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Understand — Codebase Knowledge Graph Builder

Scans a repository and produces an interactive knowledge graph of its architecture, components and relationships.

Dev & CodingIntermediate★ 78,314⑂ 6,578AI score 8/10Last updated: Jul 30, 2026

What it does

Running /understand analyzes the current (or a specified) repository and writes .ua/knowledge-graph.json, the data file behind an interactive architecture dashboard. It follows a disciplined 7-phase pipeline:

  • Phase 0–1: resolve project root, handle git worktrees, generate .understandignore, scan files, languages and frameworks
  • Phase 1.5–2: compute semantic batches, then run up to 5 file-analyzer subagents in parallel to emit nodes/edges, with ID normalization, dedup and dangling-edge pruning
  • Phase 3–4: review the assembled graph and derive architectural layers using directory structure plus language/framework addenda
  • Supports incremental updates (re-analyzes only files changed since the last commit hash) and localized output via --language <code>.

Who it's for

  • Developers onboarding onto an unfamiliar or large codebase
  • Tech leads who need a dependency map of a legacy system
  • Anyone who wants a first draft of architecture documentation generated automatically

Examples

  1. /understand --full — force a complete rebuild of the knowledge graph for the current repo.
  2. /understand ../legacy-api --exclude "tests/*,docs/*" — analyze another directory while skipping tests and docs.
  3. /understand --auto-update — enable graph refresh on commit so only changed files are re-analyzed.

· · · Install guide · · ·

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the understand-anything-plugin/skills/understand folder from the GitHub repo Egonex-AI/Understand-Anything into my ~/.claude/skills/understand/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/Egonex-AI/Understand-Anything.git ~/understand-anything && cd ~/understand-anything && pnpm install && pnpm --filter @understand-anything/core build && mkdir -p ~/.claude/skills && cp -r understand-anything-plugin/skills/understand ~/.claude/skills/understand

⚠ This is a third-party skill. Check the source repository before installing.

  1. Prerequisites: install Node.js ≥ 22 and pnpm ≥ 10 (verify with node -v and pnpm -v).
  2. Clone the repo: git clone https://github.com/Egonex-AI/Understand-Anything.git ~/understand-anything
  3. Build the core package: cd ~/understand-anything && pnpm install && pnpm --filter @understand-anything/core build
  4. Install the skill: mkdir -p ~/.claude/skills && cp -r understand-anything-plugin/skills/understand ~/.claude/skills/understand
  5. Restart Claude Code, open the project you want to analyze, and run /understand.
  6. On first run the skill creates .ua/.understandignore and waits for your confirmation — review the exclusion list, then confirm to continue.
  7. For repos with more than 100 files, scope the run (e.g. /understand src) to keep analysis time and token usage manageable.
View source on GitHub ↗License: MIT