- ensure_workers_table: new tables include host TEXT, pid BIGINT,
address TEXT; old tables gain them via _ensure_hostpid_columns
(PRAGMA column check, missing-only ALTER, old rows keep NULL,
never fabricates host/pid). SQLite and Postgres share this path
(PG via the db adapter's PRAGMA translation); POSTGRES_SCHEMA
deliberately still excludes workers, which is volatile heartbeat
data in UNMIGRATED_TABLES (adding it broke the P2 migration
alignment tests, verified and reverted).
- heartbeat/register: given host/pid/address refresh, omitted
values preserve the old row; address has no derived source.
Local worker passes host_name + own pid; HTTP heartbeat only
stores caller-supplied values, never the server's own.
- classify_stale_workers: kill only when age strictly exceeds the
threshold AND host matches local host AND pid is proven dead;
equal threshold, foreign host, missing pid, or live/unknown pid
are list_only. Classification only, never kills, never matches
by name/prefix, never touches infra containers.
SQLite REAL is 8-byte double, but Postgres REAL is 4-byte
float4 (~7 significant digits). Epoch seconds (10 digits) were
rounded to 128-second steps, so worker liveness ages were off
by up to +-64s and could even go negative (observed live on
the host: last_seen ahead of NOW() by 20s). New tables use
DOUBLE PRECISION; existing Postgres tables are upgraded only
when information_schema actually reports REAL, so the ALTER
does not run on every heartbeat (it would take an ACCESS
EXCLUSIVE lock each time). SQLite path is unchanged (its
REAL is already double precision).
Regression test asserts new tables use DOUBLE PRECISION.
Worker pool: workers table + register/heartbeat (heartbeat is
registration, no 404), GET /workers with alive (120s default),
POST /workers/heartbeat (X-API-Key, missing worker_id 400).
Tasks gain executor (local/docker/cloud, None = any worker);
worker claim filters by executor in pick_next and in the CAS
WHERE clause, CAS semantics unchanged; CloudExecutor _name
now correctly returns cloud, not local.
CloudExecutor: generic HTTP runner interface (endpoint from
explicit arg or CLOUD_RUNNER_ENDPOINT, auth header name only,
token value only from env into the request header, never into
logs/body/errors); no endpoint configured = explicit failure,
never silent downgrade. Vendor adapters (ECS/Cloud Run) are
out of scope, documented as such.
Auto PR: projects.auto_pr (0/1, create-time only, no PATCH
route exists); POST /tasks/{id}/pr (maintainer+ via
approve_merge) only for merged tasks (else 409); skip reasons
in order: auto_pr_disabled, no_worktree, no_remote, no_gh,
gh_not_authenticated — all return 200 with pr_skipped, task
stays merged, no push attempted; push/pr-create failure
returns 502 with step, task stays merged; success writes
pr_url/pr_number and audits pr_created. No default auto-push
from the worker. Remote URLs in errors are scrubbed of
userinfo; gh credentials are managed by gh itself, never
stored by the control plane.
Tests: host 27 pass, cloud 323 pass (8 skipped are
environment-dependent real-Postgres tests).
host