vitest SKILL.md skillB
vitest from paulrberg/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add paulrberg/agent-skills/vitest@git:20261005.b4addfbPins git:20261005.b4addfb in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- paulrberg/agent-skills
- Path
skills/vitest/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261005.b4addfb, committed Oct 5, 2026
- First version recorded
- Aug 10, 2026
- Size
- 2,056 bytes
- Repository stars
- 101
- License
- MIT
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
# Vitest Repository configuration, projects, setup, imports/globals, environments, aliases, test placement, and cleanup own the test contract. Inspect them and nearby tests before adding generic patterns. Do not add globals, jsdom, coverage, new setup, or browser mode by default. ## Workflow Define the behavior or regression. Test its observable public result. Mock system boundaries rather than the behavior under test. Follow local fixture and cleanup ownership. In Effect repositories, use established `@effect/vitest` conventions such as `it.effect`, Layers, and TestClock rather than generic replacements. For a bug fix, reproduce the failure before relying on a passing result when practical. Read [patterns](references/testing-patterns.md) for component, async, fixture, snapshot, tag, or browser questions. Read [mocking](references/mocking.md) for module, timer, spy, or global boundaries. Read [configuration](references/configuration.md) for projects, migration, coverage, or reporter selection. Read [troubleshooting](references/troubleshooting.md) for hangs, discovery, resolution, or flaky state. …
Read the whole file at its exact version.
How to install
mdr add paulrberg/agent-skills/vitest@sha256:a5534d77e2a5e73bThe line at the top of this page pins the label git:20261005.b4addfb, 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_dx63oxnwoscfukma)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Aug 10, 2026 and Oct 5, 2026, about one every 14 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261005.b4addfb latest | 2026-10-05 | b4addfb | 2,056 B | B | view · diff |
| git:20261001.8664d96 | 2026-10-01 | 8664d96 | 2,043 B | B | view · diff |
| git:20260915.56b7c32 | 2026-09-15 | 56b7c32 | 1,749 B | B | view · diff |
| git:20260822.23d7851 | 2026-08-22 | 23d7851 | 2,888 B | B | view · diff |
| git:20260810.bf10915 | 2026-08-10 | bf10915 | 3,016 B | B | view |
Audit of the latest version
- fail: Frontmatter declares a description
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Size between 200 bytes and 200 KB (2056 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
paulrberg/agent-skills · 101 stars · license MIT · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dx63oxnwoscfukma GET https://markdownregistry.com/api/v1/resolve?ref=paulrberg/agent-skills/vitest GET https://markdownregistry.com/api/v1/blob/a5534d77e2a5e73b86586de7c74a8b94759b6460c616c02616c282a6760c0494
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 paulrberg/agent-skills
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