Agent Skill

Surgical Patch skill

surgical-patchJuliusBrussee/cavemanskills/surgical-patch/SKILL.md

Fix bugs and small behavior changes at the narrowest responsible layer. Use when regression proof, preserved surrounding behavior, and task-relevant tests matter.

114kApache-2.0

always on

34 tokname + description

once used

81 tokSKILL.md body

bundled files

11 KB

installs

100kskills.sh

Install the Surgical Patch skill

Skills CLI (Claude Code, Codex, Cursor and others)

npx skills add https://github.com/JuliusBrussee/caveman --skill surgical-patch

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/JuliusBrussee/caveman.git /tmp/caveman
mkdir -p ~/.claude/skills
cp -R /tmp/caveman/skills/surgical-patch ~/.claude/skills/surgical-patch

For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.

What it costs your context

Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.

When	What loads	Cost
Every session	Name and description	34 tok
When the agent uses it	The SKILL.md instructions	81 tok
Only if opened	1 bundled files (1 KB)	varies

Until it is used, surgical-patch costs about 40× less than the median MCP server we measured (1,362 tokens on every turn). Installing all 28 skills from JuliusBrussee/caveman would load 1,303 tokens of descriptions. Skills vs MCP study

Checks

Our checks found nothing to flag: it follows the Agent Skills specification's naming and size guidelines and doesn't pipe downloads into a shell.

Checked 2026-10-22 · method

What's inside

The headings of its SKILL.md. Read the full file on GitHub.

Surgical patch

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