Project Lifecycle Skill

A steering-first, universal, cross-language, cross-ecosystem agent skill for modern software lifecycle maintenance. Compatible with Google Antigravity, Claude Code, Cursor, Windsurf, and any Agent Skills standard runtime.

Quick Install

1. Via npx (Project or Global)

# Install to current project (.agents/skills/project-lifecycle)
npx @l1r1h28/project-lifecycle install

# Or install globally (~/.gemini/config/skills/project-lifecycle)
npx @l1r1h28/project-lifecycle install --global

2. Via skills.sh

npx skills add L1r1h28/Sweep-agentcli-ide-cleaner

Directory Overview

.agents/skills/project-lifecycle/
├── SKILL.md
├── README.md
├── references/
│   ├── workflow-design-yaml.md      # How to architect & write GitHub Actions YAML files
│   ├── release-operations-guide.md  # How to operate git push, trigger releases, monitor & verify
│   ├── roadmap-maintenance.md
│   ├── changelog-readme.md
│   ├── ci-testing-next-steps.md
│   ├── structure-hygiene.md
│   ├── decisions-template.md
│   ├── semver-rules.md
│   └── commit-classification.md
└── scripts/
    ├── README.md
    ├── python/                      # Python 3 (Pure standard library, zero dependencies)
    │   ├── project_inventory.py
    │   ├── extract_release_notes.py
    │   ├── release_preflight.py
    │   └── ci_watch_github.py
    ├── node/                        # Node.js (Node 18+ ESM native fetch, zero dependencies)
    │   ├── project-inventory.mjs
    │   ├── extract-release-notes.mjs
    │   ├── release-preflight.mjs
    │   └── ci-watch-github.mjs
    └── powershell/                  # PowerShell (Windows / pwsh on Linux/Mac, zero dependencies)
        ├── Project-Inventory.ps1
        ├── Extract-ReleaseNotes.ps1
        ├── Release-Preflight.ps1
        └── Ci-Watch-Github.ps1

Summary of Reference Guides

1. workflow-design-yaml.md: Guidelines on writing and structuring .github/workflows/*.yml files (3-tier architecture: Fast CI, Binary Smoke Test, Two-Stage Release, matrix builds, artifact cleanup, token guard pattern).
2. release-operations-guide.md: Operational instructions for developers and agents executing releases (pre-release preflight verification, git commit/push, workflow_dispatch triggering, monitoring, post-release checks, failure rollback playbook).
3. roadmap-maintenance.md: Realistic status-based roadmap management, commit tracking, and task grouping.
4. changelog-readme.md: User-facing CHANGELOG format, multi-language README synchronization, and release download links.
5. ci-testing-next-steps.md: Cooperative GitHub Actions execution, log/artifact fetching, minimal bug fixing, and next-step planning.
6. structure-hygiene.md: Clean folder layout, script documentation rules, and gitignore safety.
7. decisions-template.md: Architecture Decision Record (ADR) template to capture structural decisions and prevent code anti-patterns.
8. semver-rules.md: Strict Semantic Versioning decisions (MAJOR, MINOR, PATCH).
9. commit-classification.md: Conventional Commits standard and atomic commit recommendations.

Multi-Language Utility Scripts

Located under scripts/ (see scripts/README.md):

• Python (scripts/python/): Universal zero-dependency Python 3 scripts suitable for all project types (Rust, Go, Python, C#, Java, Docker).
• Node.js (scripts/node/): Native ESM scripts suitable for JS/TS/Node ecosystems.
• PowerShell (scripts/powershell/): Native .ps1 scripts for Windows and PowerShell Core CI runners.