeded

Greptile 4/5 follow-up: the disconnecting-time fallback ignored
removeUserFromRoom's boolean and rebroadcast presence even when the removal
reported false. Now it only treats a room as removed (and rebroadcasts) when the
manager confirms it — symmetric with removeSocketFromAllRooms, which already only
returns rooms it actually removed.

* fix(realtime): exclude the disconnecting socket from its farewell broadcast

Greptile follow-up (transient-Redis-failure edge): if removeUserFromRoom fails on
disconnect, the socket's presence entry can outlive it (room hashes have no TTL)
and reappear as a ghost. Disconnect now broadcasts a correction to EVERY room the
socket was in (union of the manager's removed rooms and the live Socket.IO
membership) and passes the disconnecting socket id as excludeSocketId, so it is
never shown as a collaborator regardless of whether the Redis delete succeeded.
Any orphaned entry is still reclaimed by the next join's stale-presence sweep.

broadcastPresenceUpdate gains an optional excludeSocketId; normal broadcasts are
unchanged. +1 test.

* fix(realtime): make presence broadcasts liveness-aware (root-cause ghost fix)

Presence broadcasts now reconcile the stored list against the live Socket.IO
membership (io.in(room).fetchSockets()) before emitting, via a shared
filterVisiblePresence helper. This closes the residual behind the earlier
disconnect fixes: an entry orphaned by a failed removal (room hashes have no TTL)
could reappear in a LATER join's presence snapshot until the 75-min stale sweep.
Now such an entry is never emitted, because a non-live socket is filtered out of
every broadcast. Combined with excludeSocketId (which handles the disconnecting
socket, still momentarily live). Fail-safe: on a fetchSockets throw or an empty
result while entries remain, emit the unfiltered list rather than hide live
collaborators.

Also drops a dead guard in the disconnect union loop (rooms already removed are
skipped by the wasInRooms check) and the now-unused isSameRoom import.

+1 ghost-guard test. 122 realtime tests pass.

* feat(files): live presence avatars + live file tree via realtime rooms (#5932)

* refactor(tables): adopt shared durable event-log core (#5934)

* fix(realtime): address post-merge review-comment findings (#5937)

* fix(realtime): address post-merge review-comment findings

A re-audit of every inline review comment on the merged stack surfaced real
issues that the thread-resolutions and prior audits missed. Fixes:

Presence server (#5930 comments):
- connection.ts: snapshot `socket.rooms` SYNCHRONOUSLY before the first await.
  Socket.IO clears the room set once the synchronous part of a `disconnecting`
  handler returns, so reading it after `await removeSocketFromAllRooms` saw an
  empty set — the eviction fallback was dead. (Cursor: "Disconnect fallback
  misses live rooms".)
- workflow-room-service: restore the original managers' final unconditional
  room-state wipe via a new `deleteRoom(room)` manager method, so a deleted
  workflow leaves no lingering presence/meta even if a per-socket removal failed
  or a socket joined mid-teardown. (Cursor: "Deletion skips final room wipe".)

Files (#5932 comments):
- workspace-file-manager.uploadWorkspaceFile now fans out the live-tree signal
  (all direct-upload paths: multipart fallback, copilot create, /api/files/upload,
  v1 files — the presigned path already notified). (Cursor: "Creates miss live
  tree fan-out".)
- use-workspace-files-room: clear the pending retry timer on join success; and a
  module-scoped intended-room guard defers the unmount `leave` so a rapid remount
  re-claims the room and skips a stale leave — fixing presence flap + a
  leave-after-join race. (Cursor: "Retry timer survives join success" + "Remount
  churns files presence".)
- workspace-files handler: roll back a partial join (leave room + remove presence)
  in the catch, mirroring the workflow join. (Cursor: "Join failure skips
  membership rollback".)

+2 tests (deleteRoom). 127 realtime tests pass, both apps tsc clean,
api-validation + boundaries green.

* fix(files): scope workspace-files leave to a workspace (deferred-leave safety)

Self-review of the deferred-leave guard found a real bug: leave-workspace-files
was not workspace-scoped, so after a workspace switch (A->B) the deferred leave
from A would evict the socket from its new room B. The leave now carries the
workspaceId and the server no-ops if the socket's current files room differs.
Also excludes the leaving socket from the leave broadcast (consistent with
disconnect).

* fix(realtime): close files-room presence leak + validate join payload

Architecture-audit findings:

- S1 (real Redis leak): the files room inherited the shared manager but not the
  workflow join's liveness sweep, so an UNGRACEFUL disconnect (pod crash — no
  `disconnecting` event) left its presence entry in the no-TTL room hash forever.
  Added a shared `sweepStalePresence(manager, room)` (fetchSockets liveness +
  remove not-live-AND-stale entries, matching the workflow 75min threshold) and
  run it on files join; also filter the join ack through `filterVisiblePresence`
  so a joiner never briefly sees an un-swept ghost.
- S2: validate the client-supplied `workspaceId` on files join before it reaches
  the DB query (matches the /api/workspace-files-changed guard; fails closed).
- N2: corrected the notify doc — it is awaited (guaranteed dispatch before a Node
  route returns) and hard-bounded to NOTIFY_TIMEOUT_MS, not "never block".

+1 test (sweepStalePresence keeps live/fresh, reclaims not-live-stale). 128
realtime tests pass, both apps tsc clean, biome clean.

* fix(realtime): workflow-deletion always notifies + cleans by socket.io membership

Review-round findings on #5937:
- Always emit `workflow-deleted` (was guarded by users.length>0), so a socket
  still in the Socket.IO room after a Redis presence eviction is told the
  workflow is gone before socketsLeave kicks it — the editor no longer keeps
  showing a deleted workflow. (Cursor: "Silent kick skips deletion event".)
- Clean per-socket state for the UNION of live Socket.IO members and
  presence-tracked sockets, so an evicted/late-joined socket's room mapping +
  session are dropped too — not just presence-snapshot sockets. (Greptile: "Room
  deletion leaves reverse state".)
- deleteRoom now logs AND rethrows on Redis failure (like addUserToRoom) so a
  failed wipe isn't reported as a clean deletion; the request surfaces it.
  (Greptile: "Room deletion failures are suppressed".)

The two "deferred leave drops new membership" P1s were already fixed by the
workspace-scoped leave in a prior commit (leave carries { workspaceId }; server
no-ops on mismatch). 128 tests pass, tsc + biome clean.

* refactor(files): drop module-scoped deferred-leave; rely on workspace-scoped leave

Removes the one non-idiomatic construct (a module-level mutable
`intendedFilesWorkspaceId` + queueMicrotask). It only guarded a same-workspace
CONCURRENT remount, which doesn't occur in production (folder nav is shallow/no
remount; list<->detail is sequential) — a dev-StrictMode-only case. The real
cross-workspace race is already handled by the workspace-scoped leave: if B's
join runs first (auto-leaving A), A's leave no-ops because the socket's current
files room is B. Simpler, idiomatic, prod-correct.

* feat(realtime): Yjs relay server for collaborative document editing [4/N] (#5941)

Server-side Yjs relay for collaborative document editing (live carets + text selection) in the Files rich-markdown editor. Faithful y-websocket-style relay over the existing authenticated Socket.IO connection + shared room abstraction; in-memory Y.Doc + Awareness per file; awareness ownership binding, userId-keyed client-id uniqueness, seeder election with deadline re-election, concurrent-JOIN generation guard. 25 relay tests. Reviewed to Greptile 5/5 + Cursor pass across multiple rounds, plus an independent 4-lens audit (correctness/security/conventions/simplicity) and /simplify + /cleanup passes.

* feat(files): collaborative document editing — client provider + editor (#5946)

Client Yjs provider (FileDocProvider over the authenticated socket) + TipTap Collaboration/CollaborationCaret wiring for live carets + text-selection in the Files rich-markdown editor. Collaboration is a Files-page-only surface (explicit `collaborative` opt-in), disjoint from agent-streaming. Read-only + autosave-gated until synced+seeded. Merges into the realtime-rooms integration branch.

* feat(tables): live collaboration — cell-selection presence + live mutation propagation (#5957)

* feat(tables): live cell-selection presence — protocol + server + client hook

The realtime spine for Google-Sheets-style table presence (mode A, socket):

- @sim/realtime-protocol/table-presence: centralized wire protocol (events +
  TableCellSelection {anchor, focus, editing} + payloads) so server emits and
  client subscriptions can't drift.
- ROOM_TYPES.TABLE + resolveTableWorkspace registered in ROOM_WORKSPACE_RESOLVERS
  (tableId -> workspace via userTableDefinitions, honoring archivedAt); roomName /
  presenceEventName / disconnect cleanup / authorizeRoom all derive automatically.
- apps/realtime/src/handlers/tables.ts: join/leave (mirrors workspace-files) + a
  table-cell-selection relay (mirrors the workflow selection channel), broadcasting
  via roomName(room) since table rooms are namespaced. UserPresence gains a cell
  field threaded through the memory + Redis managers (Lua ARGV[7], null clears).
- Extracted the duplicated resolveAvatarUrl into handlers/avatar.ts.
- use-table-room.ts client hook: joins over the shared socket, tracks the roster
  (avatars) + patches per-socket cell deltas, exposes a throttled emitCellSelection.

Grid UI (avatars + selection overlay) lands next; concurrent cell-value edits
(last-write-wins via the durable log) are the follow-up PR.

* feat(tables): render live cell-selection presence in the grid

Wires the table presence room into the grid UI:
- Page (table.tsx): useTableRoom (gated off in embedded/mothership mode) —
  renders <PresenceAvatars> in the header and passes remoteSelections +
  emitCellSelection down to the grid.
- Grid emits its local selection: an effect resolves the index-based
  anchor/focus to stable (rowId, columnId) via refs and broadcasts it (with an
  editing flag for the active cell) through the throttled emitter.
- RemoteSelectionOverlay: draws each remote viewer's selection in their color
  (getUserColor), a darker fill while editing, and name-on-hover — measured from
  live cell rects in the content wrapper's space (scrolls with the grid),
  hidden when rows are virtualized off-window, pointer-events-none so it never
  blocks cell clicks (hover via pointer hit-test).

* test(tables): cover the table presence handler

Mirrors workspace-files.test.ts: join auth/unavailable/denied/success, plus the
cell-selection relay (asserts it persists via updateUserActivity and broadcasts
on the namespaced roomName, not the bare id) and leave.

* feat(tables): propagate manual cell edits live (last-write-wins)

A manual row edit now appends a lightweight 'edit' event to the durable table
stream; collaborators refetch the row (via the existing debounced rows-invalidate
the job events use) so the winning value shows live. The event carries no value —
peers refetch in their own wire format, so there's no auth-specific value
translation on the wire, and last-write-wins falls out of the DB's committed order
(the Google-Sheets model). Edits that also trigger a dispatch already emit
dispatch/cell events; the debounce coalesces the two.

* refactor(tables): apply /simplify findings

- Drop the dead 'add unknown peer' upsert branch in use-table-room (Socket.IO
  ordering guarantees a peer is in the roster before their selection delta).
- TableCellSelectionBroadcast = TablePresenceUser & { cell } (was a copy-paste).
- Make TableGrid's presence props required + drop the unused empty-default/guard
  (only table.tsx mounts it, always passing both).
- Drop the unused rowId from the 'edit' event (the handler invalidates all rows).
- Overlay: subscribe scroll/resize/pointer listeners once per scroll element and
  cache the wrapper origin, so incoming deltas re-measure without re-subscribing
  and the pointer hit-test never forces a per-move layout read.
- Server: cache the immutable socket session so a selection delta no longer reads
  it from Redis every time.

* refactor(tables): apply /cleanup findings

- Fix the remote-selection name label contrast: text-white is unreadable on the
  light-pastel user colors (same bug the Files caret fixed) → fixed dark #1a1a1a.
- Re-measure via useLayoutEffect so a moving peer selection updates before paint
  (no one-frame position lag).
- Drop 'mothership' from a comment (constitution copy rule).

Six cleanup passes ran (effect, memo/callback, state, react-query, emcn, comment);
the rest confirmed clean — all state/memos/callbacks/effects are load-bearing,
presence correctly lives in useState (socket-pushed), and the edit→rows-invalidate
granularity is right.

* feat(tables): propagate every table mutation live (edit + schema signals)

Comprehensive live collaboration for all user table mutations, via two value-less
durable signals + named helpers (signalTableRowsChanged / signalTableSchemaChanged):

- edit (rows refetch): single + batch row create, cell/row update, batch update,
  delete by id/filter, and upsert.
- schema (definition + rows refetch): column add/update/delete, workflow-group
  add/update/delete, table rename, and CSV import (which can add columns).
- Client handles 'schema' by invalidating the table detail (exact) + rows.

Execution paths (column run, cancel-runs) and async jobs (delete/import-async,
job-cancel) already propagate via cell/dispatch/job events — verified applyJob
refetches on terminal. No reorder routes exist. Table archive (route DELETE) is a
deliberate follow-up: it needs a table-deleted redirect event, not a refetch signal
(which would 404).

* refactor(tables): apply comprehensive /cleanup audit findings

Holistic + react-query + comment audits over the whole PR:

- Security/crash fix: a remote peer's rowId flowed unescaped into the overlay's
  querySelector — a hostile id ('x"]') threw SyntaxError inside a useLayoutEffect,
  crashing every other viewer's page. CSS.escape it, and validate + whitelist the
  untrusted cell payload server-side (shape + 200-char id bound) before it is
  stored/rebroadcast.
- Simplify the CELL_SELECTION relay: the delta attached userId/userName/avatarUrl
  that the client discarded (identity comes from the roster). Drop them + the
  getUserSession lookup/cache entirely — the delta is now { socketId, cell }.
- React Query: schema handler also invalidates lists() (parity with the local
  column-mutation set); document that the mutating client self-refetches by design.
- Comment tightenings; biome fixed a stale import order in workspace-files.ts.

* fix(tables): broadcast single-cell selections (focus falls back to anchor)

Cursor High: a normal cell click leaves selectionFocus null (the grid treats it as
a one-cell selection via focus ?? anchor), but the presence emit required BOTH anchor
and focus to resolve — so the most common selection never broadcast and clicking even
cleared a prior remote outline. Mirror the grid's focus ?? anchor semantics.

* fix(tables): reviewer + regression + per-LOC audit findings

Cursor review round (5 findings) + regression audit + per-LOC audit:
- Presence roster snapshot now KEEPS the cell we already hold for a known socket, so
  a join/leave broadcast can't revert a fresher CELL_SELECTION delta.
- Reset the selection throttle on table switch (was unmount-only), so a pending
  selection for table A can't flush into table B's room after a switch.
- Metadata writes (column widths, display) use a new lightweight 'metadata' signal
  that refetches only the definition — a resize no longer forces peers to refetch rows.
- Overlay re-measures on row add/remove/reorder via a tbody childList MutationObserver
  (a live refetch moves cells without a scroll/resize).
- Document the actor self-refetch create caveat (scrolled multi-page insert) accurately.
- isCellRef narrows to a partial instead of casting to the full type then re-checking;
  drop a redundant mount measure() (the layout effect covers it); text-[11px]→text-xs.

