Hypatia May
b341155652
A plugin owning a standalone open/close bracket cannot tell a dead marker from a live one: an unmatched `compact/start` reads identically whether the previous writer died mid-compaction or a compaction is running now. `Session.firstLiveSeq` already holds that answer exactly, but only in memory. Append the log-only `session/inherited` event at that seq from the seeded constructor — the single waist all six seeded-start paths pass through (resume, configured startup on a persisted id, `sessions.fork()`, a subagent fork child, `adopt()`'s live prefix, and a bare seeded `create`). Read it through the new `isInheritedSeq(events, seq)`. The constructor placement means persistence needs no changes: the marker is already in `events` when a backend captures the creation seed, so it rides the ordinary seed path with no load-time write. It also covers fork, where the inherited bracket's owner may still be running — the case a persistence-layer boundary could not reach. Activity ordering excludes the boundary through `lastActivityTime()`, since lazy resume makes browsing a pickup and the three call sites would otherwise float every opened session to the top of a picker or list.
session-title/ — log-backed session-title capability family
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Durable session-title state, one optional asynchronous provider seam, and two opt-in model-backed implementations. The built-in first-message fallback is part of the service, so every composition can title a session without an auxiliary model call.
| Package | Role | ctx key |
|---|---|---|
session-title/ |
Log fold, deterministic fallback, provider registry, and refresh API | ctx.sessionTitle |
session-title-llm/ |
Shared route, request logging, prompt, timeout, stream, and validation helper | — |
session-title-first-message-llm/ |
Optional provider using the first eligible human message | registers on ctx.sessionTitle |
session-title-all-messages-llm/ |
Optional provider using every eligible human message | registers on ctx.sessionTitle |
Only one provider may register at a time. The shared demo spine mounts the fallback service but leaves both model providers outside default composition, so deployments choose auxiliary cost and retitling cadence explicitly.