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ToolDescriptor

Struct ToolDescriptor 

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pub struct ToolDescriptor {
    pub server_id: String,
    pub tool_name: String,
    pub schema_json: Value,
    pub description: Option<String>,
    pub annotations: Value,
    pub descriptor_hash: String,
    pub first_seen_at: i64,
    pub approved_at: Option<i64>,
}
Expand description

MCP 工具描述符快照。

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§server_id: String

该工具所属 server。

§tool_name: String

工具名(upstream 原始名,未 namespaced)。

§schema_json: Value

MCP 提供的 JSON schema。

§description: Option<String>

工具描述文本。

§annotations: Value

MCP 规范中的 annotations(readOnlyHint 等)。

§descriptor_hash: String

descriptor 的规范化哈希(sha256(hex));I05 descriptor pinning 的唯一信任锚。

下游消费者应以此字段为权威,不要把其它字段(description / annotations) 当作已审批的可信输入 —— 它们的内容只要发生任何变化,descriptor_hash 就会改变,进而触发再审批。

§first_seen_at: i64

首次见到的时间(Unix epoch 秒)。

§approved_at: Option<i64>

若已审批:对当前 descriptor_hash审批时间(Unix epoch 秒)。

语义澄清(AGENTS.md §5):被审批的是“这一份 hash 所代表的 descriptor 快照“, 而非“本 server 提供的该工具永久可信“。descriptor 内容的任何漂移会让 hash 改变, 下游必须把 Some(_) && descriptor_hash == current 作为唯一可信判据。

Trait Implementations§

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impl Clone for ToolDescriptor

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fn clone(&self) -> ToolDescriptor

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for ToolDescriptor

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for ToolDescriptor

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Eq for ToolDescriptor

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impl PartialEq for ToolDescriptor

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for ToolDescriptor

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

Serialize this value into the given Serde serializer. Read more
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impl StructuralPartialEq for ToolDescriptor

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.