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Understand Domain

Extracts business domains, flows, and process steps from any codebase and renders them as an interactive flow graph.

Dev & CodingIntermediate★ 78,314⑂ 6,578AI score 7/10Last updated: Jul 30, 2026

What it does

/understand-domain analyzes a repository and produces domain, flow, and step knowledge — then visualizes it as a horizontal interactive graph in the Understand-Anything dashboard.

Two execution paths:

  • Derive — if a knowledge graph from /understand already exists (.ua/knowledge-graph.json), domain knowledge is inferred from it with no file scanning, which is fast and cheap.
  • Lightweight scan — otherwise a bundled Python preprocessor collects the file tree, entry points (HTTP routes, CLI commands, event handlers, cron jobs), per-file exports/imports and project metadata, feeding a compact context to a domain-analyzer subagent.
  • --full forces a fresh scan even when a graph exists.

It also handles real-world edge cases: git worktree detection with output redirected to the main repo root, and staleness preflight using project-scoped git diff so sibling monorepo commits don't falsely invalidate the graph.

Who it's for

  • Engineers inheriting a large, poorly documented codebase
  • Tech leads who need a business-level, not folder-level, system map
  • Monorepo teams clarifying domain boundaries
  • Anyone explaining system flows to PMs or QA with a diagram

Examples

  1. Onboarding: run /understand-domain on an e-commerce backend to get an "order created → payment authorized → inventory reserved → shipment created" flow graph.
  2. Pre-refactor survey: run /understand first, then /understand-domain to spot entangled domains and plan extraction order.
  3. Post-release refresh: after a large feature drop, run /understand-domain --full to regenerate the domain graph from scratch.

· · · 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-domain folder from the GitHub repo Egonex-AI/Understand-Anything into my ~/.claude/skills/understand-domain/.
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 && mkdir -p ~/.claude/skills && cp -r ~/understand-anything/understand-anything-plugin/skills/* ~/.claude/skills/

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

  1. Open a terminal and clone the plugin repo: git clone https://github.com/Egonex-AI/Understand-Anything.git ~/understand-anything
  2. Create the skills folder: mkdir -p ~/.claude/skills
  3. Copy the skills in: cp -r ~/understand-anything/understand-anything-plugin/skills/* ~/.claude/skills/
  4. Keep the cloned folder — this skill depends on the plugin's agent prompts and Python preprocessor. Optionally add export CLAUDE_PLUGIN_ROOT=~/understand-anything/understand-anything-plugin to your shell profile.
  5. Verify Python is available: python3 --version
  6. Start Claude Code inside the project you want to analyze and run /understand-domain. Running /understand first yields richer results.
  7. Output is written to .ua/domain-graph.json in the project, and the dashboard opens automatically.
View source on GitHub ↗License: MIT