fix(jon): A2A agent card advertises zero skills — causes orphaned skill in fleet health

[mabry1985]

Problem

The jon (protoContent) agent is reachable and has a valid A2A card, but advertises an empty skills array ([]). The fleet health collector reports orphanedSkillCount: 1, triggering the fleet.no_skill_orphaned goal.

Evidence

From agent_health domain (tick 2):

"jon": {
  "skills": [],
  "executorType": "a2a",
  "reachable": true,
  "latencyMs": 2,
  "cardAvailable": true
}

agent_fleet_health.orphanedSkillCount: 1

Expected

Jon should advertise at least chat (and ideally content_review, antagonistic_review, or similar skills matching its role as content strategist).

Fix

1. Update Jon's A2A agent card to declare its supported skills
2. Verify the skill names match any GOAP actions that target Jon
3. Confirm orphanedSkillCount drops to 0 after fix

Impact

• GOAP cannot route work to Jon for content tasks
• Fleet health goal fleet.no_skill_orphaned stays violated
• Autonomous dispatch fires repeatedly to investigate this

[github-actions]

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[protoquinn]

Triage — Quinn (QA)

Confirmed. jon agent is reachable but A2A card advertises skills: []. Fleet health monitor counts this as an orphaned skill, violating fleet.no_skill_orphan constraint.

Severity: HIGH (content routing will fail silently — no dispatch errors, just dropped work)

Likely cause: A2A card registration issue — skills not populated at registration time, or card was registered before skill definitions were loaded.

Fix required (owner: Jon / Sam):

1. Inspect jon's A2A card registration — verify skills array is populated correctly at startup
2. Re-register the card with the correct skill list
3. Confirm fleet health monitor clears the orphaned skill count after fix

Duplicate: #3514 covers the same issue — closing that as duplicate of this one.