This PR:
- reverts https://github.com/ComposioHQ/composio/pull/3780
- restores the TypeScript `composio.create()` and `composio.use()`
session aliases, with their runtime and type-test coverage
- restores the prior deprecation state for
`BaseProvider.wrapMcpServerResponse`
- removes the pre-v1 breaking-change changeset so the release PR no
longer advertises this removal
The v1 API-freeze change should be recreated later as a draft PR and
kept out of the merge queue until v1 is ready.
## What and why
This makes the intended v1 API cleanup real rather than postponing it to
v2:
- Remove the TypeScript root aliases `composio.create(...)` and
`composio.use(...)`. Session creation and reuse now live only at
`composio.sessions.create(...)` and `composio.sessions.use(...)`. This
is a deliberate breaking change, reflected by a major changeset.
- Retain `BaseProvider.wrapMcpServerResponse` as the stable v1 provider
SPI. Its earlier deprecation pointed to a method that was never
introduced.
The scope is intentionally narrow: it does **not** remove unrelated
deprecated APIs, and Python keeps its supported `Composio.create/use`
API. The TypeScript docs, examples, providers, runtime fixtures,
generated SDK reference, and API-reference indexes now use the
namespaced TypeScript API. Historical changelog examples are left as
history.
## Verification
- `pnpm typecheck`
- `pnpm --filter @composio/core test -- --run test/core/session.test.ts`
(42 files, 1,018 tests)
- `pnpm exec eslint ts/packages/core/src/composio.ts`
- `pnpm --filter @composio/core generate:docs`
- `cd docs && bun run generate:api-index`
- `cd docs && bun run types:check`
- `git diff --check` and targeted scans for removed TypeScript aliases
I also attempted the affected Node and Cloudflare runtime E2E suites.
They cannot initialize in this checkout without `COMPOSIO_API_KEY` (and,
for Cloudflare, `COMPOSIO_BASE_URL` and `OPENAI_API_KEY`); they did not
report a product assertion failure.
## Summary
Rewrites the stale root `README.md` against the current docs (structure
modeled on [earendil-works/pi](https://github.com/earendil-works/pi)'s
README).
- **Quickstarts** now use the session-based API (`composio.create()` →
`session.tools()`) that the docs treat as canonical, replacing the
legacy `composio.tools.get()` flow
- **Positioning** matches the docs welcome page: 1000+ pre-authenticated
toolkits, per-user sessions, auth, triggers, and a sandbox
- **New sections**: CLI install (curl / Homebrew / npm),
sessions-via-MCP note, repository layout, minimum runtime versions
- **Provider table** merged with package links; adds the Claude Agent
SDK providers (both SDKs) and the experimental Pi provider
(`@composio/experimental`); documents the Python
`composio-gemini`/`composio-google`/`composio-google-adk` split
- **Removed**: Rube section (no longer in docs), cover banner (replaced
with theme-adaptive brand logomark from brand.composio.dev),
master-branch pointer, internal OpenAPI-pull section, private
`@composio/ts-builders` listing
Docs-only change — no changeset needed.
## Preview
Rendered view: [README.md on this
branch](https://github.com/ComposioHQ/composio/blob/docs/refresh-root-readme/README.md)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
---------
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
This PR is **part 2 of 3** splitting
https://github.com/ComposioHQ/composio/pull/3505 to make the removal of
the old 2025 custom tools easier to review. It carries the
**TypeScript** slice.
- builds on top of https://github.com/ComposioHQ/composio/pull/3508
(stacked — review/merge the Python slice first; this PR's base is
`remove-py-custom-tools`)
- removes the legacy `composio.tools.createCustomTool(...)` in-memory
registry: the plural `CustomTools` model, registry wiring, legacy-only
tests/examples/`ts/docs` pages, and stale error/type exports
- preserves the 2026 tool-router APIs: `experimental_createTool`,
`experimental_createToolkit`, `ToolRouter`, `ToolRouterSession`, and
inline custom-tool execution
- regenerates the TypeScript SDK reference so raw tool listing no longer
describes the removed local registry and points to session-scoped custom
tools
- adds a `@composio/core` minor changeset
## Notes
- The committed SDK reference is **verified self-consistent**: `pnpm
--filter @composio/core generate:docs` reproduces it with zero diff.
- This slice is a byte-identical subset of #3505 — the three split
branches recombine to that PR's exact tree. See #3505 for the original
verification logs (`typecheck`, `test`, `lint`, `cf-workers` e2e); CI
re-runs per PR.
Alberto Schiabel