paperclip/doc/run-log-events.md

# Run-Log Events

Run-log events write to the `heartbeat_run_events` table
(`packages/db/src/schema/heartbeat_run_events.ts:6-20`). They are not
Paperclip Telemetry events, and they are not OpenTelemetry exports. A run-log
event needs no operator endpoint.

## Native PRP Run-Log Events

The hidden native coordinator writes each validated PRP event to the bound
run's existing event stream before it acknowledges the runner. The row keeps
the PRP `eventType`, source instance, source event ID, source sequence, protocol
schema version, and a SHA-256 digest of the canonical source envelope. Its
payload is `{ "prpEvent": <canonical PRP event> }`.

PostgreSQL JSONB cannot represent NUL (U+0000), which can occur in command
output such as Vite virtual-module paths. The run-event payload column uses a
lossless storage codec for these events: the JSONB projection renders NUL as
the literal `\u0000`, and the reserved `$paperclipRunEventJsonV1` field contains
the original serialized JSON as a doubly escaped string. Ordinary payloads
retain their existing representation. Drizzle reads restore the exact original
payload before replay, hash validation, redaction, or API presentation. SQL
queries can still inspect ordinary routing fields in the projection; raw SQL
readers of the whole payload must apply `decodeRunEventPayload`. The column
remains JSONB and requires no schema migration.

The writer locks the native `heartbeat_runs` row and allocates the existing
per-run `seq` cursor. A byte-equivalent retry reuses the first row; a changed
retry or source-sequence gap is rejected. Company, issue, agent, run, session,
and runner-source bindings must match the persisted native run. Bootstrap
tickets, reconnect leases, authentication proofs, encryption keys, and raw
credential material are never written to the run log.

These records remain run-log events. They do not create an OpenTelemetry or
Paperclip Telemetry export, and legacy adapters do not use this writer.

## Native Restart Recovery Run-Log Event

Paperclip writes a `native.recovery.transition` event for every native restart
classification and for graceful restart suspension. This immutable run-log
record lets operators reconstruct recovery decisions without exporting data to
Paperclip Telemetry or OpenTelemetry.

The payload contains the restart kind, recovery request id when one exists,
runner disposition, and the controller generation and provider attempt for a
claimed recovery. Live-runner adoption also records the runner PID, process
group, and process-start fingerprint. A non-claim disposition records a bounded
reason instead. Graceful suspension records the signal and confirms that it did
not create a retry run.

The event never includes bootstrap tickets, reconnect leases, authentication
proofs, encryption keys, environment variables, provider credentials, command
arguments, or an unsanitized stderr stream. Detailed failed-attempt diagnostics
remain in the bounded `native_run_finalizations.recovery_history` ledger.

## Native Local Process Stop Evidence

The server writes `native.local_process_stopped` in the same transaction that
clears a local run's process identity, after it verifies that its PID and process
group are absent. The payload contains only those process IDs. Remote process
IDs are never checked against the control-plane host.

The server writes `native.process_start_requested` before a backend can spawn,
and `native.process_identity_recorded` when it stores a new native process
identity. Either invalidates an earlier local stop receipt, including a crash
before the new PID callback. Continuation admission accepts only the latest
server-authored event among these three types; provider
source events cannot supply stop authority. These records stay in the local run
log and do not add Telemetry or OpenTelemetry data.

## Verified Local Codex Replacement Evidence

The server writes `native.stopped_text_turn_verified` in the same transaction
that schedules a fresh successor for a stopped local Codex run. It records the
runner and provider process identities, retained-state digests, provider thread
and turn IDs, and IDs of exactly receipted task-completion calls. The server first
checks the complete turn inventory, process-stop receipt, and execution binding.
Unknown actions or changed retained state prevent this event and replacement.

The record documents why the old execution can be retired. It does not make the
old session resumable, rewrite provider files, or authorize replay on its own.
It remains in the local run log and adds no Telemetry or OpenTelemetry export.

