feat: add tool annotations for build-in tools (#1939)

This commit is contained in:
Yingjie He
2025-03-31 16:46:55 -07:00
committed by GitHub
parent f184449f81
commit 680523297b
23 changed files with 369 additions and 9 deletions

View File

@@ -5,6 +5,7 @@ use goose::config::extensions::name_to_key;
use goose::config::{Config, ConfigError, ExperimentManager, ExtensionEntry, ExtensionManager};
use goose::message::Message;
use goose::providers::{create, providers};
use mcp_core::tool::ToolAnnotations;
use mcp_core::Tool;
use serde_json::{json, Value};
use std::collections::HashMap;
@@ -349,6 +350,13 @@ pub async fn configure_provider_dialog() -> Result<bool, Box<dyn Error>> {
"location": {"type": "string"}
}
}),
Some(ToolAnnotations {
title: Some("Get weather".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
vec![sample_tool]
} else {

View File

@@ -13,7 +13,7 @@ use mcp_core::{
prompt::Prompt,
protocol::ServerCapabilities,
resource::Resource,
tool::Tool,
tool::{Tool, ToolAnnotations},
Content,
};
use mcp_server::router::CapabilitiesBuilder;
@@ -74,6 +74,13 @@ impl ComputerControllerRouter {
}
}
}),
Some(ToolAnnotations {
title: Some("Web Scrape".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: true,
}),
);
let computer_control_desc = match std::env::consts::OS {
@@ -139,6 +146,7 @@ impl ComputerControllerRouter {
}
}
}),
None,
);
let quick_script_desc = match std::env::consts::OS {
@@ -189,6 +197,7 @@ impl ComputerControllerRouter {
}
}
}),
None,
);
let cache_tool = Tool::new(
@@ -215,6 +224,7 @@ impl ComputerControllerRouter {
}
}
}),
None,
);
let pdf_tool = Tool::new(
@@ -242,6 +252,13 @@ impl ComputerControllerRouter {
}
}
}),
Some(ToolAnnotations {
title: Some("PDF process".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: true,
open_world_hint: false,
}),
);
let docx_tool = Tool::new(
@@ -340,6 +357,7 @@ impl ComputerControllerRouter {
}
}
}),
None,
);
let make_presentation_tool = Tool::new(
@@ -380,6 +398,7 @@ impl ComputerControllerRouter {
}
}
}),
None,
);
let xlsx_tool = Tool::new(
@@ -441,6 +460,7 @@ impl ComputerControllerRouter {
}
}
}),
None,
);
// choose_app_strategy().cache_dir()

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@@ -17,13 +17,16 @@ use tokio::process::Command;
use url::Url;
use include_dir::{include_dir, Dir};
use mcp_core::prompt::{Prompt, PromptArgument, PromptTemplate};
use mcp_core::{
handler::{PromptError, ResourceError, ToolError},
protocol::ServerCapabilities,
resource::Resource,
tool::Tool,
};
use mcp_core::{
prompt::{Prompt, PromptArgument, PromptTemplate},
tool::ToolAnnotations,
};
use mcp_server::router::CapabilitiesBuilder;
use mcp_server::Router;
@@ -161,6 +164,7 @@ impl DeveloperRouter {
"command": {"type": "string"}
}
}),
None,
);
let text_editor_tool = Tool::new(
@@ -199,6 +203,7 @@ impl DeveloperRouter {
"file_text": {"type": "string"}
}
}),
None,
);
let list_windows_tool = Tool::new(
@@ -213,6 +218,13 @@ impl DeveloperRouter {
"required": [],
"properties": {}
}),
Some(ToolAnnotations {
title: Some("List available windows".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
let screen_capture_tool = Tool::new(
@@ -241,6 +253,13 @@ impl DeveloperRouter {
}
}
}),
Some(ToolAnnotations {
title: Some("Capture a full screen".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
let image_processor_tool = Tool::new(
@@ -263,6 +282,13 @@ impl DeveloperRouter {
}
}
}),
Some(ToolAnnotations {
title: Some("Process Image".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: true,
open_world_hint: false,
}),
);
// Get base instructions and working directory

