Module provider 

Provider and model system.

Loads a built-in model catalog from models.json in this directory, overlays user overrides from ~/.rab/agent/models.json, and provides the right StreamProvider for each model’s API protocol.

Modules

anthropic

Custom Anthropic Messages API provider that uses model_config.base_url and forwards model_config.headers — unlike yoagent’s AnthropicProvider which hardcodes https://api.anthropic.com and ignores headers.

compat

Rich compatibility flags matching pi’s OpenAICompletionsCompat structure. Deserialized from the compat field in models.json, then serialized into ModelConfig::headers["_rab_compat"] for our custom provider to read.

generate_models

rab generate-models subcommand.

models

models.json — parses built-in and user models.json files and constructs yoagent ModelConfigs with rich compat stored in headers.

oauth

OAuth provider trait and registry — matching pi’s OAuthProviderInterface.

openai_compat

Custom OpenAI-compatible streaming provider with pi-level compat support.

Structs

ProviderRegistry

The provider registry — holds all known providers and their models.

ResolvedModel

A resolved model ready for use by the agent.

Functions

calculate_cost

Calculate the USD cost components of a usage record given a model’s cost config.

get_agent_dir

Get the agent config directory (~/.rab/agent).