Struct FieldGroup 

pub struct FieldGroup {
    pub fields: Vec<String>,
    pub estimated_value: f32,
    pub default_include: bool,
}

One named subset of fields from a tool’s response. Providers carve the full result into groups so the planner can drop low-value fields without dropping the call entirely.

Conventionally a tool ships at least:

• must_have — fields required for the response to be useful;
• nice_to_have — informative but droppable under budget;
• debug — low-value diagnostics, dropped first.

Fields

fields: Vec<String>

JSON pointer-style field paths (e.g. "id", "author.email"). Empty list means “all remaining fields” — used by the nice_to_have group as a wildcard.

estimated_value: f32

Expected value contribution of this group, on a 0.0–1.0 scale, relative to the tool’s total must_have value. The planner multiplies this by the tool’s value_class to get the absolute value-per-token used in the knapsack.

default_include: bool

Whether the planner should include this group by default. false means “opt-in” — only included when the user intent explicitly mentions one of the fields.

Trait Implementations

impl Clone for FieldGroup

fn clone(&self) -> FieldGroup

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FieldGroup

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

Formats the value using the given formatter.

impl Default for FieldGroup

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for FieldGroup

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for FieldGroup

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

where __S: Serializer,

Serialize this value into the given Serde serializer.