* fix(tables): drop ineffective metadata propagation + re-measure overlay on column resize

Cursor round on b8f28b04b:
- Remove the 'metadata' signal entirely. The grid seeds columnWidths/pinnedColumns
  from metadata ONCE (metadataSeededRef) and deliberately never re-applies them (to
  avoid clobbering a local in-progress resize), so refetching the definition on a peer
  never surfaced their width/pin change — an ineffective path. Width/pin live-sync needs
  reconciliation that doesn't clobber a local resize; that's a deliberate follow-up, not
  a no-op refetch. Structural changes still propagate via 'schema'.
- Overlay now also observes the content layer with the ResizeObserver, so a column
  resize (which grows the content, not the scroll container) re-measures remote outlines.
- Presence-merge comment now states both sides of the trade-off.

* fix(tables): re-broadcast local selection on (re)join

Cursor Medium: a selection made before the room join completes (or held across a
reconnect) was dropped server-side and never re-sent, so peers didn't see it until
the local user moved it again. Track the current selection in a ref (set on every
emit, cleared on table switch) and re-emit it from handleJoinSuccess once the room is
joined.

* fix(tables): re-broadcast selection when a peer's row change shifts it

End-to-end lifecycle audit (Low-Med): the selection emit resolved the stable
(rowId, columnId) only on selection/editing change, not when a live edit/schema
refetch inserted/deleted/reordered rows. The index-based local selection then sat
on a different logical row than the rowId peers held, so your outline showed on the
old row until you moved. Re-run the emit on rows/displayColumns change and dedup an
unchanged result (also drops the redundant null-on-open emit) so the broadcast stays
consistent with the local highlight.

* fix(tables): schema invalidates run-state/enrichment + guard stale join

Cursor round on cdc8796b8 (2 Medium):
- schema handler used detail exact:true, so it skipped the activeDispatches +
  enrichmentDetails sibling queries the local invalidateTableSchema refreshes via a
  prefix match. After a peer deletes/restructures a workflow group, peers could keep a
  stale running badge or enrichment panel. Now invalidates both siblings too (rows stay
  on the debounce).
- Guard against a stale join stealing the room: a fast table A->B switch could let A's
  async authorize finish after B, leave B, and strand the socket in A. Added a
  per-socket monotonic join generation checked after authorize (mirrors the file-doc
  relay's guard) + a test.

* feat(tables): live column width/pin/order sync

Collaborators now see each other's column resizes, pins, and reorders live —
the last piece of Google-Sheets-style layout parity.

- New lightweight `metadata` durable event kind (distinct from `schema`): only the
  table definition carries UI metadata, so peers refetch the definition alone — no
  rows/run-state refetch. The metadata PUT route now signals it.
- The grid reconciles server metadata against its in-progress gesture: the column
  being actively resized keeps its live local width, and an in-flight column drag
  blocks a reorder apply — so a peer's change never reverts the local action. Each
  field is reference-guarded (React Query structural sharing keeps unchanged
  sub-objects stable), so an unrelated peer change doesn't re-apply the others.

* fix(tables): escalate to schema signal when a reorder scrubs group deps

Independent audit of the metadata-sync commit found a stale-run-state hole: a
columnOrder PUT that moves a column left of a workflow group's leftmost column
makes updateTableMetadata scrub that group's dependencies and write a new schema —
a real structural change. But the route only fired the lightweight 'metadata'
signal (detail-only refetch), so peers' and the actor's activeDispatches /
enrichmentDetails queries stayed stale (a lingering running badge / enrichment
panel) — exactly what the 'schema' handler exists to prevent.

updateTableMetadata now reports whether it scrubbed the schema; the route emits
signalTableSchemaChanged in that case and the light signalTableMetadataChanged
otherwise. Width/pin/plain-reorder stay on the cheap detail-only path.

* feat(realtime): accurate in-file presence + collaborative-caret polish (#5965)

Per-session file-doc presence (avatars count other sessions like the canvas), StrictMode-safe stable Y.Doc (fixes blank-doc on join), flush caret cap + restored hover hit-slop, and three join-lifecycle race fixes unifying file-doc + workspace-files on one intent-tracked monotonic generation model. All findings root-caused with regression tests.

* feat(files): smarter bullet delete/indent and untitled-file title sync (#5971)

* improvement(files): smarter bullet delete/indent, fix empty-nested-bullet heading corruption

Backspace at the start of a list item now outdents a nested item or clears a
top-level item to a paragraph in place instead of deleting the row and jumping
the caret to the previous block; Enter on an empty nested item outdents. Empty
non-trailing top-level items still collapse cleanly since they cannot round-trip
as a lifted paragraph.

Also strips nested empty list-item marker lines on serialize: a nested empty
bullet re-parsed as a Setext heading underline, silently turning its parent line
into an H2 and dropping the bullet. Top-level empty items are preserved.

* feat(files): sync an untitled file's name with its leading heading

While a file is still named untitled(.md), typing a leading heading auto-renames
the file after it (debounced), and renaming the file first seeds a leading H1
from the new name. One-shot: coupling stops once the file has a real name, and
the heading seed always prepends so existing content is never clobbered.

* fix(files): count inline atoms in list-item emptiness, keep multi-block items on Backspace

Addresses review findings on the list Backspace logic:
- Emptiness now uses the caret block's content.size (counts inline images/mentions),
  not textContent, so a bullet holding only a non-text atom is no longer treated as
  empty and deleted.
- An empty first block whose item has sibling blocks removes only that block instead
  of lifting the whole item out of the list.

* fix(files): preserve the untitled to named heading seed across a rename during editor load

The parent captures the file name at mount (before content/session finish loading) and
passes it as the transition baseline, so a rename that lands in the loading window is still
seen as an untitled to named transition and the leading heading seed is not skipped.

* fix(files): drop the name-to-heading seed, keep title sync one-way

Removes the effect that inserted a leading H1 when an untitled file was renamed. On the
collaborative Files page every open client observed the untitled-to-named transition and
inserted into the shared doc, producing duplicate headings; it could also re-insert a heading
a user had just deleted while a rename was in flight. Seeding document content from an async
rename transition is the wrong model on a shared editor. The primary direction — typing a
leading heading renames a still-untitled file — is unaffected (it never mutates the doc).

* fix(files): keep empty lines between paragraphs on reload

The chunked markdown parser (parseMarkdownToDoc) parses each block stripped of the
blank lines between them, so it dropped the empty paragraphs @tiptap/markdown builds
from runs of blank lines — a saved visual blank line silently vanished on the next
load (the settle/reopen re-seed goes through the chunker). The whole-document parser
preserves them, but whether a gap yields an empty paragraph is a global, block-type-
dependent decision (kept between two paragraphs, dropped after a heading), so it can't
be reconstructed block-locally. Route documents with empty-paragraph blank-line spacing
to the whole-document parser for exact fidelity — the same tradeoff NON_CHUNKABLE makes;
ordinary single-blank-line separation still takes the fast chunked path. Adds a suite
asserting chunked output matches the whole-document parser for leading/trailing/between
gaps and around lists/headings.

* fix(files): only auto-name an untitled file when the user can edit

The debounced untitled→filename hook ran on every onUpdate — including the mount-time
seed and for view-only viewers — without checking edit permission, so a read-only user
could schedule a rename they have no permission to make (a spurious, server-rejected
write). Gate the derive-title on editor.isEditable (canEdit + settled + collab-ready,
the same signal the autosave path uses), at both schedule and fire time.

* fix(files): normalize line endings before the empty-paragraph guard; Enter/Backspace symmetry

- markdown-parse: EMPTY_PARAGRAPH_SPACING/NON_CHUNKABLE tested the raw body, but a classic
  \r-only file (blank lines are \r) would miss the \n-anchored guard and still be chunked,
  dropping empties. Normalize line endings once up front so the routing guards, the chunker,
  and the parser all see the same \n. +CRLF/CR test cases.
- keymap: Enter on an empty first block of a multi-block item now removes only that block
  (removeEmptyWrappedBlock) instead of exiting the list, mirroring the Backspace hasSiblingBlocks
  case — the trailing check no longer swallows multi-block items. +test.

* fix(files): editor audit follow-ups (trailing-blank read-only, collab rename, over-strip)

A 4-agent independent audit (UX vs inkeep + SOTA, cleanliness, adversarial correctness)
surfaced these:

- HIGH regression: files ending in a blank line opened READ-ONLY. The empty-paragraph
  routing preserved a TRAILING empty paragraph, but postProcess collapses trailing newlines
  → serialize/parse non-idempotent → isRoundTripSafe flipped the file read-only. A trailing
  empty paragraph can't be serialized stably, so parseMarkdownToDoc now strips trailing empty
  paragraphs and the guard no longer routes on trailing blanks. Interior/leading empties are
  unaffected. +regression tests.
- Medium: the debounced untitled→filename rename fired on remote Yjs edits too, so every peer
  renamed and could rename from a not-yet-synced heading. Gate on isChangeOrigin (local edits
  only; false for non-collab surfaces).
- Medium: stripEmptyListItemLines over-stripped a nested empty item that follows a same-indent
  sibling (a real placeholder the parser keeps). Narrowed to the actual Setext hazard — an empty
  item DIRECTLY under a shallower parent line — matching the function's own docstring intent.
  Probe-verified. +test.
- Low: corrected untitled-title.ts docstring that described a reverse name→heading coupling
  removed during review.

* fix(files): a remote edit must not cancel the local rename debounce

The isChangeOrigin gate cleared the debounce timer BEFORE bailing on a remote update, so
a peer's edit arriving within the 600ms window cancelled the local user's pending rename.
Bail on isChangeOrigin first, before touching the timer; only local edits clear/reschedule it.

* docs(files): correct EMPTY_PARAGRAPH_SPACING rationale after trailing-strip

The stacked trailing-empty-paragraph strip made the older comment overstate a
correctness necessity it no longer owns, mislabel trailing runs of 2+ blanks,
and advertise dead CRLF handling. Reword to match what the code actually does.

---------

Co-authored-by: Waleed Latif <walif6@gmail.com>

* fix(realtime): access-revalidation multi-room safety + cleanup pass

Fix a blocker surfaced by a full cleanup/simplify audit of the branch: the
access-revalidation sweep (staging's workflow-only #5917) treated every entry
in socket.rooms as a workflow id, but the generalized multi-room model puts
namespaced files/tables/file-doc rooms on the same io. It would resolve those
as bogus workflows, get null, and evict files/tables collaborators every ~30s.
collectScanTargets now decodes each room name with parseRoomName and sweeps
only workflow rooms; added a regression test and fixed the now-false TSDoc.

Other audit fixes (all behavior-preserving):
- workflow.ts reuses resolveAvatarUrl (drops db/user/eq imports duplicated
  from avatar.ts)
- PresenceAvatars: mr-1 was baked into the shared component, silently adding a
  margin to the workflow sidebar stack; moved to an optional layout className,
  re-applied on the tables/file-doc header surfaces only
- table DELETE routes only signal collaborators when rows were actually removed
  (matches PUT)
- events.ts definition kind: drop the never-emitted reason:'schema', fix its doc
- event-log: rename buildMemory -> buildEntry (it builds the entry on the Redis
  success path too, not just the memory fallback)
- remove dead resolveWorkspaceIdForRoom export; parallelize per-socket removals
  in handleWorkflowDeletion; gate the table columnIndexById map on remote
  selections; move file-doc module TSDoc off the FileDocOwner interface; fix a
  stale @returns

* fix(realtime,tables): close table-presence race + v1/copilot live-collab gaps

Validated each issue with subagents before implementing the cleanest fix.

- tables LEAVE in-flight-join race (B8): the table handler tracked no current-table
  intent, so an unscoped/same-table leave during an in-flight authorize left the
  socket stranded in the room (present in the roster, broadcasting a ghost until
  disconnect). Mirror workspace-files: a closure-local currentTableId + a leave that
  advances joinGeneration to cancel the racing join. + 3 regression tests.
- v1 + copilot live-collab signal gap (D1): tables edited via the v1 public API or
  Sim/copilot emitted no edit/schema signal, so open collaborators didn't live-update.
  Add the signals at those call sites (add-only, matching the existing route seam) —
  never in the service, so execution writes can't double-emit. Sync-only for copilot
  bulk ops, guarded on affected/deleted count; async job branches stay covered by
  their kind:'job' events; create/delete/get untouched.
- table join read consolidation (B5): sweepStalePresence returns its roster so the
  same-tab dedup reuses it instead of a second getRoomUsers.
- shared authorize slice (B6): extract only the guard-safe authorize->allowed branch
  into resolveRoomJoinAuth, shared by the three room handlers (the full preamble stays
  inline — file-doc's generation capture sits mid-ladder and must not move).
- resize-revert flicker (E3): a peer's value-less metadata event forces a refetch that
  could momentarily revert a just-finished local resize; a pendingWidthWriteRef keeps
  local widths leading until the width PUT settles.
- embedded-mode stray emit (E5): gate emitCellSelection on a bound table id so the
  embedded surface stops broadcasting cell selections the server drops.

* fix(tables): close two copilot live-collab signal gaps + harden presence sweep

Follow-ups from a comprehensive review of the branch:
- copilot batch_update_rows and import_file's inline append branch wrote rows
  but emitted no live-collab signal, so collaborators didn't see those edits
  live (the append's sibling replace branch already signalled). Add the guarded
  signal to both, matching the internal route.
- sweepStalePresence now reads the roster before the fetchSockets liveness probe
  and returns it on a probe failure, so same-tab dedup still runs during a
  transient fetchSockets outage instead of being skipped.
- reword an internal comment off the retired "mothership" term.

* fix(realtime): guard table join commit + rollback against supersession; drop no-op eviction cleanup

Review round on #5991:
- Table join re-checked the generation only once after authorize, then awaited
  leave/sweep/avatar before joining + registering presence. A table switch or
  leave in that window stranded the socket in the wrong room, and the failure
  catch could tear down a newer successful join. Resolve the avatar up-front,
  re-check generation immediately before the membership commit (matching the
  file-doc join), and skip the rollback/error for a superseded join. + a
  post-authorize-window regression test.
- access-revalidation cleanup treated removeUserFromRoom's no-op false as a
  transport failure and re-enqueued a still-connected socket forever. Only retry
  when the socket is still mapped to the room (a healthy null mapping means the
  entry is already gone). Repurposed the expired-mapping test to lock it.

* fix(realtime): guard table join leave-prior against superseding join

Round 2 on #5991: a superseded join's leave-prior could still run — during its
getRoomForSocket await a newer join commits to its room, so currentRoom is that
newer room and the superseded join would leave/remove/broadcast it before the
final guard aborts. Re-check the generation immediately after the lookup await,
before the leave mutation. Extended the post-authorize-window test to assert the
superseded join never tears down the newer join's room.

* fix(realtime): roll back a table join superseded during addUserToRoom

Round 3 on #5991: after the final generation guard, A could join + register
presence while a newer join B commits to its room during addUserToRoom's await
— B's leave-prior can't observe A's half-written entry, so A's late write wins
and strands the socket. Re-check after addUserToRoom and roll back A's own
Socket.IO join + presence (scoped to A's room, never touching B). + a regression
test hanging addUserToRoom mid-commit.

* refactor(realtime): DRY table-join supersession guards; fix stale comment

Cleanliness pass after the review rounds (no behavior change):
- Extract the four identical `joinGeneration !== joinAttempt || socket.disconnected`
  checks into a named `superseded()` helper (the catch keeps its intentionally
  narrower check).
- Remove a stale guard comment that was left stranded above the avatar resolve.
- Document the best-effort rollback catch.

