> 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-types/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/nemo/relay/_mcp/server.

# nemo-relay-types

> Shared serializable data model types for NeMo Relay.

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`.

Shared serializable data model types for NeMo Relay.

This crate contains DTOs and wire-compatible type definitions used by the runtime and native plugin SDK. It intentionally does not contain runtime registries, dynamic loading, codecs, exporters, or process-global state.

## Modules

* [api](/reference/api/rust-library-reference/nemo-relay-types/api): Public runtime API data types. Shared API data types.
* [codec](/reference/api/rust-library-reference/nemo-relay-types/codec): Normalized LLM request and response data types. Shared normalized LLM request and response data types.
* [plugin](/reference/api/rust-library-reference/nemo-relay-types/plugin): Plugin configuration diagnostic data types. Shared plugin diagnostic data types.

## Type Aliases

* [Json](/reference/api/rust-library-reference/nemo-relay-types/type-json): Type alias for [`serde_json::Value`](https://docs.rs/serde_json/1.0.149/serde_json/value/enum.Value.html), used as the universal JSON representation throughout NeMo Relay APIs.

> Shared serializable data model types for NeMo Relay.

## Docs

- [Module api](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api.md): Public runtime API data types. Shared API data types.
- [Module event](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event.md): Lifecycle event DTOs. Event types for Agent Trajectory Observability Format (ATOF) runtime events.
- [Struct Base Event](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-baseevent.md): Shared event metadata carried by every ATOF event.
- [Struct Category Profile](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-categoryprofile.md): Category-specific profile data.
- [Struct Data Schema](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-dataschema.md): Identifier for the schema that describes an event's opaque `data` payload.
- [Struct Event Category](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-eventcategory.md): Semantic category carried by ATOF `category`.
- [Struct Event Sanitize Fields](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-eventsanitizefields.md): Observability fields that event sanitizers may rewrite.
- [Struct Finite F64](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-finitef64.md): A finite IEEE 754 double-precision value.
- [Struct Histogram Boundaries](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-histogramboundaries.md): Explicit histogram bucket boundaries that are finite and strictly increasing.
- [Struct Instrument Descriptor](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-instrumentdescriptor.md): Descriptor fields shared by all recordings of an instrument.
- [Struct Instrument Name](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-instrumentname.md): An OpenTelemetry instrument name together with its canonical form.
- [Struct Mark Event](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-markevent.md): ATOF point-in-time mark event.
- [Struct Metric Attributes](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-metricattributes.md): A deterministic map of typed OpenTelemetry metric attributes.
- [Struct Metric Envelope](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-metricenvelope.md): Payload stored in a mark using `METRIC_DATA_SCHEMA_NAME`.
- [Struct Metric Measurement](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-metricmeasurement.md): One recording operation in a Relay metric mark.
- [Struct Metric Validation Error](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-metricvalidationerror.md): Validation error for a Relay metric envelope.
- [Struct Parse LogSeverity Error](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-parselogseverityerror.md): Error returned when parsing an unsupported log severity.
- [Struct Pending Mark Spec](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-pendingmarkspec.md): Mark requested by middleware for materialization by a lifecycle owner.
- [Struct Scope Event](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-scopeevent.md): ATOF scope lifecycle event.
- [Struct Validated Metric Measurement](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/struct-validatedmetricmeasurement.md): Parsed metric measurement that is safe for OTLP export.
- [Enum Attribute Value](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/enum-attributevalue.md): Typed OpenTelemetry attribute values, including homogeneous primitive arrays.
- [Enum Event](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/enum-event.md): Tagged union covering the two ATOF event kinds emitted by the runtime.
- [Enum LogSeverity](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/enum-logseverity.md): Severity attached to a mark that may be projected as an OpenTelemetry log.
- [Enum Metric Kind](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/enum-metrickind.md): OpenTelemetry instrument kind represented by a metric measurement mark.
- [Enum Metric Value](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/enum-metricvalue.md): One typed metric value accepted by Relay's metric schema.
- [Enum Metric Value Type](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/enum-metricvaluetype.md): Numeric representation used by a metric measurement.
- [Enum Scope Category](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/enum-scopecategory.md): Agent Trajectory Observability Format (ATOF) lifecycle phase for a scope event.
- [Constant ATOF_VERSION](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/constant-atof-version.md): Agent Trajectory Observability Format (ATOF) protocol version emitted by this runtime.
- [Constant LOG_SEVERITY_METADATA_KEY](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/constant-log-severity-metadata-key.md): Reserved metadata key carrying the canonical severity of a mark exported as a log.
- [Constant METRIC_DATA_SCHEMA_NAME](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/constant-metric-data-schema-name.md): Relay-owned schema name for mark payloads containing metric measurements.
