BGI - Big Indexer
BGI is a static architecture analysis tool for large codebases.
It groups code units by behavioral role and emits explicit architectural boundaries.
Project domain: bigindexer.com
Use via MCP Registry
Big Indexer is published in the MCP Registry as io.github.ahmedxuhri/bigindexer.
pip install bigindexer==0.1.3
bgi mcp --graph bgi-graph.json --fuse-graph fuse-graph.jsonValidation: https://bigindexer.com/validation
What problem this solves
Most architecture graphs fail at scale in two ways:
- too many noisy edges
- giant clusters that collapse unrelated components together
BGI is built to keep both under control, so the output remains usable on large repos.
What you can do with it
- "Where should this boundary be before we refactor?"
BGI groups units by behavioral role (COV tokens + DRS clustering) so likely component boundaries are visible. - "Which subsystem coupling is risky?"
BGI surfaces high-coupling seams and fuse-boundary signals between clusters so integration risk is easier to spot. - "How do we plug architecture data into automation?"
BGI emits machine-readable artifacts (bgi-graph.json,fuse-graph.json) plus optional human context (bigindexer.md). - "How do we make AI changes less random?"
MCP tools (task_fingerprint,behavioral_twins,twin_context) ground prompts in in-repo behavior patterns. - "Can I run this automatically on PRs as a live example?"
Yes — use the dedicated action repoahmedxuhri/bigindexer-pr-risk-botto auto-comment PRs with blast radius, seams, and risk hints.
