Struct CommandAnnotations 

#[repr(C)]
pub struct CommandAnnotations {
    pub read_only: bool,
    pub destructive: bool,
    pub idempotent: bool,
    pub open_world: bool,
}

Behavioral hints surfaced to MCP and other LLM-facing surfaces. All four follow the MCP convention. When absent the surface treats them as untrusted defaults (destructive: true, open-world: true, read-only: false, idempotent: false), per MCP guidance.

Fields

read_only: bool

Tool performs no destructive updates; safe to call freely.

destructive: bool

Tool may delete or overwrite (default true per MCP semantics).

idempotent: bool

Repeated calls with the same input have the same effect.

open_world: bool

Tool reaches outside the host’s controlled environment (network calls, external APIs, the open world).

Trait Implementations

impl Clone for CommandAnnotations

fn clone(&self) -> CommandAnnotations

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CommandAnnotations

impl Debug for CommandAnnotations

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

Formats the value using the given formatter.

impl From<&CommandAnnotations> for CommandAnnotations

fn from(a: &CommandAnnotations) -> CommandAnnotations

Converts to this type from the input type.

impl From<&CommandAnnotations> for CommandAnnotations

fn from(a: &CommandAnnotations) -> CommandAnnotations

Converts to this type from the input type.