Distillation

Date: Sep 14, 2026

• 🔴 (08:18) User directed: “Replace local ownership with durable multi-node ownership when clustered.” This replaces the current process-local Session ownership model documented in /home/byk/Code/opencode/packages/core/src/session/runner/llm.ts.
• 🔴 (08:18) User established the projection invariant: “never resume an older assistant projection.” In /home/byk/Code/opencode/packages/core/src/session/projector.ts, a newer turn supersedes stale incomplete rows.
• 🟡 (08:18) /home/byk/Code/opencode/packages/core/src/session/run-coordinator.ts serializes execution per key while allowing different keys to run concurrently; it snapshots keys owned by the coordinator, starts execution while idle or joins active execution, and stops active execution by interrupting entry.owner and waiting for cleanup. Ownership is represented by owner?: Fiber.Fiber<void, never>.
• 🟡 (08:18) /home/byk/Code/opencode/packages/core/src/session/execution.ts exposes SessionExecution, snapshots active execution owned by the current process, starts execution while idle or joins the active execution, and routes a Session ID to the runner owned by that Session’s Location.
• 🟡 (08:18) /home/byk/Code/opencode/packages/core/src/session/runner/llm.ts assigns session ownership and controls to the runner, instructs callers to use llm.stream(request) for each provider turn, and keeps tool execution and continuation in that layer. Interrupted unsettled tools are failed with "Tool execution interrupted"; other failures use Tool execution failed: ${message}.