DB migration compat / Back-compat — Current branch migrations with ${{ needs.check-migrations-changed.outputs.base_branch }} branch code (push) Has been cancelled
DB migration compat / Forward-compat — Current branch code with ${{ needs.check-migrations-changed.outputs.base_branch }} branch migrations (push) Has been cancelled
## Summary
**Stacked on #1468** (`docs/hexclave-rename-plan` — the plan doc). Diff
vs that base = the actual PR 1 code.
This is **PR 1 of the Hexclave rebrand: the invisible compatibility
layer**. Everything is additive. Old SDKs, old wire identifiers, and old
env var names keep working unchanged. The backend dual-accepts and
dual-emits; new SDK code emits `x-hexclave-*` headers and the
`hexclave_` Bearer prefix; cookies dual-write; env vars dual-read across
every category. **No user-visible rebranding lands here** — that's PR 2.
See [`RENAME-TO-HEXCLAVE.md`](./RENAME-TO-HEXCLAVE.md) → *"PR 1
implementation guide"* for the full per-work-area spec, file pointers,
and chosen approach.
## What's implemented (all 14 PR-1 work-areas)
- **SDK export aliases** — `Hexclave*` aliases for the user-facing
`Stack*` exports added in `packages/template`; codegen propagates them
to `@stackframe/{js,stack,react,tanstack-start}`. React-only aliases
correctly excluded from `@stackframe/js`. (`e60550a2`)
- **JWT issuer dual-accept** — `decodeAccessToken` accepts both
`api.stack-auth.com` and `api.hexclave.com` issuers. Signing unchanged.
(`fc781def`)
- **Request-header dual-accept** — backend + dashboard proxies normalize
`x-hexclave-*` → `x-stack-*` at the existing empty proxy hook (so
`smart-request.tsx` and every route schema keep working unchanged); CORS
allowlists extended via a derive-once helper. (`2a056eac`)
- **MCP `ask_hexclave`** — registered alongside `ask_stack_auth` via a
shared helper; `ask_stack_auth` behavior byte-identical. (`30ffd604`)
- **Dev-tool** — DOM ids + header emit switched.
`window.HexclaveDevTool` exposed alongside `window.StackDevTool`.
(`32131ea7`)
- **The big consolidated commit** (`7fed864a`):
- **Env vars** — central `getEnvVariable` prefix-transform (HEXCLAVE
first, STACK fallback); dashboard + template client env files dual-read;
`turbo.json` globalEnv; `NEXT_PUBLIC_STACK_PORT_PREFIX` renamed outright
across ~82 files including docker.
- **Cookies** — dual-write/dual-read auth (`stack-access`/`-refresh-*`
and custom-domain variants), OAuth-state
(`stack-oauth-{inner,outer}-*`), and low-risk cookies (`stack-is-https`,
`stack-last-seen-changelog-version`). Bypass sites patched (backend
OAuth callback, dashboard remote-dev auth route, impersonation snippets,
snapshot serializer).
- **Bearer prefix** — SDK token parser accepts both `stackauth_` and
`hexclave_`; emits `hexclave_`. Discovery correction: this is purely
SDK-internal — the backend never parses it.
- **Response headers** — backend dual-emits
`x-hexclave-{request-id,actual-status,known-error}`; SDKs dual-read (new
first, stack fallback).
- **SDK request-header emit switch** —
`client/server/admin-interface.ts` + dashboard `api-headers.ts` +
`internal-project-headers.ts` + `feedback-form.tsx` switched to
`x-hexclave-*`. Plus `stack_response_mode` query param.
- **Storage keys** — dev-tool / cli-auth / oauth-button / docs keys
renamed (straight); `stack:session-replay:v1` dual-read so in-progress
recordings survive SDK upgrades; `stack_mfa_attempt_code` dual-read.
- **Query params** — cross-domain params dual-emit/dual-accept via
shared helpers; backend `oauth/authorize` accepts
`hexclave_response_mode` and `stack_response_mode`; `stack-init-id`
renamed.
- **`Symbol.for`** — app-internals symbol gets a parallel
`Symbol.for("Hexclave--app-internals")` getter on each attach site (no
read-site churn — old symbol still attached). 3 file-private symbols
renamed outright.
