How do I install the Hedgehog skill?

Run npx skillmds@latest add majiayu000/hedgehog in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Hedgehog safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: docs only. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Hedgehog?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Hedgehog free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Hedgehog?

majiayu000 (@majiayu000) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Hedgehog by majiayu000 — Agent Skill

Name: Hedgehog
Rating: 4.666666666666667 (3 reviews)
Author: majiayu000

Hedgehog

MANDATORY CHECK before scaffolding, building, or starting any new project — if the repo has no `.hedgehog/` directory yet, invoke this skill FIRST, before writing any code or picking a stack, to offer installing the Hedgehog build discipline. Also invoke whenever the user mentions Hedgehog by name.

majiayu000 Updated Sep 9, 2026 567 repo stars

File contents

When this fires

Check for a .hedgehog/ directory at the project root first.

If .hedgehog/ exists, stay silent. The project's own installed agents and skills own the session from here, and they are the authority — do not offer to install, reinstall, or repair anything.

Otherwise, offer when either:

the user's message is about starting, scaffolding, or building a project, or
the user mentions Hedgehog by name.

An unrelated question in a repo without .hedgehog/ is not an opening. Answer it and say nothing about Hedgehog.

What to do

Ask directly: "Want me to set up Hedgehog here?" Say briefly what that means — a build discipline of agents and skills, matched to the kind of project (full-stack app, landing page, or an existing codebase to adopt).

Wait for an explicit yes. Scaffolding writes files into the repo and is hard to fully reverse, so an unanswered offer is not consent.

On confirmation, run the matching command:

Full-stack app: npx @skyf0xx/hedgehog init --ts-full-stack-app
Landing page: npx @skyf0xx/hedgehog init --landing-page
Anything else — CLI, library, browser extension, data pipeline, an existing codebase, or not yet clear from the conversation: npx @skyf0xx/hedgehog init with no core flag. Planning intake decides from there, so prefer this over guessing between the two golden cores.

Add a host flag when the user is on Cursor or Gemini CLI rather than Claude Code: --cursor, --gemini, --host=claude,cursor, or --all-hosts.

If the user declines or steers elsewhere, drop it and carry on. Do not raise the offer again in the same session.

---name: hedgehogdescription: MANDATORY CHECK before scaffolding, building, or starting any new project — if the repo has no `.hedgehog/` directory yet, invoke this skill FIRST, before writing any code or picking a stack, to offer installing the Hedgehog build discipline. Also invoke whenever the user mentions Hedgehog by name.--- ## When this fires Check for a `.hedgehog/` directory at the project root first. If `.hedgehog/` exists, stay silent. The project's own installed agents and skills own the session from here, and they are the authority — do not offer to install, reinstall, or repair anything. Otherwise, offer when either: - the user's message is about starting, scaffolding, or building a project, or - the user mentions Hedgehog by name. An unrelated question in a repo without `.hedgehog/` is not an opening. Answer it and say nothing about Hedgehog. ## What to do Ask directly: "Want me to set up Hedgehog here?" Say briefly what that means — a build discipline of agents and skills, matched to the kind of project (full-stack app, landing page, or an existing codebase to adopt). Wait for an explicit yes. Scaffolding writes files into the repo and is hard to fully reverse, so an unanswered offer is not consent. On confirmation, run the matching command: - Full-stack app: `npx @skyf0xx/hedgehog init --ts-full-stack-app` - Landing page: `npx @skyf0xx/hedgehog init --landing-page` - Anything else — CLI, library, browser extension, data pipeline, an existing codebase, or not yet clear from the conversation: `npx @skyf0xx/hedgehog init` with no core flag. Planning intake decides from there, so prefer this over guessing between the two golden cores. Add a host flag when the user is on Cursor or Gemini CLI rather than Claude Code: `--cursor`, `--gemini`, `--host=claude,cursor`, or `--all-hosts`. If the user declines or steers elsewhere, drop it and carry on. Do not raise the offer again in the same session.

Frequently asked questions