* fix(cursor): migrator path-priority + ambiguity surface (closes #844 regression) The legacy-to-ACP migrator's `findLegacyChatStore()` walks `~/.cursor/chats/<workspace-hash>/<cursorSessionId>/store.db` via `readdirSync()` and returns the FIRST match. When the same cursor session id exists in more than one workspace-hash drawer (operator opened the session from a worktree, an old workspace clone, etc.) the readdir order picks an arbitrary candidate. The migrator then transplants alien content into the ACP target, deletes the source drawer, and reports success - because the verify probe only checks "loads cleanly", not "loaded the right content". Operator session resurrects with no recall of its real history. Four-part fix (all four must land together): 1. Path-priority discovery in `findLegacyChatStore(id, home, cwd?)`: - Optional 3rd arg = canonical workspace path (caller passes `session.metadata.path`). - Compute md5(cwd) and check that drawer FIRST. - Fall back to readdir scan only if the canonical drawer is empty. - If 2+ candidates remain after fallback, throw `AmbiguousLegacyStoreError` listing all of them (workspaceHash, sizeBytes, mtimeMs). 2. Ambiguity surface in `maybeAutoMigrateLegacyCursorSession`: - Catch `ambiguous_legacy_store` / `size_mismatch` refusals and promote `cursorMigrationState` from 'in_progress' to a new 'ambiguous' state instead of silently clearing the banner. Operator sees an actionable web-banner. 3. Size sanity check before transplant: - Compare HAPI's known message count (new `MessageStore.countMessages` + `CursorLegacyMigratorDeps.getHapiMessageCount` dep) against the candidate `store.db`'s blob count. If message count > 100 AND blob count < messageCount/4, refuse with `size_mismatch`. - Skipped when message count is 0 (brand-new session) or the dep is unwired (unit tests, CLI direct callers). 4. Diagnostic logging on every successful transplant: - `[migrator] transplanted` info log capturing cursorSessionId, picked workspaceHash, candidate count discovered, sourceBytes, sourceBlobCount, targetAcpPath, sourceRemoved, canonical-path md5. Future regressions of this bug shape are diagnosable from `journalctl -u hapi-hub` without blob-overlap forensics. Tests added in `hub/src/cursor/cursorLegacyMigrator.test.ts`: - regression guard for single-drawer discovery - canonical-path wins over readdir order - ambiguity throws with all candidates listed (3-drawer + 2-drawer no-canonical-arg variants) - canonical-path resolves ambiguity cleanly - listLegacyChatStoreCandidates enumeration - workspaceHashFromPath shape - migrateOne happy path with canonical workspace + 3 sibling decoys - migrateOne refuses with ambiguous_legacy_store (3 drawers, no canonical match) and leaves all sources untouched - migrateOne proceeds when canonical path resolves - size_mismatch refuses tiny candidate when messageCount=6000 - size_mismatch passes when candidate blob count meets the floor - size sanity skipped on messageCount=0, missing dep, throwing dep, boundary (messageCount=100) - countLegacyStoreBlobs returns counts / null on bad path And in `hub/src/sync/syncEngineAutoMigrate.test.ts`: - cursorMigrationState promoted to 'ambiguous' on ambiguous_legacy_store / size_mismatch refusals. Schema: - `shared/src/schemas.ts`: cursorMigrationState enum gains 'ambiguous'. - `shared/src/apiTypes.ts`: CursorMigrateRefusalReason gains 'ambiguous_legacy_store' + 'size_mismatch'. Real-world repro (operator's tooling session, 2026-06-09): three legacy drawers contained one cursor session id - one with the real 21k-blob history, two with stale 19/568-blob diagnostic snapshots. Migrator silently transplanted the 568-blob alien content; resurrected session had no memory of prior history. Manual rescue completed; this fix prevents recurrence and surfaces the ambiguity to the operator instead. * fix(cursor): address cold review on migrator path-priority fix Self-review against the cold-PR rubric surfaces four polish items on the previous commit; all four addressed in-loop before push. - Major: `migrator:transplanted` candidate count was captured AFTER the source rm, so for the dominant single-candidate happy path the log reported `candidateCount=0, sourceRemoved=true`. Useless for diagnosing a future regression of the bug shape this PR is fixing. Snapshot candidates + source-side size + source-side blob count BEFORE any destructive step and use those for the log. - Minor: `sourceBytes` and `sourceBlobCount` were read from the destination path (acpSessionDir/store.db). The cp guarantees they match, but the field names imply source-side measurement. Now they measure the source directly. - Minor: `setCursorMigrationStateAmbiguous` silently returned false on cache miss / repeated version mismatch / write failure, letting the finally{} block clear the banner without any log. Now emits a warn-level log so the gap is diagnosable from journalctl. - Minor: `findLegacyChatStore` is exported public API and used as a free function in unit tests. An out-of-band caller bypassing preflightSession could pass `..