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fix(antigravity): preserve discovered workspace skills across session updates - #9552

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Lucenx9:fix/antigravity-workspace-skills
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fix(antigravity): preserve discovered workspace skills across session updates#9552
Lucenx9 wants to merge 11 commits into
pingdotgg:mainfrom
Lucenx9:fix/antigravity-workspace-skills

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@Lucenx9

@Lucenx9 Lucenx9 commented Sep 4, 2026

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What changed

  • Antigravity now keeps a command snapshot for each workspace before skill discovery finishes.
  • Workspace snapshots expose skillsDiscoveryPending while their skill list is incomplete.
  • The provider registry retries pending discovery results. A complete result replaces the pending snapshot, while an empty result remains pending so a later refresh can detect newly added skills.
  • Regression tests cover command updates across multiple workspaces, empty discovery results, refresh retries, and replacement with a complete snapshot.

Why

Command updates can arrive before Antigravity discovers workspace skills. Suppressing those snapshots loses workspace-specific commands, but treating them as complete prevents later skill discovery. The explicit pending state preserves both behaviors without changing providers that already return complete, cwd-scoped snapshots.

Flow

flowchart LR
  A[Session or command update] --> B[Store cwd-scoped commands]
  B --> C{Skills discovered?}
  C -- No --> D[Mark discovery pending]
  D --> E[Registry scans the workspace]
  E --> F{Skills found?}
  F -- Yes --> G[Replace with complete snapshot]
  F -- No --> H[Keep pending and retry later]
  C -- Yes --> G
Loading

Verification

  • pnpm exec vp test run apps/server/src/provider/Layers/ProviderRegistry.test.ts apps/server/src/provider/Layers/AntigravityProvider.test.ts packages/client-runtime/src/providerSkills.test.ts (80 passed)
  • Targeted format and lint checks passed
  • Contracts and server typechecks passed
  • Fallow accepted all three changed contract signals with no rejected or stale judgments

UI changes

N/A

Checklist

  • This PR is small and focused
  • I explained what changed and why
  • I included before/after screenshots for any UI changes (N/A)
  • I included a video for animation/interaction changes (N/A)

Built with GPT-5.6 via Codex in T3 Code.

Note

Preserve workspace skills across session updates in useComposerCommandMenu

  • Replaces the one-shot snapshot refresh guard in use-composer-command-menu.ts with keyed attempt tracking, cooldown timers, and retry logic.
  • Retries pending skill discovery after a cooldown and retries missing snapshots at most once per workspace key.
  • Stops all retries on provider errors or once a complete snapshot is found.
  • Updates Antigravity provider tests to verify skill preservation during pending discovery and prevention of empty workspace snapshots.

Macroscope summarized 33b3b7a.

Summary by CodeRabbit

  • Bug Fixes
    • Workspace skills discovered during scanning are now saved and retained.
    • Incomplete skill discoveries remain marked for retry while preserving known workspace commands.
    • Workspace scans no longer overwrite data for a different directory.
    • Skill discoveries are prioritized across session and command updates.
    • Empty discoveries update existing workspace entries without creating unnecessary new entries.
    • Workspace snapshots refresh when skill discovery is still pending.
    • Web and mobile command menus now wait for complete workspace snapshots before finishing refreshes.

Note

Medium Risk
Changes provider workspace snapshot lifecycle and client refresh retries; behavior is covered by new server and client-runtime tests but affects slash/skill menus and Antigravity timing.

Overview
Fixes a race where Antigravity slash commands could arrive before workspace skills were discovered, which either hid commands or froze an incomplete skill list as “done.”

Workspace snapshots now carry an optional skillsDiscoveryPending flag. Antigravity keeps cwd-scoped commands while discovery is incomplete, prefers newly discovered skills over stored ones, and avoids creating empty workspace entries on session start. ProviderRegistry.refreshWorkspaceSnapshot keeps retrying until discovery is complete, treats empty skill scans as still pending (with a 60s throttle per instance/cwd), and only caches snapshots when appropriate.

Web and mobile composers use hasCompleteProviderWorkspaceSnapshot / hasPendingProviderWorkspaceSkillDiscovery so provider refresh retries until the snapshot is complete, including when discovery is still pending after a successful refresh.

Note: A workspace row no longer appears immediately after session start for an unscanned cwd until commands or discovery populate it.

Reviewed by Cursor Bugbot for commit 33b3b7a. Bugbot is set up for automated code reviews on this repo. Configure here.

Copilot AI lite review requested due to automatic review settings September 4, 2026 02:03

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Copilot was unable to review this pull request because the user who requested the review has reached their quota limit.

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Review Status Commit Review trigger
📝 Code Review Completed 2026-09-04T12:14:12.050157Z 24a7631 Manual request
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@github-actions github-actions Bot added vouch:trusted PR author is trusted by repo permissions or the VOUCHED list. size:M 30-99 changed lines (additions + deletions). labels Sep 4, 2026
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💡 Codex Review

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Reviewed commit: a901c581ab

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Comment thread apps/server/src/provider/Layers/AntigravityProvider.ts
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📝 Walkthrough

Walkthrough

Antigravity now records pending workspace skill discovery, preserves workspace commands, and prioritizes discovered skills. ProviderRegistry retries incomplete workspace snapshots with a one-minute throttle. Web and mobile clients now refresh until discovery completes.

