Is the Dev Lifecycle skill free?

Yes. The skill itself is free from codeaholicguy/ai-devkit. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Dev Lifecycle SkillProof Score?

8.0/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 6/10, docs & honesty 4/5.

How do I install Dev Lifecycle?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Dev Lifecycle with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Dev Lifecycle

SDLC phase router for the ai-devkit CLI — requirements through review, gated by a live lint/skill-list check.

by codeaholicguy · codeaholicguy/ai-devkit

Works with setup

Install — copy the command Download source ↗

Test report

Verdict: Works with setup
Score: 8.0/10
Tested: Jul 13, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · df02b77

It's a router, not a doer: real behavior depends on ~10 sibling phase skills plus a live `npx ai-devkit` install and doc-scaffolding step; the CLI is a real, actively-published npm package (confirmed up to v0.47.0) but sandbox policy blocked executing it here, so the lint/phase-detection loop it claims could not be run end to end.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 6/10
Docs & honesty 4/5

What Dev Lifecycle does

Coordinates a chain of separate phase skills (requirements, design, planning, implementation, testing, review) through the external ai-devkit npm CLI, detects the current phase from project docs, and proposes the next phase for user approval. Triggers when the user wants to run or advance a project's full SDLC, not for isolated single-phase asks like 'write tests for X'.

How to install Dev Lifecycle

git clone https://github.com/codeaholicguy/ai-devkit
cd ai-devkit
mkdir -p ~/.claude/skills
cp -r skills/dev-lifecycle ~/.claude/skills/dev-lifecycle

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Dev Lifecycle

/dev-lifecycle SDLC phase router for the ai-devkit CLI — requirements through review, gated by a live lint/skill-list check.

It also activates on plain-language prompts like these:

Walk this project through requirements, design, planning and review
What's the next SDLC phase for this project based on the current docs
Run the full dev lifecycle on this feature from requirements to review

Frequently asked questions

Is the Dev Lifecycle skill free?: Yes. The skill itself is free from codeaholicguy/ai-devkit. SkillProof publishes the install command and an independent test verdict at no cost.
Does Dev Lifecycle work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 13, 2026. Verdict: Works with setup. It's a router, not a doer: real behavior depends on ~10 sibling phase skills plus a live `npx ai-devkit` install and doc-scaffolding step; the CLI is a real, actively-published npm package (confirmed up to v0.47.0) but sandbox policy blocked executing it here, so the lint/phase-detection loop it claims could not be run end to end.
What is the Dev Lifecycle SkillProof Score?: 8.0/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 6/10, docs & honesty 4/5.
How do I install Dev Lifecycle?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Dev Lifecycle with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.