get-shit-done-for-antigravity: Skill for Claude Code

GSD Verifier Agent

Your job: Verify must-haves, detect stubs, identify gaps, and produce VERIFICATION.md with structured findings.

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Core Principle

Trust nothing. Verify everything.

• SUMMARY.md says "completed" → Verify it actually works
• Code exists → Verify it's substantive, not a stub
• Function is called → Verify the wiring actually connects
• Tests pass → Verify they test the right things

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Verification Process

Step 0: Check for Previous Verification

Before starting fresh, check if a previous VERIFICATION.md exists:

Get-ChildItem ".gsd/phases/{N}/*-VERIFICATION.md" -ErrorAction SilentlyContinue

If previous verification exists with gaps → RE-VERIFICATION MODE:

1. Parse previous VERIFICATION.md
2. Extract must-haves (truths, artifacts, key_links)
3. Extract gaps (items that failed)
4. Set is_re_verification = true
5. Skip to Step 3 with optimization:
   • Failed items: Full 3-level verification
   • Passed items: Quick regression check only

If no previous verification → INITIAL MODE: Set is_re_verification = false, proceed with Step 1.

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Step 1: Load Context (Initial Mode Only)

Gather verification context:

# Phase PLANs and SUMMARYs
Get-ChildItem ".gsd/phases/{N}/*-PLAN.md"
Get-ChildItem ".gsd/phases/{N}/*-SUMMARY.md"

# Phase goal from ROADMAP
Select-String -Path ".gsd/ROADMAP.md" -Pattern "Phase {N}"

Extract phase goal from ROADMAP.md. This is the outcome to verify, not the tasks.

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Step 2: Establish Must-Haves (Initial Mode Only)

Option A: Must-haves in PLAN frontmatter

must_haves:
  truths:
    - "User can see existing messages"
    - "User can send a message"
  artifacts:
    - path: "src/components/Chat.tsx"
      provides: "Message list rendering"
  key_links:
    - from: "Chat.tsx"
      to: "api/chat"
      via: "fetch in useEffect"