> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-adaptive/acg/canonicalize/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/nemo/relay/_mcp/server.

# Module canonicalize

> RFC 8785 JSON Canonicalization and whitespace normalization for cache stability.

Generated from `cargo doc --no-deps -p nemo-relay -p nemo-relay-adaptive -p nemo-relay-pii-redaction -p nemo-relay-ffi -p nemo-relay-types -p nemo-relay-plugin -p nemo-relay-worker-proto -p nemo-relay-worker`.

RFC 8785 JSON Canonicalization and whitespace normalization for cache stability.

This module provides deterministic JSON serialization (RFC 8785 / JCS) and whitespace normalization so that semantically equivalent content always produces byte-identical output. This is critical for cache key stability: without canonicalization, tool schemas or JSON content with different key orders would produce different hashes and miss the cache.

## Public functions

* [`canonicalize_json`](/reference/api/rust-library-reference/nemo-relay-adaptive/acg/canonicalize/fn-canonicalize-json) - Canonicalize a JSON string per RFC 8785.
* [`canonicalize_value`](/reference/api/rust-library-reference/nemo-relay-adaptive/acg/canonicalize/fn-canonicalize-value) - Canonicalize a `serde_json::Value` per RFC 8785.
* [`normalize_whitespace`](/reference/api/rust-library-reference/nemo-relay-adaptive/acg/canonicalize/fn-normalize-whitespace) - Trim and collapse whitespace in text content.
* [`sha256_hex`](/reference/api/rust-library-reference/nemo-relay-adaptive/acg/canonicalize/fn-sha256-hex) - Compute SHA-256 hex digest with `"sha256:"` prefix.

## Functions

* [canonicalize\_json](/reference/api/rust-library-reference/nemo-relay-adaptive/acg/canonicalize/fn-canonicalize-json): Canonicalize a JSON string per RFC 8785 (JCS).
* [canonicalize\_value](/reference/api/rust-library-reference/nemo-relay-adaptive/acg/canonicalize/fn-canonicalize-value): Canonicalize a `serde_json::Value` per RFC 8785.
* [normalize\_whitespace](/reference/api/rust-library-reference/nemo-relay-adaptive/acg/canonicalize/fn-normalize-whitespace): Normalize whitespace in text content.
* [sha256\_hex](/reference/api/rust-library-reference/nemo-relay-adaptive/acg/canonicalize/fn-sha256-hex): Compute SHA-256 hex digest with `"sha256:"` prefix.

> RFC 8785 JSON Canonicalization and whitespace normalization for cache stability.

## Docs

- [Function canonicalize_json](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-adaptive/acg/canonicalize/fn-canonicalize-json.md): Canonicalize a JSON string per RFC 8785 (JCS).
- [Function canonicalize_value](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-adaptive/acg/canonicalize/fn-canonicalize-value.md): Canonicalize a `serde_json::Value` per RFC 8785.
- [Function normalize_whitespace](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-adaptive/acg/canonicalize/fn-normalize-whitespace.md): Normalize whitespace in text content.
- [Function sha256_hex](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-adaptive/acg/canonicalize/fn-sha256-hex.md): Compute SHA-256 hex digest with `"sha256:"` prefix.