# Ops run read projection

State Hub projects activity-core `ops_run` queue health for fleet visibility.
Activity-core remains the authority for run creation, claims, leases,
completion, failure, and expiry under ACT-ADR-005 and ACTIVITY-WP-0026.

## V1 contract

V1 is a cached **pull** projection. State Hub reads activity-core:

```text
GET {ACTIVITY_CORE_URL}/ops-runs?limit=200
X-Worker-Token: ${ACTIVITY_CORE_WORKER_TOKEN}
```

The credential is owned by the OpenBao/railiance-platform path and must be
injected at runtime. State Hub never persists or returns it.

The upstream fields consumed are:

| Upstream field | Projection field |
| --- | --- |
| `id` | `id` |
| `activity_definition_id` | `definition` |
| `target_repo` | `target_repo` |
| `state` | `state` |
| `claim_owner`, `lease_until`, `attempt` | `lease` |
| `updated_at` | `updated_at` |
| `result.error` or `last_error` | `last_error` |

State Hub exposes:

- `GET /ops-runs/summary`
- `/state/summary` field `ops_runs`

Both provide `open`, `claimed`, `failed_24h`, `stuck_open_or_claimed`, and a
bounded list of open/claimed/failed rows. There are deliberately no claim,
heartbeat, complete, fail, or expiry endpoints in State Hub.

## Cache and failure behavior

`OPS_RUN_PROJECTION_TTL_SECONDS` defaults to 15 seconds. A refresh failure
serves the last successful projection with `stale: true` and an `error` field.
Before the first successful read, the projection returns `available: false`;
State Hub summary and work-record APIs remain healthy.

`OPS_RUN_SLA_HOURS` defaults to 1 hour and classifies open or claimed runs older
than the threshold as stuck. This is an operator signal, not a state transition.

## Railiance and coulombcore boundary

Claims happen against activity-core on Railiance. State Hub on coulombcore only
pulls visibility through the configured private activity-core endpoint. If the
edge/tunnel path is unavailable, visibility may lag and the projection is marked
stale; operators should alert on stale/unavailable projection state rather than
moving claim authority into State Hub.