# Diff bounded line sequences

Build-time release reference. Runtime readiness, deployment, payment settlement and external indexing are not evaluated here. Prices are proposed; this file cannot authorize execution or payment.

Use for auditable changes between small documents. Computes a minimal insertion/deletion script by bounded longest-common-subsequence, with one-based old/new line numbers; ties delete first. Maximum 300 lines and 30,000 UTF-16 units per document. Compares line content exactly but ignores CR/LF separator style; a final newline is an additional empty line. Not a byte diff, patch file, or fuzzy diff.

Release: 0.29.0. Built: 2026-10-06T15:38:00Z.

## Choose for
- Inspect exact bounded line changes with source line numbers.

## Outside this profile
- Large files, fuzzy matching, byte comparison, or executable patch output.

Proposed nominal USD 0.005 per successful call; payer fees excluded. No verified runtime availability.

- [Exact release contract](/reference/services/lines-diff.json)
- [Input schema](/reference/schemas/lines-diff.input.json)
- [Output schema](/reference/schemas/lines-diff.output.json)
- [Fixed example](/reference/examples/lines-diff.json)
- [Complete HTML reference](/discover/tools/lines-diff)