Aug 10, 2026
Fold-in vs full rescan: incremental code graph indexing
How CGraph keeps a code graph current as you edit: content-hashed fold-ins within a couple of seconds, and why a branch switch becomes one full rescan.
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How CGraph keeps a code graph current as you edit: content-hashed fold-ins within a couple of seconds, and why a branch switch becomes one full rescan.
cgraph daemon install keeps a resident code-graph daemon warm for every repo you track — auto-discovered, restarted on crash, started at login via launchd.
Find the blast radius of a code change in one query. CGraph keeps a resolved graph warm in a daemon, so "what breaks if I change this?" returns in about 10ms.
We measured CGraph against Graphify and against the grep-and-read loop agents use today: 12–198x faster builds, a 15.8x faster warm query, and ~82% fewer tokens on realistic navigation tasks — with the caveats that matter.