- [Constant METRIC_DATA_SCHEMA_VERSION](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/constant-metric-data-schema-version.md): Current Relay-owned metric measurement schema version.
- [Function attributes_from_handle](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/fn-attributes-from-handle.md): Convert handle bitflags into ATOF attributes.
- [Function llm_attributes_to_strings](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/fn-llm-attributes-to-strings.md): Convert LLM bitflags into ATOF attributes.
- [Function scope_attributes_to_strings](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/fn-scope-attributes-to-strings.md): Convert scope bitflags into ATOF attributes.
- [Function tool_attributes_to_strings](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/fn-tool-attributes-to-strings.md): Convert tool bitflags into ATOF attributes.
- [Function validate_metric_measurements](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/event/fn-validate-metric-measurements.md): Validate a complete list of metric measurements atomically.
- [Module llm](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/llm.md): LLM DTOs and attributes. Shared LLM data types.
- [Struct LlmAttributes](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/llm/struct-llmattributes.md): Bitflags that modify LLM-call behavior and observability.
- [Struct LlmRequest](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/llm/struct-llmrequest.md): JSON-shaped LLM request payload passed through the runtime.
- [Struct LlmRequest Intercept Outcome](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/llm/struct-llmrequestinterceptoutcome.md): Result of an LLM request intercept that can schedule lifecycle marks.
- [Constant LLM_REQUEST_INTERCEPT_OUTCOME_SCHEMA](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/llm/constant-llm-request-intercept-outcome-schema.md): Versioned JSON envelope schema for `LlmRequestInterceptOutcome`.
- [Module registry](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/registry.md): Runtime-registration discovery DTOs. Shared runtime-registration discovery data types.
- [Struct Runtime Registration Identity](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/registry/struct-runtimeregistrationidentity.md): Structured identity for a global gateable runtime registration.
- [Struct Runtime Registration Owner](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/registry/struct-runtimeregistrationowner.md): Discovery metadata describing the owner of a runtime registration.
- [Enum Runtime Registration Kind](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/registry/enum-runtimeregistrationkind.md): A global runtime registration surface that can be selected by a conditional middleware guardrail.
- [Enum Runtime Registration Owner Kind](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/registry/enum-runtimeregistrationownerkind.md): The owner category reported for a global runtime registration.
- [Module scope](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/scope.md): Scope DTOs and attributes. Shared scope data types.
- [Struct Scope Attributes](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/scope/struct-scopeattributes.md): Bitflags that modify scope behavior and observability.
- [Enum Handle Attributes](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/scope/enum-handleattributes.md): Attribute bitflags attached to a concrete handle kind.
- [Enum Scope Type](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/scope/enum-scopetype.md): Semantic category attached to a scope lifecycle span.
- [Module tool](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/tool.md): Tool DTOs and attributes. Shared tool data types.
- [Struct Tool Attributes](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/tool/struct-toolattributes.md): Bitflags that modify tool-call behavior and observability.
- [Struct Tool Execution Intercept Outcome](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/tool/struct-toolexecutioninterceptoutcome.md): Canonical result returned by a tool execution intercept.
- [Struct Tool Execution Result](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/tool/struct-toolexecutionresult.md): Canonical application-visible result of tool execution.
- [Constant TOOL_EXECUTION_INTERCEPT_OUTCOME_SCHEMA](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/tool/constant-tool-execution-intercept-outcome-schema.md): Versioned native-plugin JSON envelope schema for `ToolExecutionInterceptOutcome`.
- [Constant TOOL_EXECUTION_RESULT_SCHEMA](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/api/tool/constant-tool-execution-result-schema.md): Versioned native-plugin JSON envelope schema for `ToolExecutionResult`.
- [Module codec](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec.md): Normalized LLM request and response data types. Shared normalized LLM request and response data types.
- [Module identity](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/identity.md): Stable LLM codec identities shared across SDK boundaries. Stable LLM codec identities shared across Relay runtime and SDK boundaries.
- [Enum Builtin LlmCodec](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/identity/enum-builtinllmcodec.md): Relay's built-in LLM codec identities.
- [Enum LlmCodec Identity](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/identity/enum-llmcodecidentity.md): Per-call LLM codec identity supplied to sanitizer and SDK callbacks.
- [Module optimization](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/optimization.md): Plugin-neutral LLM optimization evidence and summaries. Plugin-neutral evidence and summaries for LLM optimizations.
- [Struct LlmOptimization Contribution](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/optimization/struct-llmoptimizationcontribution.md): One optimizer's evidence for a change to an LLM call.
- [Struct LlmOptimization Kind](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/optimization/struct-llmoptimizationkind.md): Open, forward-compatible optimization classification.
- [Struct LlmOptimization Model](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/optimization/struct-llmoptimizationmodel.md): Model identity used for counterfactual and effective pricing.
