Code Understand

by Ar9av

Code Understand is an AI Engineering skill for Claude Code, published by Ar9av in obsidian-wiki.

3.2K stars322 forkson Ar9av/obsidian-wikiAdded 2026/08/17+1% in starsRepository updated 2026/08/17

View source on GitHub Download repo ZIP

agent-skillsbrainknowledge-basellm-toolsobsidianobsidian-brainwiki

Install in seconds

Install Code Understand

Copy Code Understand into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/Ar9av/obsidian-wiki/tree/main/.skills/code-understand ~/.claude/skills/code-understand

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/Ar9av/obsidian-wiki.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: .skills/code-understand/SKILL.md in Ar9av/obsidian-wiki
Installs to: ~/.claude/skills/code-understand
Collection: One of 25 skills cataloged from this repository
Category: AI Engineering — 2451 skills

What Code Understand does

Code Understand builds a ranked, citation-backed focus map of a codebase — the files and symbols an architecture actually hangs on — using CodeGraph when available or a dependency-free builtin extractor otherwise. Use it to orient in an unfamiliar or large codebase before editing.

Code Understand is cataloged under AI Engineering on DirSkills. Code Understand comes from a repository tagged agent-skills, brain, knowledge-base, llm-tools and obsidian.

Documentation

README

Excerpt

Code Understand — On-Demand Architecture Focus Map

You are about to work in a codebase you don't fully know yet. Instead of grepping around or reading files at random, ask the local extractor for a focus map: the ranked symbols the architecture hangs on, each with a file:line citation and evidence type. Read only what it points at — this is a map, not a substitute for reading the actual code it cites.

When to reach for this

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Code Understand

What else does Ar9av publish alongside Code Understand?
Code Understand is one of 25 skills that DirSkills catalogs from Ar9av/obsidian-wiki, the repository it ships in. Its siblings there include Claude History Ingest, Codex History Ingest and Copilot History Ingest. Each one is a separate skill with its own page in this directory, installs the same way Code Understand does, and is maintained by Ar9av in that same repository. The rest of the collection is listed on the Ar9av/obsidian-wiki page.
How does Code Understand compare to other AI Engineering skills?
Code Understand ranks #645 by stars among the 2451 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Code Understand against them. Open each page to compare what they document and how they install.