Struct TemplateCaps 

pub struct TemplateCaps {
    pub supports_tools: Option<bool>,
    pub supports_tool_calls: Option<bool>,
    pub supports_system_role: Option<bool>,
    pub supports_parallel_tool_calls: Option<bool>,
    pub supports_preserve_reasoning: Option<bool>,
    pub supports_reasoning_effort: Option<bool>,
    pub supports_string_content: Option<bool>,
    pub supports_typed_content: Option<bool>,
    pub supports_object_arguments: Option<bool>,
}

The nine bools of chat_template_caps, as GET /props reports them.

Field names are byte-for-byte the wire keys measured on the pinned build (b1-10bf611) — template_caps_tests pins the full list against a fixture transcribed from that measurement, so an upstream rename or addition fails loudly rather than silently reading as absent.

Every field is Option<bool>: None means the server did not report the key, which — five defaults being true upstream — licenses no conclusion in either direction. Unknown fields in the body are ignored (no deny_unknown_fields): a future build adding a tenth cap must not make the nine known ones unreadable.

Fields

supports_tools: Option<bool>

Whether the template reads tools. Upstream default: true.

supports_tool_calls: Option<bool>

Whether the template renders assistant tool_calls. Upstream default: true.

supports_system_role: Option<bool>

Whether the template accepts a system role. Upstream default: true.

supports_parallel_tool_calls: Option<bool>

Whether multiple tool calls may appear in one assistant turn. Upstream default: true.

supports_preserve_reasoning: Option<bool>

Whether reasoning traces survive in the full history rather than only the last assistant message. Upstream default: false.

supports_reasoning_effort: Option<bool>

Whether the template reads the reasoning_effort variable (or its reasoning_strength alias — the probe binds both, caps.cpp:29-32). Upstream default: false.

Read, not honoured: stats.used says the variable was accessed during an instrumented render, not that any particular level changes the output (ADR 0007 findings 2 and 3).

supports_string_content: Option<bool>

Whether message content may be a plain string. Upstream default: true.

supports_typed_content: Option<bool>

Whether message content may be the typed parts array. Upstream default: false.

supports_object_arguments: Option<bool>

Whether tool-call arguments may be a JSON object rather than a string. Upstream default: false.

Trait Implementations

impl Clone for TemplateCaps

fn clone(&self) -> TemplateCaps

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TemplateCaps

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

Formats the value using the given formatter.

impl Default for TemplateCaps

fn default() -> TemplateCaps

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TemplateCaps

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for TemplateCaps

fn eq(&self, other: &TemplateCaps) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for TemplateCaps

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for TemplateCaps

impl StructuralPartialEq for TemplateCaps