- [Struct LlmOptimization Model Transition](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/optimization/struct-llmoptimizationmodeltransition.md): A model change proposed or applied by an optimizer.
- [Struct LlmOptimization Summary](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/optimization/struct-llmoptimizationsummary.md): Close-time accounting attached to the normalized LLM response.
- [Struct LlmOptimization Token Impact](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/optimization/struct-llmoptimizationtokenimpact.md): Shared token evidence that Relay can aggregate without understanding a plugin payload.
- [Struct LlmOptimization Tokens](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/optimization/struct-llmoptimizationtokens.md): Token quantities retained independently from pricing arithmetic.
- [Enum LlmOptimization Evidence Quality](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/optimization/enum-llmoptimizationevidencequality.md): Whether token evidence was observed directly or estimated.
- [Enum LlmOptimization Summary Status](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/optimization/enum-llmoptimizationsummarystatus.md): Completeness of close-time optimization accounting.
- [Trait LlmOptimization Payload](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/optimization/trait-llmoptimizationpayload.md): Trait implemented by typed plugin payloads embedded in an optimization contribution.
- [Module request](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request.md): Normalized LLM request data types. LLM request codec types and trait.
- [Struct Annotated LlmRequest](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/struct-annotatedllmrequest.md): Structured view of an LLM request, produced by a Codec from opaque `LlmRequest` content.
- [Struct Function Call](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/struct-functioncall.md): A function call within a tool call.
- [Struct Function Definition](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/struct-functiondefinition.md): A function definition within a tool definition.
- [Struct Generation Params](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/struct-generationparams.md): Normalized generation parameters across providers.
- [Struct Open AiImage Url](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/struct-openaiimageurl.md): OpenAI image URL payload.
- [Struct Provider Native Component](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/struct-providernativecomponent.md): Lossless provider-native component embedded in the annotated request.
- [Struct Tool Call](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/struct-toolcall.md): A tool call requested by the assistant.
- [Struct Tool Choice Function](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/struct-toolchoicefunction.md): A specific tool choice that forces a named function.
- [Struct Tool Choice Function Name](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/struct-toolchoicefunctionname.md): The name component of a specific tool choice.
- [Enum ApiSpecific Request](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/enum-apispecificrequest.md): API-specific request fields that do not have portable semantics.
- [Enum Content Part](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/enum-contentpart.md): A single content part within a multimodal message.
- [Enum Message](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/enum-message.md): A single message in a conversation, tagged by role.
- [Enum Message Content](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/enum-messagecontent.md): Message content: either a plain string or multimodal parts array.
- [Enum Tool Choice](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/enum-toolchoice.md): Tool choice control: how the model should use available tools.
- [Enum Tool Definition](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/enum-tooldefinition.md): A tool definition available to the model.
- [Constant ANNOTATED_LLM_REQUEST_SCHEMA](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/request/constant-annotated-llm-request-schema.md): Versioned JSON envelope schema for `AnnotatedLlmRequest`.
- [Module response](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/response.md): Normalized LLM response data types. Normalized LLM response types produced by response codecs.
- [Struct Annotated LlmResponse](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/response/struct-annotatedllmresponse.md): Structured view of an LLM response, produced by a response codec from raw JSON API output.
- [Struct Cost Estimate](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/response/struct-costestimate.md): Normalized LLM response cost.
- [Struct Response Tool Call](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/response/struct-responsetoolcall.md): A tool call requested by the model in its response.
- [Struct Usage](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/response/struct-usage.md): Token usage statistics from an LLM API response.
- [Enum ApiSpecific Response](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/response/enum-apispecificresponse.md): API-specific response data that cannot be normalized across providers.
- [Enum Cost Source](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/response/enum-costsource.md): Source of a normalized cost value.
- [Enum Finish Reason](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/codec/response/enum-finishreason.md): Normalized reason why the model stopped generating.
- [Module plugin](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/plugin.md): Plugin configuration diagnostic data types. Shared plugin diagnostic data types.
- [Struct Config Diagnostic](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/plugin/struct-configdiagnostic.md): Structured validation diagnostic for plugin validation.
- [Enum Diagnostic Level](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/plugin/enum-diagnosticlevel.md): Diagnostic severity returned by plugin validation.
- [Type Alias Json](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-types/type-json.md): Type alias for `serde_json::Value`, used as the universal JSON representation throughout NeMo Relay APIs.