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@@ -4,6 +4,7 @@ pub mod storage;
use anyhow::{Context, Error};
use base64::Engine;
use indoc::indoc;
use mcp_core::tool::ToolAnnotations;
use oauth_pkce::PkceOAuth2Client;
use regex::Regex;
use serde_json::{json, Value};
@@ -209,6 +210,13 @@ impl GoogleDriveRouter {
}
},
}),
Some(ToolAnnotations {
title: Some("Search GDrive".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
let read_tool = Tool::new(
@@ -232,6 +240,13 @@ impl GoogleDriveRouter {
},
"required": ["uri"],
}),
Some(ToolAnnotations {
title: Some("Read GDrive".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
let upload_tool = Tool::new(
@@ -270,6 +285,13 @@ impl GoogleDriveRouter {
},
"required": ["name", "mimeType"],
}),
Some(ToolAnnotations {
title: Some("Upload file to GDrive".to_string()),
read_only_hint: false,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
let create_file_tool = Tool::new(
@@ -313,6 +335,13 @@ impl GoogleDriveRouter {
},
"required": ["name", "fileType"],
}),
Some(ToolAnnotations {
title: Some("Create new file in GDrive".to_string()),
read_only_hint: false,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
let move_file_tool = Tool::new(
@@ -339,6 +368,13 @@ impl GoogleDriveRouter {
},
"required": ["fileId", "currentFolderId", "newFolderId"],
}),
Some(ToolAnnotations {
title: Some("Move file".to_string()),
read_only_hint: false,
destructive_hint: true,
idempotent_hint: false,
open_world_hint: false,
}),
);
let update_tool = Tool::new(
@@ -373,6 +409,13 @@ impl GoogleDriveRouter {
},
"required": ["fileId", "mimeType"],
}),
Some(ToolAnnotations {
title: Some("Update a file".to_string()),
read_only_hint: false,
destructive_hint: true,
idempotent_hint: false,
open_world_hint: false,
}),
);
let update_file_tool = Tool::new(
@@ -408,6 +451,13 @@ impl GoogleDriveRouter {
},
"required": ["fileId", "fileType"],
}),
Some(ToolAnnotations {
title: Some("Update a file".to_string()),
read_only_hint: false,
destructive_hint: true,
idempotent_hint: false,
open_world_hint: false,
}),
);
let sheets_tool = Tool::new(
@@ -468,6 +518,7 @@ impl GoogleDriveRouter {
},
"required": ["spreadsheetId", "operation"],
}),
None,
);
let get_comments_tool = Tool::new(
@@ -486,6 +537,13 @@ impl GoogleDriveRouter {
},
"required": ["fileId"],
}),
Some(ToolAnnotations {
title: Some("List file comments".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
let create_comment_tool = Tool::new(
@@ -508,6 +566,13 @@ impl GoogleDriveRouter {
},
"required": ["fileId", "comment"],
}),
Some(ToolAnnotations {
title: Some("Create file comment".to_string()),
read_only_hint: false,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
let reply_tool = Tool::new(
@@ -538,6 +603,13 @@ impl GoogleDriveRouter {
},
"required": ["fileId", "commentId", "content"],
}),
Some(ToolAnnotations {
title: Some("Reply to a comment".to_string()),
read_only_hint: false,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
let list_drives_tool = Tool::new(
@@ -555,6 +627,13 @@ impl GoogleDriveRouter {
}
},
}),
Some(ToolAnnotations {
title: Some("List shared google drives".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
let instructions = indoc::formatdoc! {r#"

View File

@@ -237,6 +237,7 @@ impl JetBrainsProxy {
name: name.to_string(),
description: first_sentence,
input_schema,
annotations: None,
})
} else {
debug!("Skipping invalid tool entry: {:?}", t);

