Module capabilities 

Provider/model capability contracts and preflight routing (JOE-1613 / JOE-1829 / JOE-1936).

Capabilities are declared for built-ins and consulted before expensive work (decode, download, network). OpenRouter auto routing is capability- authoritative: only models in the reviewed static registry are auto-routed; unknown models fail closed and require an explicit chat or transcriptions mode — never silent model-name heuristics.

Ownership (JOE-1936)

Factories on crate::provider_platform::ProviderRegistry are the preferred lookup path via crate::provider_platform::capabilities_for. Free functions below remain the canonical built-in descriptors that factories call, so request-path preflight and discovery stay consistent without duplicating tables in the CLI.

Structs

OpenRouterSttRecord

Reviewed static capability record for an OpenRouter STT model id (JOE-1829).

ProviderCapabilities

Declared capabilities for a provider/model combination.

UnsupportedCapability

Why a request was rejected at preflight.

Enums

CapabilityOperation

DescriptorFreshness

How fresh / trusted a capability descriptor is.

OpenRouterSttPath

Resolved OpenRouter STT route (capability-facing name for SttPath).

SttBackendClass

Backend class for STT honesty.

VoiceModel

Voice selection model advertised by a TTS (or multimodal) provider.

Constants

CAPABILITY_SCHEMA_VERSION

Schema version for capability JSON.

Statics

OPENROUTER_STT_REGISTRY

Authoritative registry of OpenRouter models Aurum will auto-route.

Functions

apply_stt_request_gates

Apply common request gates against already-resolved capabilities (fail closed).

elevenlabs_tts_capabilities

ElevenLabs TTS capabilities (JOE-1941). Fail closed for unknown models.

local_tts_capabilities

Local Kitten TTS capabilities.

local_whisper_capabilities

Local Whisper STT capabilities.

lookup_openrouter_stt

Look up a reviewed OpenRouter STT capability record (exact id, case-insensitive).

openai_stt_capabilities

First-party OpenAI STT capabilities (JOE-1940). Fail closed for unknown models.

openai_tts_capabilities

First-party OpenAI TTS capabilities (JOE-1940).

openrouter_stt_capabilities

OpenRouter STT capabilities after path resolution.

openrouter_tts_capabilities

OpenRouter remote TTS capabilities (JOE-1939). Fail closed when model is unknown.

preflight_cleanup

preflight_cleanup_for

preflight_cleanup with a validated ProviderId.

preflight_stt

Preflight STT: reject offline OpenRouter, unreliable SRT, unknown providers.

preflight_stt_for

preflight_stt with a validated ProviderId.

preflight_tts

Preflight local TTS language support (assumes provider local).

preflight_tts_for

Preflight TTS for a validated provider id.

resolve_openrouter_stt_path

Route OpenRouter STT from explicit mode + reviewed capability registry.

rules_cleanup_capabilities

Rules cleanup capabilities (language-aware).

xai_stt_capabilities

xAI REST STT capabilities (JOE-1942).

xai_tts_capabilities

xAI REST TTS capabilities (JOE-1942).