Close the final Phase-2 exit-criteria box: >=2 factories executing jobs in parallel
through one coordinator, proving the concurrency guarantees end-to-end. This is a
DEMO HARNESS over the existing runtime — agent-queue.sh and lib/fleet-client.sh are
unchanged (read + called, not modified).
demo/two-factory-demo.sh: starts two real `agent-queue.sh run` daemons (mac-1 +
ubuntu-1, separate queues/cwds) that compete ONLY through the coordinator, then
asserts: (a) no double-assign — each of 3 jobs executed by exactly one factory;
(b) fencing + reclaim — kill a factory mid-job, the reaper returns its job, the
survivor reclaims + completes it, and the dead worker's late/zombie report (stale
leaseEpoch) is FENCED (HTTP 409, never shipped); (c) parallelism — both factories
hold active jobs concurrently. Dual-mode: CI-safe stateful stub by default; live
platform-service when AQ_FLEET_API/AQ_FLEET_TOKEN set.
demo/coordinator-stub.sh: stateful, mkdir-lock-guarded, file-backed coordinator
implementing claim/lease/fence/renew/release + reaper-reclaim via the existing
AQ_FLEET_API_CMD seam — the selftest stub pattern extended with shared state so
>=2 processes coordinate through one coordinator.
demo/README.md: stub + real invocations, env knobs, what each guarantee proves,
what-to-watch guide.
selftest.sh: +3 headless stub-mode checks (existing 68 unchanged byte-for-byte ->
71 total green).
docs/GIGAFACTORY_ROADMAP.md: tick the §14 two-factory-demo box; annotate Phase-2
exit criteria; bump §0 Phase 2 to 80% (remaining: scheduler-core wiring [common-plat
PR #31], tracker-direct call, factory enrollment).
bash 3.2 + awk/sed/grep/pgrep only; mac+linux safe; no new runtime deps.
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