Requirements
rizsotto/Bear
Write, modify, or review a requirement file under docs/requirements -- pick the single owning file, keep the text contract-only, name IDs so they need no explanation, and verify cross-references and…
Find the untested code paths that actually matter, not just the coverage percentage.
Install Coverage Gaps
$ npx skills add Archive228/loopkit --skill coverage-gaps -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Archive228/loopkit coverage-gaps --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/Archive228/loopkit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/coverage-gaps .claude/skills/coverage-gaps && 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 "coverage-gaps" agent skill from https://github.com/Archive228/loopkit/tree/main/skills/coverage-gaps into .claude/skills/coverage-gaps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "coverage-gaps", 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/Archive228/loopkit/tree/main/skills/coverage-gapsType 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 Archive228/loopkit --skill coverage-gaps -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Archive228/loopkit coverage-gaps --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Archive228/loopkit.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/coverage-gaps .agents/skills/coverage-gaps && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "coverage-gaps" agent skill from https://github.com/Archive228/loopkit/tree/main/skills/coverage-gaps into .agents/skills/coverage-gaps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "coverage-gaps", 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 Archive228/loopkit --skill coverage-gaps -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Archive228/loopkit coverage-gaps --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Archive228/loopkit.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/coverage-gaps .cursor/skills/coverage-gaps && 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 "coverage-gaps" agent skill from https://github.com/Archive228/loopkit/tree/main/skills/coverage-gaps into .cursor/skills/coverage-gaps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "coverage-gaps", 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/Archive228/loopkit.git --path skills/coverage-gaps--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 Archive228/loopkit --skill coverage-gaps -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Archive228/loopkit coverage-gaps --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Archive228/loopkit.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/coverage-gaps .gemini/skills/coverage-gaps && 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 "coverage-gaps" agent skill from https://github.com/Archive228/loopkit/tree/main/skills/coverage-gaps into .gemini/skills/coverage-gaps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "coverage-gaps", 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 Archive228/loopkit coverage-gapsInstalls 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 Archive228/loopkit --skill coverage-gaps -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Archive228/loopkit.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/coverage-gaps .github/skills/coverage-gaps && 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 "coverage-gaps" agent skill from https://github.com/Archive228/loopkit/tree/main/skills/coverage-gaps into .github/skills/coverage-gaps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "coverage-gaps", 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 Archive228/loopkit --skill coverage-gaps -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Archive228/loopkit coverage-gaps --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Archive228/loopkit.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/coverage-gaps .opencode/skills/coverage-gaps && 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 "coverage-gaps" agent skill from https://github.com/Archive228/loopkit/tree/main/skills/coverage-gaps into .opencode/skills/coverage-gaps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "coverage-gaps", 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
coverage-gaps- GitHub stars
- 755
- Token cost
- ~207 tokens
- SKILL.md length
- 84 words
- Files
- 1
- Skills in repo
- 52
- Repo updated
- First seen
- Licence
- MIT
At a glance
Find the untested code paths that actually matter, not just the coverage percentage.
- Tasks that involve Test coverage
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Coverage Gaps is an agent skill from Archive228/loopkit. Find the untested code paths that actually matter, not just the coverage percentage. Use after adding tests.
Its SKILL.md is about 210 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 coverage. The repository describes itself as: 33 battle-tested skills + minimal .claude harness for any coding agent (Claude Code, Cursor, Codex, Gemini CLI). The licence is MIT.
When your agent uses it
- Tasks that involve Test coverage
Example prompts
- “/coverage-gaps”
What it can do on your machine
Read from SKILL.md and the folder at commit 5ae033e. 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
Coverage Gaps loads about 207 tokens when it runs. Until then it costs about 31 tokens; SKILL.md has 84 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 Archive228/loopkit at commit 5ae033e, republished under its MIT licence (© Archive228). 84 words, ~207 tokens.
Download SKILL.mdSave it as
.claude/skills/coverage-gaps/SKILL.md (or your agent's skills folder).- name
- coverage-gaps
- description
- Find the untested code paths that actually matter, not just the coverage percentage. Use after adding tests.
