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agent-skill-creator/scenarios/SC-060-validation-frontmatter-structure.scenario.md
francylisboacharuto bac2b27bb8 feat: v4.0 Cross-Platform Modernization — Agent Skills Open Standard compliance 
BREAKING CHANGES:
- Remove -cskill suffix from all skill names (use standard kebab-case)
- Simplify marketplace.json to only official fields (fixes Issue #5)
- SKILL.md body must be <500 lines (progressive disclosure via references/)

New features:
- Cross-platform support for 8+ platforms (Claude Code, Copilot, Cursor, Windsurf, Cline, Codex CLI, Gemini CLI)
- scripts/install-template.sh: Auto-detect platform installer with --dry-run
- scripts/validate.py: Spec compliance checker for generated skills
- scripts/security_scan.py: Security scanner for hardcoded keys and dangerous patterns
- MIGRATION.md: v3.x to v4.0 migration guide
- 6 new reference files for progressive disclosure from lean SKILL.md

Key changes:
- SKILL.md: 4,116 → 272 lines with spec-compliant YAML frontmatter
- marketplace.json: Stripped to {name, plugins} only
- article-to-prototype-cskill/ → article-to-prototype/
- stock-analyzer-cskill/ → stock-analyzer/
- Export system integrates validation + security scanning
- README.md rewritten for all supported platforms
- Phase 5 pipeline outputs SKILL.md-first, spec-compliant skills

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-26 14:52:09 -03:00

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SC-060: Validation Checks Frontmatter Structure Completeness

Covers: FR-012 — Validation MUST check frontmatter structure Type: Failure

Given

  • A skill directory bad-frontmatter/ with SKILL.md that has malformed YAML: 
    ---
name: bad-frontmatter
description "missing colon after description"
---

When

  • The validation function validate_skill("bad-frontmatter/") is invoked

Then

  • The validation result valid is False
  • The errors list contains a message about invalid YAML frontmatter structure
  • The error is specific enough to help the user fix it

Verification Method

Method: Automated test

Steps:

  1. Create bad-frontmatter/ with malformed YAML in SKILL.md
  2. Call validate_skill("bad-frontmatter/")
  3. Assert result.valid is False
  4. Assert result.errors contains a message about YAML parsing failure

Expected evidence: valid: False. Error message like "Invalid YAML frontmatter: could not parse frontmatter block".