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RAG & Memory

🕸️codegraph

ACTIVE BREAKOUT

colbymchenry/codegraph · homepage ↗

Pre-indexed code knowledge graph, auto syncs on code changes, for Claude Code, Codex, Gemini, Cursor, OpenCode, AntiGravity, Kiro, and Hermes Agent, fewer tokens, fewer tool calls, 100% local

⭐ Hugely popular: 67k stars, gaining about 1k a week

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repo profile

vintage 2026 launched this year
delivery product
language C
license MIT

momentum

total stars 67k
stars added last week +1k
binary downloads 107k total · GitHub releases
used by 59 repos & packages
commits / week 21 cooling · -58% vs prior mo
issues closed 89% ~1 day to close, median
contributors 42 (+1 in 15d)
release cadence weekly
last activity 8d ago

durability

backing community / independent
openness permissive
bus factor 1 solo
top-author share 54% 6 mo

bus factor = how many people it takes to cover more than half the commits (6 months). 1 is a solo project; higher means the work is spread across a team. top-author share is the single busiest author's slice of those commits.

since we covered it

monthly average + 27k/mo (+71002%/mo) · + 67k total since PR#35

why it's a big deal

  • The context-efficiency layer made literal: the author’s benchmarks across six real codebases report roughly 92% fewer tool calls and 71% faster exploration.
  • It pairs cleanly with the focal-model thesis, fewer tokens burned on discovery means a smaller, cheaper model can answer the same architecture question.
  • A native file watcher auto-syncs the graph as you code, so it stays current with zero configuration.

under the hood

  • tree-sitter parses source into ASTs that land in SQLite with FTS5; a resolution pass links calls to definitions, imports to files, and class inheritance.
  • It exposes search / callers / callees / impact / context as MCP tools, plus a library API for your own pipelines.
  • codegraph affected traces import dependencies to pick exactly which test files a diff touches, drop it into CI or a pre-commit hook.

our take from PR#35, 2026-06-03

star history

PR#35 · 3867k now Jan 2026Aug 2026
  1. PR#35 38 2026-06-03
  2. now 67k + 67k since first covered

curve is sampled from GitHub's star history, plus our own daily readings since we covered it; the dashed stretch is before we first covered it, the solid line since. figures at coverage are the numbers we printed then (approx.), current count is live.

understory

Output and attention are roughly in balance.

-5 understory score output 92 · clout 97
Aug 2025 Jul 2026
  • output, commits & releases
  • clout, star velocity

output = commits & releases; clout = star velocity, both 0 to 100 monthly indices; the gap where output runs above clout is the understory. The understory →

covered in

  • PR#35 2026-06-03 on the radar

    Pre-indexed code graph that cuts Claude Code’s tool calls ~90%

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