charmbracelet/crush · internal/skills/builtin/crush-hooks/SKILL.md

crush-hooks skillA

crush-hooks is agent-read markdown (skill) from charmbracelet/crush: Use when the user wants to add, write, debug, or configure a Crush hook — gating or blocking tool calls, approving or rewriting tool input before execution, injecting context into tool results, or troubleshooting hook behavior in crush.json..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add charmbracelet/crush/crush-hooks@git:20260426.b9fdf72
Exact content
mdr add charmbracelet/crush/crush-hooks@sha256:a37fe6557b5f1142

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_7wrm3ejd3bp7ndux.svg)](https://markdownregistry.com/a/art_7wrm3ejd3bp7ndux)

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Versions

versioncommittedcommitsizeaudit
git:20260426.b9fdf72 latest2026-04-26 b9fdf72 7,289 BA view · diff
git:20260426.dc003bf2026-04-26 dc003bf 6,818 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (7289 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

charmbracelet/crush · 28,143 stars · license NOASSERTION · pushed 2026-09-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_7wrm3ejd3bp7ndux
GET https://markdownregistry.com/api/v1/resolve?ref=charmbracelet/crush/crush-hooks
GET https://markdownregistry.com/api/v1/blob/a37fe6557b5f11429e01687c9b908d0bdd647bd9182c458dab894555883cb414

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.