- **Config discovery** — prefer `hexclave.config.ts`, fall back to
`stack.config.ts` at every discovery site (CLI / dashboard / backend /
local-emulator); `init` writes the new filename; CLI credentials path
migrates.
- **Internal renames** — `StackAssertionError`,
`StackClient/Server/AdminInterface` renamed outright (no alias, per the
"internal-only → rename" rule). ~264 files touched.
- **Review-pass fixes** (`21217fbe`) — three real bugs found by parallel
review agents and fixed:
- `snapshot-serializer.ts` was interpolating the whole
`keyedCookieNamePrefixes` array (`${arr}`) — adding a second prefix
would have corrupted **every** OAuth-cookie snapshot, not just new ones.
- **Docker port-prefix producer/consumer mismatch** —
`entrypoint.sh`/`run-emulator.sh`/cloud-init `user-data` were still
producing `NEXT_PUBLIC_STACK_PORT_PREFIX` while the dashboard sentinel +
consumers had been renamed; silent self-host regression (custom port
prefix would be ignored).
- **Missing `hexclave-oauth-inner-*` dual-write** in the OAuth authorize
route — callback's fallback masked it but the dual-write was specified
by the plan.
- Plus: `mcp.test.ts` tool-list assertions updated to include
`ask_hexclave`; two dashboard header-emit sites switched to
`x-hexclave-*` for consistency.
- **E2E snapshot serializer follow-up** (`4b16cc5d`) —
`x-hexclave-request-id` added to the hidden-headers list (mirroring
`x-stack-request-id` treatment), and 2 sample inline snapshots
regenerated in `projects.test.ts` to include the new dual-emitted
headers.
## Verification
- **`pnpm typecheck`** — clean (the fresh-worktree `@/.source` / Prisma
codegen gap in `stack-docs` is pre-existing and unrelated).
- **`pnpm lint`** — 29/29 packages green.
- **`pnpm exec turbo run build --filter=./packages/*`** — 13/13 packages
build (including `@stackframe/stack-cli` once the dashboard standalone
is present).
- **Live E2E** against a running backend on `cl/hexclave-pr1`:
- `pnpm test run
apps/e2e/tests/backend/endpoints/api/v1/internal/mcp.test.ts` — **6/6
pass** (verifies the new `ask_hexclave` tool — the hand-written inline
snapshot matched actual MCP server output).
- `pnpm test run
apps/e2e/tests/backend/endpoints/api/v1/internal/projects.test.ts` —
**11/11 pass** (verifies wire dual-accept + dual-emit end-to-end; the
snapshot serializer fix was found and applied during this check).
A four-agent parallel **review pass** also audited the full diff for
logic/runtime bugs across the work-areas (wire headers + JWT, cookies +
bearer + symbols, env vars, query params + config + MCP + aliases). All
in-slice review verdicts were ✓ except the three bugs listed above,
which are now fixed.
## Known follow-ups (out of scope for this PR)
- **E2E snapshots across the rest of the suite** — backend now
dual-emits `x-hexclave-{known-error,actual-status}` alongside
`x-stack-*`, which legitimately appears in inline snapshots throughout
`apps/e2e`. Two were regenerated here as a sample; the rest should regen
with `vitest -u` in CI.
- **Docker shell env vars beyond `PORT_PREFIX`** — `entrypoint.sh` still
reads `STACK_*` env vars directly (the JS-side `getEnvVariable`
transform doesn't help the shell). JS consumers dual-read so it works in
practice; full shell-level dual-read is a deeper self-host follow-up.
- **`@stackframe/stack-cli` build ordering** — pre-existing; needs
`build:rde-standalone` first. Not affected by this PR.
## Test plan
- [ ] CI runs full e2e suite (with `vitest -u` to absorb dual-emit
snapshot deltas, then committed back)
- [ ] Spot-check: an old SDK build (emitting only `x-stack-*`) still
authenticates against the new backend
- [ ] Spot-check: a new SDK (emitting `x-hexclave-*` / `Bearer
hexclave_*`) still authenticates against an old backend during deploy
ordering
- [ ] Manual: `npx @stackframe/stack-cli@latest init` (new onboarding
entrypoint) generates `hexclave.config.ts`
- [ ] Manual: existing `stack.config.ts`-only project still resolves (no
migration required)
---------
Co-authored-by: bilal <bilal@stack-auth.com>
DB migration compat / Back-compat — Current branch migrations with ${{ needs.check-migrations-changed.outputs.base_branch }} branch code (push) Has been cancelled
DB migration compat / Forward-compat — Current branch code with ${{ needs.check-migrations-changed.outputs.base_branch }} branch migrations (push) Has been cancelled
## Summary
- Adds the generated `@stackframe/tanstack-start` workspace package
registration.