View File

@@ -16,7 +16,7 @@ use mcp_core::{
prompt::Prompt,
protocol::ServerCapabilities,
resource::Resource,
tool::{Tool, ToolCall},
tool::{Tool, ToolAnnotations, ToolCall},
Content,
};
use mcp_server::router::CapabilitiesBuilder;
@@ -52,6 +52,13 @@ impl MemoryRouter {
},
"required": ["category", "data", "is_global"]
}),
Some(ToolAnnotations {
title: Some("Remember Memory".to_string()),
read_only_hint: false,
destructive_hint: false,
idempotent_hint: true,
open_world_hint: false,
}),
);
let retrieve_memories = Tool::new(
@@ -65,6 +72,13 @@ impl MemoryRouter {
},
"required": ["category", "is_global"]
}),
Some(ToolAnnotations {
title: Some("Retrieve Memory".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
let remove_memory_category = Tool::new(
@@ -78,6 +92,13 @@ impl MemoryRouter {
},
"required": ["category", "is_global"]
}),
Some(ToolAnnotations {
title: Some("Remove Memory Category".to_string()),
read_only_hint: false,
destructive_hint: true,
idempotent_hint: false,
open_world_hint: false,
}),
);
let remove_specific_memory = Tool::new(
@@ -92,6 +113,13 @@ impl MemoryRouter {
},
"required": ["category", "memory_content", "is_global"]
}),
Some(ToolAnnotations {
title: Some("Remove Specific Memory".to_string()),
read_only_hint: false,
destructive_hint: true,
idempotent_hint: false,
open_world_hint: false,
}),
);
let instructions = formatdoc! {r#"

View File

@@ -10,7 +10,7 @@ use mcp_core::{
protocol::ServerCapabilities,
resource::Resource,
role::Role,
tool::Tool,
tool::{Tool, ToolAnnotations},
};
use mcp_server::router::CapabilitiesBuilder;
use mcp_server::Router;
@@ -45,6 +45,13 @@ impl TutorialRouter {
}
}
}),
Some(ToolAnnotations {
title: Some("Load Tutorial".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
// Get base instructions and available tutorials

View File

@@ -58,7 +58,7 @@ async fn main() -> Result<()> {
.complete(
"You are a helpful assistant. Please describe any text you see in the image.",
&messages,
&[Tool::new("view_image", "View an image", input_schema)],
&[Tool::new("view_image", "View an image", input_schema, None)],
)
.await?;

View File

@@ -245,6 +245,7 @@ impl Capabilities {
format!("{}__{}", name, tool.name),
&tool.description,
tool.input_schema,
tool.annotations,
));
}

View File

@@ -2,6 +2,7 @@ use crate::agents::capabilities::Capabilities;
use crate::message::{Message, MessageContent, ToolRequest};
use chrono::Utc;
use indoc::indoc;
use mcp_core::tool::ToolAnnotations;
use mcp_core::{tool::Tool, TextContent};
use serde_json::{json, Value};
@@ -50,6 +51,13 @@ fn create_read_only_tool() -> Tool {
},
"required": []
}),
Some(ToolAnnotations {
title: Some("Check tool operation".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
)
}

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@@ -21,7 +21,7 @@ use anyhow::{anyhow, Result};
use indoc::indoc;
use mcp_core::prompt::Prompt;
use mcp_core::protocol::GetPromptResult;
use mcp_core::tool::Tool;
use mcp_core::tool::{Tool, ToolAnnotations};
use serde_json::{json, Value};
/// Reference implementation of an Agent
@@ -102,6 +102,13 @@ impl Agent for ReferenceAgent {
"extension_name": {"type": "string", "description": "Optional extension name"}
}
}),
Some(ToolAnnotations {
title: Some("Read a resource".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
let list_resources_tool = Tool::new(
@@ -120,6 +127,13 @@ impl Agent for ReferenceAgent {
"extension_name": {"type": "string", "description": "Optional extension name"}
}
}),
Some(ToolAnnotations {
title: Some("List resources".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
if capabilities.supports_resources() {

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@@ -3,6 +3,7 @@
/// truncation method. Still cannot read resources.
use async_trait::async_trait;
use futures::stream::BoxStream;
use mcp_core::tool::ToolAnnotations;
use std::collections::HashMap;
use std::sync::Arc;
use tokio::sync::mpsc;
@@ -199,6 +200,13 @@ impl Agent for SummarizeAgent {
"extension_name": {"type": "string", "description": "Optional extension name"}
}
}),
Some(ToolAnnotations {
title: Some("Read a resource".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
let list_resources_tool = Tool::new(
@@ -217,6 +225,13 @@ impl Agent for SummarizeAgent {
"extension_name": {"type": "string", "description": "Optional extension name"}
}
}),
Some(ToolAnnotations {
title: Some("List resources".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
if capabilities.supports_resources() {

