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agent-skill-creator/scenarios/SC-053-nfr-backwards-compatibility.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-053: Backwards Compatibility with v3.x Workflows

Covers: NFR-007 — Users can git pull and use immediately; no breaking changes to user-facing invocation Type: Happy Path

Given

  • A user has the v3.x version of agent-skill-creator installed via /plugin marketplace add ./
  • The user runs git pull to update to v4.0

When

  • The user invokes the meta-skill with: "Create a skill for data validation"

Then

  • The meta-skill works without errors
  • The 5-phase pipeline executes as before
  • The trigger phrases that worked in v3.x still work
  • The output is now v4.0 compliant (standard naming, no -cskill suffix) but the invocation did not break

Verification Method

Method: Manual test

Steps:

  1. From an existing v3.x installation, run: git pull
  2. Invoke the meta-skill with a standard trigger: "Create a skill for data validation"
  3. Verify the pipeline completes without errors
  4. Verify the generated output is v4.0 compliant

Expected evidence: No errors during or after git pull. The meta-skill activates with the same trigger phrases. The 5 phases complete. Generated skill is v4.0 compliant (no -cskill, <500 line SKILL.md, includes install.sh).