@nickm-swe/marrow

Marrow is a local, deterministic Rust MCP server and CLI. It parses your codebase with tree-sitter, builds a cross-repository dependency graph in a local SQLite database, and serves deterministic structural context — callers, blast radius, condensed code capsules — to AI coding agents. No embeddings, no provider SDKs, no network calls.

This npm package is a thin installer: it downloads the matching GitHub release archive for your platform, verifies it against checksums.sha256, extracts the marrow binary securely, and runs it from the package dist/ directory.

Install

npm install -g @nickm-swe/marrow

Quick start

Using Marrow is one word:

marrow

Just like claude opens Claude Code, marrow opens the Marrow hub: it shows your installed version, workspace status, and index health, then walks you through everything — connecting coding agents, indexing, compiling context packets, querying symbols, and diagnostics. On a fresh workspace it tells you exactly where to start.

Prefer direct commands? Every hub action is also a subcommand:

marrow integrate                                                 # connect Claude Code, Cursor, Copilot & more
marrow index                                                     # index the current directory
marrow context "trace request flow" --repo my_repo --format markdown
marrow doctor                                                    # verify the index answers agent queries

Commands

Type marrow for the interactive hub, or run any command directly. marrow --help prints the full grouped reference.

| Command | Purpose | |---------|---------| | marrow | Open the interactive hub (version, workspace status, guided actions). | | marrow mcp | Start the MCP stdio server (used by editor/agent integrations). | | marrow init | Initialize workspace config (.marrow/, .marrowrc.json). | | marrow index | Index the current workspace. | | marrow watch | Keep the index fresh via the background daemon. | | marrow context <task> | Compile a provider-neutral context packet (markdown/JSON). | | marrow query <symbol> <repo_id> | Print a symbol's context capsule plus impact analysis. | | marrow integrate | Write/print MCP setup for supported agent targets. | | marrow doctor | Verify indexed repos answer agent queries. | | marrow ui / marrow ui-app | Open the dashboard / manage the desktop app entry. | | marrow daemon [install\|uninstall\|status] | Background daemon and autostart management. |

The npm postinstall step does not register the desktop app or daemon. To add desktop app entries explicitly, run:

marrow ui-app enable

Daemon autostart remains separate and opt-in through marrow daemon install.

Learn more

• Full README, architecture, and measured benchmarks: github.com/NDMyers/marrow
• Context packet reference: docs/context-packets.md
• Environment variable / configuration reference: docs/configuration.md
• Changelog: CHANGELOG.md
• Issues: github.com/NDMyers/marrow/issues

License

MIT — see LICENSE.