* fix(realtime): file-doc rebind must not drop the current doc or leave a writable ghost

Two Cursor findings on the file-doc client-id ownership rebind:
- On a document switch, the prior room was left BEFORE the ownership check, so a
  CLIENT_ID_IN_USE rejection dropped the socket from the old doc without joining
  the new one (contradicting its own comment). Run the ownership check first, and
  leave the previous doc only once the rebind is guaranteed to succeed.
- Reclaiming a client id removed the stale prior socket from owners + awareness
  only; its socketToRoomName + Socket.IO membership remained, and handleMessage's
  SYNC path gates on socketToRoomName (not owners), so it stayed able to write
  document frames until disconnect. Fully evict the reclaimed socket. + 2 tests.

* refactor(realtime): serialize table join/leave to fix map-corruption at the root

Round 4 on #5991 surfaced a race the generation guards structurally cannot fix:
two concurrent joins for one socket race on the single-valued socket→room map —
a stalled addUserToRoom for table A lands late, clobbers a newer join's map entry
to A, and the rollback then wipes it, stranding the socket (map empty while it
holds table B). Guards protect JS suspension points; they can't stop an in-flight
Redis write from landing late.

Fix per architecture review: serialize this socket's JOIN + LEAVE on a per-socket
promise chain so their multi-step async Redis commits can never interleave —
restoring the atomic-commit property the synchronous sibling handlers get for free.
This DELETES the leave-prior guard and the post-commit rollback (the code that
caused the bug); four generation guards collapse to two identical superseded()
checks (skip a superseded queued op + one pre-commit check). Reworked the
interleaving-specific tests into a fast-switch-skips-superseded test; the leave-
cancels-join tests are unchanged. Local to the tables handler — no shared-infra change.

* fix(realtime): always roll back a failed table join; re-elect file-doc seeder on reclaim

Two review findings:
- Table join: the catch skipped rollback when superseded, but a socket.join that
  landed before addUserToRoom threw leaves the socket in the Socket.IO room with no
  matching socket->room map entry — unreclaimable by any later op (cleanup keys off
  the map). Under serialization the skip is unnecessary (the newer op hasn't
  committed), so always roll back. Simpler + fixes the strand.
- File-doc reclaim: fully evicting the prior socket didn't release the seeder role
  if it held it, so electSeederIfNeeded (which no-ops while seederSocketId is set)
  never re-elected and an unseeded doc stayed empty until the deadline. Clear the
  role on eviction so the join's election picks a new seeder. + 2 regression tests.

* fix(realtime): close revoke-race ghost presence in workflow join

An access-revalidation revoke landing between socket.join and addUserToRoom
socketsLeaves the socket while its presence mapping does not yet exist, so
cleanupEvictedSocket finds nothing to remove and the join then writes presence
for a socket already out of the room — a ghost collaborator until the stale
sweep. Hoist resolveAvatarUrl (the only await in that gap) above the re-auth
check so the whole re-auth -> socket.join -> addUserToRoom section is await-free,
matching the invariant the handler already relies on for the pre-join re-auth.
+ ordering regression test.

* refactor(realtime): serialize workflow join/leave; drop dead room-authz limb

Comprehensive independent audit follow-ups:

- workflow.ts join/leave now use the same opChain + joinGeneration serialization
  as the sibling handlers (tables, file-doc, workspace-files). It was the only
  async presence path left unserialized, so a rapid workflow switch A->B (or a
  leave racing an in-flight join) could strand presence in room A — a ghost
  collaborator still receiving A's operation broadcasts until disconnect. The
  join now aborts a superseded op at start and again right before the membership
  commit, and the catch always rolls back a partial join.
- leave-workflow drops the '&& session' gate: an idle user whose 1h session key
  expired (while the 24h room mapping is still live) can now leave cleanly
  instead of being stranded until disconnect. The room ref alone suffices.
- authorizeRoom: remove the dead ROOM_TYPES.WORKFLOW resolver + its
  getActiveWorkflowContext import. Workflow authorizes through its own path and
  never flows through authorizeRoom; the map now honestly covers only the
  workspace-scoped types (files, file-doc, table).
- Remove unused isSameRoom (zero callers) and a needless useMemo in
  PresenceAvatars (plain derivation, single copy).
- Tests: 4 workflow serialization/leave regressions.

All gates green: tsc (sim/realtime/packages) 0, 204 realtime + 11 protocol
tests, biome, api-validation, boundaries, prune 14/25.

* fix(realtime): align session TTL, harden committed joins from post-success rollback

Per-module comprehensive audit follow-ups:

- redis-manager: SESSION_TTL now tracks SOCKET_ROOMS_TTL (was 1h vs 24h). The room
  set outlived the session, and since getRoomForSocket reads the room set while the
  workflow handlers gate edits/presence on `room && session`, an active-but-idle
  collaborator got wedged into 'session expired' after 1h — sticky until reload
  (activity only EXPIREs the already-gone session; only addUserToRoom re-HSETs it).
  Both keys refresh together, so they now expire together (restores the pre-refactor
  consistency, where both shared one TTL).
- workflow.ts + tables.ts: a 'committed' flag stops the join catch from rolling back
  a genuinely-joined user when a trailing ack/broadcast/metric step fails on a Redis
  blip (a pure getUniqueUserCount log-metric failure could otherwise kick a live
  collaborator after success was already acked).
- workflow.ts: leave-prior now guards `currentRoom.id !== workflowId` (a same-workflow
  re-join no longer leave→re-adds and flickers peers' presence), and the join ack is
  liveness-filtered via filterVisiblePresence — both for parity with the tables handler.
- platform-authz: honest docstring + 400 message for the workspace-scoped-only
  authorizeRoom map (workflow authorizes via its own path).
- caret-presence: corrected an over-stated batching comment.
- +1 workflow regression test (post-success failure keeps the user joined).

Gates: tsc (sim/realtime/packages) 0, 205 realtime + 11 protocol tests, biome,
api-validation, boundaries, prune.

* fix(realtime): narrow join commit-guard to post-success; skip empty presence broadcast

Two Cursor findings on the prior audit-fix commit:

- The 'committed' guard in join-workflow/join-table was too broad: a failure
  BETWEEN the membership commit and the success ack (e.g. getWorkflowState) hit
  'if (committed) return' and emitted neither success nor error, hanging the
  client while it sat in the room. Replaced with the narrower shape: only the
  purely-decorative post-success steps (peer broadcast + log-metric) are wrapped
  best-effort; anything before the success ack still rolls back and surfaces a
  retryable error, so the client retries instead of hanging — while the original
  goal (a benign broadcast/metric blip never kicking a live, acked user) holds.
- broadcastPresenceUpdate read the roster via getRoomUsers, which swallows a Redis
  transport error to []. On a disconnect broadcast that emitted an empty roster and
  cleared every remaining collaborator's presence until the next healthy update.
  Split out a throwing readRoomUsers; broadcastPresenceUpdate now skips the
  broadcast on a read failure (getRoomUsers keeps its swallow contract).
- Tests: pre-success failure rolls back + retryable error (no hang); post-success
  failure keeps the user joined.

Gates: realtime tsc 0, 206 realtime tests, biome, boundaries, prune.

* fix(realtime): harden seeder recovery, join-generation, and misc robustness

Final line-by-line audit follow-ups (all LOW/MED, no P0/P1):

- file-doc: a sole client whose seed FETCH fails was added to triedSeeders,
  re-election found nobody, and the document stayed permanently empty until
  reload. Re-offer seeding a bounded number of rounds (MAX_SEED_ROUNDS) before
  giving up. Also bound clientId to a non-negative integer (it is an ownership key).
- tables + workspace-files: validate the room id BEFORE advancing joinGeneration,
  so a malformed/rejected join can't cancel a legitimate in-flight join.
- workflow + tables + workspace-files: suppress the client-facing join error when
  the op was already superseded (a retryable error naming the abandoned room could
  make a client re-join and cancel its newer join). The rollback still runs.
- redis-manager: set isConnected=true only after scriptLoad succeeds (and reset it
  on failure) so isReady() can't report ready while the Lua SHAs are null.
- connection: apply the presence-bearing filter to the manager-removed set too
  (symmetry with the fallback path).
- http.ts: validate workflowId on the four workflow endpoints (matching the files one).
- client: clear a pending join-retry timer before rescheduling (reconnect churn no
  longer orphans a stray extra join); clear caret fade timers on plugin destroy;
  seed-effect cleanup reports NOT-ready (safe direction).
- Tests: bounded seeder recovery, cell-selection strip-junk, TABLE round-trip,
  presenceEventName.

Gates: tsc (sim/realtime/packages) 0, 208 realtime + 12 protocol tests, biome,
api-validation, boundaries, prune.

* fix(realtime): gate isReady() on loaded script SHAs, not just connection

Follow-up to the prior isConnected change, which was incomplete: the redis client's
'ready' event flips isConnected=true on connect — before initialize() loads the Lua
scripts — so a bare isConnected check reports ready while removeUserFromRoom /
updateUserActivity would silently no-op on a null SHA. Gate isReady() on the SHAs
too, so the POST endpoints return a retryable 503 during that startup window instead
of proceeding against unloaded scripts. Standard readiness-probe discipline.

* fix(files): offline read-only fallback when the realtime doc never syncs

When the realtime server is unreachable (offline, server down, socket never connects),
the collaborative editor would sit blank and read-only forever — content only arrives
via provider sync events that never fire. Add a bounded connect-deadline to the Yjs
provider: if no first sync lands within CONNECT_DEADLINE_MS, latch fatal and emit a
synthetic non-retryable join-error — the exact path a real fatal rejection already uses,
which seeds the file's stored content read-only. Latching fatal also stops a late
reconnect from syncing server state in and merge-duplicating the locally-seeded content
(the documented Yjs 'non-empty doc ignores initial value' gotcha).

Deliberately NOT adding durable Yjs snapshot persistence / server-side seeding: TipTap
can't run the markdown->Yjs conversion server-side (Collaboration extension errors under
jsdom), and a durable binary snapshot would create a dual source of truth with the
markdown file (edited by copilot / PUT / download). The client-seeder + bounded
re-election is the correct architecture for a markdown-is-truth model; this closes its
one real user-facing gap without persistence, a migration, or dual-truth.

Timer cleared on first sync, on a real fatal rejection, and on destroy. +2 tests.

Gates: sim tsc 0, 496 editor tests, biome. Needs live offline->reconnect verification.

* fix(realtime): validate workflow join id before generation bump; scope file-doc join rollback to its target

Two Cursor findings:
- join-workflow bumped joinGeneration before validating workflowId (unlike tables /
  workspace-files, which I'd already fixed). A malformed/empty join could advance the
  counter and cancel a legitimate in-flight workflow switch. Validate the id first. +test.
- The file-doc join catch called cleanupFileDocForSocket unconditionally, which keys off
  socketToRoomName. During a document SWITCH that fails before rebinding (e.g. a throw in
  client-id reclaim), that binding still points at the socket's PRIOR, valid document —
  so the rollback tore down a document the socket was validly in. Only run that cleanup
  when the binding already points at THIS join's target; otherwise the socket never
  registered as an owner here and the only leftover is a freshly-created empty room,
  dropped by destroyRoomIfIdle.

Gates: realtime tsc 0, 209 tests, biome, boundaries, prune.

* fix(files): drop late sync frames once fatal; file-doc join error suppression + retry-budget reset

Final safety-audit findings:
- CRITICAL: FileDocProvider.handleMessage had no fatal guard. After the connect
  deadline latched fatal and the editor fell back to a read-only local seed, a
  late SyncStep2 (slow server / flaky network / deploy) was still applied — merging
  server state into the seeded doc (content duplication) and flipping synced=true,
  which un-gated autosave and would persist the duplicate to the real file. fatal
  guarded (re)join but not inbound sync. Now handleMessage returns early when fatal.
  +test (late SyncStep2 after the deadline is ignored, doc stays empty + gated).
- file-doc join catch now suppresses the client-facing error when superseded
  (matches workflow/tables/workspace-files) so a retryable error for an abandoned
  file can't make a client re-join and cancel the newer one.
- table/workspace-files room hooks reset the retry budget on (re)connect so a prior
  full exhaustion doesn't block retries after a reconnect.
- presence-visibility: corrected a stale TTL comment.

Gates: tsc (sim/realtime) 0, 209 realtime + collab/hooks suites, biome, boundaries, prune.

* feat(collab-doc): server-authoritative Yjs seeding (#6008)

Server-authoritative Yjs seeding for collaborative file documents: the realtime relay
fetches a Yjs seed built from the file's markdown (via the shared TipTap engine) and
applies it once per room, replacing the client-seeder election/handshake entirely.

- DOM-free markdown<->Yjs conversion core (markdownToYDoc / yDocToMarkdown /
  applyMarkdownToYDoc) reusing the client markdown engine for parity by construction
- Internal x-api-key seed endpoint + realtime fetch; single attempt bounded under the
  client readiness deadline, guard-release for join-driven retry, read-only fallback on
  persistent failure
- Client readiness gate = synced && server seed flag; jsdom wired for the Next standalone
  build (serverExternalPackages + outputFileTracingIncludes)

Foundation only — copilot-into-doc + markdown projection + durable persistence are Stage C.

* feat(collab-doc): Sim merge endpoint for copilot-into-doc (Stage C foundation)

buildFileDocMergeUpdate(docState, markdown) computes the minimal Yjs diff that turns a live
document into target markdown, via applyMarkdownToYDoc (a real updateYFragment diff, not a
replace) — so a copilot rewrite merges with concurrent user edits instead of clobbering them.
Exposed over the internal x-api-key /api/internal/file-doc/merge endpoint the realtime relay
will call: the relay owns the doc, the app owns the conversion engine, so the relay ships the
current state and applies the returned diff. Tested incl. concurrent-edit no-clobber.

* feat(collab-doc): realtime apply-edit — merge copilot markdown into a live doc

The relay can now stream a copilot edit into open editors: applyMarkdownToLiveFileDoc finds
the seeded live room, ships its state to the app's /merge endpoint for a minimal CRDT diff,
applies it (relaying to every editor, reconciled with concurrent user edits), and reports
'no-live-room' so the caller falls back to a direct file write when nothing is open.

- Generalize the realtime->app request module (file-doc-seed.ts -> file-doc-app.ts) with a
  shared POST helper + fetchFileDocSeed/fetchFileDocMerge
- POST /api/file-doc/apply-edit on the internal x-api-key HTTP surface, returning { applied }
- Tests for the seeded-room merge relay and the no-live-room fallback

* feat(collab-doc): stream copilot edits into open editors (Stage C)

edit_content now, after its durable file write, best-effort merges the same markdown into the
file's live collaborative document (markdown files only). If a collaborator has it open, the
edit streams into their editor as a CRDT merge — reconciled with their concurrent typing —
instead of the file silently changing under them; the editor's existing autosave mirrors the
merged doc back to the file. No-op when nothing is open. Never blocks or fails the edit.

* fix(collab-doc): strip frontmatter on merge; gate live-merge to markdown

- buildFileDocMergeUpdate now strips YAML frontmatter (splitFrontmatter().body) exactly as
  the seed does. Copilot passes full-file content, so without this the frontmatter merged
  into the doc as editor content and autosave wrote it back over the file (corruption).
- Gate the live-doc merge on isMarkdownFileName (new server-safe helper) instead of the
  over-broad !isDoc, so code/text edits don't pay the realtime round-trip for a format the
  collaborative editor never renders.

* fix(collab-doc): make frontmatter collaborative so a merge can't revert it

The editor re-attaches its open-time frontmatter on every autosave, so the Stage C merge
(which triggers an autosave with no user action) could write stale YAML back over a copilot
frontmatter change — silently dropping it.

