---
id: "b4c8e2f1-6a3d-4e5b-9f0c-2d7e8a1b3c4d"
name: "Core Hub Stabilization Daily Check"
type: activity-definition
version: "1.0"
enabled: true
owner: core-hub
governance: core-hub
status: active
created: "2026-07-07"
trigger:
  type: cron
  cron_expression: "0 9 * * *"
  timezone: Europe/Berlin
  misfire_policy: skip
context_sources:
  - type: core-hub
    query: stabilization_check
    required: true
    params:
      source: activity-core
      closeout: false
      base_url: "https://hub.coulomb.social"
      window_start: "2026-07-03T00:00:00+00:00"
      window_end: "2026-07-10T17:35:00+00:00"
      min_widget_types: 26
      evidence_sinks:
        - type: state-hub-progress
          event_type: core_hub_stabilization_check
          author: activity-core
          workstream_id: a8d66822-e435-4b1e-ad81-37a298d1795e
          task_id: 16eb7ce3-b574-4667-a189-c14ff5d0502b
    bind_to: context.core_hub_stabilization_check
---

# ActivityDefinition: Core Hub Stabilization Daily Check

## Purpose

Scheduled hub-visible health gate for `CORE-WP-0007-T02` during the post-cutover
stabilization window (2026-07-03 → 2026-07-10). Complements the manual
`scripts/core_hub_stabilization_check.sh` script with fleet-side evidence in
State Hub progress.

## Trigger

Daily at 09:00 Europe/Berlin while the stabilization window is open. Runs
outside the window are recorded as `skipped` with
`reason=outside_stabilization_window`.

## Output Contract

- one State Hub progress event with `event_type: core_hub_stabilization_check`
- compact pass/fail detail for public production surface checks
- no LLM call and no direct workplan edits