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Justin BlumencranzandClaude Fable 5
9277e7d2d2
* fix(chat): stop losing sends aborted during mount-settling
* fix(chat): detect aborts by signal state, not error identity
fetch rejects with the RAW abort reason when its signal carries one —
abort('unmount:client_cleanup') surfaces as a plain string, so every
err.name === 'AbortError' check missed it and the restore path never ran
(verified live). The test stub now rejects with the raw reason like real
fetch, which turns this gap red.
* fix(chat): hand an aborted chatless send to the next mount
The mount-settling cycle is a full remount — the pending chat key is
regenerated per instance, so restoring the aborted send into the dead
instance's queue orphaned it (verified live). A chatless send now
re-persists as a one-shot MothershipHandoffStorage handoff the next
mount's consumer re-sends; chat-bound sends keep the queue restore.
* fix(chat): deliver an aborted chatless send to the live replacement surface
The settling remount's consumer checks handoff storage before the
restore microtask re-persists it, so the stored handoff sat unread until
a navigation. The replacement surface's send listener IS registered by
restore time — deliver the message directly through the claimable send
event, keeping the stored handoff as the no-surface fallback.
* refactor(chat): thread the recoverable-abort outcome through the send result
Replaces the restorableCleanupAbortRef reset choreography with a widened
startSendMessage return ('recoverable_cleanup_abort'), so the restore
decision is ordinary data flow and the second caller cannot leave a stale
flag behind.
* fix(chat): carry attachments through the cross-mount send handoff
The recoverable-abort delivery excluded attachment-bearing sends, so
they restored under the dead instance's pending key and were silently
lost. The claimable send event now carries fileAttachments end to end
(dispatcher, home listener, restore path); only the storage fallback —
whose shape cannot hold attachments — still queue-restores them.
* fix(panel): forward event attachments to the copilot send
* fix(chat): carry attachments through the stored handoff lane too
The unclaimed-event fallback excluded attachment sends and restored
them under the disposed mount's pending key. The persisted handoff now
carries fileAttachments (they are plain references to already-uploaded
files), the home consumer forwards them, and the recovery branch always
hands off — no stranded lane remains.
* feat(search): improve command palette results
* feat(search): sharpen command palette discovery
Unify command surfaces, flatten ranked results, and remove favorites so the palette stays focused on fast discovery. Add Tab result cycling and workspace identity icons for quicker keyboard navigation.
* feat(search): unify cmd+k into one page-aware section model
Every palette view now derives from a single rule: the page's action group,
its own entity section hoisted, Platform actions, then a fixed tail shared by
all pages. Adds page commands for table/file/KB details, logs, and deploy; a
Logs section with run dates; chat last-activity receipts; kebab-cased
secondary search text with per-entry scattered matching; exact-section-name
ranking lifts; and scroll/selection fixes on open, loop, and arrow
navigation. Removes the canvas block/tool/trigger/docs sections and the
store's unused section restriction and pending-connect plumbing.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* feat(search): ask-Sim tab mode, canvas sections, and palette refinements
Tab now flips the palette into ask mode — Enter lands on Chat with the query
seeded via the proven curated-prompt handoff (auto-send deferred on a
diagnosed use-chat mount-abort bug) — replacing the no-results New Chat
fallback. Restores the canvas Blocks/Triggers/Tools/Tool operations sections
between the workflow Actions group and Sim, keeps the integrations catalog
and connected accounts off the canvas, renames the global group to Sim and
page groups to Actions, puts an exactly-named page above its lifted contents,
adds chat last-activity receipts, and softens the list chrome (hidden
scrollbar, shorter fade, scroll-margin fixes for arrow and loop navigation).
Also renames the generic webhook block to Webhook.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* fix(search): order module results below Sim actions
* fix(review): make command palette fast and focused
* fix(search): restore Ask Sim prefill and refine palette ranking
* chore(sidebar): drop unused getSettingsHref destructure
* fix(deploy): gate every deploy invoker on full eligibility
* fix(search): port the palette to post-#6458 staging
Carries the former merge resolutions as one commit: the emcn icon set
(SelectAll fit-to-view, Search chrome), native browser-panel occlusion
gating, scheduled-tasks retirement, the chip-aware handoff consumer
superseding the ?handoff=1 machinery, and Knowledge bases pluralization.
* feat(search): auto-send Ask Sim queries via the chat handoff
* revert(search): return Ask Sim to prefill, storing raw prose
Auto-send still loses the message on cross-route navigation — use-chat's
cleanup abort fires during Home's mount-settling effect cycle. Prefill
restored, but via LandingPromptStorage directly so free-form queries are
never mentionified into @ chips.
* feat(search): auto-send Ask Sim queries via the chat handoff
Re-lands the auto-send flip: with fix/mship-mount-send-loss beneath this
branch, sends started during Home's mount-settling window survive the
cleanup abort (queued, restored, re-dispatched), so the handoff no longer
loses the query on cross-route navigation.