Carry the file's frontmatter in the doc's config map instead of locking it at open: the seed
stores it, the merge updates it (only when it actually changed, preserving the no-op diff),
and the editor re-attaches THAT value on save — falling back to the locked copy before the
seed lands and for non-collaborative docs. A server-side frontmatter change is now reflected
rather than reverted. New FILE_DOC_SEED.frontmatterKey; seed/merge tests cover it.

* fix(collab-doc): re-sync draft on a frontmatter-only merge

A server edit that changes only the frontmatter updates the config map but not the body
fragment, so TipTap's onUpdate never fires — the autosave draft kept the stale open-time
frontmatter, and an explicit save could revert the live change. Observe the config map and,
on a frontmatter-only change, re-attach the new frontmatter to the current body and push a
fresh draft (guarded on a synced body so it never races the seed's own onUpdate).

* fix(collab-doc): order the apply-edit/merge timeouts (outer > inner)

The Sim->realtime apply-edit timeout (4s) was shorter than the nested realtime->Sim merge
timeout (8s), so the outer call could abort while the relay was still merging — the relay
then applied the merge after edit_content had returned, racing a follow-on edit.

Split the shared realtime->app timeout: the seed keeps 8s (it reads a cold blob), the merge
gets a tight 3s (it is a pure conversion, no I/O), and the outer apply-edit is raised to 6s
so it always outlives the inner merge. Cross-referenced in comments to prevent drift.

* fix(collab-doc): address deep-audit findings (jsdom trace, timeouts, gate, races)

A 4-agent LOC audit + precedent research (TipTap/Hocuspocus/Yjs docs confirm the core
patterns are idiomatic) surfaced these real issues:

- The /merge route also lazy-requires jsdom but was missing its outputFileTracingIncludes
  entry — a Docker/standalone build would 500 with MODULE_NOT_FOUND. Add it.
- The four conversion timeouts encoded an ordering invariant (merge<applyEdit, seed<readiness)
  living only in prose across two apps. Hoist to a shared FILE_DOC_TIMEOUTS in
  @sim/realtime-protocol with a test asserting the ordering; both apps import it.
- The copilot live-merge gate used an extension-only check, but the editor treats any
  text/markdown-MIME file as markdown. Replace isMarkdownFileName with a MIME-aware
  isMarkdownFile mirroring the client, so those files stream too.
- applyMarkdownToLiveFileDoc had no per-file serialization; overlapping merges could each
  diff the same stale snapshot and apply out of order. Serialize per file via a promise chain.
- Editor hardcoded 'config'/'initialContentLoaded' instead of FILE_DOC_SEED constants (drift).
- Add .max() bounds to the merge contract body; document the best-effort-merge failure window
  honestly (open editor + merge failure can drop a copilot edit until reload — closed by the
  deferred durable-doc work).

* feat(collab-doc): multi-replica shared Yjs backend + server-side markdown persistence

Make collaborative file-doc editing correct across multiple ECS tasks (the
per-process Y.Doc previously assumed one replica per file).

- Shared Yjs backend over Redis Streams (apps/realtime file-doc-store): each
  file's stream is the ordered, replayable log of updates; a multiplexed XREAD
  tailer converges every task's in-memory doc. Coordinated single-seeder
  election (SET NX + empty-stream recheck) fixes split-brain seeding.
- Doc-sync fans out to local clients + the stream; awareness stays on the
  Socket.IO adapter. Snapshot+XTRIM compaction trims only integrated entries.
- Server-side persistence: project the live doc back to markdown via a new
  /api/internal/file-doc/persist endpoint, debounced during editing and flushed
  on last-disconnect, from the authoritative stream state. Collaborative editors
  no longer client-autosave, closing the copilot clobber-window.
- Copilot merges apply through the stream (reach the live doc on any task) and
  serialize cross-task via a Redis merge lock.
- Degrades to the original single-replica behavior when REDIS_URL is unset.

* fix(collab-doc): harden distributed locks and durability from review

Address Greptile + Cursor review of the multi-replica backend:

- Merge lock: retry LONGER than the lock TTL (guaranteed acquisition, never
  merges against a shared base while a peer holds the lock) and AWAIT the stream
  write before releasing, so the next task never diffs a stale base.
- Distributed locks (seed/merge/compact) now use ownership tokens + a
  compare-and-delete release (Lua), so a lock that expired and was re-acquired by
  another task is never stolen; acquisition fails CLOSED on Redis error.
- Seed: publish the seed to the stream AWAITED under the lock before releasing,
  so a later seeder's empty-stream fence always sees it (closes the fence's
  publish-after-release gap); TTL kept at the readiness deadline.
- Persist: persist the AUTHORITATIVE stream state even when this task's local doc
  was never seeded, and capture the local fallback synchronously so a
  last-disconnect flush never encodes an already-destroyed doc.
- Publish: retry a transient xAdd failure so a Redis blip can't silently drop an
  edit from the shared log.

* fix(collab-doc): only persist a doc a user actually edited

Cursor review: a copilot durable write landing while a doc is being seeded could
have the stale seed projected back over it on last-disconnect, clobbering the
copilot edit even with no user changes.

Gate server-side persistence on a genuine user edit (socket-origin update): a
seed-only or merge-only doc is never projected back to the file (copilot writes
the file durably itself), so it can't clobber a concurrent external write.

* fix(collab-doc): close review-round race/durability gaps

Address Greptile P1 + Cursor findings:

- Seed publishes to the shared stream AWAITED *before* seeding the local doc, so
  a publish failure leaves the doc unseeded and the stream empty for a clean
  retry rather than serving an unpublished local seed a peer would re-seed over
  (split-brain).
- flushPersist falls back to the synchronously-captured local snapshot when
  getStreamState throws (not only when it returns null), so a transient Redis
  read no longer drops the final durable write as the room is torn down.
- streamHasContent fails CLOSED (returns true on xLen error): a Redis blip can no
  longer let the seed fence pass and double-seed.
- Client collabReady initializes from the collaborative prop, so a collaborative
  editor never has a mount-window where client autosave could clobber the server
  write.

* fix(collab-doc): unstick seed retry and persist tailed edits

Cursor review:

- ensureServerSeed clears serverSeedStarted when it aborts at the streamHasContent
  fence, so a fail-closed Redis xLen (or a genuine peer-seed) no longer strands the
  room unseeded with no retry.
- Persistence dirty-tracking now marks a doc edited on any post-seed update,
  including a peer's edit relayed via the tailer (REDIS_ORIGIN), tracked via a
  seededObserved flag. The last task to leave persists real edits even if it only
  tailed them; the seed transition itself is still never counted, so a
  seeded-but-unedited doc is never projected back over the file.

* fix(collab-doc): match client markdown post-processing on server persist

Cursor review: yDocToFileMarkdown serialized the body with yDocToMarkdown only,
but the editor save path runs postProcessSerializedMarkdown before applyFrontmatter.
Server persist could therefore write markdown differing from a client save (empty
list markers, callout un-escaping) — spurious blob churn / round-trip drift despite
the byte-identical claim.

Apply postProcessSerializedMarkdown in yDocToFileMarkdown so a server persist is
byte-identical to a client save and the client's dirty-check baseline. Add a
regression test guarding the composition.

* fix(collab-doc): close durability gaps at deploy boundaries + audit polish

From a comprehensive from-scratch audit (correctness, SOTA, cleanliness,
feature-completeness):

- Persist max-wait: a continuous edit burst kept resetting the 5s debounce and
  never persisted; cap it so a burst flushes at least every 20s, bounding
  unpersisted edits.
- Graceful-shutdown flush: flushAllFileDocRooms awaited in shutdown so a rolling
  deploy / scale-in secures open edited rooms to durable markdown before exit,
  instead of relying on the stream + a surviving task.
- Compacted-snapshot catch-up now marks the doc edited (REDIS_SNAPSHOT_ORIGIN): a
  snapshot folds seed+edits into one frame, so a task catching up purely from it
  no longer treats real edits as an unedited seed and skips persisting.
- Polish: delete dead __setFileDocStoreForTest; bounded retry loop; rename
  acquirePersistSlot -> tryClaimPersistWindow with accurate docs; tailer
  object-identity guard; fix stale comments (seed route, edit-content autosave).

* improvement(realtime): post-review fixes for collab dirty-state + relay lifecycle

- collab editor no longer latches a spurious 'Unsaved changes' prompt: report
  dirty only when the client owns durability (canAutosave), since in a
  collaborative session the relay persists the doc server-side
- guard shutdown against a double SIGINT/SIGTERM running teardown twice
- disconnect local sockets before httpServer.close so shutdown exits gracefully
  instead of hitting the forced-exit timer (local-only, deploy-safe)
- return 400 (not silent 200) on an invalid workspaceId in the files-changed fanout
- clear a pending join-retry timer on reconnect so it can't fire a duplicate join

* fix(realtime): make collab-doc seeding atomic to close split-brain window

An adversarial concurrency audit found a split-brain double-seed vector: the
seed used an advisory SET NX PX lock + a SEPARATE xLen fence + an unconditional
xAdd (a non-atomic check-then-append). If the seed lock's TTL expired mid-seed
(a >4s stall after the 8s seed fetch), a second task could acquire the freed
lock over a still-empty stream, both fences read empty, and both append seeds
with distinct Yjs client ids -> duplicated document content.

- add an atomic SEED_IF_EMPTY_SCRIPT (append-iff-empty in one Redis step) +
  store.seedIfEmpty(); the emptiness check and append are now inseparable, so
  two tasks racing (even both past an expired lock) can never both seed
- ensureServerSeed uses seedIfEmpty instead of streamHasContent-fence +
  publishAndWait; the seed lock is now purely an efficiency optimization
  (avoid a duplicate fetch), not a correctness dependency
- fix the misleading comment that claimed a copilot merge is not counted as an
  edit in the multi-replica path (it round-trips as REDIS_ORIGIN and does count;
  a safe idempotent over-persist, never a lost edit)
- add interleaving tests: seedIfEmpty atomicity/fence, the split-brain
  regression under an expired lock, a peer edit during attach catch-up, and
  concurrent two-task compaction

* docs(realtime): align seed comments with the atomic-append correctness model

Greptile flagged lingering doc drift: the module + shouldSeed comments still
credited the seed lock + empty-stream check as the split-brain fix. Reframe them
so the atomic seedIfEmpty is the exactly-once guarantee and shouldSeed is an
efficiency gate only.

* feat(realtime): live workspace tables list, sharing one invalidation-room impl (#6053)

* feat(realtime): live workspace tables list, sharing one invalidation-room impl

Bring the tables list to parity with the files list: a create/rename/move/delete/
restore now propagates to every viewer live instead of waiting out the 30s
staleTime. Following the files pattern, but factoring the two into one shared
implementation rather than copy-pasting.

- add ROOM_TYPES.WORKSPACE_TABLES + its authz resolver (workspace-id-addressed,
  reuses the workspace resolver like workspace-files)
- extract setupWorkspaceInvalidationRoom (server) and useWorkspaceInvalidationRoom
  (client) — the presence-free, workspace-scoped live-list room; files and tables
  now both bind to it, so they can never drift. Event/room names derive from the
  room type. Replaces the standalone workspace-files handler + hook
- notifyWorkspaceTablesChanged fanout fired from the table service (createTable,
  renameTable, moveTableToFolder, deleteTable, restoreTable) so it covers both the
  HTTP routes AND copilot, which call the service directly
- relay /api/workspace-tables-changed endpoint; wire the hook into the tables page
- consolidate the handler test into one suite run against both room types

* feat(realtime): live tables list also covers table-folder mutations

Fold in the follow-up: a table folder create/rename/move/delete/restore now
propagates to the tables list live too, so the browser is fully consistent.

- generic notifyFolderResourceChanged(resourceType, workspaceId) dispatches the
  workspace live-list signal by resource type (a map, not a special-case if), so
  file/knowledge_base/workflow are no-ops today and gain liveness by adding a map
  entry when they adopt an invalidation room
- fired from the shared folder lifecycle (createFolder/updateFolder/deleteFolder/
  restoreFolder), covering routes AND copilot
- the tables room hook now invalidates the table folders query too, not just the
  tables list, since the page renders both

* fix(realtime): skip per-table live-list notify during a folder cascade

A folder delete/restore already fires one folder-level notifyFolderResourceChanged
for the whole subtree, but the cascade also calls deleteTable/restoreTable per
table — each awaiting its own notifyWorkspaceTablesChanged. A folder with many
tables would run N+1 sequential relay calls (each bounded by NOTIFY_TIMEOUT_MS),
blocking the mutation. Add a skipNotify option the cascade passes so only the one
folder-level notify fires.

* feat(collab-doc): Hocuspocus binary persistence + Next 16 seed/persist fixes (#6059)

* fix(collab-doc): make server-side seed conversion work under Next 16 / Turbopack

Opening a file left both collaborators read-only and stalled ~12s: the server-side
seed (markdown -> Yjs, run through the headless editor engine) was failing, so the
doc never seeded and the editor never left its readiness gate. Two root causes,
both latent until a real build/runtime (typecheck + unit tests don't exercise
either), surfaced by the Next 16 upgrade:

1. Build boundary: the server seed route imported the shared editor schema
   (`createMarkdownContentExtensions`), which pulled in the React node-view
   components (`useEffect`) -> 'client component in a Server Component'. Split each
   node's React-free schema into its own `*-schema.ts` (code-block, image,
   raw-markdown-snippet); the client editor still injects the React node views via
   the existing `nodeViews` param, unchanged.

2. Runtime DOM: the converter installs a jsdom `window` on `globalThis`, but
   Turbopack's server bundle gives bundled `@tiptap/core` a `window` that does NOT
   read `globalThis`, so `elementFromString` threw 'no window object available'.
   Externalize the `@tiptap/*` packages the converter uses (native Node require, so
   their `window` reads the real global) and fix the converter's DOM guard to gate
   on `window` (what TipTap checks) with no sticky flag.

Verified: seed route returns 200 with the Yjs update; 514 collab-doc + editor tests
pass; schema byte-identical after the split.

* feat(collab-doc): persist the Yjs binary and load it on cold-start (Hocuspocus pattern)

Adopt the industry-standard Hocuspocus store/load-document pattern so a cold room
open loads the file's last-persisted Yjs binary directly instead of re-converting
markdown -> Yjs on every open. Rebuilding the CRDT from markdown on each connect is
the exact anti-pattern Tiptap/Yjs warn against (fresh client ids -> duplicated
content); it also forced the fragile server-side headless-editor conversion on every
open. Now conversion runs only on a genuine first open or an external markdown edit.

- new table workspace_file_collab_state(file_id PK->workspace_files cascade,
  doc_state bytea, source_hash, updated_at): the Yjs binary + a hash of the markdown
  it was derived from (bounded <=~1MB by the 256KB round-trip gate). Mirrors
  Hocuspocus's extension-database (binary in a DB column). Migration 0275.
- persist upserts the binary (tagged with the exact markdown just written)
- cold-start seed returns the cached binary when its source_hash matches the file's
  current markdown; otherwise converts (and the next persist refreshes the cache)
- also externalize yjs / y-protocols / lib0 alongside @tiptap: bundling loaded a
  second yjs copy, so @tiptap/y-tiptap's 'instanceof Y.XmlElement' failed on
  app-created nodes ('Unexpected case') during Yjs -> markdown

Verified end-to-end: seed -> persist -> seed returns the exact persisted binary (a
cache hit, no re-conversion). 18 collab-doc + 51 realtime file-doc tests pass.

