Test Guidelines
getsentry/sentry-react-native
Enforce Sentry React Native SDK test conventions for naming, structure, mocking, and fixtures with Jest.
Keeps tests honest: write them from the requirement, treat the code as the first suspect when a test is red, and refuse every way of faking a passing run.
Install Handsontable Test Writing Discipline
$ npx skills add handsontable/handsontable --skill test-writing-discipline -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install handsontable/handsontable test-writing-discipline --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/handsontable/handsontable.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/test-writing-discipline .claude/skills/test-writing-discipline && 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-writing-discipline" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/test-writing-discipline into .claude/skills/test-writing-discipline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-writing-discipline", 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/handsontable/handsontable/tree/develop/.claude/skills/test-writing-disciplineType 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 handsontable/handsontable --skill test-writing-discipline -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install handsontable/handsontable test-writing-discipline --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/test-writing-discipline .agents/skills/test-writing-discipline && 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-writing-discipline" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/test-writing-discipline into .agents/skills/test-writing-discipline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-writing-discipline", 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 handsontable/handsontable --skill test-writing-discipline -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install handsontable/handsontable test-writing-discipline --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/test-writing-discipline .cursor/skills/test-writing-discipline && 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-writing-discipline" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/test-writing-discipline into .cursor/skills/test-writing-discipline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-writing-discipline", 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/handsontable/handsontable.git --path .claude/skills/test-writing-discipline--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 handsontable/handsontable --skill test-writing-discipline -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install handsontable/handsontable test-writing-discipline --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/test-writing-discipline .gemini/skills/test-writing-discipline && 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-writing-discipline" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/test-writing-discipline into .gemini/skills/test-writing-discipline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-writing-discipline", 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 handsontable/handsontable test-writing-disciplineInstalls 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 handsontable/handsontable --skill test-writing-discipline -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/test-writing-discipline .github/skills/test-writing-discipline && 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-writing-discipline" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/test-writing-discipline into .github/skills/test-writing-discipline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-writing-discipline", 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 handsontable/handsontable --skill test-writing-discipline -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install handsontable/handsontable test-writing-discipline --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/test-writing-discipline .opencode/skills/test-writing-discipline && 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-writing-discipline" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/test-writing-discipline into .opencode/skills/test-writing-discipline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-writing-discipline", 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-writing-discipline- GitHub stars
- 22k
- Token cost
- ~1.3k tokens
- SKILL.md length
- 698 words
- Files
- 1
- Skills in repo
- 31
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Keeps tests honest: write them from the requirement, treat the code as the first suspect when a test is red, and refuse every way of faking a passing run.
- Works in 3 steps: Reproduce the bug as a test and watch it… → Apply the fix and watch the same test… → On a bugfix PR, name the spec that fails…
- Writing or reviewing tests for any Handsontable change
- SKILL.md covers Intent, not implementation, When a test is red, Bug fixes: failing test first and Cover what the change adds, plus 4 more sections
- Calls npx
What it does
Correct behavior is the goal, not a green run, and a test that asserts nothing or asserts the buggy output certifies the bug. The skill has the agent write each test from the requirement, ideally before the implementation, and when a test fails, check whether the code is wrong, the expectation mis-encoded the intent, or the requirement needs rereading. It sits on top of the Handsontable Playwright, legacy E2E and unit-testing skills.
A list of banned shortcuts covers deleting or loosening assertions, widening tolerances, `.skip` and `.only` variants, try/catch blocks that swallow failures, snapshots of buggy output and retries hiding a real intermittent failure. Weakening an assertion because of a race needs a filed ticket in the same pull request. A pass on retry or in isolation is not proof of determinism, so the agent repeats the spec across every theme and bundle leg. Bug fixes start with a failing test that fails for the right reason.
When your agent uses it
- Writing or reviewing tests for any Handsontable change
- A test turns red during feature work and you must decide what is wrong
- Fixing a bug test-first with a reproduction that fails for the right reason
- Reviewing a pull request that loosens or skips an assertion
Example prompts
- “This unit test fails after my change. Decide whether the code or the test is wrong before touching either.”
- “Write the failing test for the column header bug first, then fix it.”
- “Review this PR for tests that skip, loosen assertions or only snapshot the current output.”
Requirements
- A checkout of the Handsontable repository
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- Reproduce the bug as a test and watch it fail for the right reason (the missing behavior, not a typo or bad selector).
- Apply the fix and watch the same test pass.
- On a bugfix PR, name the spec that fails without the fix.
What it can do on your machine
Read from SKILL.md and the folder at commit fff66b1. 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
Shell commands in SKILL.md call:
npx
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npx, which can reach the network depending on how they are called.
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
Handsontable Test Writing Discipline loads about 1.3k tokens when it runs. Until then it costs about 154 tokens; SKILL.md has 698 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 698 words (~1,314 tokens).
“Correct behavior is the goal, not green. A test that asserts nothing, or asserts the buggy output, certifies the bug. Fix a red test by correcting the code or tightening the test. These rules apply on top of handsontable-playwright-e2e, handsontable-e2e-testing…”
- name
- test-writing-discipline
Files
Just SKILL.md in .claude/skills/test-writing-discipline of handsontable/handsontable.