* fix(deploy): include registry loading in the deploy invoker gate
* improvement(search): label the ask row New Chat
* refactor(search): apply simplify-pass cleanups
- rank against a deferred query and hoist search-independent derivations
so typing never blocks on the cross-section re-rank
- cache secondary-text tokenization (hottest per-keystroke loop)
- skip building browse groups mid-search; gate the palette-only
credentials and logs queries on the palette being open
- flatten getGlobalSearchResults onto a spec-stable sort
- drop the dead store-side SEARCH_SECTIONS/docs path, the no-op
CommandSearch surface variant, a duplicate hex regex, a dead
font-base class, and the TaskItem/FolderedItem shape overlap
* fix(search): paint the palette fog with the dialog's own surface
The frost under the floating input reused the canvas card's --surface-2
gradient, which reads as a tinted band on the palette's --surface-4/
--surface-5 dialog (visible in dark mode). The CommandSearch surface
variant returns — this time with genuinely different values — and the
chrome test pins the host-matching fog.
* fix(search): the palette fog matches the inner --bg panel, not the dialog ring
* fix(search): review-round parity and consistency fixes
- table import command respects the in-progress upload gate
- Export CSV is offered to viewers (matching the header control)
- palette mode flips with the deferred query the ranking ran against
- a gated palette deploy reports the button tooltip's reason via toast
* fix(deploy): use the emcn toast input shape
* fix(search): rename logs view toggles to "Switch to Logs/Dashboard"
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
A workspace to build, deploy and manage AI agents and workflows.
Quickstart
Cloud-hosted: sim.ai
Self-hosted
git clone https://github.com/simstudioai/sim.git && cd sim
bun install
bun run setup
Capabilities
- Connect 1,000+ integrations and every major LLM
- Add Slack, Notion, HubSpot, Salesforce, databases, and more
- Build agents visually, conversationally, or with code
- Ingest files, knowledge bases, and structured table data
- Monitor runs, logs, schedules, and workflow activity
One workspace, every surface
Chat and workflows are just the start — tables, files, and knowledge all live in the same workspace.
Tables — a database, built in |
Files — one store for your team and every agent |
Knowledge — your agents' memory |
Self-hosting
bun run setup is an interactive wizard: it provisions the database, generates secrets, writes your .env files, connects a Chat API key, and starts Sim the way you choose:
- Local dev — run from source to contribute or hack on Sim
- Docker Compose — a self-contained instance for testing self-hosting
- Kubernetes (Helm) — deploy to a local cluster
When it finishes, open http://localhost:3000.
Reconfigure an optional capability without rerunning the full wizard:
bun run setup status
bun run setup email
bun run setup storage
bun run setup sandbox
bun run setup jobs
bun run setup cache
bun run setup knowledge
bun run setup llm
bun run setup integration slack
bun run setup status detects the effective local-dev, Docker Compose, or current-context
Helm configuration and reports configured, missing, or invalid capabilities and OAuth
integrations without printing credential values. This is separate from bun run sim status,
which reports whether installed services are running and healthy.
Manage your install with bun run sim:
bun run sim start | stop | restart # bring your install up / down / cycle
bun run sim update # pull/rebuild and apply Compose images
bun run sim status # what's installed and healthy
bun run sim logs # follow logs
bun run sim doctor # diagnose configuration problems
bun run sim down # remove containers (data kept)
bun run sim reset # archive .env and wipe managed data
sim detects how you're running (Docker Compose, local dev, or Kubernetes) and acts accordingly.
Prefer a bare sim? Run bun link once — but note sim lands in ~/.bun/bin, which Homebrew's bun doesn't add to your PATH, so you may need export PATH="$HOME/.bun/bin:$PATH" in your shell profile.
Sim also supports local models via Ollama and vLLM. See the self-hosting docs for details.
Chat API Keys
Chat is a Sim-managed service. bun run setup connects a Chat API key for you — sign in when it opens your browser and the key is stored automatically. To view, create, or revoke keys later, go to sim.ai/selfhost/settings/chat-keys.
Environment Variables
See the environment variables reference for the full list, or apps/sim/.env.example for defaults.
Tech Stack
Next.js · Bun · PostgreSQL · Drizzle · Better Auth · Tailwind — and the rest of the stack
- Framework: Next.js (App Router)
- Runtime: Bun
- Database: PostgreSQL with Drizzle ORM
- Authentication: Better Auth
- Schema Validation: Zod
- UI: Shadcn, Tailwind CSS
- Streaming Markdown: Streamdown
- State Management: Zustand, TanStack Query
- Flow Editor: ReactFlow
- Docs: Fumadocs
- Monorepo: Turborepo
- Realtime: Socket.io
- Background Jobs: Trigger.dev
- Remote Code Execution: E2B
- Isolated Code Execution: isolated-vm
Contributing
We welcome contributions! Please see our Contributing Guide for details.
License
This project is licensed under the Apache License 2.0 - see the LICENSE file for details.
