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# Module anthropic_plugin

> Anthropic cache plugin for the Adaptive Cache Governor (ACG) system.

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`.

Anthropic cache plugin for the Adaptive Cache Governor (ACG) system.

Translates ACG stability classifications into Anthropic-specific `cache_control` breakpoints on content blocks. Implements the [`ProviderPlugin`](/reference/api/rust-library-reference/nemo-relay-adaptive/acg/plugin/trait-providerplugin) trait with:

* **Breakpoint budget allocation**: Up to 4 breakpoints per request.
* **Token minimum enforcement**: Per-model from [`CapabilityRegistry`](/reference/api/rust-library-reference/nemo-relay-adaptive/acg/capability/struct-capabilityregistry).
* **TTL mapping**: `RetentionTier` to Anthropic TTL (5m default or 1h extended).
* **Tool schema canonicalization**: RFC 8785 via \[`canonicalize_value`].
* **System string-to-array conversion**: Handles both string and array-of-blocks format.

## Threat mitigations

* T-08-01: Only injects `cache_control` annotations with fixed structure `{"type": "ephemeral"}`.
* T-08-02: `scope_label` is logged in detail but does NOT change cache visibility.
* T-08-03: All JSON access uses Option-returning methods; errors propagate via `Result`.
* T-08-05: TTL is hardcoded to exactly 2 behaviors (omit or `"1h"`).

## Structs

* [AnthropicCachePlugin](/reference/api/rust-library-reference/nemo-relay-adaptive/acg/anthropic_plugin/struct-anthropiccacheplugin): Anthropic-specific provider plugin for cache\_control breakpoint injection.

> Anthropic cache plugin for the Adaptive Cache Governor (ACG) system.

## Docs

- [Struct Anthropic Cache Plugin](https://docs.nvidia.com/nemo/relay/v0.10.0/reference/api/rust-library-reference/nemo-relay-adaptive/acg/anthropic_plugin/struct-anthropiccacheplugin.md): Anthropic-specific provider plugin for cache_control breakpoint injection.