* fix(collab-doc): best-effort cache read + drop dead barrel

- seed: a cache-read failure (transient DB error, not-yet-migrated cache table)
  no longer aborts a cold room open — the durable markdown is already in hand, so
  fall through to conversion. Symmetric with persist's best-effort cache write.
  Addresses the Cursor Bugbot finding on the read/write asymmetry.
- remove the collab-doc index.ts barrel: nothing imported it (every consumer uses
  direct ./seed / ./merge / ./converter imports), so it was dead re-export surface.
  De-export COLLAB_DOC_FIELD accordingly — it is used only inside converter.ts.

* fix(collab-doc): stream every external file write into open editors, not just edit_content (#6070)

* fix(collab-doc): stream every external file write into open editors, not just edit_content

A copilot/mothership edit to an open markdown file did not appear live in another
user's editor: the live-doc merge bridge (mergeEditIntoLiveFileDoc) was wired into the
edit_content tool ONLY. Every other server-side write — the file tool
(/api/tools/file/manage), function_execute (/api/function/execute via
writeWorkspaceFileByPath), create_file overwrite, and the PUT /content route — went
straight to updateWorkspaceFileContent and skipped the merge, so the durable file
changed but the open editor never updated. Confirmed from live logs (the mothership
'Prepend sentence' ran read + file + function_execute — zero apply-edit calls) and
Redis (the prepended text was absent from the doc stream).

Centralize the merge at the one chokepoint every external writer shares:
- updateWorkspaceFileContent gains an opt-out "syncLiveDoc" (default on) and, after
  the durable write, merges markdown writes into any open collaborative doc (best-effort;
  no-op when nobody has it open). Any current OR future writer is covered automatically.
- persist.ts opts out (syncLiveDoc:false) — it IS the doc→markdown projection, so merging
  it back would be a persist→merge→persist self-loop.
- create_file opts its empty shell out (real content arrives via a later write) so an open
  editor never flickers to empty on overwrite; threaded through writeWorkspaceFileByPath.
- edit_content drops its now-redundant explicit merge call (the chokepoint handles it).
- binary writers (image/video/audio/ffmpeg/download) are naturally excluded — the merge is
  gated to markdown, the only format the collaborative editor renders.

Also bump the api-validation route baseline 994→996 to match the true route count already
on this branch (pre-existing ratchet drift from an earlier merge; NOT added by this PR).

* fix(collab-doc): defer setEditable out of the render phase (flushSync warning)

The collab editability-reapply effect called editor.setEditable synchronously. In collab
mode isEditable flips from readiness (synced + seeded), which is driven by a Yjs
config.observe firing synchronously inside Y.applyUpdate — so the effect can run while React
is mid-render. TipTap's React binding commits setEditable's transaction with flushSync, which
throws "flushSync was called from inside a lifecycle method. React cannot flush when React is
already rendering." Defer the setEditable to a microtask (runs right after the current commit,
before paint), guarding against a destroyed editor or a stale value before it fires.

Only the collab path (this effect) hit the warning; the streaming/settle effect's setEditable
calls run on the non-collab path where isEditable isn't driven by a mid-render Yjs observer.

* fix(rich-markdown-editor): defer non-collab settle/stream mutations off the render phase (flushSync) (#6073)

* fix(rich-markdown-editor): defer non-collab settle/stream mutations off the render phase (flushSync)

The non-collaborative streaming/settle effect called editor.setContent / setEditable /
setTextSelection / focus directly in the effect body. setContent mounts the custom node views
synchronously through the @tiptap/react flushSync path (tiptap#3764), so when this effect runs
while React is mid-render it throws "flushSync was called from inside a lifecycle method." This
is the second flushSync source (the collab editability effect was the first, fixed separately);
it fires on the agent-streaming-into-a-non-collab-editor surface.

Defer the effect-body view mutations to a microtask via a small runOffRender helper (runs right
after the current commit, before paint; no-ops if the editor was torn down). The settle block is
deferred as ONE microtask so setContent -> collapse selection -> setEditable -> focus keep their
order. The streaming rAF tick is left untouched — it already runs off-render, so it keeps writing
content directly. queueMicrotask is TipTap's own documented remedy for this warning.

497 rich-markdown-editor tests (incl. stream-settle-selection) pass; tsc + lint + api-validation
+ boundary + prune green. Needs a live check: stream an agent into a non-collab markdown file and
confirm it still renders smoothly.

* chore(rich-markdown-editor): trim verbose flushSync-defer comments

* fix(rich-markdown-editor): drop superseded settle/stream microtasks via a run token

runOffRender previously only guarded editor.isDestroyed, so if React ran the next reconcile
pass (a newer stream or settle) before a queued microtask flushed, the stale microtask could
still apply setContent/setEditable/setTextSelection over the newer state. Tag each effect run
with an incrementing token; a deferred mutation applies only when its run is still the latest
(and the editor is alive). A run token fits this effect's several early-return exits better
than a per-exit cleanup flag. Addresses Greptile/Cursor review.

* fix(rich-markdown-editor): never drop the settle selection-collapse under a superseded run

The run token drops a superseded settle's microtask, but the settle had already flipped its state
flags synchronously — so a pre-empting steady-sync run took the non-settle path and never collapsed
the selection, leaving a post-stream select-all painting the leaf-in-selection decoration. Track the
collapse as a debt (pendingCollapseRef): whichever deferred run ultimately applies — settle or the
steady-sync path — clears it, so the collapse runs exactly once on the latest content. Addresses the
Cursor review finding.

* feat(tables): show live cell-selection carets in the embedded chat panel (#6081)

The table cell-selection presence room was joined only on the dedicated /tables/[id] page
(useTableRoom was passed an empty id in embedded mode). Join it in embedded too, so the
mothership chat resource panel shows collaborators' live cell selections and broadcasts the
local one. tableId is already resolved from props in embedded (the data event stream already
uses it un-gated), and authz runs on join, so this is safe. Avatars are unaffected — they
render only in the !embedded Resource.Header, so the panel gets carets without avatars.

* feat(collab-doc): If-Match optimistic concurrency so persist never clobbers an out-of-band edit (#6085)

* feat(collab-doc): optimistic-concurrency guard so persist never clobbers an out-of-band edit

The relay projected the live Yjs doc back to durable markdown unconditionally (last-write-wins), so
a persist already in flight when an external write landed could overwrite it. Add RFC 7232 If-Match
optimistic concurrency end to end, reconciling through the CRDT (never rejecting user work):

- updateWorkspaceFileContent gains an expectedUpdatedAt guard: the write commits only if the file is
  still at that version (checked against the SELECT ... FOR UPDATE-locked row, so it is atomic with
  the write), else it throws the new ContentVersionConflictError without clobbering.
- persistFileDoc takes expectedVersion and returns a discriminated result (persisted | missing |
  conflict). On conflict it returns the current durable content + version instead of writing.
- The relay tracks the durable version its live doc is synced to — set on seed, advanced when a
  durable write is merged in (apply-edit carries the version), and on each successful persist. It is
  held cluster-wide in Redis (filedoc:syncver:{name}) so whichever task persists reads the same
  version, with the per-room value as the single-pod fallback.
- flushPersist sends that version as If-Match. On a conflict it merges the current durable content
  into the live doc (so the out-of-band edit AND the live edits converge) and retries (bounded), so
  even a last-leave flush racing an external write persists the reconciled result rather than losing
  the session's edits.

Threads the version through the seed + persist contracts and the apply-edit payload. No schema change
(reuses workspace_files.updatedAt as the version token). Tests: app-side CAS (match writes, mismatch
throws + cleans up the orphan upload), relay conflict handled gracefully without clobber/loop; 236
realtime + 76 sim collab/uploads tests, tsc x2, lint, api-validation, boundaries, prune all green.

* chore(collab-doc): heartbeat-refresh the synced-version key TTL alongside its stream

Keep filedoc:syncver:{name} alive as long as the room's stream (it was only re-set on
seed/merge/persist), so an open-but-idle doc's persist If-Match token can't expire and force a
needless reconcile.

* fix(collab-doc): stop persist-conflict retries when there is no live doc to reconcile

On an If-Match conflict with no live doc to reconcile into (last collaborator gone, no shared
stream), applyMarkdownToLiveFileDoc returns no-live-room; re-projecting the same pre-teardown
snapshot would only re-conflict, so break the retry loop immediately and leave the out-of-band
(durable) content authoritative — the intended conflict policy. Addresses Greptile review.

* fix(collab-doc): close three optimistic-concurrency edge cases from review

- Single-pod persist retry projected the pre-reconcile snapshot (captureState always returned the
  initial localState), while the synced version had been advanced by the reconcile — so the If-Match
  could pass and clobber the reconciled edit. captureState now re-reads the live doc on each attempt
  (falling back to the pre-teardown snapshot only once the room is gone).
- The synced version was recorded from this task's own seed FETCH before knowing whether this task's
  seed actually won; a peer winning with a different version could leave a newer token than the stream
  content. Record it only inside the didSeed branch (the task whose seed won); peer-seeded tasks read
  the winner's cluster value.
- Persist wrote UNCONDITIONALLY when no version was available (relay version momentarily missing), which
  could clobber non-empty durable content. It now returns conflict for a non-empty file with no version
  (reconcile/retry once the version is re-established); an empty file's first write stays unconditional.

* fix(collab-doc): defer (not reconcile) on missing version, and use the freshest version token

- Missing-version persist now returns 'deferred' instead of 'conflict'. A missing version token (a
  Redis blip on a peer-seeded task) is NOT a genuine out-of-band change, so triggering a reconcile
  would wipe live edits (incoming-wins) even though nothing changed durably. Deferred means: don't
  write, don't reconcile — leave the edits in the stream and let a later persist write them once the
  version is re-established.
- currentVersion now takes the MAX of the cluster (Redis) and local room versions rather than always
  preferring Redis, so a lagged/failed fire-and-forget Redis set can't shadow a newer local value and
  cause spurious If-Match conflicts. Versions are monotonic epoch-ms, so the larger is the later sync.

* fix(collab-doc): make persist If-Match teardown-race-immune and recover missing version on final flush

Close two last-leave concurrency holes Cursor flagged:

- Thread the reconciled version LOCALLY through the persist retry loop. After a
  conflict+reconcile the correct next If-Match is exactly result.version, so carry
  it in a local var instead of re-deriving from room.syncedVersion/Redis. On a
  last-leave flush destroyRoomIfIdle removes the room from the map before the async
  flush finishes, so mergeMarkdownIntoRoom's recordVersion can no longer update
  room.syncedVersion — threading makes each retry's precondition correct by
  construction, immune to that dropped mutation and to a best-effort Redis re-read.

- Cache the resolved version back into room.syncedVersion in currentVersion() so a
  peer-seeded/tail-only task (which never sets it locally) or a later transient
  Redis read failure still resolves it from the last value seen (monotonic max,
  never regresses).

- On a FINAL flush, briefly retry resolving the If-Match when the version read
  momentarily fails, rather than deferring and stranding the session's edits in the
  TTL'd stream — the version is cluster-wide and heartbeat-refreshed.

* fix(collab-doc): stamp cluster sync version the moment the seed wins, before the liveness guard

The winning seeder set the If-Match token (room + Redis filedoc:syncver) only after the
liveness/seeded guard that follows seedIfEmpty. But the tailer can integrate the just-appended
seed DURING the seedIfEmpty await, so isDocSeeded(room.doc) is already true when the guard runs
and it returns early — leaving the stream holding seed content with no cluster version. Later
persists then send no If-Match, the app returns `deferred`, and session edits stay only in the
TTL'd stream (the exact stranding this PR prevents elsewhere).

Move the version stamp to immediately after seedIfEmpty wins, before the guard. Recording it only
once our seed won (not from the fetch) is preserved, so it still can't shadow a peer's winning
seed.

* fix(collab-doc): make the synced-version token monotonic at every write site

The If-Match token is written fire-and-forget from the seed stamp, merges, and persists, both
locally and to Redis. An out-of-order write (e.g. a seed's lagged setSyncedVersion landing after a
later merge's) could regress it below the version the live doc already incorporates, causing
spurious If-Match conflicts — and on a last-leave flush with no live room to reconcile into, a
spurious conflict leaves durable authoritative and drops the session's edits.

- setSyncedVersion now writes via SET_VERSION_IF_NEWER_SCRIPT (Redis-side compare-and-set): it
  overwrites only when the new value is greater, refreshing the TTL either way.
- recordVersion / the persisted branch / the seed stamp all take Math.max instead of assigning
  room.syncedVersion directly.

Versions are monotonic epoch-ms, so "newer" is a plain numeric compare, exact within a Lua double.

* fix(collab-doc): close three last-leave persist edge cases from review

- Stale snapshot after reconcile (High): the multi-task captureState fell back to the pre-await
  localState snapshot even after a reconcile advanced ifMatch, so a failed stream re-read could
  persist the pre-reconcile state against the new version and clobber the out-of-band edit the
  reconcile just incorporated. NULL localState after a reconcile so a failed read aborts instead.

- Lock miss aborts reconcile (Medium): a merge-lock acquisition failure returned 'no-live-room',
  indistinguishable from an absent stream, so flushPersist treated transient contention as
  terminal. Return a distinct 'merge-unavailable' and handle it as retry-later (edits stay in the
  stream), never as "nothing to reconcile into".

- Peer syncver never recovers (Medium): the winner's setSyncedVersion was fire-and-forget with
  swallowed errors — the only way a peer-seeded task learns the durable version — so a dropped
  write left that peer deferring forever. Make it retry (bounded) like appendUpdate/seedIfEmpty;
  the monotonic script keeps a racing retry a no-op.

* fix(collab-doc): scope the persist If-Match to a content version so metadata bumps can't clobber edits

The optimistic-concurrency validator was `updatedAt`, which rename/move/delete/restore also bump
with no content change. A racing live-doc persist then saw a stale token, got `conflict`,
reconciled the pre-edit durable body via updateYFragment (incoming-wins on overlap), and wiped the
user's in-flight edits.

Scope the validator to content (RFC 7232 semantics — validate the representation, not the row):
- New `workspace_files.content_updated_at` (NOT NULL, `now()` fast-default — no table rewrite).
  Advances ONLY on content writes (upload / overwrite / create); metadata writes never touch it.
- The FOR UPDATE CAS, the merge-notify version, and the seed version all use `content_updated_at`.
  A rename now leaves it unchanged, so the persist If-Match still matches -> no spurious conflict,
  no reconcile, no lost edits. Genuine out-of-band content writes still conflict and reconcile.
- Consolidated the collab schema into one migration (the collab-state table + the new column) per
  request, rather than a separate follow-up migration.

Relay/store/contracts unchanged (still a numeric monotonic version).

* chore(collab-doc): condense the densest persist comments (no behavior change)

Cleanup pass: tighten the three longest comment blocks added while hardening the persist path
(currentVersion cache, ifMatch threading, final-flush version retry) without dropping any invariant.
No dead code found (biome lint clean; all new symbols referenced).

* fix(collab-doc): persist must return the content version, not updatedAt

Follow-up to the content-scoped If-Match: persistFileDoc still returned `updatedAt` as the version
in both the persisted and conflict results, while the CAS/seed/merge all guard on
`content_updated_at`. A content write sets both to the same instant, so it was coincidentally
correct — until they diverge: if a metadata write bumps `updatedAt` past `content_updated_at`, the
conflict path returned the larger `updatedAt`, so the relay's re-persist sent an If-Match the CAS
(which checks `content_updated_at`) could never match → perpetual conflict → dropped reconciled
edits. Return `contentUpdatedAt` in both paths so the relay's token always matches what it's checked
against.

