TDD
pietheinstrengholt/rssmonster
Test-driven development. An agent skill from pietheinstrengholt/rssmonster.
测试驱动开发。当用户想以测试先行构建功能或修复 bug、提到 "red-green-refactor"，或想要集成测试时使用。
Install TDD
$ npx skills add devcxl/mattpocock-skills-zh --skill tdd -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install devcxl/mattpocock-skills-zh tdd --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/devcxl/mattpocock-skills-zh.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/engineering/tdd .claude/skills/tdd && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "tdd" agent skill from https://github.com/devcxl/mattpocock-skills-zh/tree/main/skills/engineering/tdd into .claude/skills/tdd/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tdd", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/devcxl/mattpocock-skills-zh/tree/main/skills/engineering/tddType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add devcxl/mattpocock-skills-zh --skill tdd -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install devcxl/mattpocock-skills-zh tdd --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/devcxl/mattpocock-skills-zh.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/engineering/tdd .agents/skills/tdd && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "tdd" agent skill from https://github.com/devcxl/mattpocock-skills-zh/tree/main/skills/engineering/tdd into .agents/skills/tdd/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tdd", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add devcxl/mattpocock-skills-zh --skill tdd -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install devcxl/mattpocock-skills-zh tdd --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/devcxl/mattpocock-skills-zh.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/engineering/tdd .cursor/skills/tdd && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "tdd" agent skill from https://github.com/devcxl/mattpocock-skills-zh/tree/main/skills/engineering/tdd into .cursor/skills/tdd/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tdd", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/devcxl/mattpocock-skills-zh.git --path skills/engineering/tdd--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add devcxl/mattpocock-skills-zh --skill tdd -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install devcxl/mattpocock-skills-zh tdd --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/devcxl/mattpocock-skills-zh.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/engineering/tdd .gemini/skills/tdd && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "tdd" agent skill from https://github.com/devcxl/mattpocock-skills-zh/tree/main/skills/engineering/tdd into .gemini/skills/tdd/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tdd", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install devcxl/mattpocock-skills-zh tddInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add devcxl/mattpocock-skills-zh --skill tdd -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/devcxl/mattpocock-skills-zh.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/engineering/tdd .github/skills/tdd && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "tdd" agent skill from https://github.com/devcxl/mattpocock-skills-zh/tree/main/skills/engineering/tdd into .github/skills/tdd/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tdd", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add devcxl/mattpocock-skills-zh --skill tdd -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install devcxl/mattpocock-skills-zh tdd --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/devcxl/mattpocock-skills-zh.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/engineering/tdd .opencode/skills/tdd && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "tdd" agent skill from https://github.com/devcxl/mattpocock-skills-zh/tree/main/skills/engineering/tdd into .opencode/skills/tdd/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tdd", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
tdd- GitHub stars
- 437
- Token cost
- ~376 tokens
- SKILL.md length
- 52 words
- Files
- 4
- Skills in repo
- 19
- Repo updated
- First seen
- Licence
- MIT
At a glance
测试驱动开发。当用户想以测试先行构建功能或修复 bug、提到 "red-green-refactor"，或想要集成测试时使用。
- Tasks that involve Test-driven development
- SKILL.md covers 好测试是什么, 接缝——测试放在哪里, 反模式 and 循环的规则
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
TDD is an agent skill from devcxl/mattpocock-skills-zh. 测试驱动开发。当用户想以测试先行构建功能或修复 bug、提到 "red-green-refactor"，或想要集成测试时使用。
Its SKILL.md is about 380 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files (for example `agents/openai.yaml`, `mocking.md` and `tests.md`).
It sits in Testing & QA, covering Test-driven development. The repository describes itself as: Matt Pocock 技能集的中文翻译版 — 地道中文，原汁原味的技术术语。基于 mattpocock/skills 复刻。每日中午12点钟同步. The licence is MIT.
When your agent uses it
- Tasks that involve Test-driven development
Example prompts
- “red-green-refactor”
- “/tdd”
What it can do on your machine
Read from SKILL.md and the folder at commit 15ac33e. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
TDD loads about 376 tokens when it runs. Until then it costs about 17 tokens; SKILL.md has 52 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from devcxl/mattpocock-skills-zh at commit 15ac33e, republished under its MIT licence (© devcxl). 52 words, ~376 tokens.
