# Checked Text Edit Application

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.

Atomically apply explicit nonoverlapping UTF-16 text edits after exact expected-slice and optional SHA-256 checks. Returns edited text, applied IDs and unchanged/replacement source mappings. Rejects split Unicode scalars and ambiguous insertion boundaries.

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

## Choose for
- Apply agent-proposed document edits with exact source assertions
- Produce source-to-result offset evidence for controlled text transformations

## Outside this profile
- Fuzzy matching, natural-language revision or edits to files on disk
- Mapping semantic annotations inside replacement text

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

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