` or `/etc/passwd` and have the inner `join(chatsRoot, wsh, id, 'store.db')` resolve to an arbitrary on- disk path. The probe is read-only `statSync` so blast radius is small, but enforce the same CURSOR_SESSION_ID_RE at the function boundary as a defence-in-depth. New unit test locks the behaviour. Hub test suite: 414 pass, 0 fail. Typecheck clean across cli/web/hub. * fix(cursor): cold-review polish on migrator path-priority (tiann/hapi#873) - Web `CursorMigrationBanner` now renders a "Manual review needed" state for `cursorMigrationState === 'ambiguous'` (Major #1: caller was promoting the metadata flag but no UI surfaced it). - Pin the md5-fixture contract for `workspaceHashFromPath`: raw, no-normalization, trailing-slash-distinct hashes computed via `printf '%s' <path> | md5sum` (Major #2: prevents algorithm drift that would silently revert path-priority discovery to fallback). - Snapshot full candidate set BEFORE the canonical fast-path resolves a single drawer so the `migrator:transplanted` log reports the decision-time count, not a post-rm undercount (Minor #1). - Warn log when canonical-path drawer is missing but readdir hands back exactly one candidate - regression-equivalent behaviour, but the size mismatch warrants a journalctl trail (path-normalization corner case the maintainer can grep for). - Boundary test: `messageCount = 101` (first value above the skip threshold) engages the size sanity check, pinning the cutoff contract (Nit). - Schema docstring on `cursorMigrationState` enum spelling out the banner contract per value (Nit). - syncEngine `getHapiMessageCount` warn-logs `countMessages` throws instead of silently downgrading to 0 (would chronically disable the floor). Drafted with claude-4.6-sonnet-thinking via Cursor; reviewed and tested by the operator. tiann/hapi#873. Co-authored-by: Cursor <cursoragent@cursor.com> * fix(cursor): correct log-search strings in ambiguous banner copy The en/zh-CN locale strings told users to grep for 'migrator:ambiguous_legacy_store' and 'migrator:size_mismatch' but the hub emits '[migrator] ambiguous legacy store; refusing transplant' and '[migrator] size sanity check refused transplant'. Fix both locale files to quote the actual log prefix so the journalctl grep the operator is directed to actually hits. Addresses tiann/hapi#877 bot finding (Minor). Co-authored-by: Cursor <cursoragent@cursor.com> * fix(cursor): address #877 bot Minor findings (trim + boundary guard) - Remove .trim() from canonical path before hashing: Cursor hashes raw workspace-path bytes; trimming a POSIX path with leading/ trailing spaces would hash to the wrong drawer, causing a false canonical miss and potential ambiguity refusal. - Add CURSOR_SESSION_ID_RE guard to listLegacyChatStoreCandidates: the function was exported without the same traversal-ID boundary check present in findLegacyChatStore. A future direct caller bypassing findLegacyChatStore could stat paths outside the intended <wsh>/<cursorSessionId>/store.db shape. - Move CURSOR_SESSION_ID_RE declaration above both functions that reference it so there is no temporal-dead-zone hazard. Addresses tiann/hapi#877 bot review Minor findings. Co-authored-by: Cursor <cursoragent@cursor.com> --------- Co-authored-by: Cursor <cursoragent@cursor.com>
hapi-web
React Mini App / PWA for monitoring and controlling hapi sessions.
What it does
- Session list with status, pending approvals, todos, and summaries.
- Chat view with streaming updates and message sending.
- Permission approval and denial workflows.
- Permission mode and model selection.
- Machine list and remote session spawn.
- File browser and git status/diff views.
- PWA install prompt and offline banner.
Runtime behavior
- When opened inside Telegram, auth uses Telegram WebApp init data.
- When opened in a normal browser, you can log in with
CLI_API_TOKEN:<namespace>(orCLI_API_TOKENfor the default namespace). - The login screen includes a top-right hub picker; if unset, the app uses the same origin it was loaded from.