- Adds TanStack Start platform macros/dependencies to the SDK template
and generator.
- Adds TanStack Start cookie/token-store support plus the handler SSR
guard needed by Start.
## Scope
This intentionally excludes Dashboard V2 routes, hooks, components, app
shell logic, and dashboard API type additions. Those stay in the
existing dashboard PR/branch.
## Validation
- `pnpm install --lockfile-only --ignore-scripts`
- `pnpm install --ignore-scripts`
- `pnpm -C packages/template lint
src/components-page/stack-handler-client.tsx src/lib/cookie.ts
src/lib/stack-app/apps/implementations/client-app-impl.ts`
Package typecheck was attempted with `pnpm -C packages/template
typecheck`, but the clean worktree lacks generated package declaration
outputs for workspace dependencies such as `@stackframe/stack-shared`
and `@stackframe/stack-ui`. Per repo instructions, package
builds/codegen are not run by agents.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* TanStack Start integration: published SDK package, example demo app,
dashboard onboarding flow, framework-aware CTAs/docs, and a
TanStack-specific provider for client-only auth routes.
* Improved client/server auth: safer runtime guards and consistent
cookie/token-store behavior across SSR and client.
* **Documentation**
* New Integrations guide and expanded getting-started/setup docs with
TanStack Start examples and env/key guidance.
* **Chores**
* Template, build, tooling, and demo config updates to support the new
platform.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Summary
Splits the Stack Auth MCP server out of `apps/backend` and into a
dedicated Next.js app at `apps/mcp/`, served on port `:42` (suffixed via
`NEXT_PUBLIC_STACK_PORT_PREFIX`) and exposed in production at
`https://mcp.stack-auth.com/mcp`. The backend no longer carries the MCP
transport route; clients now point at the new host.
Base: `dev` → Head: `chore/move-mcp-to-a-sep-app`
Scope: 34 files, +1425 / −353
## What changed
- **New app** `apps/mcp/` — standalone Next.js + `@vercel/mcp-adapter`,
with:
- `src/app/api/internal/[transport]/route.ts` — MCP transport handler
(moved from backend)
- `src/app/mcp/route.ts`, `src/app/route.ts` — public landing + setup
page
- `src/app/health/route.ts` — health check
- `src/mcp-handler.ts`, `src/setup-page.ts`, `src/analytics.ts`
- **Backend** drops
`apps/backend/src/app/api/internal/[transport]/route.ts` (−105) — MCP
code is gone from the backend image.
- **Dashboard** install hint updated to point at
`https://mcp.stack-auth.com/mcp` (was `/`).
- **Dev launchpad** gets an MCP tile so the new service shows up
alongside the rest of the local stack.
- **CI** workflows (`db-migration-backwards-compatibility`,
`e2e-api-tests*`) start the MCP service in the background before running
tests.
- **Docs** (`docs-mintlify`, `docs/`) and `init-stack` / `init-prompt`
updated to reference the new URL.
- **E2E** `apps/e2e/tests/backend/endpoints/api/v1/internal/mcp.test.ts`
reworked to hit the new host; `helpers.ts` and env files gain an MCP
base-URL var.
## Visuals
### New `apps/mcp` setup page (`https://mcp.stack-auth.com/`)
The standalone app's root now serves a self-contained MCP setup guide
with per-client instructions (Cursor, VS Code, Codex, Claude Code,
Claude Desktop, Windsurf, ChatGPT, Gemini CLI):
### Dev launchpad now lists the MCP service
New tile at port suffix `:42`, importance 2, alongside Backend /
Dashboard / Demo app:
## Notes for reviewers
- The MCP transport endpoint moved path: it was mounted under
`/api/internal/[transport]` in the backend; in the new app it's at the
same path but on the dedicated host. The public-facing URL is
`https://mcp.stack-auth.com/mcp`.
