Superpowers Test Driven Development
christopherarter/superpowers-reasonix
Writing or fixing any code?. An agent skill from christopherarter/superpowers-reasonix.
Test-first procedure for every behaviour change in Noodle. An agent skill from pdparchitect/noodle.
Install Test First Changes
$ npx skills add pdparchitect/noodle --skill test-first-changes -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install pdparchitect/noodle test-first-changes --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/pdparchitect/noodle.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/test-first-changes .claude/skills/test-first-changes && 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 "test-first-changes" agent skill from https://github.com/pdparchitect/noodle/tree/main/.agents/skills/test-first-changes into .claude/skills/test-first-changes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-first-changes", 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/pdparchitect/noodle/tree/main/.agents/skills/test-first-changesType 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 pdparchitect/noodle --skill test-first-changes -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install pdparchitect/noodle test-first-changes --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/pdparchitect/noodle.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/test-first-changes .agents/skills/test-first-changes && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "test-first-changes" agent skill from https://github.com/pdparchitect/noodle/tree/main/.agents/skills/test-first-changes into .agents/skills/test-first-changes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-first-changes", 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 pdparchitect/noodle --skill test-first-changes -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install pdparchitect/noodle test-first-changes --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/pdparchitect/noodle.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/test-first-changes .cursor/skills/test-first-changes && 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 "test-first-changes" agent skill from https://github.com/pdparchitect/noodle/tree/main/.agents/skills/test-first-changes into .cursor/skills/test-first-changes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-first-changes", 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/pdparchitect/noodle.git --path .agents/skills/test-first-changes--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 pdparchitect/noodle --skill test-first-changes -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install pdparchitect/noodle test-first-changes --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/pdparchitect/noodle.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/test-first-changes .gemini/skills/test-first-changes && 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 "test-first-changes" agent skill from https://github.com/pdparchitect/noodle/tree/main/.agents/skills/test-first-changes into .gemini/skills/test-first-changes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-first-changes", 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 pdparchitect/noodle test-first-changesInstalls 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 pdparchitect/noodle --skill test-first-changes -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/pdparchitect/noodle.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/test-first-changes .github/skills/test-first-changes && 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 "test-first-changes" agent skill from https://github.com/pdparchitect/noodle/tree/main/.agents/skills/test-first-changes into .github/skills/test-first-changes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-first-changes", 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 pdparchitect/noodle --skill test-first-changes -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install pdparchitect/noodle test-first-changes --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/pdparchitect/noodle.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/test-first-changes .opencode/skills/test-first-changes && 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 "test-first-changes" agent skill from https://github.com/pdparchitect/noodle/tree/main/.agents/skills/test-first-changes into .opencode/skills/test-first-changes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-first-changes", 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
test-first-changes- GitHub stars
- 141
- Token cost
- ~201 tokens
- SKILL.md length
- 93 words
- Files
- 1
- Skills in repo
- 8
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Test-first procedure for every behaviour change in Noodle. An agent skill from pdparchitect/noodle.
- Works in 5 steps: Write a test that exercises the specific… → Run it and see it fail. → Make the change. → …
- Tasks that involve Test-driven development
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Tasks that involve Failing and flaky tests
What it does
Test First Changes is an agent skill from pdparchitect/noodle. Test-first procedure for every behaviour change in Noodle. Use before fixing a bug, changing how code behaves, or acting on a diagnosis made by reading the code; covers the failing test, the fix, the two runs to report, and the CI-safety constraints on tests.
Its SKILL.md is about 200 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Testing & QA, covering Test-driven development and Failing and flaky tests. The licence is Apache-2.0.
When your agent uses it
- Tasks that involve Test-driven development
- Tasks that involve Failing and flaky tests
Example prompts
- “/test-first-changes”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Write a test that exercises the specific code and fails because of the problem.
- Run it and see it fail.
- Make the change.
- Run the same test and see it pass.
- Report both runs.
What it can do on your machine
Read from SKILL.md and the folder at commit 515f964. 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
Test First Changes loads about 201 tokens when it runs. Until then it costs about 70 tokens; SKILL.md has 93 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 pdparchitect/noodle at commit 515f964, republished under its Apache-2.0 licence (© pdparchitect). 93 words, ~201 tokens.
Download SKILL.mdSave it as
.claude/skills/test-first-changes/SKILL.md (or your agent's skills folder).- name
- test-first-changes
- description
- Test-first procedure for every behaviour change in Noodle. Use before fixing a bug, changing how code behaves, or acting on a diagnosis made by reading the code; covers the failing test, the fix, the two runs to report, and the CI-safety constraints on tests.
Behaviour changes are test-first
Do not change behaviour on the strength of reading the code.
- Write a test that exercises the specific code and fails because of the problem.
- Run it and see it fail.
- Make the change.
- Run the same test and see it pass.
- Report both runs.
