validation-contractlisted

# Validation Contract Skill ## Purpose Use this skill when a task needs explicit validation criteria before implementation. It turns goals, scope, acceptance criteria, API contracts, and runtime expectations into structured assertions that a Worker can implement against and a Validator can check independently. This skill is required for Mission Lite milestones and recommended for high-risk `/start-task` or `/ship` work. ## Modes ### CREATE Create a `validation_contract` JSON object from a task, feature, or milestone description. Inputs: - Mission or task ID - Feature or milestone scope - Relevant files or modules - Acceptance criteria - Public API or documentation impact - Runtime evidence needs, if any Output: ```json { "type": "validation_contract", "mission_id": "M-001", "task_id": "T-H25", "milestone_id": "MS-001", "scope": { "feature": "validation-contract-skill", "files": [ ".agent/skills/validation-contract/SKILL.md", "templates/en/.agent/skills/validation-contract/SKILL.md", "templates/zh/.agent/skills/validation-contract/SKILL.md" ] }, "assertions": [ { "id": "VC-001", "type": "docs", "assertion": "The skill defines CREATE, CHECK, and SUMMARIZE modes.", "evidence": ".agent/skills/validation-contract/SKILL.md", "blocking": true } ] } ``` ### CHECK Check an existing contract for completeness. Required checks: 1. `type` is `validation_contract`. 2. At least one of `mission_