tokei

tokei is a source tree metrics CLI for quickly summarizing language mix and line counts. It scans directories or files and reports files, total lines, code, comments, and blanks, with optional per-file and machine-readable output.

• Measure language mix, file counts, and code, comment, and blank-line totals for a repo, subtree, or set of paths.
• Drill down to per-file statistics, sort results by files, lines, blanks, code, or comments, and exclude paths when scoping an audit.
• Export totals as JSON or stream per-file JSON records for CI baselines, repository reports, or follow-up scripts.

• --output json and --streaming json give agents structured totals or per-file records without scraping the default table view.
• Commands are non-interactive, respect ignore files by default, and combine cleanly with path, exclude, type, and sort flags in inspect-parse-report loops.
• This is inspection-only and metric-focused: it helps agents find where code volume sits, not whether code is correct, complex, or safe.

• YAML and CBOR output require extra compile-time features; JSON is the portable structured format available in standard builds.
• Counts depend on language detection and ignore rules, so ambiguous extensions or excluded paths can change totals until you adjust patterns or flags.