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@@ -2,6 +2,7 @@
/// It makes no attempt to handle context limits, and cannot read resources
use async_trait::async_trait;
use futures::stream::BoxStream;
use mcp_core::tool::ToolAnnotations;
use std::collections::HashMap;
use std::sync::Arc;
use tokio::sync::mpsc;
@@ -195,6 +196,13 @@ impl Agent for TruncateAgent {
"extension_name": {"type": "string", "description": "Optional extension name"}
}
}),
Some(ToolAnnotations {
title: Some("Read a resource".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
let list_resources_tool = Tool::new(
@@ -213,6 +221,13 @@ impl Agent for TruncateAgent {
"extension_name": {"type": "string", "description": "Optional extension name"}
}
}),
Some(ToolAnnotations {
title: Some("List resources".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
);
if capabilities.supports_resources() {

View File

@@ -530,6 +530,7 @@ mod tests {
}
}
}),
None,
),
Tool::new(
"weather",
@@ -543,6 +544,7 @@ mod tests {
}
}
}),
None,
),
];

View File

@@ -675,6 +675,7 @@ mod tests {
},
"required": ["input"]
}),
None,
);
let spec = format_tools(&[tool])?;
@@ -766,6 +767,7 @@ mod tests {
},
"required": ["input"]
}),
None,
);
let tool2 = Tool::new(
@@ -781,6 +783,7 @@ mod tests {
},
"required": ["input"]
}),
None,
);
let result = format_tools(&[tool1, tool2]);

View File

@@ -351,6 +351,7 @@ mod tests {
input_schema: json!({
"properties": params
}),
annotations: None,
}
}
@@ -494,6 +495,7 @@ mod tests {
input_schema: json!({
"properties": {}
}),
annotations: None,
}];
let result = format_tools(&tools);
assert_eq!(result.len(), 1);

View File

@@ -550,6 +550,7 @@ mod tests {
},
"required": ["input"]
}),
None,
);
let spec = format_tools(&[tool])?;
@@ -641,6 +642,7 @@ mod tests {
},
"required": ["input"]
}),
None,
);
let tool2 = Tool::new(
@@ -656,6 +658,7 @@ mod tests {
},
"required": ["input"]
}),
None,
);
let result = format_tools(&[tool1, tool2]);

View File

@@ -310,6 +310,7 @@ mod tests {
},
"required": ["location"]
}),
annotations: None,
}];
let token_count_without_tools = counter.count_chat_tokens(system_prompt, &messages, &[]);

View File

@@ -127,6 +127,7 @@ impl ProviderTester {
}
}
}),
None,
);
let message = Message::user().with_text("What's the weather like in San Francisco?");

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@@ -245,7 +245,7 @@ where
capabilities: ClientCapabilities,
) -> Result<InitializeResult, Error> {
let params = InitializeParams {
protocol_version: "2024-11-05".to_string(),
protocol_version: "2025-03-26".to_string(),
client_info: info,
capabilities,
};

