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@viniraioli/pi-codegraph

v0.1.5

Published

3 days ago

Pi coding agent extension that wires codegraph (tree-sitter knowledge graph) as an MCP sidecar and injects usage instructions into the system prompt

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pi-codegraph

A pi coding agent extension that wires codegraph as an MCP sidecar and injects structured usage instructions into the system prompt.

What it does

When a project has a .codegraph/ index anywhere above the current working directory, this extension:

Spawns codegraph serve --mcp --path <project-root> as a sidecar process
Registers all codegraph tools returned by tools/list directly in the session
Injects a ## CodeGraph section into the base system prompt via APPEND_SYSTEM.md so the instructions are present from session startup — not just on the first agent turn

If the project has no .codegraph/ directory the extension is a no-op.

Requirements

codegraph CLI must be on $PATH
A .codegraph/ index must exist in the project root (run codegraph init -i to build one)

Install

As a pi package

/add npm:@viniraioli/pi-codegraph

Manual (git)

/add https://github.com/SeanPedersen/pi-codegraph

Building the index

codegraph init -i        # initial index build

The file watcher keeps the index current while pi is running.

This package follows the current CodeGraph MCP surface, so broad structural questions should go to codegraph_explore first.