- `apps/mcp` ships its own PostHog analytics client (`src/analytics.ts`)
so the backend doesn't have to proxy events for it anymore.
- Port allocation: `${PORT_PREFIX}42` (default `8142` in dev). Picked to
fit the existing dev-launchpad importance-2 row.
- No DB migrations.
## Test plan
- [x] `apps/mcp` builds and `pnpm dev` serves on `:8142`
- [x] Dev launchpad renders the new MCP tile (screenshot above)
- [x] MCP setup page renders client tabs (screenshot above)
- [x] E2E `mcp.test.ts` updated to hit the new host
- [ ] CI green on `e2e-api-tests*` and
`db-migration-backwards-compatibility` workflows (they were touched to
start the MCP service)
- [ ] `init-stack` / `mcp.ts` install flow lands users on the new URL
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Standalone MCP app added with a public /mcp endpoint and health check.
* MCP appears in the dev-launchpad apps list.
* **Documentation**
* MCP endpoint updated to https://mcp.stack-auth.com/mcp in all setup
guides and installer snippets.
* Setup page enhanced with detailed client install tabs and
instructions.
* **Chores**
* MCP service integrated into CI/e2e workflows and local env configs.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Summary
- Move the `/api/internal/[transport]` MCP route from the docs app to
the backend, so the public `ask_stack_auth` MCP tool is served from the
same origin as the AI query API it proxies to.
- Replace the bespoke docs-tools HTTP client in
`apps/backend/src/lib/ai/tools/docs.ts` with an `@ai-sdk/mcp` client
that talks to Mintlify's generated MCP server. The backend AI agent now
consumes Mintlify's lower-level search/fetch tools directly instead of
going through the docs app.
- Swap `STACK_DOCS_INTERNAL_BASE_URL` for `STACK_MINTLIFY_MCP_URL`
(defaults to the Mintlify-hosted MCP URL).
- Move the `@vercel/mcp-adapter` dependency from `docs` to
`apps/backend`.
## Test plan
- [ ] `pnpm typecheck`
- [ ] `pnpm lint`
- [ ] e2e: new
`apps/e2e/tests/backend/endpoints/api/v1/internal/mcp.test.ts` covers
`tools/list` and validation on `tools/call`
- [ ] Manual: hit `POST /api/internal/mcp` on the backend and confirm
`ask_stack_auth` is listed and callable
- [ ] Manual: confirm backend AI agent docs tools resolve via the
Mintlify MCP URL
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Backend docs tooling now uses a Mintlify MCP server for documentation
tools and discovery.
* **Chores**
* Development environment variables updated to point to the Mintlify MCP
endpoint.
* Backend dependency added to support MCP integration; docs package
dependency removed.
* **Tests**
* Added end-to-end tests for the internal MCP endpoint and tool
validation.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
DB migration compat / Back-compat — Current branch migrations with ${{ needs.check-migrations-changed.outputs.base_branch }} branch code (push) Has been cancelled
DB migration compat / Forward-compat — Current branch code with ${{ needs.check-migrations-changed.outputs.base_branch }} branch migrations (push) Has been cancelled
- Added new internal API endpoint for documentation tools, allowing
actions such as listing available docs, searching, and fetching specific
documentation by ID.
- Updated environment configuration to support optional internal secret
for enhanced security.
- Refactored existing search functionality to utilize the new docs tools
API instead of the previous MCP server.
- Improved error handling and response parsing for documentation-related
requests.
- Expanded documentation to clarify the relationship between the new
tools and existing API functionalities.
This update streamlines the documentation access process and enhances
the overall developer experience.
<!--
Make sure you've read the CONTRIBUTING.md guidelines:
https://github.com/stack-auth/stack-auth/blob/dev/CONTRIBUTING.md
-->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Non-stream AI responses now include a consolidated finalText for
clearer answers.
* Added an internal docs-tools HTTP API to power doc listing, search,
and fetch with optional header-based access control and configurable
service origin.
* **Refinement**
* Consolidated multiple doc tooling paths into a single question-focused
flow; backend now routes to the unified docs-tools endpoint.
* **Documentation**
* Updated guides and knowledge base to describe the new docs query flow
and optional env configuration.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
