V3 deterministic codebase language statistics capability pack. By-value connector composition (service_kind=cli, no separate ingredient): the local tokei CLI counts files, lines, code, comments, and blanks for one trusted local source tree and returns aggregate JSON via the codebase.language_stats catalog operation. Fixed-function and reproducible: no arbitrary tokei flags, no previous-run input file, no per-file path listing, no hidden-file override, no ignore-file bypass, no shell wrapper, and no network egress. Requires tokei on PATH (macOS: brew install tokei; Rust environments: cargo install tokei). Local and no-egress.