A DM addressed to one agent that @-mentions another was silently
dropping the second agent out of the conversation:
* `dispatchAgentMessage` added the mentioned agent to the wake set,
so CEO's heartbeat fired — but
* `listAgentInboxUnread` only surfaced messages where the current
agent was `to_agent_id` or sat in a matching channel/project/
department. Mentions were invisible, so CEO's next turn saw nothing
new and returned silently. From the operator's chair this looked
exactly like "CEO ignored me; 张工程师 answered instead".
* `findMentionedAgentIds` had a latent bug on top: its unique-alias
filter used `ids.length === 1`, but a single agent whose name
matched its role registered itself twice, tripped the filter, and
every `@CEO` in a scaffold with role === name was a no-op. Once
inbox visibility was fixed the bug became load-bearing.
Root-cause fixes:
* New migration v48 adds `agent_message_mentions(message_id, agent_id,
company_id, created_at)` so mention fan-out is a first-class join.
* `sendAgentMessage` now takes the resolved mention set and writes
the row + mentions in a single transaction — a crash between the
two writes can no longer leave a message visible to the recipient
but invisible to the mentioned agent.
* `dispatchAgentMessage` computes the mention set exactly once via
`resolveMentionedAgentIds` and hands the same list to both the DB
write and `resolveMessageWakeTargets`, so persistence and wake
stay in lockstep.
* `listAgentInboxUnread` and `listAgentMessages` gain an `id IN
(select message_id from agent_message_mentions …)` clause so the
mentioned agent's inbox actually contains the message that woke it.
* `findMentionedAgentIds` now stores per-alias agent IDs in a `Set`
and filters on `ids.size === 1`, dropping the self-duplication
bug while preserving the "refuse ambiguous aliases" semantics.
* Company teardown drops `agent_message_mentions` alongside the
existing `agent_message_reads` cleanup so deletes stay clean.
Tests pin the new behaviour: a DM with a `@CEO` mention reaches
CEO's inbox and both agents get woken, while a DM whose recipient
is `__board__` never attempts to wake the human sentinel.
Sessions are already agent-scoped post-v34, but the code kept routing
rotation / accumulation / handoff through the task indirection. Heartbeat
runs (no task) silently skipped all three, letting taskless transcripts
grow past the model's context window — the 7M-token explosion.
- DB adds getSessionById(sessionId) — direct lookup bypassing
tasks.active_session_id
- session-management-service: generateHandoff(session) is now agent-scoped,
walking recent runs across tasks + heartbeats; getHandoffForAgent(agentId)
is the canonical lookup, getHandoffContext(taskId) is a thin shim for
callers that still hold a task id
- turn-context.ts::resolveSession drops the `if (!task)` early return:
rotation evaluation runs on the agent session unconditionally
- run-finished-helpers.ts::accumulateAndRotateSession drops the `!task`
gate: tokens accumulate and rotation fires for every run, keyed on the
agent session, not the task
- Rotation evaluator contract: evaluatePreRunSessionRotation(agentId,
connectorId) → { rotated, handoff, sessionId }; old (taskId, connectorId)
signature removed
IPC contract tightening: ipc-support::emitEvent becomes a best-effort
sink. "Render frame was disposed" during renderer reload is a lifecycle
signal, not a logic error; silently drop it instead of letting it abort
downstream event emissions.
Artifact projection: pi's write/edit tool results now upsert a
`work_products` row via a new agent-runtime/artifact-projector.ts. No
more agents writing 54 files into the workspace that the UI never sees.
Migration v40 relaxes work_products.task_id to nullable so heartbeat
artifacts can register too.
File size: split agent-event-projection.ts out of runtime-bridge.ts to
keep the bridge under the 400-line cap after adding the projector hook.
Tests: 604 unit + integration green; generateHandoff callsites updated
for the single-argument signature; artifact-projector has pure-function
coverage via the projector module's own shape.
The NOT NULL constraint forced heartbeat runs to synthesize a fake task
row (`[Heartbeat] X — Check for work`) so the FK could resolve. Three
layers of code — acquireHeartbeatTask, findReusableHeartbeatTask,
cleanupDuplicateHeartbeatTasks, plus the is_heartbeat flag column + UI
filter — existed to paper over one bad constraint. Remove the
constraint and the whole workaround vanishes.
