fix(server): T3 Connect devices get new permissions after an update

[kroqdotdev]

Problem

A T3 Connect session minted just before a host updates past the permission split keeps the pre-split grant until its token expires (up to an hour). That device can't browse host folders or use other split features, even though a fresh mint would grant them. PermissionUpdateNotice tells the user to pair again with a link, which T3 Connect users can't do. Repro and timeline: #17310.

Change

Migration 61 revokes live cloud-connect sessions whose scopes all come from the pre-split vocabulary. The device's next request fails with invalid_credential (SessionStore rejects revoked sessions). The client then drops the cached DPoP token and mints a new one through the existing cloud flow, as covered by evicts an auth-invalid cached token and obtains a fresh bootstrap in packages/client-runtime/src/authorization/layer.test.ts. A current client requests no scopes, so it gets AuthStandardClientScopes. An older client that requests pre-split scopes gets that narrowed grant back once, with no loop, because the migration runs only once.

The migration leaves alone:

• paired sessions (any other subject)
• expired sessions
• T3 Connect sessions that already carry split permissions

The internal auth doc and remote-access guide now describe this, including the older-client case.

Scope and approval

This needs a maintainer decision and is not yet approved. #10298 set the policy that existing credentials keep exactly their recorded scopes across the split. It removed 050_ExpandLegacyAuthScopes because existing grants are deliberately not widened (comment). This PR makes an exception for one kind of credential, so it touches that decision.

The case for the exception:

• A cloud-connect grant is chosen by the server at mint time, not by the user.
• It lasts at most an hour.
• It is revoked and re-minted through the normal cloud flow, never widened in place.

I asked maintainers on #17310 (question) whether T3 Connect sessions should fall under the #10298 rule. If not, the alternative there is to fix only the recovery advice. I'll rework or close this PR based on the answer.

Verification

• vp test run apps/server/src/persistence/Migrations/061_RevokeLegacyCloudConnectSessions.test.ts apps/server/src/persistence/Migrations/055_OrchestrationV2.test.ts apps/server/src/persistence/reconcileV2PreviewMigration.test.ts packages/client-runtime/src/authorization/layer.test.ts: 36 passed.
  • The new test revokes the exact pre-split grant observed on the affected host (including review:write) and an older client's narrowed grant.
  • It keeps a current T3 Connect session, an expired one, and a paired session with a pre-split grant.
  • It fails if the migration matches nothing.
• I ran the migration's SQL on an in-memory copy of the affected host's auth_sessions. It revoked the three live pre-split T3 Connect sessions (macOS nightly, iOS 2.0.0, Windows 0.0.45) and kept the desktop bootstrap session.
• vp fmt and vp lint on the changed files; tsc --noEmit in apps/server: passed with no errors.
• Not checked: an end-to-end upgrade from 0.0.45 with a live T3 Connect device. I traced the path in source but did not run it: revoked session → invalid_credential → client re-mint.

Model: Claude Opus 5.5. Harness: Claude Code in T3 Code. 🤖 Generated with Claude Code

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Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This PR adds a startup migration that revokes live legacy T3 Connect authentication sessions so devices reconnect with the current permission grant. The change is narrowly tested but directly alters active authentication state and permissions, making human review important.

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Reviewing files that changed from the base of the PR and between 0d299f0 and f063ae6.

📒 Files selected for processing (3)

• apps/server/src/persistence/Migrations/061_RevokeLegacyCloudConnectSessions.test.ts
• docs/internals/environment-auth.md
• docs/user/remote-access.md

🚧 Files skipped from review as they are similar to previous changes (1)

• docs/internals/environment-auth.md

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📝 Walkthrough

Walkthrough

Migration 61 revokes qualifying legacy T3 Connect sessions. The migration registry and upgrade expectations include it. Documentation describes replacement sessions and updated permissions for connected devices.