- Live updates come from the hub via SSE.
Routes
See src/router.tsx for route definitions.
/- Redirect to /sessions./sessions- Session list./sessions/$sessionId- Chat interface./sessions/new- Create new session./sessions/$sessionId/files- File browser with git status./sessions/$sessionId/file- File viewer with diff support./sessions/$sessionId/terminal- Terminal interface./settings- Application settings.
Features
Session list (src/components/SessionList.tsx)
- Active/inactive status indicator.
- Session title from name, summary, or path.
- Todo progress display.
- Pending permission request count.
- Agent flavor label (claude/codex/gemini).
- Model mode display.
Chat interface (src/components/SessionChat.tsx)
- Message thread with infinite scroll.
- Composer for sending messages.
- Permission mode toggle (default/acceptEdits/bypassPermissions/plan).
- Model selection (default/sonnet/sonnet[1m]/opus/opus[1m]).
- Session abort and mode switch controls.
- Context size display.
- Per-session scratchlist (
src/components/AssistantChat/ScratchlistPanel.tsx)- Workbench panel for held notes/drafts; distinct from the queue.
- Add/delete/reorder entries; promote to composer (copy) or queue (send).
- Persists across reloads via
localStoragekeyed per session. - Keyboard shortcut: Ctrl/Cmd+Shift+S to focus the add-input.
File browser (src/routes/sessions/files.tsx)
- Git status view (staged/unstaged files).
- File search with ripgrep.
- Navigate to file viewer.
File viewer (src/routes/sessions/file.tsx)
- File content display with syntax highlighting.
- Staged/unstaged diff view.
Terminal (src/routes/sessions/terminal.tsx)
- Remote terminal via xterm.js
- Real-time via Socket.IO
- Resize handling
Voice assistant
- ElevenLabs integration (@elevenlabs/react)
- Real-time voice control
New session (src/components/NewSession/)
Modular session creation:
- Machine selector
- Directory input with recent paths
- Agent type selector
- Model selector
- Permission mode toggle (YOLO mode)
Authentication
See src/hooks/useAuth.ts and src/hooks/useAuthSource.ts.
- Telegram Mini App: Uses initData from WebApp SDK.
- Browser: Uses CLI_API_TOKEN from login prompt.
- JWT tokens with auto-refresh.
Data fetching
See src/hooks/queries/ for query hooks and src/hooks/mutations/ for mutations.
- Sessions, messages, machines via TanStack Query.
- Git status and file operations.
- Optimistic updates for message sending.
Real-time updates
See src/hooks/useSSE.ts.
- SSE connection to
/api/events. - Session/message/machine update events.
- Automatic cache invalidation on events.
Stack
React 19 + Vite + TanStack Router/Query + Tailwind + @assistant-ui/react + xterm.js + @elevenlabs/react + socket.io-client + workbox + shiki.
Source structure
src/router.tsx- Route definitions.src/components/- UI components.src/hooks/- Data fetching and state hooks.src/api/client.ts- API client.src/types/api.ts- Type definitions.
Development
From the repo root:
bun install
bun run dev:web
If testing in Telegram, set:
HAPI_PUBLIC_URLto the public HTTPS URL of the dev server.CORS_ORIGINSto include the dev server origin.
Tests
Unit tests run under vitest + jsdom:
bun run test:web
End-to-end browser tests for the scratchlist component (real Chromium, real
inert focus blocking, real localStorage round-trips) live at the repo root
under e2e/:
bun run test:e2e # headless
bun run test:e2e:ui # Playwright UI mode (debug)
The spec drives a Vite-served fixture page (web/e2e-fixtures/scratchlist-fixture.html)
that mounts the production ScratchlistPanel in isolation, so no hub /
auth / socket setup is required.
Build
bun run build:web
The built assets land in web/dist and are served by hapi-hub. The single executable can embed these assets.
Standalone hosting
You can host web/dist on a static host (GitHub Pages, Cloudflare Pages) and point it at any hapi hub:
- Build the web app. If your static host uses a subpath, set the Vite base:
bun run build:web -- --base /<repo>/
- Deploy
web/distto your static host. - Set hub CORS to allow the static origin (
HAPI_PUBLIC_URLorCORS_ORIGINS). - Open the static site, click the top-right Hub button on the login screen, and enter the hapi hub origin.
Clear the hub override in the same dialog to return to same-origin behavior.