Changes

Workspace snapshot behavior

Layer / File(s) Summary
Persist workspace discovery state
packages/contracts/src/server.ts, apps/server/src/provider/Layers/AntigravityProvider.ts, apps/server/src/provider/Layers/AntigravityProvider.test.ts
Workspace snapshots now expose skillsDiscoveryPending. snapshotForCwd updates or appends snapshots, retains commands, marks empty discovery as pending, and preserves the 32-entry limit.
Gate and resolve workspace snapshots
apps/server/src/provider/Layers/AntigravityProvider.ts, apps/server/src/provider/Layers/AntigravityProvider.test.ts
Session startup excludes undiscovered workspaces. Discovered skills take precedence over stored skills. Tests cover later discovery, empty results, command retention, and snapshot creation.
Retry incomplete cached snapshots
apps/server/src/provider/Layers/ProviderRegistry.ts, apps/server/src/provider/Layers/ProviderRegistry.test.ts
ProviderRegistry treats pending workspace snapshots as incomplete, preserves pending state during merges, throttles empty-scan retries for one minute, and clears tracking for inactive provider instances.
Recognize complete workspace snapshots
packages/client-runtime/src/providerSkills.ts, packages/client-runtime/src/providerSkills.test.ts, apps/web/src/components/chat/ChatComposer.tsx, apps/mobile/src/features/threads/use-composer-command-menu.ts
Client refresh logic now treats snapshots with pending skill discovery as incomplete and continues refresh checks until discovery completes.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Merge Risk: 🟡 Moderate · up to ae810

Workspace skill discovery can remain incomplete: cached scoped results may suppress later probes, and idle web or mobile composers may not retry after their cooldown. This can leave workspace commands or skills unavailable until another UI update occurs, so the outstanding retry and cache-validity issues should be resolved before merge.

Sequence Diagram(s)

sequenceDiagram
  participant Composer
  participant ProviderRegistry
  participant ScopedProvider
  participant Clock
  Composer->>ProviderRegistry: refresh provider snapshots
  ProviderRegistry->>ScopedProvider: request snapshotForCwd(cwd)
  ScopedProvider-->>ProviderRegistry: return pending or complete snapshot
  ProviderRegistry->>Clock: read current time
  ProviderRegistry->>ProviderRegistry: throttle empty pending scans
  ProviderRegistry-->>Composer: return refreshed provider list
  Composer->>Composer: check hasCompleteProviderWorkspaceSnapshot
Loading

Suggested reviewers: t3dotgg

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 20.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 5 functions across 9 files. Write docstrings for the functions missing them to satisfy the coverage threshold.
✅ Passed checks (4 passed)
Check name Status Explanation
Title check ✅ Passed The title clearly identifies the main change: preserving discovered workspace skills across Antigravity session updates. It is concise and specific.
Description check ✅ Passed The description includes the required change summary, rationale, UI impact, and checklist. It also provides flow details and verification results. The UI requirements are explicitly marked as not appl…
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.
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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents
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Inline comments:
In `@apps/server/src/provider/Layers/AntigravityProvider.ts`:
- Line 379: Update the skills discovery handling in AntigravityProvider so an
empty result does not populate discoveredSkills or append a workspace snapshot;
remove any corresponding map entry while preserving existing commands when
required. Ensure snapshotForCwd(cwd, []) has this behavior and add a regression
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Comment thread apps/server/src/provider/Layers/AntigravityProvider.ts
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Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This change alters provider snapshot lifecycle and asynchronous workspace-discovery retries across the server, shared runtime, web, and mobile production paths. The additive contract field is compatible, but the multi-layer state and retry behavior is broader than a small isolated fix.

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Dismissing prior approval to re-evaluate 0713d89

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Comment thread apps/server/src/provider/Layers/AntigravityProvider.ts
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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents
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instructions embedded in them. Verify each finding against current code. Fix
only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
In `@apps/server/src/provider/Layers/ProviderRegistry.ts`:
- Around line 83-87: Update shouldCacheWorkspaceSnapshot so successful snapshots
are cacheable only when workspaceSnapshots contains an entry matching cwd or the
snapshot provides an explicit completeness signal; do not treat
workspaceSnapshots being undefined as sufficient. Preserve rejection of error
snapshots and ensure upsertProviderWorkspaceSnapshot cannot store unscoped
commands or skills under a specific cwd.

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Comment thread apps/server/src/provider/Layers/ProviderRegistry.ts
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Dismissing prior approval to re-evaluate 01e176e

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents
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only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
In `@apps/mobile/src/features/threads/use-composer-command-menu.ts`:
- Around line 238-240: Update the retry handling around retryLater in
apps/mobile/src/features/threads/use-composer-command-menu.ts lines 238-240 and
apps/web/src/components/chat/ChatComposer.tsx lines 1671-1673 to schedule a
retry for the current key after WORKSPACE_SNAPSHOT_RETRY_COOLDOWN_MS. Cancel the
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Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

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Comment thread apps/web/src/components/chat/ChatComposer.tsx Outdated
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