Constant MAX_COCHANGE_COMMIT_FILES 

pub const MAX_COCHANGE_COMMIT_FILES: usize = 1000;

Available on crate feature vcs-git only.

Initial-import commits touch thousands of files at once; a co-change graph grows O(width²) in commit width, so commits wider than this are excluded from the graph (only — their change entropy, which is O(width), is still counted). Tuned per issue #330’s worked example.