Is the Dev Implementation 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 Implementation work with Claude Code?

We tested it with Claude Code 2.x (agent harness) on Jul 13, 2026. Verdict: Works with setup. Both listed phases open by shelling out to `npx ai-devkit@latest lint --feature ` against a `.ai-devkit.json` / `docs/ai` project structure — tested standalone outside an ai-devkit-scaffolded repo, step 1 has nothing to run against and the phase stalls immediately.

What is the Dev Implementation SkillProof Score?

7.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 5/10, docs & honesty 3/5.

How do I install Dev Implementation?

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 Implementation 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 Implementation

Executes a feature's implementation plan task-by-task and checks the result against its design doc.

by codeaholicguy · codeaholicguy/ai-devkit

Works with setup

Install — copy the command Download source ↗

Test report

Verdict: Works with setup
Score: 7.2/10
Tested: Jul 13, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · 71cde7b

Both listed phases open by shelling out to `npx ai-devkit@latest lint --feature <name>` against a `.ai-devkit.json` / `docs/ai` project structure — tested standalone outside an ai-devkit-scaffolded repo, step 1 has nothing to run against and the phase stalls immediately.

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 5/10
Docs & honesty 3/5

What Dev Implementation does

Runs the AI DevKit lifecycle's implementation phase: builds a task queue from a planning doc, works through it with TDD and reuse checks, then compares the finished code against design/requirements docs and flags deviations. Triggers when a user wants to implement planned tasks, update implementation docs, verify code matches design, or run dev-lifecycle phases 5 and 7.

How to install Dev Implementation

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

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

Commands — how to trigger Dev Implementation

/dev-implementation Executes a feature's implementation plan task-by-task and checks the result against its design doc.

It also activates on plain-language prompts like these:

Work through the implementation plan for this feature task by task
Check if my finished code actually matches the design doc
Implement the next tasks in the planning doc using TDD

Frequently asked questions

Is the Dev Implementation 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 Implementation work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 13, 2026. Verdict: Works with setup. Both listed phases open by shelling out to `npx ai-devkit@latest lint --feature <name>` against a `.ai-devkit.json` / `docs/ai` project structure — tested standalone outside an ai-devkit-scaffolded repo, step 1 has nothing to run against and the phase stalls immediately.
What is the Dev Implementation SkillProof Score?: 7.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 5/10, docs & honesty 3/5.
How do I install Dev Implementation?: 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 Implementation 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.