* feat(jupyter): add Jupyter integration (contents, kernels, sessions) - 16 tools covering Contents, Kernels, Kernelspecs, and Sessions REST APIs - File upload/download via UserFile, following the Box upload pattern - Block with operation dropdown, token auth, and 8 catalog templates - Registered tools + block, generated docs, bumped API validation baseline * fix(jupyter): address Greptile review — SSRF guard, upload path ambiguity, silent notebook fallback - Route uploads through validateUrlWithDNS + secureFetchWithPinnedIP (matches Grafana/1Password pattern) instead of a raw fetch to the user-supplied server URL - Replace the upload path/trailing-slash heuristic with an unambiguous directory + filename split - create_file no longer silently writes an empty notebook when notebook content is malformed JSON — it now errors clearly * fix(jupyter): request content=1 when listing directory contents Without it, Jupyter Server returns directory metadata with content: null, so jupyter_list_contents always reported an empty items array. * fix(jupyter): reject path-traversal segments in Jupyter content paths encodeJupyterPath now rejects '.'/'..' segments across the whole path (shared by all 16 tools, not just upload); the upload route returns a clean 400 when it's hit. * fix(jupyter): close remaining path-traversal and redirect-credential gaps - extract the traversal check out of encodeJupyterPath into a shared assertion, and apply it to body-only path fields (rename newPath, copy copyFromPath, session path) that never flowed through URL encoding and so skipped the check - pass stripAuthOnRedirect to the upload route's secureFetchWithPinnedIP call so a malicious Jupyter server can't redirect the PUT to another origin and receive the caller's token * fix(jupyter): also reject percent-encoded traversal segments A segment like %2e%2e wouldn't match the literal '..' check. Now decodes each segment before comparing, in addition to the literal check, so an already-encoded traversal attempt is caught too. * fix(jupyter): route all 15 remaining tools through an internal proxy for HTTP/private-host support and no redirects The generic external tool executor blocks plain-HTTP and non-localhost private-IP hosts by default, so every non-upload Jupyter operation could fail against typical self-hosted setups (LAN IP, docker hostname, or even literal localhost on a hosted deployment) even though the upload route worked via its own internal route. Added /api/tools/jupyter/proxy (DNS-pinned, allowHttp, maxRedirects: 0) that mirrors the upstream Jupyter response verbatim, matching the established pattern for self-hosted-arbitrary-host integrations (Grafana, 1Password) instead of the generic executor path. Each tool's request block now posts to the proxy instead of building a direct external URL; transformResponse and outputs are unchanged since the proxy response mirrors upstream status/body exactly. Also switches the upload route from stripAuthOnRedirect to maxRedirects: 0 — stronger, since it stops the uploaded file body (not just the token) from ever reaching a redirect target. * fix(jupyter): validate proxy path at the trust boundary, reject path separators in upload filename - The proxy route now independently validates the incoming path field for traversal segments instead of only relying on tool-side validation before the request reaches it — the route is a shared internal boundary, not something only our own tool code can call - The upload route's fileName can come from an advanced override or the legacy fileContent path and could itself contain '/' or '\', silently nesting the upload deeper than the directory param specified. Now rejected outright before joining. * fix(jupyter): decode the whole path before splitting, not per-already-split segment A segment like foo%2f..%2fsecret has no literal slash, so splitting on literal '/' first and decoding each piece in isolation treats it as one opaque segment and never notices the '..' hiding behind the encoded slash. Decode the full path once, then split and check every segment the target server's own single URL-decode pass would see.
Integration documentation generator
generate-docs.ts compiles the per-service integration pages under
apps/docs/content/docs/en/integrations/ from the block/tool/trigger registry in
apps/sim. The ontology it encodes: everything is a block, and an integration is one
block that has Actions and, optionally, a Trigger.
Golden rule: the generated
.mdxfiles are derived artifacts, not the source of truth. Do not hand-edit them — your changes are overwritten on the next run. The only editable region is theMANUAL-CONTENTblock (see below). To change what a page says, edit the TypeScript inapps/simand regenerate.
Where an integration lives canonically
For a service like Gmail, three TS sources define it:
| Source | What it is | What it feeds in the page |
|---|---|---|
apps/sim/blocks/blocks/<service>.ts |
The block: type, name, category (tools for integrations), bgColor, config sub-blocks, tools.access (which actions it exposes), an optional triggers capability, outputs |
Header / BlockInfoCard, Usage Instructions, and which actions + trigger appear |
apps/sim/tools/<service>/*.ts |
Each action's params + outputs | Every ### <action> → #### Input / #### Output under ## Actions |
apps/sim/triggers/<provider>/ |
The trigger's config fields + outputs | The ## Triggers section |
apps/sim/components/icons.tsx |
The brand glyph | The page icon |
The block references actions by id in tools.access; the generator looks each one up in
apps/sim/tools/.
What the generator does
Run with cd apps/sim && bun run generate-docs (or bun run scripts/generate-docs.ts
from the repo root). One pass (generateAllBlockDocs):
- Copies icons
apps/sim/components/icons.tsx→apps/docs/components/icons.tsxand buildsapps/docs/components/ui/icon-mapping.ts. - Block pass — for each integration block (
category: 'tools', plus thememory/knowledge/tableexceptions), writesintegrations/<service>.mdx:BlockInfoCard+ Usage Instructions +## Actions. - Trigger pass (
generateAllTriggerDocs) — readsapps/sim/triggers/<provider>/and appends a## Triggerssection to that service's page, or writes a standalone page for trigger-only services. - Writes
integrations/meta.jsonand regenerates the landing page'sintegrations.json.
Hand-written pages it never touches
Core block pages (blocks/*), the native trigger pages (triggers/{start,schedule,webhook,rss,table}),
the integrations overview (integrations/index.mdx), and the service-account pages are
fully hand-written. The generator skips them via HANDWRITTEN_INTEGRATION_DOCS,
HANDWRITTEN_TRIGGER_DOCS, and SKIP_TRIGGER_PROVIDERS. Add a page name to those sets if
you hand-author a page the generator would otherwise produce.
Manual content (the one editable region)
Each generated page may carry hand-written prose inside marker comments. The generator preserves anything between the markers and overwrites everything else, so this survives every regeneration:
{/* MANUAL-CONTENT-START:intro */}
[AgentMail](https://agentmail.to/) is an API-first email platform…
{/* MANUAL-CONTENT-END */}
Supported section names: intro (after the BlockInfoCard — the most common),
usage, configuration, outputs, notes. The merge is by marker name
(extractManualContent + mergeWithManualContent), so a section is re-inserted at the
matching spot in the freshly generated structure.
If you move the output folder, reseed manual content from the old location first — the generator only preserves markers it finds in the existing output file, so a fresh folder starts with none.
Practical: to change…
- An action's params/outputs, a trigger, or to add a service → edit
apps/sim/{blocks,tools,triggers}and re-run the generator. - A page's prose intro → edit its
MANUAL-CONTENT:introblock directly; it survives regen. - The overview / service-account / core-block / native-trigger pages → hand-edit freely.
Gotchas
- Never hand-edit
apps/docs/components/icons.tsx— step 1 overwrites it from the sim app. Components that need an icon the sim app lacks should define it locally or uselucide-react(seecomponents/workflow-preview/block-icons.tsx). - The generator is the source of truth for
integrations/and itsmeta.json; manual edits there are transient.
CI
The generator runs in CI on pushes to the main branch and commits the regenerated docs
back. Keep block/tool/trigger metadata accurate in apps/sim and the docs follow.