> This page is for NeMo Relay, version dev.
> For other versions, use one of these documentation indexes:
> - Latest (v0.10.4) (default): https://docs.nvidia.com/nemo/relay/latest/llms.txt
> - dev: https://docs.nvidia.com/nemo/relay/dev/llms.txt
> - v0.10.4: https://docs.nvidia.com/nemo/relay/v0.10.4/llms.txt
> - v0.9.4: https://docs.nvidia.com/nemo/relay/v0.9.4/llms.txt
> - v0.8.4: https://docs.nvidia.com/nemo/relay/v0.8.4/llms.txt
> - v0.7.3: https://docs.nvidia.com/nemo/relay/v0.7.3/llms.txt

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

# Struct Extension Registration

> Extension vocabulary is scoped to a producer namespace and admitted once.

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`.

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Extension vocabulary is scoped to a producer namespace and admitted once.

## Fields

### `namespace: &'a str`

Producer namespace outside reserved built-in namespaces.

### `name: &'a str`

Stable local name combined with the namespace at admission.

### `description: &'a str`

Safe bounded explanation retained once in registration metadata.

### `allowed_classes: &'a [FailureClass]`

Permitted causes; successful or unspecified extensions admit no class.

### `outcome: DiagnosticOutcome`

Declared outcome used to validate extension class requirements.

## Trait Implementations

### `impl<'a> Clone for ExtensionRegistration<'a>`

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#### `clone`

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#### `clone_from`

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### `impl<'a> Debug for ExtensionRegistration<'a>`

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#### `fmt`

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