* fix(collab-doc): defer persist whenever the version is missing; guard the content-version test

- Empty-file CAS race (Medium): the unconditional-write carve-out for size===0 read `record.size`
  outside the write transaction, so a concurrent first content write could land after the check and
  be clobbered. With content_updated_at NOT NULL every existing file always has a real version, so a
  missing expectedVersion is always transient — always defer, never write unconditionally. Removes
  the TOCTOU hole.
- Content-version test (Low): the merge-chokepoint test kept updatedAt == contentUpdatedAt, so it
  passed even if wired to the wrong field. Mock distinct values and assert contentUpdatedAt, so a
  regression to updatedAt now fails the test.

* fix(collab-doc): don't reconcile a conflict the live doc already reflects (would wipe newer edits)

flushPersist reconciled the durable body into the live doc on every conflict. But when the conflict
comes from a racing self-persist (or an apply-edit the chokepoint already merged), the durable body
is a STALE SUBSET of the live stream, and the incoming-wins updateYFragment merge moves the doc
backward — wiping newer in-flight edits, which the retry then persists.

Before reconciling, re-check the freshest synced version. If it already covers the conflict version,
the live doc has already incorporated that content (or is ahead), so skip the reconcile and just retry
with the freshest version as If-Match — the re-projection captures the current live stream, preserving
every edit. Only a genuine out-of-band change the live doc hasn't incorporated (freshest < conflict
version) is reconciled in. freshest never exceeds the durable version, so this can't loop.

* fix(collab-doc): make content_updated_at monotonic per file; skip-reconcile can't loop

The If-Match token was stamped with app-local new Date() on each content write, so cross-instance
clock skew could stamp a later write with an EARLIER content_updated_at — breaking the version
ordering the whole optimistic-concurrency scheme (and the skip-reconcile branch's freshest>=version
assumption) depends on. Under skew the relay's monotonic syncedVersion could exceed the durable
version, sticking the If-Match: persist conflicts forever, exhausts retries, drops the session's edits.

- Stamp content_updated_at strictly after the current committed value (we hold the row's FOR UPDATE
  lock): new Date(max(now, currentFile.contentUpdatedAt + 1ms)). Monotonic per file regardless of
  clocks; also removes same-millisecond collisions. updatedAt stays plain wall-clock (display/sort).
- Skip-reconcile branch retries with result.version (the durable value the CAS will match), never
  freshest (which could exceed it and loop). Belt-and-suspenders now that the version is monotonic.

* refactor(collab-doc): drop the destructive in-persist reconcile; adopt-version-and-retry on conflict

The in-persist reconcile projected the durable body back over the live doc via updateYFragment
("make the doc match"). That is destructive: when the live stream is already ahead — the common case,
because the write chokepoint (mergeEditIntoLiveFileDoc) already merged the out-of-band change into the
stream — it moved the doc backward and wiped newer in-flight edits. This produced a run of races
(stale snapshot, wipe-newer-edits, version-lag skip miss) that a full-document reconcile fundamentally
can't avoid, since deciding when it's safe relies on a laggy cross-task version token.

Remove it. On conflict, adopt the durable version as the new If-Match and retry: captureState re-reads
the current stream (which holds the out-of-band change AND the live edits), so the re-projection
persists the converged result. The durable change reaches the live doc via the chokepoint, never here.
Trade-off: the only unmerged out-of-band write is one whose chokepoint merge itself failed (rare,
logged), which we accept over the frequent reconcile-wipes-edits race.

- flushPersist: conflict -> ifMatch = result.version, retry (bounded). No applyMarkdownToLiveFileDoc.
- conflict response drops `markdown` (contract + relay type + persist) — no body needed, saves a blob
  fetch. applyMarkdownToLiveFileDoc stays (still used by the apply-edit route / the chokepoint).

* fix(collab-doc): don't let a last-leave conflict retry clobber via the stale local snapshot

Regression from dropping the reconcile: on conflict the retry adopts result.version and re-reads
captureState. But after single-pod last-leave teardown the room is already destroyed, so captureState
falls back to the pre-teardown localState (which lacks the out-of-band change); the retry then CAS-passes
and overwrites the committed external write — undoing the external-wins last-leave policy.

Null localState on the first conflict, so the retry can only use freshly-read authoritative state
(stream / live doc). When none is available (single-pod room gone, or a transient stream-read failure)
captureState returns null and the retry stops, leaving durable content authoritative. Covers both the
single-pod and multi-task-stream-unavailable variants of the stale-snapshot clobber.

* fix(collab-doc): stop (don't re-persist) on a persist conflict — closes the commit-window clobber

The conflict retry adopted the durable version and immediately re-persisted the current stream,
assuming the stream already held the out-of-band change. But an external write commits durable BEFORE
its chokepoint merge (mergeEditIntoLiveFileDoc) reaches the stream, so a persist landing in that window
CAS-passed with a stream that still lacked the external content and clobbered the committed write — not
just the rare merge-failed path, but a race on every external write, worst at last-leave flushes.

Make persist a single attempt: on conflict, STOP and leave durable authoritative. The chokepoint merges
the change into the stream and — only once it is actually there — advances the synced version via its own
recordVersion; a later flush (debounced or final) then projects the converged stream with a matching
token. The session's edits stay in the stream meanwhile. The conflict handler deliberately does NOT
advance the synced version, or the next flush would clobber with a still-behind stream. Removes the retry
loop and PERSIST_CONFLICT_RETRIES.

* improvement(tables): fire the live-rows signal on async delete, run cancel, and column run (#6094)

* improvement(tables): fire the live-rows signal on async delete, run cancel, and column run

These three table operations mutate row data but emitted no `rows` change signal, so open editors'
grids stayed stale until a manual refresh (enrichment *results* already stream live via `cell` events;
these are the bulk paths that don't emit per-cell events):

- Async row delete (`runTableDelete`): signal as rows drop out (throttled with the existing progress
  event) and once more on completion — the `job` progress event only drives the delete meter, not the
  rows query. Covers the delete-async route and the copilot bulk-delete, since both share the runner.
- Cancel runs (`cancel-runs` route): cancelling clears each affected row's exec state; the
  `dispatch: cancelled` events drop the run overlay but the client then renders authoritative DB state,
  so refetch. Only when something was actually cancelled.
- Run column (`columns/run` route): starting a run bulk-clears the target group's cells to pending;
  refetch so the cleared cells show. Only when a dispatch was actually created.

Guarded so no signal fires on a no-op/failure. Adds a delete-runner test asserting the completion signal.

* fix(tables): guarantee the live-rows signal on every mutating path (review)

- Delete runner (Greptile P1): a batch could commit and the job then cancel/supersede before the next
  throttled progress signal or `markJobReady`, bypassing both signals and leaving deleted rows on
  screen. Track `deletedAny` and fire the grid refetch in a `finally`, so it runs on EVERY exit —
  completion, cancel/supersede, mid-batch lock, or a rethrown error after a partial delete.
- cancel-runs / columns/run routes (Cursor): the `cancelled > 0` / `if (dispatchId)` guards don't
  always reflect DB row changes — cancel tombstones exec state even when 0 dispatches were active, and
  a run bulk-clears cells then can return a null dispatchId. Signal unconditionally; a stale-but-harmless
  refetch beats a missed one.
- Tests: assert the delete signal fires on the mid-run-cancel-after-delete path and NOT when nothing
  was deleted.

* fix(tables): mark deletedAny before the page delete so a mid-page lock still refreshes the grid

`deletePageByIds` commits in internal batches, so a delete lock landing mid-page can persist earlier
batches and THEN throw TableLockedError — the catch returns without a count, so setting `deletedAny`
from the return value missed it and the finally skipped the grid refetch. Set `deletedAny = true` before
the call (any attempt may commit rows); an attempt that commits nothing only over-refetches (harmless).
Adds a test asserting the signal fires when a page throws a mid-page lock.

* fix(files): make embedded resource file view collaborative (#6095)

* fix(files): make embedded resource file view collaborative

The /chat resource panel rendered saved files through FileViewer without
the collaborative opt-in, so a file open on the Files page and the same
file open in the embedded panel never joined the same file-doc room —
no live carets and no live content sync between the two surfaces.

Pass collaborative on the EmbeddedFile FileViewer. Collaboration still
self-gates on canEdit + non-streaming + workspace doc, so the agent
token-stream preview (the dedicated streaming-file path, canEdit=false)
is untouched.

* fix(files): refcount file-doc room membership per shared socket

Two collaborative surfaces in one tab (the Files editor and the embedded
chat resource panel) share one Socket.IO connection, so both providers for
the same file JOIN the same room over that socket. The server's LEAVE does
socket.leave(name) with no membership refcount, so the first provider's
destroy() would strand the second still-mounted one — no more live content
or presence.

Count live providers per file per socket (keyed by the stable Socket object,
so it survives reconnects) and emit LEAVE only when the last provider for a
file tears down. The single-provider path is unchanged (0->1->0).

* feat(tables): propagate shared saved-view changes to collaborators live (#6100)

Table views (named filter/sort/layout presets) are table-wide shared state —
every reader sees every view — but view create/update/delete had no realtime
signal, so a collaborator only saw another user's view changes on their own
staleTime/focus refetch.

Add a 'views' table event kind + signalTableViewsChanged, emitted from the
views service (createTableView/updateTableView/deleteTableView, on real
success only), and a client handler that invalidates the views query alone
(no rows/definition refetch — a view is presentation state on the loaded
table). Mirrors how row/schema/metadata changes already propagate.

* test(tables): cover the views realtime signal (emit + on-success-only) (#6101)

- events.test.ts: signalTableViewsChanged appends a single 'views' event
  carrying the tableId (through the real memory buffer).
- views/service.test.ts: create/update/delete emit signalTableViewsChanged
  on real success, and DON'T on a no-op (a PATCH/DELETE targeting a missing
  view changes nothing, so it must not signal). Mirrors delete-runner's
  signal-path coverage; drives the DB via the shared dbChainMock.
- Add tableViews to the comprehensive @sim/db/schema test mock so the
  service tests can queue the in-transaction existence row.

* chore(ci): reconcile api-validation baselines after the staging merge

The staging merge unioned realtime-rooms's own `as unknown as` cast
(lib/collab-doc/converter.ts) with staging's zod-recursive-type cast
(lib/api/contracts/tables.ts), so the non-test double-cast count is 9 —
both casts pre-existed and were individually accepted on their branches.
Also tighten rawJsonReads 6->5 to the true current count. Fixes the strict
API contract boundary audit on realtime-rooms.

* feat(copilot): stream file edits into the live collaborative Y.Doc (keep embedded view collaborative) (#6108)

* feat(copilot): stream file edits into the live collaborative Y.Doc

Copilot's file edits previously only reached the live doc once, at the final
edit_content write, so a collaborative editor watching the file saw nothing
until completion (streaming looked broken) and the client-side preview path
was suppressed in collab mode.

Make copilot a CRDT peer: as it streams append/update/patch content, merge the
growing markdown into the file's live Y.Doc via the existing apply-edit path
(a minimal updateYFragment diff, concurrent-edit-safe), throttled to ~250ms.
version is omitted for these intermediate merges — they advance the live doc
for viewers but are not durable checkpoints; the final edit_content write
carries the real contentUpdatedAt and reconciles the durable file. Per the
relay's persist gating, server-internal merges never schedule a persist, so a
copilot-only stream produces zero intermediate file writes.

- notify.ts: mergeEditIntoLiveFileDoc version is now optional (streaming omits it).
- file-preview-adapter.ts: throttled live-doc merge at the edit_content stream hook.

* fix(copilot): order + gate streaming live-doc merges; fast collab first render

Harden the streaming merge (adversarial review):
- Order + bound: dispatch through a per-file in-flight guard (drop-while-in-flight)
  so a stale out-of-order snapshot can never land after a newer one and regress
  the doc, and relay load is capped at one request per file regardless of rate.
- No wipe: gate append/patch on the base file content having loaded — a base-less
  snapshot would diff to a delete-everything wipe of the seeded doc; update streams
  a full rewrite from scratch and needs no base.
- Markdown-only gate: non-markdown files have no collaborative room, so skip the
  wasted relay round-trip.

Fast collab first render (Issue 2): render the already-fetched markdown read-only
via generateHTML while the collaborative doc seeds, with the editor mounted-but-
hidden in the same layout box for a seamless swap on collabReady. Pure HTML — it
never touches the Y.Doc (client seeding duplicates the doc), and generateHTML
escapes text (raw-HTML snippets render escaped), so no XSS.

* test(copilot): cover streaming file edits into the live collaborative Y.Doc

Drives edit_content args_delta stream events through processFilePreviewStreamEvent
and asserts the live-doc merge: fires with the growing FULL previewText and no
version arg; is throttled (~250ms per file); is skipped for non-markdown files
and for a base-less append (the delete-everything wipe guard); and runs at most
one-in-flight per file. Verified to fail if any gate/guard is removed.

* fix(collab-doc): coordinate live-doc merge ordering in one place; close durable-clobber race

The second review found a residual: the durable edit_content write went through a
different path than the adapter's in-flight guard, so a late straggler streaming
merge could land after it and, via a persist, clobber the durable file's tail.

Move the per-file coordination into mergeEditIntoLiveFileDoc (the one place both the
streaming and durable paths call): a streaming (versionless) merge is dropped while
one is in flight for the file; a durable (versioned) write instead WAITS for the
in-flight streaming merge, so the final content is always the last merge applied and
can't be regressed by a straggler. Simplifies the adapter (drops its Set + helper).

Relocate the one-in-flight test to notify.test.ts (streaming-drops-while-busy +
durable-waits-then-applies-last); the adapter test keeps throttle/gates/previewText.

* fix(copilot): address review — order merges, exclude update, gate throttle, unhide stream

Review round on #6108:
- Greptile P1 (durable merges lose ordering): serialize ALL merges per file on one chain in
  mergeEditIntoLiveFileDoc (each chains after the current tail), so concurrent durable writes
  can't resume-and-fire out of order. notify now exposes isLiveDocMergeInFlight.
- Cursor High (update stream blanks the doc): only append/patch stream — they build on the loaded
  base; update is a from-scratch rewrite whose partial snapshot would diff the full doc toward a
  fragment, so it applies atomically at the durable write.
- Cursor Medium (throttle advances on a dropped merge): the adapter gates on !isLiveDocMergeInFlight,
  so the send throttle advances only on an actual dispatch — no lag, no backlog behind a slow relay.
- Cursor Medium (placeholder hides a live stream): show the fast-render placeholder only when not
  streaming, so a stream that starts before the doc seeds shows through the editor.
- Soften merge.ts/notify.ts comments per the lifecycle audit: only UNTOUCHED regions are preserved;
  a region the merge rewrites reconciles toward copilot's content.

Tests updated: notify covers chain ordering + isLiveDocMergeInFlight; adapter covers append streaming,
throttle, non-markdown/base-less/update skips, and the in-flight skip.

* fix(collab-doc): reject stale durable merges at the relay (cross-process ordering)

The in-process merge chain only orders merges within one apps/sim process. Two durable
writes for the same file on DIFFERENT processes could reach the relay out of dispatch
order; the relay recorded the version monotonically but still APPLIED the older markdown,
regressing the live doc while the token stayed high (a later persist could then write the
stale content back over the durable file).

