Enum ConfigSlotKind 

pub enum ConfigSlotKind {
    Endpoint,
    Secret,
    AuthMode,
}

The kind of a declared [[config_slots]] entry — a CLOSED vocabulary.

Deliberately an enum rather than a free String. A free string lets a typo (kind = "endpont") parse cleanly, survive ServerConfig::validate, and fail only at package time when it maps to no slot type — the failure surfacing two crates away from its cause. As a closed enum, an unrecognized discriminator is a serde parse error naming the accepted set, and a fourth kind becomes a deliberate addition here rather than a silent pass-through.

Why this type is toolkit-LOCAL

The three snake_case discriminators (endpoint, secret, auth_mode) are deliberately the same strings the pmcp-package slot-type discriminator uses for the corresponding variants, so a packaging tool can compare a declaration against a package slot without either crate depending on the other. The toolkit must NOT depend on pmcp-package: that crate is the workspace-excluded leaf, and a toolkit dependency on it inverts the layering. The agreement is enforced by the package side re-parsing the SAME config bytes, not by a shared type.

Variants

Endpoint

A network endpoint the target environment must supply (e.g. the backend API root). Behaviour-relevant: its tested_value records the endpoint the package was tested against.

Secret

A named secret the target environment must supply (e.g. an API key). Identity-bearing: it structurally carries no tested_value.

AuthMode

The backend authentication MODE. Structural rather than value-bearing: the auth-mode key is a serde tag, so no ${VAR} placeholder form of it can deserialize — the baked literal IS the default and deviation surfaces through slot classification, not through a placeholder.

Trait Implementations

impl Clone for ConfigSlotKind

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ConfigSlotKind

impl Debug for ConfigSlotKind

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

Formats the value using the given formatter.

impl Default for ConfigSlotKind

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ConfigSlotKind

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ConfigSlotKind

impl PartialEq for ConfigSlotKind

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ConfigSlotKind

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ConfigSlotKind