A help-desk gateway (inbox) fed by a built-in static connector, plus a responsibility (digest) that subscribes to the accepted-ticket set.

This shows the connector's three pieces in action — fetch (the static list) → extract (each ticket keyed by id) → stage (write the arrival into the gateway's truth before the wake) — and the durable idempotency cursor that dedups re-polls and survives restarts.

Offline (no key needed)

reactor doctor                 # sandbox none, IR absent, state-dir writable
reactor compile --check        # exits 1 (stale): recognized, not yet compiled

Live (needs OPENROUTER_API_KEY + @openai/agents + zod)

reactor compile                # compile the gateway + responsibility -> IR cache
reactor topology               # the compiled DAG (inbox -> digest)
reactor serve --http 8080      # boot the host; the static connector ingests the 3 tickets
# in another shell:
reactor receipts list          # see the gateway + digest receipts
reactor receipts cost          # cost rolled up by surprise_cause

Poll the gateway again and nothing re-ingests (the cursor deduped the 3 tickets); add a 4th item to reactor.yml and only that new ticket is staged.