Features validate

Skill Geun-Oh/personal-harness/skills/features-validate

Features.json Validator — Validates that feature definitions in features.json satisfy AI-DLC Phase 1 criteria (specificity, independence, verifiability, testability). Triggers on 'features validate', 'feature validation', 'feature definition check'.From its SKILL.md

Install

npx -y skills add Geun-Oh/personal-harness --skill features-validate

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

1 stars1 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

SKILL.md

2.4 KB, as published. Nobody here has run it

Features.json Validator

The core of AI-DLC Phase 1 (Requirements): validates that features.json entries satisfy "good feature definition" criteria.

Validation Criteria

Each feature entry is checked against 4 quality criteria:

1. Specificity

Does it include concrete, verifiable steps?
BAD: "Implement login"
GOOD: "Email/password-based login, JWT issuance, session cookie setup"

2. Independence

Can it be implemented and tested in isolation without depending on other features?
If a dependencies field is present, verify there are no circular dependencies

3. Verifiability

Does the steps field list concrete, verifiable steps?
Clear pass/fail conditions rather than vague criteria like "should work correctly"

4. Testability

Does the tests field specify concrete test file paths?
An empty tests field is treated as a failure

Expected features.json Structure

{
  "features": [
    {
      "id": "auth-login",
      "name": "Email/Password Login",
      "description": "Login with email and password to receive a JWT",
      "steps": [
        "Send email/password to POST /api/auth/login",
        "Return JWT token for valid credentials",
        "Set session token in response cookie",
        "Return 401 for invalid credentials"
      ],
      "tests": [
        "tests/auth/login.test.ts"
      ],
      "dependencies": [],
      "passes": false
    }
  ]
}

How to Run

Read features.json from the project root
Check each feature entry against the 4 criteria
Report results per entry

Output Format

## Features.json Validation Results

### auth-login: Email/Password Login
- [PASS] Specificity: 4 verification steps included
- [PASS] Independence: no external dependencies
- [PASS] Verifiability: all steps are verifiable
- [PASS] Testability: tests/auth/login.test.ts path specified

### Overall Summary
N of M features passed, K need improvement
Items needing improvement: ...

Notes

If features.json is absent, template creation is suggested
The passes field is the only field the agent is allowed to modify
JSON structural integrity is also checked