Enforce ordering at the relay — the single cross-process coordination point — using the
existing Redis primitives: under the per-file Redis merge lock, read the cluster-wide
synced version and SKIP a versioned merge that is not newer (a newer durable write already
landed). Make recordVersion await setSyncedVersion so it is durable before the lock
releases, so the next holder's staleness check reads a consistent value. Streaming
(versionless) merges are unaffected — they carry no durable version and are ordered
per-process by the caller.

Adds a relay test asserting a stale/idempotent versioned merge returns 'stale' and never
computes or publishes a diff.

* fix(copilot): match durable path — detect markdown by MIME type + name at the stream gate

The streaming gate checked isMarkdownFile with only the filename, while the durable merge
uses type + name — so a text/markdown file without a .md extension was skipped mid-stream
(it self-corrected at the durable write). Pass editIntent.contentType so streaming detects
the same set of markdown files as the durable path.

* test(copilot): assert throttle follow-through after an in-flight merge clears

* fix(collab-doc): order streaming merges by streamedAt so a late snapshot can't regress a newer durable write

* refactor(collab-doc): tidy merge-order docs + relay order object; cover multi-replica streaming stale-check

* fix(collab-doc): order streaming merges by causal base version, not wall-clock

A streaming snapshot now carries baseVersion (the durable contentUpdatedAt it was
built from) instead of a wall-clock streamedAt. The relay drops the snapshot when a
newer durable write landed since that base, so a concurrent human save can no longer
be clobbered in the live doc and then persisted over the durable file. Skew-immune:
both keys are DB-monotonic contentUpdatedAt values.

* fix(collab-doc): derive streaming baseVersion as contentUpdatedAt ?? updatedAt

Match the version line the seed/persist use so a legacy file with no content
version still ships an ordered streaming snapshot instead of an unordered one.

* fix(collab-doc): fail-closed on a streaming snapshot with no baseVersion

The live-merge gate now requires a numeric baseVersion, not just loaded base
content. A rare base with no file record (hence no version) would otherwise ship
an unordered snapshot the relay can't stale-check, risking a clobber of a
concurrent durable write. Skip the live merge instead; the durable write reconciles.

* docs(collab-doc): document the accepted concurrent-independent-streams limitation

* chore(ci): reconcile api-validation baseline after the staging merge

The merge commit auto-merged the baseline at 1000; bump totalRoutes/zodRoutes to
1003 for staging's three new contract-bound routes (nonZodRoutes still 0).

* test(files): update storage-accounting assertion to the mergeEditIntoLiveFileDoc options object

* fix(collab-doc): trace the full yjs/tiptap external stack into the file-doc route bundles

The seed/merge/persist internal routes run the collab-doc converter (markdown <-> Yjs
via headless TipTap) server-side. Those deps are serverExternalPackages, and the
standalone tracer only force-included jsdom — it does NOT follow yjs's ESM subpath
imports of lib0 (lib0/logging, ...), so Docker/standalone builds shipped node_modules
without them and the seed route 500'd (Cannot find module 'lib0/logging'). That left
every collaborative document unseeded and permanently read-only on deployed envs.
Force yjs, lib0, y-protocols, and @tiptap into the trace for all three routes.

* fix(collab-doc): copy the full yjs/lib0 stack into the app image

The seed/merge/persist routes run the converter (markdown <-> Yjs) server-side. yjs is a
serverExternalPackage and the Next standalone tracer copies lib0 only partially — it drops the
ESM subpath file lib0/logging.js that yjs.mjs imports via lib0's exports map, so the seed 500s
('Cannot find module lib0/logging') and every collaborative doc is stuck read-only. Verified in
the running dev container: /app/node_modules/lib0 had 37/38 files, logging.js missing.

outputFileTracingIncludes can't fix it — its globs resolve against apps/sim, but these deps hoist
to the monorepo-root node_modules, so the glob matches nothing (my prior next.config attempt was a
no-op; reverted). Instead COPY the complete lib0/yjs/y-protocols from the deps stage in the runner,
overwriting the partial trace — the same pattern already used for isolated-vm.

* feat(files): stream copilot edits into the collaborative doc smoothly (#6122)

* feat(files): stream copilot edits into the collaborative doc smoothly

- apply the agent stream client-side into the live Yjs binding as minimal
  updateYFragment diffs (like main's setContent, but incremental) so it renders
  smoothly AND broadcasts to every peer via CRDT — a collaborator on /files sees
  the stream for free
- gate the apply on collabReady so diffs never land on an unseeded doc; keep the
  read-only placeholder visible until the seed swaps in
- run streamed ops under a dedicated tx origin so they stay out of the user's
  undo stack
- delete the throttled server-side streaming merge and the baseVersion ordering
  machinery it needed (relay + notify + session contract); the durable final
  write still reconciles open editors and seeds late joiners

* fix(files): apply agent stream as a true CRDT peer + guard base-less snapshots

Review round 1 (Greptile P1s):
- apply the stream against a private shadow replica (seeded from the live doc at
  stream start) and relay only the agent's own delta into the shared doc, so a
  concurrent peer edit to a region the agent snapshot didn't include is no longer
  reverted (previously the whole-body reconcile deleted it)
- gate append snapshots on "must extend the base": a base-less append fragment
  (emitted before the base loads) can no longer reconcile the seeded doc to a wipe;
  patch still legitimately replaces a mid-region
- gate the apply on collabReady so diffs never land on an unseeded doc; keep the
  placeholder visible until the seed swaps in
- plumb streamOperation through the preview surfaces to drive the append gate
- add a peer-edit-preservation test (fails under whole-body reconcile) and refresh
  the undo-isolation + broadcast tests for the session API

* fix(files): destroy the agent shadow deterministically on settle

Cursor round 1 (Low): endAgentStream ran inside runOffRender, whose microtask is
dropped when a rapid follow-up stream bumps the run token — leaking the shadow
Y.Doc. Split it out into an unguarded microtask queued after the (droppable) final
apply, so the shadow is always destroyed.

* fix(files): agent stream frames skip the relay's durable persist

Cursor round 1 (High): client-applied stream frames broadcast over the sync
channel, so the relay stamped a socket origin and ran schedulePersist — durably
writing partial agent content mid-stream, attributed to the watching user (the old
server-merge applied with no origin and never did). Restore that behavior:

- new FILE_DOC_MESSAGE_TYPE.SYNC_NO_PERSIST wire tag; the provider tags
  AGENT_STREAM_ORIGIN updates with it (normal user edits stay SYNC)
- the relay applies it under an AgentSyncOrigin (carries the socket id for
  broadcast exclusion, but is not a plain string) so originSocketId() is null →
  no edited/schedulePersist/lastEditorUserId; excludeSocketId() still excludes the
  sender, and the update still publishes to the stream so peers converge
- the copilot's final edit_content write remains the authoritative durable persist
- tests: relay applies+fans-out but never persists a SYNC_NO_PERSIST frame
  (verified it fails if applied as a socket edit); provider tags agent edits

* fix(files): open the stream shadow at start + private extend baseline

Cursor round 2:
- High (settle skips apply without session): the stream shadow is now opened on
  the first ready frame, BEFORE the extend gate — so an `update` rewrite (whose
  every frame is gated out until settle) and a stream that finishes before seed
  still get a session, and settle applies the final body via the reused-or-on-demand
  shadow instead of leaving the doc stale until the durable reconcile.
- Medium (peer edits stall the stream): the extend gate now reads a private
  `lastStreamedBodyRef` (the agent's own last frame), snapshotted at stream start,
  not `lastSyncedBodyRef` which `onUpdate` clobbers on peer edits — so a collaborator
  typing can't make the growing snapshot stop prefixing the shown body and freeze it.
- Medium (multi-replica over-persist): pre-existing, documented "safe over-persist"
  (a peer task tails the frame as REDIS_ORIGIN and marks edited) — refreshed the
  stale comment to describe the SYNC_NO_PERSIST source; copilot's edit_content write
  remains the authoritative durable persist.

* fix(files): fail-close base-less previews + operation-based stream hold

Cursor/Greptile round 3 (High + Medium) — remove the fragile string-prefix
"extend gate", which was the root of both findings:

- Server: `buildFilePreviewText` now fails closed for an `append` whose base
  content hasn't loaded (returns undefined, like patch/update), so a base-less
  fragment never reaches the client. This eliminates the base-less wipe at
  settle (Greptile P1) at the source; an empty file (existingContent === '')
  still previews normally.
- Client: the collab streaming tick no longer string-prefixes the raw preview
  against the editor's canonical markdown (the '*' vs '-' / emphasis mismatch
  that froze every append frame — Cursor). The mid-stream hold is now purely
  operation-based: `update` waits for settle; append/patch/create apply each
  frame via the (peer-safe) shadow reconcile. lastStreamedBodyRef is now a plain
  dedup guard, not a prefix baseline.

Keeps the shadow, durable write, and SYNC_NO_PERSIST unchanged.

* fix(files): elect a single agent-stream writer across tabs

Cursor round 4 (High): with the stream applied client-side, two tabs/windows on
the same chat could each derive streamingContent (the reconnect/resume path
re-consumes preview events) and each independently insert the stream under a
different Yjs clientID, duplicating content until the durable reconcile.

Fix — single-writer election via the file-doc awareness (new agent-stream-leader):
- a client applying an agent stream announces `agentApplying` on its own awareness
- only the leader (min clientID among announcers) applies mid-stream AND at settle;
  a non-leader renders the leader's ops via Yjs and does not apply (a non-leader
  applying the final body would re-insert the whole doc as a duplicate)
- re-checked each frame, so it converges to one writer the moment awareness
  propagates; the sub-frame startup race is reconciled by the durable write
- single-client (the common case) is unaffected: it is the only announcer, so it
  always leads

* fix(files): gate the settle apply locally, not on a settle-time re-election

Cursor round 5 (High): the settle recomputed leadership from live awareness and
the leader cleared its announcement immediately, so a straggler peer that settled
afterward became the sole announcer, self-elected, and applied finalBody through
its base-seeded shadow — re-inserting the whole doc as a duplicate.

Fix: gate the settle apply on a LOCAL didApplyStreamRef (set only when this client
actually applied a mid-stream frame — i.e. it was the mid-stream leader whose
shadow is up to date), not on a settle-time re-election. A client that never
applied (non-leader, a held `update`, or a pre-seed stream) skips the final apply
and converges via Yjs + the durable write. The mid-stream leader election
(isAgentStreamLeader) is unchanged, so exactly one client's didApplyStreamRef is
ever true.

* fix(files): open the agent-stream shadow lazily on lead (no stale handoff)

Greptile round 6 (P1): the leader race — (a) a mid-stream leadership handoff
could apply from a stale pre-stream shadow, and (b) two tabs starting the same
stream before awareness converges could both lead briefly.

- (a) fixed: the shadow is now opened LAZILY in the tick, only when this client
  actually leads, seeded from the CURRENT doc — so a handoff successor diffs
  against the prior leader's ops (never a stale base) and a non-leader builds no
  shadow at all. Announce candidacy via a dedicated ref (decoupled from the
  shadow); settle still gates the final apply on didApplyStreamRef (leader-only).
- (b) the pure startup race is inherent to eventually-consistent election. It is
  now the only residual: bounded to two tabs starting the SAME stream within the
  awareness-propagation window, transient (converges in a frame or two), and
  never persisted (SYNC_NO_PERSIST + the durable edit_content reconcile). Resumes
  are sequential, so the common multi-tab case elects cleanly. Documented inline;
  a server-granted lease would close it fully but at a round-trip cost on the
  common single-tab path, which isn't worth it.

* fix(files): idempotent settle apply (update lands client-side; no straggler dup)

Cursor round 6 (Medium): a lone client's `update` never applied client-side —
held mid-stream, then skipped by the didApplyStreamRef settle gate — so the
rewrite depended entirely on the durable merge (stale if delayed/failed).

Root cause was over-correcting round 5. Now that the shadow is opened lazily in
the tick (current-seeded), the round-5 base-shadow duplication is already gone,
so didApplyStreamRef is unnecessary. Replaced it: settle applies the final body
via `agentStreamSessionRef.current ?? beginAgentStream(editor)` — the leader
reuses its up-to-date shadow (last throttled frame), while a client that never
applied (non-leader, held `update`, pre-seed) opens a FRESH current-seeded shadow.
Reconciling current->final is idempotent: a straggler that settles after another
wrote the final reconciles to a noop. So a lone `update` applies at settle (no
wait on the merge), and there's still no settle-time election or base-shadow dup.

* fix(files): broadcast agent frames to the whole room (same-socket siblings)

Cursor round 7 (Medium): SYNC_NO_PERSIST frames applied under an origin carrying
the sender socket id, and excludeSocketId dropped that whole socket from the
relay fan-out. A second FileDocProvider on the same socket (chat preview + Files
editor) then missed all mid-stream ops and stayed stale until the durable
reconcile — a regression from the old no-origin server merge, which reached both.

Fix: the agent origin is now a plain AGENT_SYNC_ORIGIN symbol, and agent frames
broadcast to the WHOLE room (no socket excluded), matching the old behavior — so a
same-socket sibling provider stays live; the emitting provider no-ops on its own
echo (the ops are already applied locally). originSocketId still returns null for
the symbol, so it keeps skipping edited/schedulePersist. Removed excludeSocketId
and the socket-carrying origin object. Updated the relay test to assert the
whole-room broadcast (verified it fails if the sender is excluded).

* fix(files): tag agent stream frames no-persist across replicas

A peer task tailing an agent-streamed preview frame previously applied it
as REDIS_ORIGIN, marking the seeded room edited and making a transient
startup-race duplicate eligible for that task's last-disconnect flush. Mark
agent frames with a stream field so peers apply them as REDIS_AGENT_ORIGIN,
excluded from the edited/persist gate. The copilot's durable edit_content
write stays the sole authority over file bytes.

* fix(files): reseed agent shadow on lead regain + agent-only compaction

Two multi-writer edge cases surfaced in review:

- rich-markdown-editor: a client that led, lost leadership, then regained it
  reused its stale shadow (which never saw the interim leader's ops), re-emitting
  ops for content already present. Tear the shadow down when a client observes it
  is not the leader, so a regain rebuilds fresh from the current doc.

- file-doc-store: compaction always stamped its snapshot REDIS_SNAPSHOT_ORIGIN
  (marks peers edited). A long agent-only stream crossing the threshold could
  fold preview content into a persist-eligible snapshot. Track whether a room
  integrated any real edit and stamp an agent-only snapshot REDIS_AGENT_ORIGIN
  so it stays no-persist.

Both covered by falsification-verified tests.

* fix(files): close realEdited data-loss race + elect a settle writer

Independent audit surfaced two real gaps:

- file-doc-store: realEdited was latched AFTER appendUpdate's awaits, but the
  edit already sits in room.doc synchronously. A concurrent agent-frame
  compaction could read realEdited=false, snapshot that real content, and stamp
  it a no-persist agent frame — a lost edit. Latch it synchronously (same tick
  as the doc mutation) before any await. Deterministic falsifiable test added.

- rich-markdown-editor: at settle every tab applied the final body, and a
  non-leader's local microtask runs before the leader's final propagates, so
  both insert the tail (Yjs keeps both) -> duplicated tail. Elect a single
  settle writer (reliable — awareness is long converged by settle), reading
  leadership before clearing the announcement. Corrects the overclaiming
  idempotency comment and the handoff pick-up comment.

Adds a y-tiptap internals upgrade-guardrail test.

