tools SKILL.md skillA
tools from skillberry-ai/cap-evolve is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add skillberry-ai/cap-evolve/tools@git:20261015.ac1f1f4Pins git:20261015.ac1f1f4 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- skillberry-ai/cap-evolve
- Path
skills/capabilities/tools/SKILL.md- Versions recorded
- 7
- Latest version
- git:20261015.ac1f1f4, committed Oct 15, 2026
- First version recorded
- Jul 26, 2026
- Size
- 19,165 bytes
- Repository stars
- 66
- License
- Apache-2.0
Optimize an agent's OWN tool surface (tools it implements, not an external MCP server). Use when the agent mis-selects tools, fills arguments wrong, calls the same tool N times in a row, or has a confusing, redundant, or oversized toolset. Covers tool names and descriptions, parameter docs, tool schemas, handler code, function-calling accuracy, and adding or removing tools.
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
# Capability: tools (full control) This capability treats the agent's **entire tool surface as the optimizable artifact**. It applies when the agent *owns* its tools — it implements the handlers, defines the wire schema, and controls every caller — so names, descriptions, parameter docs, in-description examples, the JSON Schema, *and the implementation code* are all fair game. (When the tools come from an external server you can only re-describe, not re-implement: that is `mcp-tool`, whose policy is tightened to documentation-only edits.) ## What you can change here **The tool's documentation AND its return value are what the agent SEES — make both clear and recovery-oriented.** The doc surface (description, important-notes, per-param, error/`Raises` text, examples) drives *which* tool the model calls and *how* it fills the arguments; the return value (and especially the error text) steers the *next* turn. Confirm which parts of a docstring your runtime actually SENDS before writing into it — some frameworks discard whole sections, and guidance written into that void does nothing (`references/field-notes.md` §1). …
Read the whole file at its exact version.
How to install
mdr add skillberry-ai/cap-evolve/tools@sha256:d6a5ec65e46113a6The line at the top of this page pins the label git:20261015.ac1f1f4, 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_lyadvgcc5zisgkno)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between Jul 26, 2026 and Oct 15, 2026, about one every 13 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261015.ac1f1f4 latest | 2026-10-15 | ac1f1f4 | 19,165 B | A | view · diff |
| git:20261008.03e3727 | 2026-10-08 | 03e3727 | 19,108 B | A | view · diff |
| git:20260901.278a375 | 2026-09-01 | 278a375 | 18,679 B | A | view · diff |
| git:20260822.ba06760 | 2026-08-22 | ba06760 | 18,021 B | A | view · diff |
| git:20260822.d94fb33 | 2026-08-22 | d94fb33 | 49,864 B | A | view · diff |
| git:20260804.4bb97c4 | 2026-08-04 | 4bb97c4 | 45,040 B | A | view · diff |
| git:20260726.1a24604 | 2026-07-26 | 1a24604 | 44,676 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 (19165 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
skillberry-ai/cap-evolve · 66 stars · license Apache-2.0 · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lyadvgcc5zisgkno GET https://markdownregistry.com/api/v1/resolve?ref=skillberry-ai/cap-evolve/tools GET https://markdownregistry.com/api/v1/blob/d6a5ec65e46113a64124cfc2e842a95a493e1c13679f380361ec4447a69d994a
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 skillberry-ai/cap-evolve
Every file in skillberry-ai/cap-evolve