evolver SKILL.md skillA
evolver from stijnman/grok-custom-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add stijnman/grok-custom-skills/evolver@v1.2.1Pins v1.2.1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- stijnman/grok-custom-skills
- Path
.grok/skills/evolver/SKILL.md- Versions recorded
- 3
- Latest version
- v1.2.1, committed Aug 19, 2026
- First version recorded
- Jun 24, 2026
- Size
- 1,503 bytes
- Repository stars
- 14
- License
- MIT
Lightweight skill mutation helper for quick iterations. Use for: quick evolve, mutate skill, tweak skill, `skill-evolver`.
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
# Evolver ## When to Use - User says **quick evolve** or task matches this capability - User says **mutate skill** or task matches this capability - User says **tweak skill** or task matches this capability ## Workflow 1. Load the target SKILL.md and identify one narrowly scoped proposed edit. 2. Present the proposed change and expected effect; obtain explicit user approval before changing or saving the file. 3. After approval, apply the edit and validate the frontmatter. 4. Keep the change local unless the user separately authorizes a commit, publication, backup upload, or other external persistence. ## Integrations - `skill-evolver` - `evolution` - `hyper-skill-tester` ## Error Handling | Failure | Response | |---------|----------| | Invalid frontmatter | Preserve the broken draft, show the restore option from git or a local versioned backup, and wait for approval before restoring. | ## Gotchas - Prefer skill-evolver for major rewrites. ## Example **Input:** User request matching triggers above. **Output:** Structured result per workflow with integrations invoked as needed.
Read the whole file at its exact version.
How to install
mdr add stijnman/grok-custom-skills/evolver@sha256:2139303e19c9d0b8The line at the top of this page pins the label v1.2.1, 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_ig4d6ntvwicqtext)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jun 24, 2026 and Aug 19, 2026, about one every 28 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.2.1 latest | 2026-08-19 | e12dafc | 1,503 B | A | view · diff |
| v1.2.0 | 2026-08-14 | abe185a | 1,193 B | A | view · diff |
| v1.1.0 | 2026-06-24 | 5c9866b | 1,296 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 (1503 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
stijnman/grok-custom-skills · 14 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ig4d6ntvwicqtext GET https://markdownregistry.com/api/v1/resolve?ref=stijnman/grok-custom-skills/evolver GET https://markdownregistry.com/api/v1/blob/2139303e19c9d0b8b573e6dce7ea1d9654832e8fc5320d15ef13b2abc03685a4
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.