## Sandbox Startup Run-Log Event

Paperclip writes one `run.startup.step` event to the run log for each bring-up
step. This event is a run-log record, not a first-party telemetry event. The
generated telemetry contract does not cover it, so this section is its canonical
contract.

The event payload carries only three fields.

| Field | Type | Meaning |
| --- | --- | --- |
| `step` | string | The bring-up step name, for example `stage.sync`. |
| `durationMs` | number | The wall time of the step. A skipped step reports `0`. |
| `outcome` | string | The step outcome (`ok`, `skipped`, or `failed`). |

The event no longer carries the per-step round-trip count or the provider
duration fields. It dropped `roundTrips`, `providerExecMs`, `providerGetMs`,
`createRuntimeMs`, and `ensureSessionMs`. The startup spans in
[`doc/observability.md`](observability.md) carry that detail now. The
`sandbox.exec` child spans hold the round-trip and provider durations. The
`acp.handshake` step span holds the create-runtime and ensure-session
sub-times.

To read the detailed timing, use the startup spans. The spans need an OTLP
endpoint. A run with no endpoint keeps only the three run-log fields above.

## Run Phase Timing Run-Log Event

Paperclip writes one `run.phase.timing` event to the run log for each
run-lifecycle phase. This event is a run-log record, not a first-party telemetry
event. The generated telemetry contract does not cover it, so this section is its
canonical contract. The producer is `emitRunPhaseTiming` in
`packages/adapter-utils/src/acpx-engine/startup-timing.ts`.

The event payload carries only three fields.

| Field | Type | Meaning |
| --- | --- | --- |
| `phase` | string | The run-lifecycle phase name from the closed allowlist below. |
| `durationMs` | number | The wall time of the phase. A negative or a non-finite value clamps to `0`. |
| `outcome` | string | The phase outcome (`ok` or `failed`). |

The `phase` field is one member of a closed, low-cardinality allowlist. The
producer drops any event whose phase name is outside this allowlist, so a
free-form label never reaches the run log. The allowlist has twelve phase names.

| Phase | Meaning |
| --- | --- |
| `place_workspace` | Place the run workspace. |
| `start_transport` | Start the agent transport. |
| `create_runtime` | Create the agent runtime. |
| `ensure_session` | Ensure the agent session exists. |
| `configure_session` | Configure the agent session. |
| `prepare_turn` | Prepare the turn. |
| `turn` | Run the turn. |
| `end_session` | End the agent session. |
| `settle_reuse` | Settle the session for reuse. |
| `stop_transport` | Stop the agent transport. |
| `sync_back` | Sync the workspace back. |
| `release_staging_lease` | Release the staging lease. |

The payload never carries a command, an argument, a path, an environment value,
or a raw identifier. The event rides the `ctx.onEvent` run-event bridge and is
run-log-only. It needs no OTLP endpoint.

## Related instrumentation

The sandbox duplex transport also writes one run-log event as one of its three
sinks. See the
[Sandbox Duplex Transport Instrumentation](observability.md#sandbox-duplex-transport-instrumentation)
section in the Observability contract.

## Execution recovery

Provider identity diagnostics remain in the local run log. They record the notification method, expected and received thread/turn identifiers, and the classification (root, verified descendant, stale, unrelated informational, or invalid authoritative). They omit the original provider payload and credentials. Repeated informational notices are bounded.

Recovery lifecycle events retain the original structured failure code, retry attempt, next retry time, and predecessor/successor identifiers. Durable status delivery uses an idempotency marker; delivery grants no provider authority. Failed publication is retried without repeating provider work. These records are not first-party Telemetry.

## Codex resume usage snapshot

The native runner retains a bounded local `harness.diagnostic` event with code
`codex_resume_usage_snapshot`. It identifies `thread/tokenUsage/updated` as
`resume_usage_snapshot`, retains the reported thread and completed-turn IDs,
and records cumulative usage counters. It does not include provider credentials
or message content. The event establishes the accounting baseline; it is not a
new billable usage receipt or a user-facing provider warning. Other provider
identity checks remain in force.