Understand-Anything MCP Server

This MCP Server bridges Egonex-AI/Understand-Anything with Claude Desktop and other MCP clients, giving LLMs native access to full-codebase structural graphs, architecture analysis, and CI/CD validation to prevent breaking changes.

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Related MCP server: CodeGraphMCPServer

Features

Most code intelligence tools tell your agent what's connected. ua-mcp tells your agent what it's allowed to change — and stops it when it shouldn't.

• Advanced Context Analysis: Export targeted contexts or the full graph for advanced LLM reasoning.

• Open-source with Premium Tiers: Free essential features, with advanced capabilities for Pro users.

How it works

1. Your AI agent decides it wants to modify a critical file (e.g., src/auth.ts).

2. The agent automatically triggers ua_precheck before making the edit.

3. The server analyzes the graph to determine the "blast radius" and checks it against your rules.

4. If the blast radius is too large or violates a rule, an Elicitation Prompt interrupts the agent, asking it to stop and ask for your explicit confirmation before proceeding.

Configuration Rules (.ua-rules.json)

You can define specific boundaries in a .ua-rules.json file in the root of your workspace to dictate what the LLM is allowed to touch.

{
  // Understand-Anything Architectural Rules
  // Define constraints that agents and developers must respect.
  "rules": [
    {
      "id": "no-ui-db-import",
      "description": "UI layer must never import database layer directly",
      "from_pattern": "src/ui/**",
      "to_pattern": "src/db/**",
      "severity": "error"
    },
    {
      "id": "auth-required-for-payments",
      "description": "Payment modules must always be reachable from auth",
      "requires_path_through": "src/auth/**",
      "for_pattern": "src/payments/**",
      "severity": "error"
    }
  ]
}

Quick Start

Install the server globally:

npm install -g ua-mcp

Claude Desktop Configuration

Add the following to your Claude Desktop config file (usually ~/Library/Application Support/Claude/claude_desktop_config.json on macOS or %APPDATA%\Claude\claude_desktop_config.json on Windows):

{
  "mcpServers": {
    "understand-anything": {
      "command": "npx",
      "args": ["-y", "ua-mcp"],
      "env": {
        "UA_PROJECT_PATH": "/path/to/your/project",
        "UA_LICENSE_KEY": "your_license_key_here"
      }
    }
  }
}

Available Tools & Tiering

The Understand-Anything MCP Server operates on a tiered licensing model.

Core Tools (Free Tier)

Available out of the box with no license required.

• ua_precheck: Pre-flight architectural risk check (10 checks/day, default critical-path rules only)

• ua_status: Returns MCP health status.

• ua_scan: Forces a re-scan of the workspace.

• ua_graph_summary: Returns aggregated node/edge statistics.

• ua_architecture_report: Groups files by top-level modules.

• ua_dependency_report: Identifies files with the most incoming dependencies (fan-in).

• ua_explain: Retrieves 1-hop dependencies for a specific file.

• ua_onboarding_doc: Generates onboarding context.

Premium Tools (Pro Tier)

• ua_precheck: Unlimited pre-flight checks with configurable critical paths and .ua-rules.json enforcement

• ua_rules: Enforces custom .ua-rules.json boundaries.

• ua_rules_check: Validates the rules schema.

• ua_find_callers: Retrieves reverse dependencies up to 2 hops.

• ua_impact_analysis: Retrieves full transitive closure of reverse dependencies.

• ua_validate_graph: Checks the knowledge graph schema for corruption.

• ua_ci_check: Analyzes Git PR diffs for architectural impact.

Pricing

Get your license key:

• Pro - Monthly ($10)

• Pro - Lifetime ($50)

Troubleshooting

• Server fails to start: Ensure you have Node.js v18 or later installed.

• License key error: Verify your key in the .env file or Claude config matches the one on your dashboard.

• Path not found: Ensure UA_PROJECT_PATH is absolute or resolves correctly relative to where the server runs.

License

MIT License