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test-driven-development

Write a failing test before changing production behavior.

Skill by tangf-ai

IndexedApache-2.0★ 6
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Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/tangf-ai-test-driven-development

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Write a failing test before changing production behavior.

Use cases: testing, writing

Reviews

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
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Secrets
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Install scripts
None found

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/test-driven-development

What's inside

Skill name
test-driven-development
Description
Write a failing test before changing production behavior.
License
Apache-2.0
Instructions
16 lines in SKILL.md · view on GitHub

Files (1)

  • SKILL.md

SKILL.md (first lines)

# Test-Driven Development

Use this skill when adding a feature, fixing a bug, or changing behavior.

## Process

1. Write one focused test for the new behavior.
2. Run it and confirm it fails for the expected reason.
3. Implement the smallest change that makes the test pass.
4. Run the focused test again.
5. Run the full test suite if the change affects shared behavior.

Do not treat a test that only passes after the implementation as proof that the
test would have caught the missing behavior.

From tangf-ai/mini-hermes, Apache-2.0.

More from tangf-ai/mini-hermes

Signals

Stars
6
Forks
0
Open issues
0
Last commit (this folder)
May 14, 2026 (5 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
Apache-2.0
Repository
github.com/tangf-ai/mini-hermes
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
GitHubgithub-graphql

More from tangf-ai

Cite this page

test-driven-development skill. Agent Mart. https://agentmart.dev/skills/tangf-ai-test-driven-development (last updated 2026-10-24)