Struct ProviderRule 

pub struct ProviderRule {

    pub model_match: String,
    pub version_min: Option<Vec<u32>>,
    pub native_tools: Option<bool>,
    pub defer_loading: Option<bool>,
    pub tool_search: Option<Vec<String>>,
    pub max_tools: Option<u32>,
    pub prompt_caching: Option<bool>,
    pub vision: Option<bool>,
    pub audio: Option<bool>,
    pub pdf: Option<bool>,
    pub files_api_supported: Option<bool>,
    pub structured_output: Option<String>,
    pub json_schema: Option<String>,
    pub thinking_modes: Option<Vec<String>>,
    pub interleaved_thinking_supported: Option<bool>,
    pub anthropic_beta_features: Option<Vec<String>>,
    pub thinking: Option<bool>,
    pub vision_supported: Option<bool>,
    pub preserve_thinking: Option<bool>,
    pub server_parser: Option<String>,
    pub honors_chat_template_kwargs: Option<bool>,
    pub requires_completion_tokens: Option<bool>,
    pub reasoning_effort_supported: Option<bool>,
    pub reasoning_none_supported: Option<bool>,
    pub recommended_endpoint: Option<String>,
    pub text_tool_wire_format_supported: Option<bool>,
    pub thinking_disable_directive: Option<String>,
}

One row of the capability matrix.

Fields

model_match: String

Glob pattern (supports leading / trailing * and a single mid-*). Matched case-insensitively against the model ID.

version_min: Option<Vec<u32>>

Optional [major, minor] lower bound. When set, the model ID must parse via the provider’s version extractor AND compare ≥ this tuple. Rules with an unparseable version_min for the given model are skipped, not merged.

native_tools: Option<bool>

defer_loading: Option<bool>

tool_search: Option<Vec<String>>

max_tools: Option<u32>

prompt_caching: Option<bool>

vision: Option<bool>

Whether this provider/model route accepts image or other visual input blocks through Harn’s LLM message path.

audio: Option<bool>

Whether this provider/model route accepts audio input blocks through Harn’s LLM message path.

pdf: Option<bool>

Whether this provider/model route accepts PDF/document input blocks through Harn’s LLM message path.

files_api_supported: Option<bool>

Whether uploaded file references can be reused in message content.

structured_output: Option<String>

Structured-output transport strategy. Known values are: native, tool_use, format_kw, and none.

json_schema: Option<String>

Legacy name retained for project overrides written before structured_output became the canonical capability.

thinking_modes: Option<Vec<String>>

Supported thinking/reasoning modes for this rule. Values are script-facing mode names: enabled, adaptive, and effort.

interleaved_thinking_supported: Option<bool>

Whether Anthropic interleaved thinking is supported for this provider/model route.

anthropic_beta_features: Option<Vec<String>>

Anthropic beta features that should be requested for this route.

thinking: Option<bool>

Legacy override compatibility. New built-in rules should use thinking_modes so the capability matrix preserves mode detail.

vision_supported: Option<bool>

Whether the model accepts image inputs in chat content.

preserve_thinking: Option<bool>

Carry <think>...</think> blocks in assistant history across turns. Qwen3.6 exposes this as chat_template_kwargs.preserve_thinking; Alibaba recommends enabling it for long-horizon agent loops so the model doesn’t re-derive context it already worked out in prior turns. Anthropic’s adaptive-thinking signature contract is stricter but plays the same role there.

server_parser: Option<String>

Name of any server-side response parser that can transform model bytes before Harn sees them. none means the provider returns the model text/tool channel without an implicit parser.

honors_chat_template_kwargs: Option<bool>

Whether provider-specific chat_template_kwargs are honored. Some OpenAI-compatible servers silently drop unknown kwargs.

requires_completion_tokens: Option<bool>

Whether this route requires OpenAI’s max_completion_tokens request field instead of legacy max_tokens.

reasoning_effort_supported: Option<bool>

Whether this route accepts OpenAI’s reasoning_effort request field.

reasoning_none_supported: Option<bool>

Whether this route accepts reasoning_effort: "none" as a true reasoning-off setting. Older GPT-5 variants support effort but only floor at minimal.

recommended_endpoint: Option<String>

Preferred endpoint family for this provider/model route. Values are descriptive labels consumed by providers, e.g. /api/generate-raw for Ollama raw prompt bypass.

text_tool_wire_format_supported: Option<bool>

Whether Harn’s text-tool protocol (<tool_call>name({...})) can survive the provider route and return in the visible response body.

thinking_disable_directive: Option<String>

In-prompt directive that disables this model’s “thinking” mode when the API doesn’t expose a first-class field (or exposes it inconsistently across templates / quantizations). For Qwen3 family chat templates this is /no_think. When thinking: false is requested and this is set, Harn auto-prepends the directive to the system message so script authors don’t need to know it exists.

Trait Implementations

impl Clone for ProviderRule

fn clone(&self) -> ProviderRule

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ProviderRule

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ProviderRule

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.