What problem does it solve? Answering structural questions about a codebase — what depends on a symbol, what the blast radius of a change is, how a feature flows end-to-end — normally requires slow, error-prone grep-and-read loops. This Skill uses a pre-indexed code knowledge graph to answer those relationship questions in one tool call. ## Core Features & Use Cases - Impact analysis: Run codegraph impact "symbol" to get the transitive dependency closure of a symbol before changing it. - Flow tracing: Use codegraph explore to trace how a feature like authentication works end-to-end, with call paths and source in one shot. - Caller/callee lookup: Query codegraph callers and codegraph callees to map symbol relationships, exposed to the agent over MCP. - Use Case: Before renaming a shared utility, ask what depends on it — the graph returns the blast radius roughly 5x faster than grep-and-read, then confirm completeness with ripgrep. ## Quick Start Ask the agent what depends on a specific function or component in this repo and have it answer using the codegraph index, confirming completeness with ripgrep.
