This PR:
- fixes
[UXE-233](https://linear.app/composio/issue/UXE-233/docs-should-explicitly-direct-agents-to-use-v31-apis)
- makes the agent-facing Markdown channels publish concrete REST v3.1
base URLs and endpoint tables while preserving the supported v3.0
reference tree
- centralizes `REST_VERSION_GUIDANCE`, `TOOL_VERSION_GUIDANCE`, and
raw-spec path matching in `lib/api-version-guidance.ts`
- renders `ApiBaseUrl` and `ApiEndpointsTable` in authored MDX and adds
an explicit version pointer to generated OpenAPI operation Markdown
- separates current and legacy REST references in `llms.txt`, excludes
v3.0 page bodies from `llms-full.txt`, and adds v3.1 selection guidance
to Context7
- validates serialized `ApiEndpointsTable` payloads with Zod before
generation while preserving forward-compatible fields
- addresses review feedback for the renamed authentication page,
SDK-reference pointer scope, generator validation behavior, and stale
OpenAPI tool-version descriptions
## Context
REST v3.0 is superseded but remains supported for existing integrations.
This PR changes what new agent-generated code discovers first; it does
not require existing v3.0 callers to migrate.
Authenticated read-only probes against the deployed API confirmed that
the affected v3 endpoints default to `00000000_00`, while their v3.1
counterparts default to `latest`. `POST /tools/scopes/required` is
available only on v3.1 and defaults to `latest`.
This PR does not move public URLs. A future `/reference/v3/` to
`/reference/v3.0/` migration remains separate because it has independent
compatibility and search-indexing risk.
## Verification
- `bun test tests/static/`
- `bun run build`
- `bun run test:integration`
- `bun run types:check`
- `bun run lint`
## Review follow-up
The version-default guidance is intentionally limited to the five
verified tool endpoints. v3.1 is a structural superset of v3, so this PR
does not claim route parity. Static coverage rejects broad non-tool
parity wording in both the shared guidance and Context7 rules.
Migration to Fumadocs is complete. Remove the fern/ directory and all
related configuration: deprecated CI workflows, gitignore rules,
CODEOWNERS entry, and references in CLAUDE.md, README.md, context7.json,
and pyproject.toml.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Alberto Schiabel