Open the folder on GitHubat commit fff66b1
Compare with similar skills
Handsontable Test Writing 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Handsontable Test Writing Discipline this skillhandsontable/handsontable | 22k | — | ~1.3k | Automated safety check: Pass | Custom licence | |
| Test Guidelinesgetsentry/sentry-react-native | 1.8k | — | ~1.3k | Automated safety check: Pass | MIT | |
| Test Guidelinesgetsentry/sentry-dart | 873 | — | ~3.1k | Automated safety check: Pass | MIT | |
| Agent Harness Testing Methodologyhuiliyi37/Tianshu-harness | 1.1k | — | ~1k | Automated safety check: Notes | Apache-2.0 | |
| Feature Plannerserendipity1004/cc-feature-implementer | 176 | — | ~2.4k | Automated safety check: Pass | None | |
| TDD Bug Fixcursor/plugins | 10k | 8 repos | ~786 | Automated safety check: Pass | None |
Similar skills
- Official
- Official
Test Guidelines
getsentry/sentry-dart
Enforce Sentry Dart/Flutter SDK test conventions for naming, structure, and fixtures.
Agent Harness Testing Methodology
huiliyi37/Tianshu-harness
Guides an agent through probing an unfamiliar project's test setup, then choosing a red-light-first testing strategy matched to the task type.
Feature Planner
serendipity1004/cc-feature-implementer
Creates phase-based feature plans with quality gates and incremental delivery structure.
- Official
TDD Bug Fix
cursor/plugins
Fixes a bug with a failing regression test first when a cheap, focused test path exists, and falls back to the closest practical check when it does not.
Pest Testing
slimani-dev/muraqib
Tests applications using the Pest 4 PHP framework. An agent skill from slimani-dev/muraqib.
More from handsontable/handsontable
All 31 skills in this repoHandsontable Playwright E2E Tests
handsontable/handsontable
Guides writing and changing Playwright end-to-end tests for Handsontable using page objects, data-testid hooks and deterministic waits.
Handsontable Angular Wrapper Development
handsontable/handsontable
Guides changes to the @handsontable/angular-wrapper package: the HotTableComponent lifecycle, NgZone performance handling, settings services and the ng-packagr build.
BrowserStack Live Testing
handsontable/handsontable
Opens a live BrowserStack session on a real Android, iOS or desktop browser for a local or public URL, tunneling localhost through Cloudflare when needed.
Handsontable Changelog Entry
handsontable/handsontable
Decides whether a code change needs a changelog entry and creates the JSON file in .changelogs with the right type, framework and user-facing title.
Code Review Graph Navigator
handsontable/handsontable
Queries a pre-built, Tree-sitter-based code graph of the whole monorepo instead of grepping call chains, for exploring, debugging, refactoring or reviewing code.
Handsontable Coordinate Systems
handsontable/handsontable
Explains Handsontable's physical, visual and renderable row and column coordinate spaces and how to convert between them with IndexMapper, for debugging misplaced rows or columns.
Related
Categories
Questions about Handsontable Test Writing Discipline
What does Handsontable Test Writing Discipline do?
Keeps tests honest: write them from the requirement, treat the code as the first suspect when a test is red, and refuse every way of faking a passing run. Correct behavior is the goal, not a green run, and a test that asserts nothing or asserts the buggy output certifies the bug. The skill has the agent write each test from the requirement, ideally before the implementation, and when a test fails, check whether the code is wrong, the expectation mis-encoded the intent, or the requirement needs rereading.
When should I use Handsontable Test Writing Discipline?
Handsontable Test Writing Discipline fits situations like: writing or reviewing tests for any Handsontable change; A test turns red during feature work and you must decide what is wrong; fixing a bug test-first with a reproduction that fails for the right reason; reviewing a pull request that loosens or skips an assertion.
How do I install Handsontable Test Writing Discipline in Claude Code?
Run `npx skills add handsontable/handsontable --skill test-writing-discipline -a claude-code`. Or copy the skill folder (.claude/skills/test-writing-discipline in handsontable/handsontable) into .claude/skills/test-writing-discipline in your project. Claude Code loads it when a task matches its description.
How do I install Handsontable Test Writing Discipline in Codex?
Run `npx skills add handsontable/handsontable --skill test-writing-discipline -a codex`. Or copy the skill folder (.claude/skills/test-writing-discipline in handsontable/handsontable) into .agents/skills/test-writing-discipline in your project. Codex loads it when a task matches its description.
Can I use Handsontable Test Writing 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 handsontable/handsontable --skill test-writing-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-writing-discipline, .gemini/skills/test-writing-discipline, .github/skills/test-writing-discipline and .opencode/skills/test-writing-discipline in your project.
What does Handsontable Test Writing Discipline need to run?
Going by SKILL.md and its folder, Handsontable Test Writing Discipline needs the command-line tools its instructions call (npx). Our summary lists: A checkout of the Handsontable repository.
Does Handsontable Test Writing Discipline access the network?
SKILL.md contains no URLs. Its commands use npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Handsontable Test Writing 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 Handsontable Test Writing Discipline use?
Handsontable Test Writing Discipline has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Handsontable Test Writing Discipline use?
About 1.3k tokens (SKILL.md is roughly 5.3k 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 Handsontable Test Writing Discipline?
Skills that share tags, products or a category with Handsontable Test Writing Discipline: Test Guidelines (getsentry/sentry-react-native, 1.8k stars), Test Guidelines (getsentry/sentry-dart, 873 stars), Agent Harness Testing Methodology (huiliyi37/Tianshu-harness, 1.1k stars) and Feature Planner (serendipity1004/cc-feature-implementer, 176 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Handsontable Test Writing Discipline?
handsontable (a GitHub organization) maintains it in handsontable/handsontable, which has 22,060 GitHub stars. The repository holds 31 skills in this directory. The repository was last updated on October 8, 2026.
Source: handsontable/handsontable on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.