Enum ToolClass 

#[non_exhaustive]
pub enum ToolClass {
    Read,
    Account,
    Trading,
}

Effect class of an MCP tool.

Driven by ADR-0003. The class is part of the handler’s type, not a runtime field — the registry refuses to register a Trading tool without the corresponding feature gate.

Marked #[non_exhaustive] so adding a new class in a future milestone (e.g. an Admin class) is not a SemVer break for callers outside the crate. Internal matches stay exhaustive.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Read

Read-only public market data. No auth required.

Account

Authenticated account-scoped reads.

Trading

Trading-class actions. Requires --allow-trading and credentials.

Implementations

impl ToolClass

pub const fn flag(self) -> &'static str

CLI flag that enables this class. Used in AdapterError::NotEnabled payloads so the LLM knows what is missing.

Trait Implementations

impl Clone for ToolClass

fn clone(&self) -> ToolClass

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ToolClass

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

Formats the value using the given formatter.

impl Hash for ToolClass

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ToolClass

fn cmp(&self, other: &ToolClass) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ToolClass

fn eq(&self, other: &ToolClass) -> 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 PartialOrd for ToolClass

fn partial_cmp(&self, other: &ToolClass) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for ToolClass

impl Eq for ToolClass

impl StructuralPartialEq for ToolClass