coverage-gap-finder SKILL.md skillA
coverage-gap-finder from skillmedev/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add skillmedev/skills/coverage-gap-finder@git:20261005.bea4ea5Pins git:20261005.bea4ea5 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- skillmedev/skills
- Path
skills/coverage-gap-finder/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261005.bea4ea5, committed Oct 5, 2026
- First version recorded
- Jul 5, 2026
- Size
- 6,655 bytes
- Repository stars
- 19
- License
- MIT
Produces a risk-ranked list of untested critical paths and branches from a real branch-coverage report crossed with git churn, naming the specific missing cases and the smallest test that buys the most safety. Use when someone says "we have 85% coverage but I don't trust it", "what should we test next", "audit the suite before this release", or "which coverage gaps actually matter". Do NOT use to prove existing assertions are strong - covered-but-unasserted lines are mutation-test-runner's…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Coverage Gap Finder Find the untested paths that would actually hurt, ranked by risk - never chase a line-coverage percentage. Coverage is necessary but not sufficient: a line can execute under test while nothing asserts its output, and a percentage says nothing about whether the uncovered 15% is dead config or the payment splitter. The costly mistake this skill prevents is a team burning a sprint raising 85% to 95% while the branch that corrupts money stays dark. ## Operating procedure ### Step 1: Gather inputs - The coverage report - and whether it includes branch coverage. If it is line-only, regenerate before anything else (Step 2). No report means no prescription. - Repo access for churn analysis, or at minimum the list of recently active files. - The domain's crown jewels: where money moves, auth decisions happen, data is deleted or migrated. If the user cannot name them, propose a list and label it a guess. - Release timeline, which sets how deep the ranked list must go. ### Step 2: Generate a real branch-coverage report …
Read the whole file at its exact version.
How to install
mdr add skillmedev/skills/coverage-gap-finder@sha256:d4d4df1122b52417The line at the top of this page pins the label git:20261005.bea4ea5, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_komlbgexac44kjcm)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jul 5, 2026 and Oct 5, 2026, about one every 46 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261005.bea4ea5 latest | 2026-10-05 | bea4ea5 | 6,655 B | A | view · diff |
| git:20260705.a28c4ce | 2026-07-05 | a28c4ce | 6,614 B | A | view · diff |
| git:20260705.acb5571 | 2026-07-05 | acb5571 | 6,654 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6655 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
skillmedev/skills · 19 stars · license MIT · pushed 2026-10-13 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_komlbgexac44kjcm GET https://markdownregistry.com/api/v1/resolve?ref=skillmedev/skills/coverage-gap-finder GET https://markdownregistry.com/api/v1/blob/d4d4df1122b52417b82d41493507ff946c804f5d9f8aa312b4dd51ed2d3f6e52
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.