Download SKILL.mdSave it as
.claude/skills/tdd/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- tdd
- description
- 测试驱动开发。当用户想以测试先行构建功能或修复 bug、提到 "red-green-refactor"，或想要集成测试时使用。
测试驱动开发（Test-Driven Development）
TDD 是红 → 绿的循环。本技能是让这个循环产出值得保留的测试的参考：好测试是什么、测试放在哪里、反模式有哪些、循环的规则是什么。每一节在每一个循环中都适用——在循环之前和之中查阅它们，而不是之后。
探索代码库时，读 GLOSSARY.md（如果存在），让测试名称和接口词汇与项目的领域语言一致，并尊重你正在触碰的区域的 ADR。
好测试是什么
测试通过公共接口验证行为，而不是实现细节。代码可以彻底改变；测试不应该。好测试读起来像一份规格——"用户可以用有效购物车结账"精确地告诉你存在什么能力——而且因为它不关心内部结构，能在重构中存活。
示例见 tests.md，mocking 指南见 mocking.md。
接缝——测试放在哪里
**接缝（seam）**是你测试所在的公共边界：在不伸手进内部的情况下观察行为的接口。测试住在接缝处，绝不对着内部。
只在预先约定的接缝处测试。 写任何测试之前，写下要测试的接缝并与用户确认。没有测试写在未经确认的接缝上。你不可能测试所有东西——提前约定接缝，正是让测试精力落在关键路径和复杂逻辑上、而不是每个边界情况上的方法。
问："公共接口是什么，我们应该测试哪些接缝？" 为每个建议的 seam 附上一行说明，指出它能捕获什么、会漏掉什么。
当接口的形态本身存疑时——模块该有多深、接缝该在哪里、接口应该暴露什么——调用 Skill 工具并传入 "codebase-design" 来获得词汇。它是 module、interface、depth、seam、adapter、leverage、locality 这些词的共享来源，是一份供查阅的参考，而不是要跑的一场会话。
反模式
- 与实现耦合（Implementation-coupled） — mock 内部协作者、测试私有方法、或通过旁路渠道验证（查数据库而不是用接口）。识别信号：重构时行为没变，测试却挂了。
- 同义反复（Tautological） — 断言用与代码相同的方式重新计算期望值（
expect(add(a, b)).toBe(a + b)、以同样方式手工推导出的快照、断言常量等于自身），所以它构造性地通过，永远不可能与代码相左。期望值必须来自独立的真实来源——已知正确的字面量、手算的示例、规格。 - 水平切片（Horizontal slicing） — 先写完所有测试，再写所有实现。成批的测试验证的是想象出来的行为：你测试的是事物的形状而不是面向用户的行为，测试对真实变化变得不敏感，而且你在理解实现之前就锁定了测试结构。改用垂直切片——一个测试 → 一个实现 → 重复，每个测试都是一颗示踪子弹，对上一循环教会你的东西作出回应。
循环的规则
- 先红后绿。 先写会失败的测试，然后只写恰好能通过它的代码。不要预想未来的测试，也不要加投机性的功能。
- 一次一个切片。 每个循环一个接缝、一个测试、一个最小实现。
- 重构不是循环的一部分。 它属于审查阶段（见
code-review技能），不属于红 → 绿实现循环。
© devcxl, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 3 other files in skills/engineering/tdd of devcxl/mattpocock-skills-zh.
- SKILL.md
- agents/openai.yaml
- mocking.md
- tests.md
Open the folder on GitHubat commit 15ac33e
Compare with similar skills
TDD next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| TDD this skilldevcxl/mattpocock-skills-zh | 437 | — | ~376 | Automated safety check: Pass | MIT | |
| TDDpietheinstrengholt/rssmonster | 564 | 30 repos | ~906 | Automated safety check: Pass | MIT | |
| TDD WorkflowhellangleZ/burn-in-cceverywhere-ralph | 112 | 11 repos | ~2.4k | Automated safety check: Pass | None | |
| TDDsanity-io/sanity | 6.4k | 20 repos | ~1k | Automated safety check: Pass | MIT | |
| Test Driven Developmentfarm-fe/farm | 5.6k | 51 repos | ~2.5k | Automated safety check: Pass | MIT | |
| Tapd Story PipelineTencentBlueKing/bk-bcs | 840 | — | ~2.6k | Automated safety check: Pass | Custom licence |
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Related
Categories
Questions about TDD
What does TDD do?
测试驱动开发。当用户想以测试先行构建功能或修复 bug、提到 "red-green-refactor"，或想要集成测试时使用。. TDD is an agent skill from devcxl/mattpocock-skills-zh.
When should I use TDD?
TDD fits situations like: tasks that involve Test-driven development.
How do I install TDD in Claude Code?
Run `npx skills add devcxl/mattpocock-skills-zh --skill tdd -a claude-code`. Or copy the skill folder (skills/engineering/tdd in devcxl/mattpocock-skills-zh) into .claude/skills/tdd in your project. Claude Code loads it when a task matches its description.
How do I install TDD in Codex?
Run `npx skills add devcxl/mattpocock-skills-zh --skill tdd -a codex`. Or copy the skill folder (skills/engineering/tdd in devcxl/mattpocock-skills-zh) into .agents/skills/tdd in your project. Codex loads it when a task matches its description.
Can I use TDD in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add devcxl/mattpocock-skills-zh --skill tdd -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/tdd, .gemini/skills/tdd, .github/skills/tdd and .opencode/skills/tdd in your project.
What does TDD need to run?
SKILL.md names no scripts, command-line tools or credentials: TDD is instructions for the agent only.
Does TDD access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is TDD safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does TDD use?
TDD is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does TDD use?
About 376 tokens (SKILL.md is roughly 1.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to TDD?
Skills that share tags, products or a category with TDD: TDD (pietheinstrengholt/rssmonster, 564 stars), TDD Workflow (hellangleZ/burn-in-cceverywhere-ralph, 112 stars), TDD (sanity-io/sanity, 6.4k stars) and Test Driven Development (farm-fe/farm, 5.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains TDD?
devcxl (a GitHub user) maintains it in devcxl/mattpocock-skills-zh, which has 437 GitHub stars. The repository holds 19 skills in this directory. The repository was last updated on October 7, 2026.
Source: devcxl/mattpocock-skills-zh on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.