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Official agent skill

Test Discipline

by microsoft in microsoft/waza

Update tests when changing APIs — no exceptions. An agent skill from microsoft/waza.

OfficialMITAuto-check passed

Install Test Discipline

skills CLI
$ npx skills add microsoft/waza --skill test-discipline -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install microsoft/waza test-discipline --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/microsoft/waza.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.copilot/skills/test-discipline .claude/skills/test-discipline && rm -rf skills-src

Use ~/.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/

Facts

Skill name
test-discipline
GitHub stars
1.4k
Used in
3 other repos
Token cost
~479 tokens
SKILL.md length
226 words
Files
1
Skills in repo
16
Repo updated
First seen
Licence
MIT

At a glance

Update tests when changing APIs — no exceptions. An agent skill from microsoft/waza.

  • SKILL.md covers Context, Patterns, Examples and Anti-Patterns
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Test Discipline is an agent skill from microsoft/waza, published by the product's own GitHub organization. Update tests when changing APIs — no exceptions

Its SKILL.md is about 480 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: CLI / Framework for Agent Skills - create, test, measure and improve skill quality and effectiveness. The licence is MIT.

Example prompts

  • “/test-discipline”

What it can do on your machine

Read from SKILL.md and the folder at commit 774df00. 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 Discipline loads about 479 tokens when it runs. Until then it costs about 16 tokens; SKILL.md has 226 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~16
When it runs · the whole SKILL.md, loaded when a task matches
~479

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 microsoft/waza at commit 774df00, republished under its MIT licence (© microsoft). 226 words, ~479 tokens.

Download SKILL.mdSave it as .claude/skills/test-discipline/SKILL.md (or your agent's skills folder).
name
test-discipline
description
Update tests when changing APIs — no exceptions
domain
quality
confidence
high
source
earned (Fenster/Hockney incident, test assertion sync violations)

Context

When APIs or public interfaces change, tests must be updated in the same commit. When test assertions reference file counts or expected arrays, they must be kept in sync with disk reality. Stale tests block CI for other contributors.

Patterns

  • API changes → test updates (same commit): If you change a function signature, public interface, or exported API, update the corresponding tests before committing
  • Test assertions → disk reality: When test files contain expected counts (e.g., EXPECTED_FEATURES, EXPECTED_SCENARIOS), they must match the actual files on disk
  • Add files → update assertions: When adding docs pages, features, or any counted resource, update the test assertion array in the same commit
  • CI failures → check assertions first: Before debugging complex failures, verify test assertion arrays match filesystem state

Examples

✓ Correct:

  • Changed auth API signature → updated auth.test.ts in same commit
  • Added distributed-mesh.md to features/ → added 'distributed-mesh' to EXPECTED_FEATURES array
  • Deleted two scenario files → removed entries from EXPECTED_SCENARIOS

✗ Incorrect:

  • Changed spawn parameters → committed without updating casting.test.ts (CI breaks for next person)
  • Added built-in-roles.md → left EXPECTED_FEATURES at old count (PR blocked)
  • Test says "expected 7 files" but disk has 25 (assertion staleness)

Anti-Patterns

  • Committing API changes without test updates ("I'll fix tests later")
  • Treating test assertion arrays as static (they evolve with content)
  • Assuming CI passing means coverage is correct (stale assertions can pass while being wrong)
  • Leaving gaps for other agents to discover

© microsoft, MIT. 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 .copilot/skills/test-discipline of microsoft/waza.

Open the folder on GitHubat commit 774df00

Used in 3 other repositories

We found 3 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 3 other GitHub owners. This page covers the copy in microsoft/waza, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Test Discipline 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.

Test Discipline compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Test Discipline this skillmicrosoft/waza1.4k3 repos~479Automated safety check: PassMIT
Openchamber Change Disciplineopenchamber/openchamber11k—~1.8kAutomated safety check: PassMIT
Make Changesremix-run/remix33k—~2.4kAutomated safety check: PassMIT
Orch Change Featureaffaan-m/ECC275k1 repos~420Automated safety check: PassMIT
Logistics Exception Managementaffaan-m/ECC275k4 repos~4.2kAutomated safety check: PassApache-2.0
Change Managementsickn33/agentic-awesome-skills47k2 repos~3.5kAutomated safety check: PassMIT

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Questions about Test Discipline

What does Test Discipline do?

Update tests when changing APIs — no exceptions. An agent skill from microsoft/waza. Test Discipline is an agent skill from microsoft/waza, published by the product's own GitHub organization.

How do I install Test Discipline in Claude Code?

Run `npx skills add microsoft/waza --skill test-discipline -a claude-code`. Or copy the skill folder (.copilot/skills/test-discipline in microsoft/waza) into .claude/skills/test-discipline in your project. Claude Code loads it when a task matches its description.

How do I install Test Discipline in Codex?

Run `npx skills add microsoft/waza --skill test-discipline -a codex`. Or copy the skill folder (.copilot/skills/test-discipline in microsoft/waza) into .agents/skills/test-discipline in your project. Codex loads it when a task matches its description.

Can I use Test Discipline 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 microsoft/waza --skill test-discipline -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-discipline, .gemini/skills/test-discipline, .github/skills/test-discipline and .opencode/skills/test-discipline in your project.

What does Test Discipline need to run?

SKILL.md names no scripts, command-line tools or credentials: Test Discipline is instructions for the agent only.

Does Test Discipline 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 Discipline 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 Discipline use?

Test Discipline 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 Test Discipline use?

About 479 tokens (SKILL.md is roughly 1.9k 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 Discipline?

Skills that share tags, products or a category with Test Discipline: Openchamber Change Discipline (openchamber/openchamber, 11k stars), Make Changes (remix-run/remix, 33k stars), Orch Change Feature (affaan-m/ECC, 275k stars) and Logistics Exception Management (affaan-m/ECC, 275k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Test Discipline?

microsoft (a GitHub organization, an official publisher) maintains it in microsoft/waza, which has 1,403 GitHub stars. The repository holds 16 skills in this directory. The repository was last updated on October 6, 2026.

Source: microsoft/waza on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.