Arbor

Graph-native intelligence for codebases.

Know what breaks before you break it.

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Table of Contents

• Why Arbor
• What you get
• Visual tour
• Quickstart
• Installation options
• MCP integration
• Language support
• Architecture and docs
• Git-aware CI workflows
• Release channels
• Contributing
• Contributors
• Security
• License

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Why Arbor

Most AI code tooling treats code as text retrieval.

Arbor builds a semantic dependency graph and answers execution-aware questions:

• If I change this symbol, what breaks?
• Who calls this function, directly and transitively?
• What is the shortest architectural path between these two nodes?

You get deterministic, explainable impact analysis instead of approximate keyword matches.

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What you get

• Blast radius analysis with confidence levels and role classification
• Graph-backed symbol resolution across files and language boundaries
• CLI + GUI + MCP bridge sharing the same analysis engine
• Incremental indexing for fast inner-loop development
• Git-aware checks for pull-request risk gates

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Visual tour

For a full-screen recording of the workflow, see media/recording-2026-01-13.mp4.

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Quickstart

# 1) Install Arbor CLI
cargo install arbor-graph-cli

# 2) Initialize in your repository
cd your-project
arbor setup

# 3) Explore impact before refactor
arbor refactor <symbol-name>

# 4) Optional: run git-aware checks
arbor diff
arbor check --max-blast-radius 30

# 5) Launch GUI
arbor gui

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Installation options

Use whichever channel fits your environment:

# Rust / Cargo
cargo install arbor-graph-cli

# Homebrew (macOS/Linux)
brew install Anandb71/tap/arbor

# Scoop (Windows)
scoop bucket add arbor https://github.com/Anandb71/arbor
scoop install arbor

# npm wrapper (cross-platform)
npx @anandb71/arbor-cli

# Docker
docker pull ghcr.io/anandb71/arbor:latest

No-Rust installers:

• macOS/Linux: curl -fsSL https://raw.githubusercontent.com/Anandb71/arbor/main/scripts/install.sh | bash
• Windows PowerShell: irm https://raw.githubusercontent.com/Anandb71/arbor/main/scripts/install.ps1 | iex

For pinned/versioned installs, see docs/INSTALL.md.

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MCP integration

Arbor includes a real MCP server via arbor bridge (stdio transport).

Claude Code quick install

claude mcp add --transport stdio --scope project arbor -- arbor bridge
claude mcp list

Multi-client setup

• Full guide: docs/MCP_INTEGRATION.md
• Ready templates: templates/mcp/
• Bootstrap scripts:
  • scripts/setup-mcp.sh
  • scripts/setup-mcp.ps1

Registry verification (authoritative)

• Registry name: io.github.Anandb71/arbor
• Official API lookup: https://registry.modelcontextprotocol.io/v0.1/servers?search=io.github.Anandb71/arbor

Note

github.com/mcp search UI may lag indexing. Use the official registry API lookup above as source of truth.

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Language support

Arbor supports production parsing and graph analysis across major ecosystems:

• Rust
• TypeScript / JavaScript
• Python
• Go
• Java
• C / C++
• C#
• Dart
• Kotlin (fallback parser)
• Swift (fallback parser)
• Ruby (fallback parser)
• PHP (fallback parser)
• Shell (fallback parser)

Detailed parser notes and expansion guidance:

• docs/ADDING_LANGUAGES.md
• docs/ARCHITECTURE.md

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Architecture and docs

Start here when you need deeper internals:

• docs/QUICKSTART.md
• docs/ARCHITECTURE.md
• docs/GRAPH_SCHEMA.md
• docs/PROTOCOL.md
• docs/MCP_INTEGRATION.md
• docs/ROADMAP.md

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Git-aware CI workflows

Arbor supports pre-merge risk checks and change gating:

arbor diff
arbor check --max-blast-radius 30
arbor open <symbol>

Use the repository GitHub Action for CI integration:

name: Arbor Check
on: [pull_request]

jobs:
  arbor:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v5
      - uses: Anandb71/arbor@release/v1.8
        with:
          command: check . --max-blast-radius 30

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Release channels

Automated release distribution includes:

• GitHub Releases (platform binaries)
• crates.io
• GHCR container images
• npm wrapper package
• VS Code Marketplace / Open VSX extension channels
• Homebrew + Scoop

Runbook: docs/RELEASING.md

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Contributing

Contributions are welcome.

• Start with: CONTRIBUTING.md
• Code of conduct: CODE_OF_CONDUCT.md
• Security policy: SECURITY.md
• Good first tasks: docs/GOOD_FIRST_ISSUES.md

For local development:

cargo build --workspace
cargo test --workspace

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Contributors

Automatically maintained by .github/workflows/contributors.yml.

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Security

Arbor is local-first by design:

• No mandatory data exfiltration
• Offline-capable workflows
• Open-source code paths

Report vulnerabilities via SECURITY.md.

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License

MIT — see LICENSE.