crush-config

crush-config is a skill for Claude Code, Codex from charmbracelet/crush. It costs 50 tokens per session (3,724 once invoked), scanned A, original, no licence file.

A skill for configuring Crush, a coding agent, through its Bash-style crushrc file and JSON configuration. It covers providers, models, language servers, MCP servers, hooks, skills, permissions, and other behaviour.

In plain words
What is it for?
Setting up or changing Crush providers, models, language-server support, MCP connections, hooks, skills, permissions, and related options.
Why use it?
It helps identify where Crush settings belong and how to change them without guessing the configuration format.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Setting up or changing Crush providers, models, language-server support, MCP connections, hooks, skills, permissions, and related options.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/charmbracelet/crush/crush-config
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add charmbracelet/crush --skill crush-config
Clone the repo
git clone --depth 1 https://github.com/charmbracelet/crush

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for crush-config

README.md
[![agentmods](https://agentmods.dev/badge/skills/charmbracelet/crush/crush-config/github.svg)](https://agentmods.dev/skills/charmbracelet/crush/crush-config)
Your own site
<a href="https://agentmods.dev/skills/charmbracelet/crush/crush-config"><img src="https://agentmods.dev/badge/skills/charmbracelet/crush/crush-config/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for crush-config

Your own site · 80×15
<a href="https://agentmods.dev/skills/charmbracelet/crush/crush-config"><img src="https://agentmods.dev/badge/skills/charmbracelet/crush/crush-config.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,724 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 3 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Data Exfiltration · line 84
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 126
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Excessive Agency · line 285
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00050 $0.03724
Opus 5.5 $0.00020 $0.01490
Sonnet 5.5 $0.00010 $0.00745
Haiku 4.5 $0.00005 $0.00372

Measured 1mo ago against content hash b16bd1e56f30, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

crush-config scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

internal/skills/builtin/crush-config/SKILL.md · 381 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago Changed · +2 lines b16bd1e56f30
  2. 1mo ago Changed · +1 lines 4de2686b6b23
  3. 1mo ago First seen · 378 lines · 50 tokens per session scan A 919d9f3d01fb

Subscribe to this mod's changes

crush-config is a skill published in the GitHub repository charmbracelet/crush (28,669 stars, last pushed today), with no licence file. It adds 50 tokens to every session and 3,724 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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