Is the Nexus Mapper skill free?

Yes. The skill itself is free from Haaaiawd/Nexus-skills. SkillProof publishes the install command and an independent test verdict at no cost.

Does Nexus Mapper work with Claude Code?

It is in our test queue — we run every skill on real work before issuing a verdict, and this one is scheduled.

How do I install Nexus Mapper?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Nexus Mapper with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Nexus Mapper

Maps a codebase into a persistent knowledge base of architecture, systems, and hotspots.

by Haaaiawd · Haaaiawd/Nexus-skills

In test queue

Install — copy the command Download source ↗

Test report

Verdict: In test queue
Tested: —
Environment: Pending

In the test queue — machine-screened (validator 85/100, 162★ repo), full install/trigger/output test scheduled.

What Nexus Mapper does

Generate a persistent .nexus-map/ knowledge base that lets any AI session instantly understand a codebase's architecture, systems, dependencies, and change hotspots. Use when starting work on an unfamiliar repository, onboarding with AI-assisted context, preparing for a major refactoring initiative, or enabling reliable cold-start AI sessions across a team. Produces INDEX.md, systems.md,…

How to install Nexus Mapper

git clone https://github.com/Haaaiawd/Nexus-skills
cp -r Nexus-skills/skills/nexus-mapper ~/.claude/skills/nexus-mapper

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Nexus Mapper

/nexus-mapper Maps a codebase into a persistent knowledge base of architecture, systems, and hotspots.

It also activates on plain-language prompts like these:

Generate a nexus map of this repository
Build an AI-readable knowledge base before we refactor
Onboard me to this unfamiliar codebase with a nexus map

Frequently asked questions

Is the Nexus Mapper skill free?: Yes. The skill itself is free from Haaaiawd/Nexus-skills. SkillProof publishes the install command and an independent test verdict at no cost.
Does Nexus Mapper work with Claude Code?: It is in our test queue — we run every skill on real work before issuing a verdict, and this one is scheduled.
How do I install Nexus Mapper?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Nexus Mapper with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.