SQLite table rebuild with data preservation. Live production DB, no
backup — migration is atomic, idempotent, and verified before DROP.
## Migration v35 (rebuild runs with nullable task_id)
Uses `fn:` form so it can:
- Snapshot `COUNT(*) FROM runs` before copy
- Walk `PRAGMA table_info(runs)` to detect drift columns (v34 declared
a column set; any additive ALTER since v14 shows up here)
- Assert `COUNT(*) FROM runs_new == beforeCount` before `DROP TABLE runs`
- `PRAGMA defer_foreign_keys = ON` so run_events(run_id) FK defers to
commit time, by which runs has the same id set under the new name
- Recreate all 6 indexes on the new table
If the assertion fails, the migration throws inside the existing
`transaction()` wrapper. SQLite rolls back the whole migration, old
`runs` table is untouched, `schema_migrations` never records v35. Next
app start retries cleanly.
## Migration v36 (drop tasks.is_heartbeat + synthetic rows)
Runs now carry `task_id = NULL` for heartbeat dispatches. The
`is_heartbeat` flag is dead data going forward.
1. `UPDATE runs SET task_id = NULL WHERE task_id IN (SELECT id FROM tasks WHERE is_heartbeat = 1)`
2. `DELETE FROM tasks WHERE is_heartbeat = 1` (synthetic rows, not real work)
3. Rebuild `tasks` without the `is_heartbeat` column (same defer-FK +
row-count-assert pattern as v35)
## Code cleanup
- `RunRecord.taskId: string | null`; `createRun` / `cancelRunForDeletion`
/ `finishRun` guard every `UPDATE tasks` path with a null-check.
- `TaskRecord.isHeartbeat` removed; every SELECT / filter / UI reference
dropped.
- Delete `acquireHeartbeatTask` / `findReusableHeartbeatTask` /
`cleanupDuplicateHeartbeatTasks` — dead after the constraint lifts.
- Delete `src/main/orchestration/heartbeat-task.ts` (pure workaround
constant file).
- `heartbeat.ts` creates runs with `taskId: null` when the agent has no
assigned work. Turn context already supports nullable task
(heartbeatFallbackSection); prompt surface unchanged.
- `validateTaskCreation` drops the `isHeartbeat` parameter — user-
authored + automation-authored tasks are never heartbeat.
- Renderer: `run.taskId ? taskMap.get(...) : undefined` in Dashboard /
RunCenter / RunDetail / RunQueue.
- Delete `tests/unit/heartbeat-coalescing.test.ts` (12 tests that
exercised the deleted DB methods).
- Drop 1 isHeartbeat-bypass test from `task-quality-gates.test.ts`.
## Grep verification
- `isHeartbeatTaskTitle src/` → 0
- `acquireHeartbeatTask src/` → migration comment only
- `is_heartbeat src/` → schema.ts migration history only
- `isHeartbeat src/` → 0
Tests: 578/578 (was 591 — delta is 13 tests that tested deleted code).
The earlier sweep cleaned the hot path (worker/runtime/automation/api-
server/ipc core — 59 sites). This pass finishes the deferred long tail:
main/* services, database/* CRUD modules, api-server/* routes, ipc-*
handlers, thread-integration, automation helpers, browser, skills.
Default strategy: catch (error) { logger.warn("[module] context:", ...) }
— preserve current behavior, make the failure visible instead of
silently hidden. Widened 3 logger interface signatures to include warn
where callers only passed info/error previously (thread-helpers,
host-environment-service, ipc-domain-common).
Legitimate boundaries left intact: JSON.parse on untrusted input, DNS
resolver no-records paths, explicit safe* helpers (safeJson, parseJson,
parseTriggerDetail), URL-parse predicates, and `<unserialisable>`
fallbacks inside the prompt-builder summarisers. Each kept catch now
either has a reason in context or is a documented safe* helper.
Tests adjusted only where test-constructed no-op loggers needed a warn
stub (message-dispatch, company-mode-switch, ipc-agent-graph-handlers).
With the earlier pass, AgentCompany no longer has silently-swallowing
catch blocks in main-process or renderer business code.
ZacharyZhang-NY