Distillation

Date: Sep 14, 2026

• 🔴 (23:25) User directed that local session-runner ownership be replaced with durable multi-node ownership when operating in a cluster.
• 🟡 (23:25) packages/core/src/session/runner/llm.ts was updated to pass a startCommit callback to createLLMEventPublisher; the callback receives assistantMessageID and performs a database operation as part of assistant-step startup.
• 🟡 (23:25) packages/core/src/session/runner/llm.ts now marks unsettled tools failed after interruption via publisher.failUnsettledTools("Tool execution outcome unknown after interruption").
• 🟡 (23:25) Existing non-interruption tool failure handling remains distinct, using publisher.failUnsettledTools(\Tool execution failed: ${message}`)`.
• 🟡 (23:25) packages/core/src/session/runner/llm.ts changed overflow-recovery handling to include a database operation and terminate defects with .pipe(Effect.orDie).
• 🟡 (23:25) Assistant-step creation near snapshot processing was restructured so the step-start operation receives snapshot: endSnapshot and performs associated database work, rather than only assigning assistantMessageID: yield* publisher.startAssistant().