A suspected cause that no test can reproduce is still a hypothesis; say so instead of changing code.
Tests must not depend on a harness account, a model, the network or timing, so that they also pass in CI.
© pdparchitect, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .agents/skills/test-first-changes of pdparchitect/noodle.
Open the folder on GitHubat commit 515f964
Compare with similar skills
Test First Changes 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 |
|---|---|---|---|---|---|---|
| Test First Changes this skillpdparchitect/noodle | 141 | — | ~201 | Automated safety check: Pass | Apache-2.0 | |
| Superpowers Test Driven Developmentchristopherarter/superpowers-reasonix | 102 | — | ~1.9k | Automated safety check: Pass | MIT | |
| Openspec Plus TDDelastic/terraform-provider-elasticstack | 210 | 1 repos | ~4.7k | Automated safety check: Pass | Apache-2.0 | |
| Fix BugMelbourneDeveloper/dart_node | 113 | 1 repos | ~709 | Automated safety check: Notes | None | |
| Evanflow Debugevanklem/evanflow | 418 | — | ~760 | Automated safety check: Pass | Custom licence | |
| TDDcodeaholicguy/ai-devkit | 1.6k | — | ~838 | Automated safety check: Pass | Apache-2.0 |
Similar skills
- Official
Openspec Plus TDD
elastic/terraform-provider-elasticstack
MANDATORY skill that activates whenever code is written to implement an OpenSpec change task.
Fix Bug
MelbourneDeveloper/dart_node
Fix a bug using test-driven development. An agent skill from MelbourneDeveloper/dart_node.
Evanflow Debug
evanklem/evanflow
Root-cause discipline for bugs, test failures, and unexpected behavior.
TDD
codeaholicguy/ai-devkit
AI DevKit · Test-driven development — write a failing test before writing production code.
TDD Workflows TDD Green
aiskillstore/marketplace
Implement the minimal code needed to make failing tests pass in the TDD green phase.
More from pdparchitect/noodle
All 8 skills in this repoVersion Bound Cleanup
pdparchitect/noodle
Gating migrations and clean-up code behind an update milestone.
Agents Md Symlink
pdparchitect/noodle
Every AGENTS.md must have a sibling CLAUDE.md symlink pointing to it.
UI Copy
pdparchitect/noodle
Rules for user-visible text and controls in the Noodle apps.
Helper Visibility
pdparchitect/noodle
Dock and app-switcher policy for Noodle helpers. An agent skill from pdparchitect/noodle.
Mint Release
pdparchitect/noodle
Procedure for minting or publishing a version of Noodle, Computer, Applet, Browser, Hub or the Computer images.
No Code Docs
pdparchitect/noodle
Code is documented only in the source. An agent skill from pdparchitect/noodle.
Related
Categories
Questions about Test First Changes
What does Test First Changes do?
Test-first procedure for every behaviour change in Noodle. An agent skill from pdparchitect/noodle. Test First Changes is an agent skill from pdparchitect/noodle. Test-first procedure for every behaviour change in Noodle.
When should I use Test First Changes?
Test First Changes fits situations like: tasks that involve Test-driven development; tasks that involve Failing and flaky tests.
How do I install Test First Changes in Claude Code?
Run `npx skills add pdparchitect/noodle --skill test-first-changes -a claude-code`. Or copy the skill folder (.agents/skills/test-first-changes in pdparchitect/noodle) into .claude/skills/test-first-changes in your project. Claude Code loads it when a task matches its description.
How do I install Test First Changes in Codex?
Run `npx skills add pdparchitect/noodle --skill test-first-changes -a codex`. Or copy the skill folder (.agents/skills/test-first-changes in pdparchitect/noodle) into .agents/skills/test-first-changes in your project. Codex loads it when a task matches its description.
Can I use Test First Changes 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 pdparchitect/noodle --skill test-first-changes -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/test-first-changes, .gemini/skills/test-first-changes, .github/skills/test-first-changes and .opencode/skills/test-first-changes in your project.
What does Test First Changes need to run?
SKILL.md names no scripts, command-line tools or credentials: Test First Changes is instructions for the agent only.
Does Test First Changes 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 Test First Changes 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 Test First Changes use?
Test First Changes is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Test First Changes use?
About 201 tokens (SKILL.md is roughly 804 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 Test First Changes?
Skills that share tags, products or a category with Test First Changes: Superpowers Test Driven Development (christopherarter/superpowers-reasonix, 102 stars), Openspec Plus TDD (elastic/terraform-provider-elasticstack, 210 stars), Fix Bug (MelbourneDeveloper/dart_node, 113 stars) and Evanflow Debug (evanklem/evanflow, 418 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Test First Changes?
pdparchitect (a GitHub user) maintains it in pdparchitect/noodle, which has 141 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on October 7, 2026.
Source: pdparchitect/noodle on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.