Struct HandlerDef 

pub struct HandlerDef {
    pub name: &'static str,
    pub description: &'static str,
    pub visibility: Visibility,
    pub category: VerbCategory,
    pub params: &'static [ParamDef],
}

Handler metadata for discovery and documentation.

Replaces the previous VerbDef. Every entry carries a visibility tag so the registry can separate the MCP-exposed surface from internal handlers, and a category that classifies the illocutionary force of the verb per the speech-act taxonomy.

The params slice is used by VerbRegistry::describe_verb to build the help=true schema envelope. Packs that predate this field leave it empty (&[]) which is backward-compatible — callers receive a schema envelope with zero params rather than an error.

Fields

name: &'static str

description: &'static str

visibility: Visibility

category: VerbCategory

Illocutionary force classification. Use Assertive for Subhandler entries that have no external callers.

params: &'static [ParamDef]

Parameter schema for help=true introspection.

Empty (&[]) is the correct default for handlers that predate this field or have no fixed parameter schema (e.g. free-form query verbs).

Implementations

impl HandlerDef

pub fn presentation_policy(&self) -> VerbPresentationPolicy

Resolve the presentation policy for this handler.

Returns VerbPresentationPolicy::AlwaysVerbose for verbs whose semantics demand full output (full UUIDs, complete timestamps) regardless of the caller’s requested presentation mode.

Stream writers retain exact receipt timestamps while keeping other Agent transforms. Unlisted verbs use Standard.

Trait Implementations

impl Clone for HandlerDef

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HandlerDef

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

Formats the value using the given formatter.

impl Eq for HandlerDef

impl PartialEq for HandlerDef

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for HandlerDef