View File

@@ -3,6 +3,102 @@
use serde::{Deserialize, Serialize};
use serde_json::Value;
/// Additional properties describing a tool to clients.
///
/// NOTE: all properties in ToolAnnotations are **hints**.
/// They are not guaranteed to provide a faithful description of
/// tool behavior (including descriptive properties like `title`).
///
/// Clients should never make tool use decisions based on ToolAnnotations
/// received from untrusted servers.
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct ToolAnnotations {
/// A human-readable title for the tool.
pub title: Option<String>,
/// If true, the tool does not modify its environment.
///
/// Default: false
#[serde(default)]
pub read_only_hint: bool,
/// If true, the tool may perform destructive updates to its environment.
/// If false, the tool performs only additive updates.
///
/// (This property is meaningful only when `read_only_hint == false`)
///
/// Default: true
#[serde(default = "default_true")]
pub destructive_hint: bool,
/// If true, calling the tool repeatedly with the same arguments
/// will have no additional effect on its environment.
///
/// (This property is meaningful only when `read_only_hint == false`)
///
/// Default: false
#[serde(default)]
pub idempotent_hint: bool,
/// If true, this tool may interact with an "open world" of external
/// entities. If false, the tool's domain of interaction is closed.
/// For example, the world of a web search tool is open, whereas that
/// of a memory tool is not.
///
/// Default: true
#[serde(default = "default_true")]
pub open_world_hint: bool,
}
impl Default for ToolAnnotations {
fn default() -> Self {
ToolAnnotations {
title: None,
read_only_hint: false,
destructive_hint: true,
idempotent_hint: false,
open_world_hint: true,
}
}
}
fn default_true() -> bool {
true
}
/// Implement builder methods for `ToolAnnotations`
impl ToolAnnotations {
pub fn new() -> Self {
Self::default()
}
pub fn with_title(mut self, title: impl Into<String>) -> Self {
self.title = Some(title.into());
self
}
pub fn with_read_only(mut self, read_only: bool) -> Self {
self.read_only_hint = read_only;
self
}
pub fn with_destructive(mut self, destructive: bool) -> Self {
self.destructive_hint = destructive;
self
}
pub fn with_idempotent(mut self, idempotent: bool) -> Self {
self.idempotent_hint = idempotent;
self
}
pub fn with_open_world(mut self, open_world: bool) -> Self {
self.open_world_hint = open_world;
self
}
}
/// A tool that can be used by a model.
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
@@ -13,11 +109,18 @@ pub struct Tool {
pub description: String,
/// A JSON Schema object defining the expected parameters for the tool
pub input_schema: Value,
/// Optional additional tool information.
pub annotations: Option<ToolAnnotations>,
}
impl Tool {
/// Create a new tool with the given name and description
pub fn new<N, D>(name: N, description: D, input_schema: Value) -> Self
pub fn new<N, D>(
name: N,
description: D,
input_schema: Value,
annotations: Option<ToolAnnotations>,
) -> Self
where
N: Into<String>,
D: Into<String>,
@@ -26,6 +129,7 @@ impl Tool {
name: name.into(),
description: description.into(),
input_schema,
annotations,
}
}
}

View File

@@ -2,6 +2,7 @@ use anyhow::Result;
use mcp_core::content::Content;
use mcp_core::handler::{PromptError, ResourceError};
use mcp_core::prompt::{Prompt, PromptArgument};
use mcp_core::tool::ToolAnnotations;
use mcp_core::{handler::ToolError, protocol::ServerCapabilities, resource::Resource, tool::Tool};
use mcp_server::router::{CapabilitiesBuilder, RouterService};
use mcp_server::{ByteTransport, Router, Server};
@@ -76,6 +77,13 @@ impl Router for CounterRouter {
"properties": {},
"required": []
}),
Some(ToolAnnotations {
title: Some("Increment Tool".to_string()),
read_only_hint: false,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
),
Tool::new(
"decrement".to_string(),
@@ -85,6 +93,13 @@ impl Router for CounterRouter {
"properties": {},
"required": []
}),
Some(ToolAnnotations {
title: Some("Decrement Tool".to_string()),
read_only_hint: false,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
),
Tool::new(
"get_value".to_string(),
@@ -94,6 +109,13 @@ impl Router for CounterRouter {
"properties": {},
"required": []
}),
Some(ToolAnnotations {
title: Some("Get Value Tool".to_string()),
read_only_hint: true,
destructive_hint: false,
idempotent_hint: false,
open_world_hint: false,
}),
),
]
}

View File

@@ -116,7 +116,7 @@ pub trait Router: Send + Sync + 'static {
) -> impl Future<Output = Result<JsonRpcResponse, RouterError>> + Send {
async move {
let result = InitializeResult {
protocol_version: "2024-11-05".to_string(),
protocol_version: "2025-03-26".to_string(),
capabilities: self.capabilities().clone(),
server_info: Implementation {
name: self.name(),