Distillation

Date: Sep 15, 2026

• 🟡 (13:42) packages/core/src/database/migration.gen.ts currently imports 38 generated migrations, ordered from 20260127222353_familiar_lady_ursula through 20260622202450_simplify_session_input, via Promise.all([...]).map((module) => module.default) satisfies DatabaseMigration.Migration[]; it does not yet list the 3 newly added September migrations.
• 🟡 (13:42) Git status showed 3 newly added migration files: packages/core/src/database/migration/20260914170650_session-recovery.ts, packages/core/src/database/migration/20260914214636_session-execution.ts, and packages/core/src/database/migration/20260914222526_session-execution-phase.ts.
• 🟡 (13:42) Git status additionally showed modified files not present in the earlier 20-file diff list: packages/opencode/src/server/routes/instance/httpapi/server.ts and packages/server/src/routes.ts; packages/core/src/session/recovery.ts and packages/core/test/session-execution-local.test.ts were newly added.
• 🟡 (13:44) Search found 5 matches for relevant session/process guidance: 4 in /home/byk/Code/opencode/AGENTS.md at lines 11, 155, 158, and 160, plus 1 in /home/byk/Code/opencode/packages/opencode/AGENTS.md at line 105.
• 🟡 (13:44) /home/byk/Code/opencode/AGENTS.md:155 specifies that SessionExecution remains process-global and Session-ID based; its local implementation owns the process-local Session coordinator and discovers placement through SessionStore plus LocationServiceMap.get(session.location) only when a drain starts; no layer should take a Session ID; V2 interruption targets the active process-local ownership chain, while idle or missing interruption is a no-op.
• 🟡 (13:44) /home/byk/Code/opencode/AGENTS.md:158 specifies that local Session drains remain process-local until clustering exists; SessionRunCoordinator joins explicit same-Session resumes, coalesces prompt wakeups, and permits different Sessions to run concurrently; advisory wakes drain only eligible durable inbox rows; post-crash continuation recovery needs a separate explicit design before retrying provider work; a drain has neither durable identity nor a transcript boundary.
• 🟡 (13:44) /home/byk/Code/opencode/AGENTS.md:160 specifies that EventV2 replay owner claims must remain separate from clustered Session execution ownership.
• 🟡 (13:44) /home/byk/Code/opencode/packages/opencode/AGENTS.md:105 directs cleanup of subscriptions and processes to use Effect.addFinalizer or Effect.acquireRelease inside the InstanceState.make closure.