test-coverage-improver SKILL.md skillA
test-coverage-improver from onewave-ai/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add onewave-ai/claude-skills/test-coverage-improver@git:20260225.309ae7aPins git:20260225.309ae7a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- onewave-ai/claude-skills
- Path
test-coverage-improver/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260225.309ae7a, committed Feb 25, 2026
- Size
- 4,781 bytes
- Repository stars
- 421
- License
- MIT
Analyze test coverage gaps and generate tests to improve coverage. Use when improving test coverage, finding untested code, or writing missing tests.
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
# Test Coverage Improver
## Instructions
When improving test coverage:
1. **Run coverage report** to identify gaps
2. **Prioritize** critical/complex code paths
3. **Write tests** for uncovered code
4. **Verify coverage improved**
## Generate Coverage Report
```bash
# Jest
npx jest --coverage
# Vitest
npx vitest --coverage
# NYC (Istanbul) for any test runner
npx nyc npm test
# View HTML report
open coverage/lcov-report/index.html
```
## Coverage Targets
| Type | Minimum | Good | Excellent |
|------|---------|------|-----------|
| Lines | 70% | 80% | 90%+ |
| Branches | 60% | 75% | 85%+ |
| Functions | 70% | 80% | 90%+ |
| Statements | 70% | 80% | 90%+ |
## Test Templates
### Unit Test (Jest/Vitest)
```typescript
import { describe, it, expect, vi, beforeEach } from 'vitest';
import { calculateTotal, formatCurrency } from './utils';
describe('calculateTotal', () => {
it('should sum all item prices', () => {
const items = [
{ price: 10, quantity: 2 },
{ price: 5, quantity: 1 },
];
expect(calculateTotal(items)).toBe(25);
});
it('should return 0 for empty array', () => {
expect(calculateTotal([])).toBe(0);
});
…Read the whole file at its exact version.
How to install
mdr add onewave-ai/claude-skills/test-coverage-improver@sha256:1630dbf7abb5b217The line at the top of this page pins the label git:20260225.309ae7a, 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_3rggzei5wryi3r2k)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Feb 25, 2026.
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 (4781 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
onewave-ai/claude-skills · 421 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3rggzei5wryi3r2k GET https://markdownregistry.com/api/v1/resolve?ref=onewave-ai/claude-skills/test-coverage-improver GET https://markdownregistry.com/api/v1/blob/1630dbf7abb5b217456da08715e981dea474f9bbb9ac006b2d0bcb2f3fe3d18b
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.