* fix(files): own presence per client id, not one-per-socket

The shared workspace socket hosts one collaborative provider per mounted view,
so the chat file preview and the standalone Files editor for the same file each
bind their own Yjs client id over ONE socket. The relay owned a single client id
per socket, so the later JOIN overwrote the earlier and dropped its awareness —
which silently broke the single-writer agent-stream election (a peer stopped
seeing the streaming provider's announcement and could self-elect, duplicating
streamed text for the whole stream).

Track ownership per (socket, client id): a socket owns a set of client ids; the
awareness gate accepts a frame only if every id it carries is owned; cleanup
drops all of a socket's ids; the roster stays one-entry-per-session. Reclaim and
the same-user reconnect path evict just the reclaimed id, dropping the old socket
only if it empties. Falsification-verified test added.

* fix(files): make streamed file-preview accumulation replay-safe

Guard deriveFilePreviewSession against re-delivered/replayed content events:
apply a delta/snapshot only when previewVersion strictly advances, so a client
re-render or stream replay can't double-append the tail (the duplicated-content
bug) or regress on an older snapshot.

* fix(files): fix new-file collab streaming latch and agent-edit duplication

- Latch collab readiness so a new file's post-seed `synced` flap can no longer
  re-gate agent streaming (the stream previously showed only the seed and the
  rest appeared only on reload)
- Relay defers the durable edit_content merge to an actively-streaming client:
  the client shadow stream and the server merge were both writing the same
  content into the live doc, duplicating it when the server ran ahead
- Render the collaborator caret bar out of flow so a peer caret never nudges
  the surrounding text by ~1px
- Remove dead code: unused FileDocMessageType alias, unnecessary
  LiveFileDocMergeOrder export

Covered by tests: readiness latch (flap/offline/latch cases), relay merge
deferral (single- and multi-replica), plus verified-failing guards.

* test(copilot): fix loadWorkspaceFileTextForPreview mock to return { text } not a bare string

The adapter reads previewBase.text to seed an append/patch base; the mock returned
a bare '' so previewBase.text was undefined, making a base-less append fail closed
(no file_preview_content). My PR's fail-close change exposed the wrong-shaped mock.

---------

Co-authored-by: mzxchandra <129460234+mzxchandra@users.noreply.github.com>
2026-07-31 18:48:12 -07:00
Vikhyath MondretiandClaude Fable 5 f43b52c569 fix(realtime): evict revoked collaborators from live workflow rooms (#5917)
* fix(realtime): evict revoked collaborators from live workflow rooms via periodic read-access re-validation

* fix

* fix(realtime): close join/eviction race and make sweep cleanups independent

Re-authorize immediately before socket.join so an in-flight join cannot
reverse a sweep eviction, and run the sweep's best-effort cleanups
independently so a room-state failure cannot skip the presence broadcast.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(realtime): single-flight role resolution and retry failed eviction cleanup

Coalesce concurrent role resolutions per (user, workflow) so a slow stale
read can never overwrite a recorded revocation, and defer failed eviction
room-state cleanups into a per-sweep retry queue so collaborators are not
left with a stale presence entry.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(realtime): scope room removal to the target workflow and detect swallowed cleanup failures

Honor the workflowIdHint as the target room in both room managers so
removing a stale room cannot clobber the mapping of a room the socket has
since moved to, and confirm eviction cleanup via the returned workflowId
plus an unswallowed mapping read so Redis failures actually defer into the
retry queue.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(realtime): treat unconfirmed removals as failures and refresh role cache on fresh verify

Treat any null removal result as a failed cleanup (the sweep always passes
the target room, so null only means failure — including with expired
mapping keys), move the same-room rejoin guard to a synchronous check
immediately before the removal, and record verifyWorkflowAccess's fresh
decision into the role cache so a re-granted user is not blocked by a
stale cached revocation.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(realtime): prefer a mid-flight recorded role decision over the in-flight query result

If a fresh authoritative read (join-time verify) records a decision while
a single-flighted resolution's query is in flight, keep the recorded
decision instead of overwriting it with the potentially stale result.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(realtime): isolate the security scan from the Redis cleanup lane

Run the revocation scan (local sockets + DB only) and the best-effort
room-state cleanup as independently-guarded lanes so a hanging Redis
command can stall only presence cleanup, never revocation enforcement.
Evictions now enqueue cleanup instead of awaiting it, and the scan no
longer reads presence for a fallback role.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(realtime): bound authorization waits in the revocation scan

Race each socket's authorization check against a per-socket timeout and
cap the whole pass with a budget below the sweep interval, so a hanging
DB query skips that socket for the pass (never evicting on uncertainty)
instead of wedging the scan lane and starving subsequent ticks.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(realtime): round-robin the revocation scan so hung checks cannot starve later sockets

Resume each scan pass after the last target the previous pass processed,
so a fixed prefix of hanging authorization checks can never repeatedly
consume the pass budget and leave sockets behind it unexamined.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-24 16:45:40 -07:00
Waleed b117758eaa fix(agent): scope nested tool canonical-mode overrides by instance, not type (#5534)
Two tool entries of the same type inside an Agent block's tool-input array
(e.g. two Table tools) shared a single canonical-mode override keyed by
${toolType}:${canonicalId}, so switching basic/advanced mode on one field
silently switched it on every other instance of the same tool type -
including at execution time, where the wrong basic/advanced value could be
resolved for the second tool.

Rescope the override key to the tool's position in its tool-input array
(${toolIndex}:${canonicalId}) instead of its type, and thread that index
through every consumer: the editor (read + write), execution
(agent-handler/providers), search-index, and fork/promote remapping.
2026-07-09 11:21:05 -07:00
Waleed d078c84ee6 chore(typescript): upgrade to TypeScript 7 (native Go compiler) (#5521)
* chore(typescript): upgrade to TypeScript 7 (native Go compiler)

Bumps typescript to ^7.0.2 across every workspace package. Full
bun run type-check/lint/build/test all pass; apps/sim's type-check
(the one needing an 8GB heap bump) drops from ~55s to ~7s wall time.

Migration fixes required by TS7's stricter defaults:
- baseUrl removed: drop it from 5 tsconfigs (paths already resolved
  relative to tsconfig dir, so behavior is unchanged) and prefix the
  one bare (non-relative) paths entry each in apps/sim and
  apps/realtime with './'
- moduleResolution=node10 removed: switch packages/cli and
  packages/ts-sdk to "bundler", matching the rest of the monorepo
- types now defaults to [] instead of auto-including every @types/*
  package: add "types": ["node"] to the shared base tsconfig (this
  is fundamentally a Node monorepo, so this restores prior behavior
  in one place instead of duplicating it per-package), add explicit
  @types/node deps to packages that now rely on it transitively via
  @sim/db/@sim/logger, and add "declare module '*.css'" to the two
  packages with plain (non-module) CSS side-effect imports that
  TS7's stricter checker now flags
- packages/logger's isomorphic `typeof window` check no longer needs
  DOM lib in every consumer: replaced with `'window' in globalThis`
- packages/testing and apps/realtime's fetch/DOM mocks need DOM lib
  where they're compiled, since they model the browser Fetch API
- the `typescript` npm package no longer exports the classic
  Compiler API from its main entry (moved to unstable/ast subpaths);
  apps/sim's Function-block route used it at runtime to strip
  import statements from user code, so that one call site now uses
  Microsoft's official transition package, @typescript/typescript6
- Next.js 16.2.6's own TypeScript-detection heuristic hardcodes a
  path TS7 no longer ships, and its auto-install fallback assumes
  npm/pnpm; added @typescript/native-preview as a devDependency to
  apps/sim and apps/docs so Next detects a valid native compiler
  instead of trying (and failing) to auto-install one

Not merging yet: TS 7.0.2 published today and is still inside this
repo's bunfig.toml minimumReleaseAge (7-day) supply-chain gate, so
`bun install` will fail for everyone until 2026-07-15. Opening this
now to get it through review; hold the actual merge until then.

* fix(typescript): address Greptile review findings on TS7 upgrade

- packages/logger: 'window' in globalThis treats a shim that leaves
  globalThis.window explicitly undefined as browser-only, silently
  dropping production server logs. Restore the original
  typeof !== 'undefined' semantics via an inline cast instead, so it
  stays correct without requiring DOM lib in every consumer.
- packages/ts-sdk, packages/cli: both are tsc-built, published as
  Node ESM (package.json "type": "module" with an "exports" map).
  "moduleResolution": "bundler" is too permissive for that target -
  it accepts import patterns (e.g. extensionless relative imports)
  that Node's actual ESM resolver rejects at runtime. Switch both to
  "module"/"moduleResolution": "nodenext", the correct pairing for a
  published Node ESM package. Verified real tsc builds (not just
  --noEmit) still succeed for both.

* chore(bunfig): temporarily disable minimumReleaseAge gate for TS7 install

TS 7.0.2 published today, still inside the 7-day gate. Lowering to 0
to unblock this merge; will restore to 604800 in an immediate follow-up
commit right after merging.
2026-07-08 16:41:23 -07:00
Waleed e748a64ff4 refactor(realtime): type the socket event-handler boundary with @sim/realtime-protocol (#5208)
* refactor(realtime): type the socket event-handler boundary with @sim/realtime-protocol

Replace the (data: any) event-handler types in socket-provider.tsx with
precise broadcast types that mirror the exact payloads emitted by the
realtime Socket.IO server (apps/realtime/src/handlers/** and rooms/**).

Add @sim/realtime-protocol/events with the canonical wire types for the
broadcast/confirmation events the server emits: WorkflowOperationBroadcast,
SubblockUpdateBroadcast, VariableUpdateBroadcast, CursorUpdateBroadcast,
SelectionUpdateBroadcast, the four workflow-lifecycle broadcasts, and
OperationConfirmed/Failed. Typing change only; zero runtime/logic changes.
Store-internal any (rehydrate state, subblock map, emit payloads) is left
untouched as out of scope.

* fix(realtime): type cursor-update broadcast cursor as nullable

The client emits 'cursor-update' with { cursor: null } when a remote user's
cursor leaves the canvas, and the server re-broadcasts it verbatim, so receivers
genuinely get cursor: null. Type CursorUpdateBroadcast.cursor as
CursorPosition | null to match the wire. (selection stays non-null — it signals
absence via type: 'none', never null.)
2026-06-24 20:43:52 -07:00
Vikhyath Mondreti 6cb779601a feat(search-replace): search & replace, cut, deploy modal ui flicker (#4507)
* feat(search): workflow search and replace

* fix alignment

* fix hidden fields bug

* fix loops/parallel badge case

* resource resolver

* add cut

* update docs

* address comments

* make source code for func blocks dispay resolved code instead

* fix match issue

* fix padding
2026-05-07 20:34:53 -07:00
Vikhyath Mondreti b8959eb20d improvement(repo): zod based client-server boundary (#4355)
* improvement(repo): centralized zod contracts (#4336)

* improvement(repo): zod schema contracts

* type checks

* fix(notion): correctly register tool (#4337)

* fix func blokc

* more improvements

* fix tests

* type check

* remove v3 refs

* minor type improvements

* address comments

* update jira contract

* remove validateJsonBody

* improvement(repo): consolidation of boundary helpers + better unknown usage (#4352)

* improvement(repo): consolidation of boundary helpers + better unknown usage

* address comments

* improve file transfer error messaging

* fix docs listing schema drift

* fix inocrrect type casting

* address council comments

* remove prefix
2026-04-30 12:16:28 -07:00
5f0f0edd63 improvement(repo): separate realtime into separate app (#4262)
* improvement(repo): restructuring to make realtime image narrower scoped

* improvements

* chore(repo): rebase fixes and quality improvements for realtime split

Addresses merge-time issues and gaps from the realtime app split:
- Retarget stale vi.mock paths to @sim/workflow-persistence/subblocks
- Restore README branding, fix AGENTS.md script reference
- Restore TSDoc on workflow-persistence subblocks helpers
- Use toError() from @sim/utils/errors in save.ts
- Add vitest config + local mocks so @sim/audit tests run standalone
- Move socket.io-client to devDependencies in apps/realtime
- Add missing package COPY steps to docker/app.Dockerfile
- Add check:boundaries/check:realtime-prune scripts and wire into CI

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* refactor(security): consolidate crypto primitives into @sim/security

Move general-purpose crypto primitives out of apps/sim into the
@sim/security package so both apps/sim and apps/realtime can share them.

@sim/security exports (all pure, dependency-free):
  ./compare    safeCompare (constant-time HMAC-wrapped equality)
  ./encryption encrypt/decrypt (AES-256-GCM, iv:cipher:tag format)
  ./hash       sha256Hex
  ./tokens     generateSecureToken (base64url)

Migrate apps/sim call sites to use these + @sim/utils helpers:
  crypto.randomUUID()            -> generateId() from @sim/utils/id
  createHash('sha256').digest    -> sha256Hex
  timingSafeEqual on hashed hex  -> safeCompare
  new Promise(setTimeout)        -> sleep from @sim/utils/helpers

No behavior change: encryption format, digest output, and token
length are preserved exactly.

* refactor(copilot): use toError in remaining otel/finalize sites

Replace the last two `error instanceof Error ? error : new Error(String(error))`
patterns with toError from @sim/utils/errors. Completes the sweep of clean
candidates — no behavior change.

* refactor(security): consolidate HMAC-SHA256 primitives into @sim/security

Adds hmacSha256Hex and hmacSha256Base64 to @sim/security/hmac and migrates
15 webhook providers plus 5 other hot paths (deployment token signing,
outbound webhook requests, workspace notification delivery, notification
test route, Shopify OAuth callback) off bare `createHmac` calls. Secret
parameter accepts `string | Buffer` to cover base64-decoded Svix-style
secrets (Resend) and MS Teams' HMAC scheme. AWS SigV4 signing in S3 and
Textract tools intentionally retains direct `createHmac` usage — its
multi-step key derivation chain doesn't fit a generic helper.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* chore(packages): post-audit test + packaging polish

- Add safeCompare unit tests (identity, length mismatch, hex-nibble diff).
- Add Buffer-secret cases to hmac tests to lock in Svix/MS-Teams contract.
- Declare `reactflow` as a peerDependency on @sim/workflow-types — only used for type imports.
- Add a barrel export to @sim/workflow-persistence for consumers that prefer package-level imports; subpath exports retained.
- Document the data-field invariant in load.ts for loop/parallel subflow patching.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* chore(realtime): address PR review feedback

- Remove redundant SOCKET_PORT=3002 env from Dockerfile runner stage
  (env.PORT already defaults to 3002 via zod schema).
- Reorder PORT fallback so an explicitly-set SOCKET_PORT wins over
  the schema default for PORT; keeps SOCKET_PORT functional as an
  override instead of dead code.
- Add dedicated type-check CI step for @sim/realtime so TS errors
  surface pre-deploy (the Dockerfile runs source TS via Bun and has
  no implicit build-time type check).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* chore(realtime): remove unused SOCKET_PORT env var

SOCKET_PORT has lived in the socket server since the June 2025 refactor
but was never actually set in any deploy config — docker-compose.prod,
helm values/templates, .env.example, and docs all use PORT or the 3002
default exclusively. No self-hoster was ever pointed at SOCKET_PORT, so
removing it is safe.

Simplifies realtime port resolution to `env.PORT` (zod-validated with a
3002 default) and drops the orphaned sim-side schema entry.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

---------

Co-authored-by: Waleed Latif <walif6@gmail.com>
Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
2026-04-22 23:06:16 -07:00