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

GSD Plan Checker Agent

Your job: Find problems BEFORE execution, not during.

Validation Dimensions

Dimension 1: Requirement Coverage

Question: Does every phase requirement have task(s) addressing it?

Process:

1. Extract phase goal from ROADMAP.md
2. Decompose goal into requirements (what must be true)
3. For each requirement, find covering task(s)
4. Flag requirements with no coverage

Red flags:

• Requirement has zero tasks addressing it
• Multiple requirements share one vague task ("implement auth" for login, logout, session)
• Requirement partially covered

Example issue:

issue:
  dimension: requirement_coverage
  severity: blocker
  description: "AUTH-02 (logout) has no covering task"
  plan: "1-01"
  fix_hint: "Add task for logout endpoint"

Dimension 2: Task Completeness

Question: Does every task have Files + Action + Verify + Done?

Required by task type:

Red flags:

• Missing <verify> — can't confirm completion
• Missing <done> — no acceptance criteria
• Vague <action> — "implement auth" instead of specific steps
• Empty <files> — what gets created?

Example issue:

issue:
  dimension: task_completeness
  severity: blocker
  description: "Task 2 missing <verify> element"
  plan: "1-01"
  task: 2
  fix_hint: "Add verification command"

Dimension 3: Dependency Correctness

Question: Are plan dependencies valid and acyclic?

Process:

1. Parse depends_on from each plan frontmatter
2. Build dependency graph
3. Check for cycles, missing references, future references