supercov SKILL.md skillA

supercov from supercorp-ai/supercov is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add supercorp-ai/supercov/supercov@git:20260924.a545882

Pins git:20260924.a545882 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
supercorp-ai/supercov
Path
plugins/supercov/skills/supercov/SKILL.md
Versions recorded
2
Latest version
git:20260924.a545882, committed Sep 24, 2026
First version recorded
Sep 24, 2026
Size
1,660 bytes
Repository stars
156
License
MIT

Measures test coverage and code quality in a repository with the supercov CLI, and turns what it finds into small, focused tests or fixes. Use when the user asks to add or improve tests, find untested code or raise coverage, or find what to refactor. Works with JavaScript, TypeScript, Python, Ruby, Rust, Go, Java and Kotlin projects.

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

# Supercov

Supercov runs the project's own test command and changes no source, tests or configuration. `npx supercov docs <topic>` prints the guide for the installed version; read it for anything not shown here. Topics: `agent-loop`, `quality`, `supported-suites`, `troubleshooting`.

## Add a test

1. Measure the full suite: `npx supercov -- <test command>`, for example `npx supercov -- npm test`.
2. List targets with `npx supercov runs latest gaps --limit 5`, pick one, and inspect it with `npx supercov runs latest file <path>`.
3. Write one focused test. Change only tests unless the user asks otherwise.
4. Rerun the same command and report the test and the coverage before and after.

## Quality

- `npx supercov quality` ranks files by code smells, and `npx supercov quality patch` reports what a change introduced.
- It sends source files to TypeSafe using the `TYPESAFE_API_KEY` environment variable. A user who set the key has opted in, so run it without asking again. If the key is missing the command says so: tell the user how to set it, then answer from reading the code and say Supercov did not check it.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add supercorp-ai/supercov/supercov@sha256:6a9ee8e81c76f146

The line at the top of this page pins the label git:20260924.a545882, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_6ny75r4pqt2hnyir.svg)](https://markdownregistry.com/a/art_6ny75r4pqt2hnyir)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, all committed on Sep 24, 2026.

versioncommittedcommitsizeaudit
git:20260924.a545882 latest2026-09-24 a545882 1,660 BA view · diff
git:20260924.7d9652f2026-09-24 7d9652f 1,648 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (1660 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

GitHub

supercorp-ai/supercov · 156 stars · license MIT · pushed 2026-10-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_6ny75r4pqt2hnyir
GET https://markdownregistry.com/api/v1/resolve?ref=supercorp-ai/supercov/supercov
GET https://markdownregistry.com/api/v1/blob/6a9ee8e81c76f146d4bedd5f2c80e3b5d32f0b3125138322c05f0dcd0462a534

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.

More from supercorp-ai/supercov

supercov-security SKILL.md skill
supercorp-ai/supercov · plugins/supercov/skills/supercov-security/SKILL.md · Scans a repository's source for security vulnerabilities with the supercov CLI, pointing to the line of each finding…
git:20260924.a545882 · audit A · 156 stars

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