- when_to_use
- "improve coverage", after writing tests, pre-merge quality check
Coverage Gaps
Coverage % is a vanity metric. Hunt the gaps that bite:
- Error paths — the 500, the timeout, the empty/null input, the malformed payload. Almost always untested.
- Boundaries — 0, 1, max, off-by-one, empty collection.
- Branches — every
if/elseandcatchexercised, not just the happy line. - Concurrency / order — anything stateful tested in isolation AND in sequence. Skip tests that assert a constructor sets a property — worthless. Test behavior, not implementation. Output: the 3-5 highest-risk untested paths, ranked by blast radius, with the test to add.
© Archive228, 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 skills/coverage-gaps of Archive228/loopkit.
Open the folder on GitHubat commit 5ae033e
Compare with similar skills
Coverage Gaps 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 |
|---|---|---|---|---|---|---|
| Coverage Gaps this skillArchive228/loopkit | 755 | — | ~207 | Automated safety check: Pass | MIT | |
| Requirementsrizsotto/Bear | 6.5k | — | ~2k | Automated safety check: Pass | GPL-3.0 | |
| Crap Analysisardalis/RiverBooks | 134 | 2 repos | ~3.4k | Automated safety check: Pass | None | |
| Code Coverages3s-project/s3s | 311 | — | ~789 | Automated safety check: Pass | Apache-2.0 | |
| Project Statusbactopia/bactopia | 522 | — | ~787 | Automated safety check: Pass | MIT | |
| Check Coverageldayton/Dippy | 243 | — | ~403 | Automated safety check: Pass | MIT |
Similar skills
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ardalis/RiverBooks
Analyze code coverage and CRAP (Change Risk Anti-Patterns) scores to identify high-risk code.
Code Coverage
s3s-project/s3s
Measure and grow the line coverage of the s3s crate. An agent skill from s3s-project/s3s.
Project Status
bactopia/bactopia
Show a live snapshot of the Bactopia project state — component counts, GroovyDoc coverage, nf-test coverage, and structural issues.
Check Coverage
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Ensure comprehensive test coverage for a CLI handler. An agent skill from ldayton/Dippy.
Guarding Destructive Operations
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Related
Categories
Questions about Coverage Gaps
What does Coverage Gaps do?
Find the untested code paths that actually matter, not just the coverage percentage. Coverage Gaps is an agent skill from Archive228/loopkit. Find the untested code paths that actually matter, not just the coverage percentage.
When should I use Coverage Gaps?
Coverage Gaps fits situations like: tasks that involve Test coverage.
How do I install Coverage Gaps in Claude Code?
Run `npx skills add Archive228/loopkit --skill coverage-gaps -a claude-code`. Or copy the skill folder (skills/coverage-gaps in Archive228/loopkit) into .claude/skills/coverage-gaps in your project. Claude Code loads it when a task matches its description.
How do I install Coverage Gaps in Codex?
Run `npx skills add Archive228/loopkit --skill coverage-gaps -a codex`. Or copy the skill folder (skills/coverage-gaps in Archive228/loopkit) into .agents/skills/coverage-gaps in your project. Codex loads it when a task matches its description.
Can I use Coverage Gaps 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 Archive228/loopkit --skill coverage-gaps -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/coverage-gaps, .gemini/skills/coverage-gaps, .github/skills/coverage-gaps and .opencode/skills/coverage-gaps in your project.
What does Coverage Gaps need to run?
SKILL.md names no scripts, command-line tools or credentials: Coverage Gaps is instructions for the agent only.
Does Coverage Gaps 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 Coverage Gaps 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 Coverage Gaps use?
Coverage Gaps 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 Coverage Gaps use?
About 207 tokens (SKILL.md is roughly 828 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 Coverage Gaps?
Skills that share tags, products or a category with Coverage Gaps: Requirements (rizsotto/Bear, 6.5k stars), Crap Analysis (ardalis/RiverBooks, 134 stars), Code Coverage (s3s-project/s3s, 311 stars) and Project Status (bactopia/bactopia, 522 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Coverage Gaps?
Archive228 (a GitHub user) maintains it in Archive228/loopkit, which has 755 GitHub stars. The repository holds 52 skills in this directory. The repository was last updated on July 14, 2026.
Source: Archive228/loopkit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.