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https://github.com/deepseek-ai/deepseek-harness
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2a4d89a4bd
The agent factory (`ctx.agents.create`/`resume`, the `AgentFactory` seam)
now returns `AgentHandle = { agent; dispose(): Promise<void> }` instead of a
bare `Agent`. The disposer is a capability: only the holder can tear down
exactly this agent — stop its loop, await the loop's exit (true quiescence,
not just the `disposed` status flip), unregister it, and remove its session
from the store.
The teardown ORDER is load-bearing for durability. The loop appends its
final `turn/end` + runs `session/flush` AFTER an abort, delivered through
`session.onAppend` → `session/event`; if the session-store effect (which
detaches `onAppend`) were torn down first, those closing events would never
reach persistence. So `dispose()`:
1. runs the register+start effect disposer (sync: request loop stop),
2. `await agent.done` (loop exits, final flush captured), THEN
3. runs the session disposer (detach onAppend + delete store entry).
`SessionStore.createOwned()` exposes the session-create effect's disposer
(plain `create()` discards it — fiber-owned). `AgentLoop` funnels both
factory entrypoints (`createAgent`, `resumeWith`) through a shared
`startOwned` that composes the ordered teardown; the config path keeps a
fiber-owned agent by discarding the handle.
`ctx.agents.get(id)` still returns a bare `Agent` — the handle is only for
the owner that created it.