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builtin-skills

An AI agent skill from charmbracelet/crush, scored 59 out of 100 by code.

59/ 100C

Code score by group

  • Spec20/20
  • Description7/20
  • Procedure7/15
  • Done criteria4/15
  • Resources7/10
  • Scripts5/8
  • Safety7/7
  • Upkeep2/5

It loses the most points in Description (13), the group that checks whether the description says what the skill does and when to use it.

What the author says it does

Use when creating a new builtin skill for Crush, editing an existing builtin skill (internal/skills/builtin/), or when the user needs to understand how the embedded skill system works.

This is the description in the skill's own SKILL.md, written by its author, not by SkillCheatSheet.

Repository
charmbracelet/crush
Folder
.agents/skills/builtin-skills
License
Not identified by GitHub
GitHub stars
29,057
SKILL.md lines
43
Other files
0

Add builtin-skills to your agent

npx skills add charmbracelet/crush --skill builtin-skills

The command uses the open skills CLI. A skill is instructions and scripts your agent will follow, so read it first: open the folder on GitHub at the commit that was scored. GitHub identifies no license for this repository, so check its terms before you use it.

More skills from charmbracelet/crush

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  2. shell-builtins

    Use when creating a new shell builtin command for Crush (internal/shell/), editing an existing one, or when the user needs to understand how commands are intercepted in Crush's em…

    58C
  3. crush-config

    Use when the user needs help configuring Crush — writing crushrc (the Bash config format) or crush.json, setting up providers, models, LSPs, MCP servers, hooks, skills, permission…

    57C
  4. jq

    Use when the user needs to query, filter, reshape, extract, create, or construct JSON data — including API responses, config files, log output, or any structured data — or when he…

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All skills in charmbracelet/crush

Scores come from a snapshot of 300 public GitHub repositories taken on 12 November 2026. Every score is the result of fixed checks run by code; no AI is involved. How scoring works.