lean-build

95 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By JuliusBrussee/caveman (GitHub) · coding · 118,803 stars · scanned at commit 3dc497a

Build feature work with high overbuilding risk. Use for new behavior, product slices, or integrations where repository reuse, strict scope, and an explicit stop condition matter.

Works with any agent that supports SKILL.md skills.

What this skill can do

Runs commands on your computer

The author does not mention this. It runs automatically when the plugin is installed. Expected for a coding skill.

Found in 5 places.

.claude-plugin/plugin.json, line 15"command": "command -v node >/dev/null 2>&1 || exit 0; HOOK_ROOT=$(printf %s \"${CLAUDE_PLUGIN_ROOT}\" | sed 's|^/\$[a-zA-Z]\$/|\\1:/|'); node \"$HOOK_ROOT/sr
.claude-plugin/plugin.json, line 27"command": "command -v node >/dev/null 2>&1 || exit 0; HOOK_ROOT=$(printf %s \"${CLAUDE_PLUGIN_ROOT}\" | sed 's|^/\$[a-zA-Z]\$/|\\1:/|'); node \"$HOOK_ROOT/sr
.claude-plugin/plugin.json, line 39"command": "command -v node >/dev/null 2>&1 || exit 0; HOOK_ROOT=$(printf %s \"${CLAUDE_PLUGIN_ROOT}\" | sed 's|^/\$[a-zA-Z]\$/|\\1:/|'); node \"$HOOK_ROOT/sr

Show 2 more

.claude-plugin/plugin.json, line 51"command": "command -v node >/dev/null 2>&1 || exit 0; HOOK_ROOT=$(printf %s \"${CLAUDE_PLUGIN_ROOT}\" | sed 's|^/\$[a-zA-Z]\$/|\\1:/|'); node \"$HOOK_ROOT/sr
hooks/hooks-cursor.json, line 6"command": "node \"${CURSOR_PLUGIN_ROOT}/src/hooks/caveman-host-session-start.js\" cursor",

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'lean-build' ] || [ -L ~/.agents/skills/'lean-build' ]; then echo 'A skill folder named lean-build already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/JuliusBrussee/caveman' "$d" && git -C "$d" checkout --quiet '3dc497a7f858c774d6e15b25e8c6120ef3a0eda8' -- 'skills/lean-build' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/lean-build' ~/.agents/skills/'lean-build' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'lean-build' ~/.claude/skills/'lean-build' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-10	`3dc497a`	95
2026-11-08	`1e91f13`	95
2026-11-07	`c310c9d`	95