mcpbeat

Ac Criteria Validator

majiayu000/ac-criteria-validator

Validate acceptance criteria and feature completion. Use when checking if features pass, validating test results, verifying acceptance criteria, or determining feature completion status.

860 tokens
context cost
the whole folder, loaded on every use
2
files
instructions only
0
copies elsewhere
how many repositories repackaged it
532
stars on the repo
on the repository, not the skill itself

Install

one command, takes just this skill from the repository
npx skills add https://github.com/majiayu000/claude-skill-registry --skill ac-criteria-validator

What comes with it

804 bytes besides the instruction
metadata.json

The instruction itself

13 sections, as written by the author

AC Criteria Validator

Validate acceptance criteria and determine feature completion.

Purpose

Validates that implemented features meet their acceptance criteria, determining when passes can transition from false to true.

Quick Start

from scripts.criteria_validator import CriteriaValidator

validator = CriteriaValidator(project_dir)
result = await validator.validate_feature("auth-001")
print(result.passes)  # True/False
print(result.criteria_results)

Validation Result

{
  "feature_id": "auth-001",
  "passes": true,
  "criteria_results": [
    {
      "criterion": "Valid registration creates user",
      "passed": true,
      "evidence": "test_valid_registration passed",
      "method": "test_execution"
    },
    {
      "criterion": "Invalid email shows error",
      "passed": true,
      "evidence": "test_invalid_email passed",
      "method": "test_execution"
    }
  ],
  "test_summary": {
    "total": 5,
    "passed": 5,
    "failed": 0,
    "coverage": 87.5
  },
  "validated_at": "2024-01-15T10:30:00Z"
}

Validation Methods

Test Execution

  • Run associated test files
  • Check all tests pass
  • Verify coverage threshold
  • Capture test output

Code Analysis

  • Check implementation exists
  • Verify function signatures
  • Validate error handling
  • Check documentation

Manual Criteria

  • UI/UX requirements
  • Performance benchmarks
  • Security requirements
  • Accessibility standards

Validation Rules

validation:
  require_all_tests_pass: true
  minimum_coverage: 80
  require_no_lint_errors: true
  require_type_checks: true

  custom_rules:
    - name: "no_console_logs"
      pattern: "console\\.log"
      severity: "warning"

Workflow

  • Load: Get feature and criteria
  • Discover: Find related tests
  • Execute: Run test suite
  • Analyze: Check each criterion
  • Report: Return validation result

State Transition

CRITICAL: passes can ONLY transition false → true

Before validation:
  {"passes": false, "status": "in_progress"}

After successful validation:
  {"passes": true, "status": "completed"}

NEVER:
  {"passes": true} → {"passes": false}

Integration

  • Input: Feature from ac-state-tracker
  • Uses: ac-test-generator test files
  • Output: Validation for state update

API Reference

See scripts/criteria_validator.py for full implementation.

How to use it

Copy the folder

Take majiayu000/ac-criteria-validator from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.