Changes

Legacy T3 Connect session revocation

Layer / File(s)	Summary
Define and verify session revocation apps/server/src/persistence/Migrations/061_RevokeLegacyCloudConnectSessions.ts, apps/server/src/persistence/Migrations/061_RevokeLegacyCloudConnectSessions.test.ts	Migration 61 sets revoked_at for unrevoked, unexpired cloud-connect sessions whose scopes fall within the frozen pre-split scope list. The test checks that other session cases remain unrevoked.
Register migration and update rollout references apps/server/src/persistence/Migrations.ts, apps/server/src/persistence/Migrations/055_OrchestrationV2.test.ts, apps/server/src/persistence/reconcileV2PreviewMigration.test.ts, docs/internals/environment-auth.md, docs/user/remote-access.md	Migration 61 is registered, and migration-upgrade expectations include it. The documentation describes revoking live pre-split sessions, minting replacements, and permissions for T3 Connect-connected devices.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~12 minutes

Change: Bug fix · Severity of issue fixed: Low

Suggested reviewers: juliusmarminge

Merge Risk: 🔵 Low · up to f063a

Older T3 Connect apps may still lack newly separated permissions until updated. The guidance distinguishes them from up-to-date apps, making this a bounded compatibility limitation rather than a merge blocker.

Security Architecture Review

Security architecture risk: 🔵 Low · up to f063a

The migration selectively revokes legacy cloud sessions while preserving paired clients’ chosen permissions. Replacement credentials still require the existing identity and proof-key controls. The impact appears bounded, but live upgrade recovery and concurrent startup behavior are not fully demonstrated.

Retained concerns
No architecture-level concerns identified.

Security review details

Security Blast Radius

• inferred — Within each upgraded host’s authentication database, the migration can invalidate every session matching the cloud-connect, lifetime, revocation, and legacy-scope predicates. Its selection is not limited to one device, but it excludes other subjects and does not rewrite scopes or proof-key bindings.

Trust Boundaries and Controls

• observed — The existing cloud mint path checks environment identity, linked cloud user, proof-key consistency, proof lifetime, exact environment:connect scope, and replay guards before creating a cloud-connect bootstrap grant. Request authentication also requires DPoP proof matching a bound access token. The migration does not replace these controls with possession of the revoked token.

Resilience and Maintainability Implications

• observed — The existing client recovery implementation removes a rejected cached token only if it still matches the cached credential. Renewal is scoped to environment, session identity, and proof-key thumbprint, with identity validation before persistence. These controls contain late rejection and concurrent renewal without modifying the migrated grant.

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Issue #17310 requires valid pre-split T3 Connect sessions to recover new permissions after a host update. Migration 61 revokes unrevoked, unexpired cloud-connect sessions whose scopes contain only t…
Out of Scope Changes check	✅ Passed	The changes stay within issue #17310. The migration, migration registry updates, regression tests, preview-ledger updates, and auth and remote-access documentation support the session recovery behavio…
Title check	✅ Passed	The title clearly and concisely describes the main change: updating T3 Connect devices so they receive the new permissions after a server update.
Description check	✅ Passed	The description is complete and follows the required sections. It explains the problem, implementation, scope, approval status, verification results, limitations, and agent usage. The pending maintain…

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Actionable comments posted: 1

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• 🪄 Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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Inline comments:
Review comments at
@apps/server/src/persistence/Migrations/061_RevokeLegacyCloudConnectSessions.ts:
- Line 31: Update the legacy cloud-connect replacement flow associated with SET
revoked_at so requests using pre-split scopes receive the intended permissions,
or narrow the migration’s upgrade objective and test that case. In
apps/server/src/persistence/Migrations/061_RevokeLegacyCloudConnectSessions.ts
(line 31), make the corresponding migration change; in
docs/internals/environment-auth.md (lines 70–71), qualify the claim that
replacements carry the current standard grant; and in docs/user/remote-access.md
(line 273), explain when a device needs a new grant instead of promising
automatic new permissions.

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📥 Commits

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📒 Files selected for processing (7)

• apps/server/src/persistence/Migrations.ts
• apps/server/src/persistence/Migrations/055_OrchestrationV2.test.ts
• apps/server/src/persistence/Migrations/061_RevokeLegacyCloudConnectSessions.test.ts
• apps/server/src/persistence/Migrations/061_RevokeLegacyCloudConnectSessions.ts
• apps/server/src/persistence/reconcileV2PreviewMigration.test.ts
• docs/internals/environment-auth.md
• docs/user/remote-access.md

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