test-skill

name	test-skill
description	Test-drive a skill by spawning one sub-agent per incomplete task in PRD.md. Each sub-agent executes the skill for the task's Test Case and judges output against its Evaluation Criteria.

Invocation: Test skill [SKILL-NAME] — reads PRD.md in the current working dir.

Shared files: test_log.txt (actual outputs + verdicts + fix recommendations).

Lead Agent (loop controller)

1. Read PRD.md → collect all tasks where Test Passed: false.
2. Spawn one Tester Sub-Agent per task in parallel via Task tool. Pass each: skill name, skill path, task N, task goal, test case input, evaluation criteria.
3. Wait for all. Read test_log.txt. Print summary: N passed, M failed.
4. If any failures: spawn Advisor Sub-Agent once. Wait. Then stop.

Sub-Agents (spawned via Task tool, general / mode: subagent)

Tester (parallelizable, once per task — do NOT use Task tool):

1. Read SKILL.md of the target skill. Understand its steps and expected outputs.
2. Execute the skill for the assigned test case input: follow SKILL.md steps directly, run any tools it requires. Do not skip steps.
3. Judge actual output against the evaluation criteria: PASS if criteria met, FAIL otherwise.
4. If PASS: set Test Passed: true for this task in PRD.md.
5. Append to test_log.txt: --- Task <N> ---\nInput: <input>\nActual: <output>\nVerdict: PASS|FAIL\nNotes: <notes>.
6. Stop.

Advisor (once, only if failures exist):

1. Read PRD.md and test_log.txt.
2. For each FAIL: identify root cause (wrong output, missing step, bad tool usage, etc.).
3. Append ## Fix Recommendations to test_log.txt with one concrete fix suggestion per failure.
4. Stop.

Stop Conditions

• All tasks evaluated + summary printed (+ advisor done if needed)
• Sub-agent fails repeatedly on same task → mark [ERROR] in test_log.txt, continue
• User cancels