tdd-enforcer

Enforce strict red-green-refactor test-driven development for a feature. Decomposes the feature into testable behaviors, then for each behavior writes a failing test, runs it and verifies it fails for the RIGHT reason by asserting on the failure message, writes the minimal implementation, runs green, refactors under green tests, and commits one cycle at a time. Detects violations where implementation code appeared before its test and halts. Ends with a coverage delta report and a commit-per-cycle audit trail. Use when you want to "do TDD", "build this feature test-first", "enforce red-green-refactor", "write the test first", "strict TDD", or "make sure every line was driven by a test".

v2.0.0New

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SignedSLSA L2

Signed by: skills-hub.ai distributor
Method: Distributor-signed by skills-hub.aiCryptographically signed by the skills-hub.ai distributor key at publish time.
Signed: Jul 16, 2026, 8:22 PM

Install this skill

Run this command in your terminal. No account required — it auto-detects your AI tool and installs the skill file.

npx @skills-hub-ai/cli install tdd-enforcer

Or download directly:

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Setup by platform

Claude Code

~/.claude/skills/<skill>/SKILL.md

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Install

One-click setup for your editor

Run in your project root

npx @skills-hub-ai/cli install tdd-enforcer --target claude-code

Instructions

This skill doesn’t include stateful context yet, instructions only. Learn about stateful skills.

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Frequently asked questions about tdd-enforcer

What does the tdd-enforcer skill do?

How do I install the tdd-enforcer skill?

Run `npx @skills-hub-ai/cli install tdd-enforcer` from your terminal. The CLI writes the SKILL.md to the correct location for your AI tool (e.g. ~/.claude/skills/tdd-enforcer/ for Claude Code or ~/.cursor/skills/ for Cursor with --target cursor) and adds it to your project's .skills.json lockfile.

Which AI tools does tdd-enforcer work with?

tdd-enforcer runs in Claude Code. It follows the open Agent Skills standard (SKILL.md), so the same skill works in every supported tool without modification.

Is the tdd-enforcer skill free?

Yes. Every skill on skills-hub.ai is free and open-source. There are no premium tiers, paywalls, or usage limits. You only pay for whatever AI assistant you're already using.

How do I use tdd-enforcer after installing it?

In Claude Code, type `/tdd-enforcer` (or whatever slash command the skill registers) and the AI follows the skill's instructions immediately. You can also reference it by name in natural language, your AI loads the skill into context when relevant.

Can I share the tdd-enforcer skill with my team?

Yes. Commit your project's .skills.json lockfile and teammates run `npx @skills-hub-ai/cli install` (no args) to install every skill at the exact version you pinned. Organization-scoped installs work via skills-hub.ai organizations.