moonbitstack/moonmcp/tools

README
U
Bearer
U
CacheScope
U
Caching
U
Call
U
Cancellations
U
Channel
U
Client
U
Context
U
Facts
U
FastMCPError
U
Hidden
U
Layer
U
Lines
U
Listing
U
Memory
U
Message
U
Namespace
U
Next
U
Operation
U
Principal
U
Prompt
U
Provider
U
RateLimiting
U
Refused
U
Resource
U
ResourceTemplate
U
Scope
U
Server
U
Span
U
Tagged
U
Telemetry
U
Tool
U
ToolResult
U
Transform
V
decode
V
decode_option
V
text_block

moonbitstack/moonmcp/tools does not have a README file

Tool

pub(all) struct Tool {
  component : @moonbitstack/moonmcp/component.ComponentBase
ComponentBase
  parameters : @moonbitlang/core/json.Json
Json
  output_schema : @moonbitlang/core/json.Json
Json?
  annotations : @moonbitstack/moonmcp/types.ToolAnnotations
ToolAnnotations?
  execution : @moonbitstack/moonmcp/types.ToolExecution
ToolExecution?
  timeout : Double?
  run_fn : async (Map[String, @moonbitlang/core/json.Json
Json]) -> ToolResult raise @moonbitstack/moonmcp/exceptions.FastMCPError
FastMCPError
  context_run_fn : async (Map[String, @moonbitlang/core/json.Json
Json], @moonbitstack/moonmcp/context.Context
Context) -> ToolResult raise @moonbitstack/moonmcp/exceptions.FastMCPError
FastMCPError?
}

A registered tool.

impl Component for Tool

fn base(self : Tool) -> @moonbitstack/moonmcp/component.ComponentBase
ComponentBase

source

fn get_meta(self : Tool) -> Map[String, @moonbitlang/core/json.Json
Json]

source

fn identifier(self : Tool) -> String

source

fn key(self : Tool) -> String

source

Tool::base

source

fn Tool::base(self : Tool) -> @moonbitstack/moonmcp/component.ComponentBase
ComponentBase

Tool::convert_result

source

fn Tool::convert_result(self : Tool, raw_value : @moonbitlang/core/json.Json
Json) -> ToolResult raise @moonbitstack/moonmcp/exceptions.FastMCPError
FastMCPError

Convert a raw return value to a ToolResult, honouring the declared output schema.

Tool::dispatch

source

async fn Tool::dispatch(self : Tool, arguments : Map[String, @moonbitlang/core/json.Json
Json]) -> ToolResult raise @moonbitstack/moonmcp/exceptions.FastMCPError
FastMCPError

Server entry point for tool execution; subclasses customise dispatch by supplying a different run_fn at construction.

Tool::get_meta

source

fn Tool::get_meta(self : Tool) -> Map[String, @moonbitlang/core/json.Json
Json]

Tool::identifier

source

fn Tool::identifier(self : Tool) -> String

Tool::key

source

fn Tool::key(self : Tool) -> String

Tool::new

source

fn Tool::new(name : String, parameters~ : @moonbitlang/core/json.Json
Json, run_fn~ : async (Map[String, @moonbitlang/core/json.Json
Json]) -> ToolResult raise @moonbitstack/moonmcp/exceptions.FastMCPError
FastMCPError, version? : String, title? : String, description? : String, icons? : Array[@moonbitstack/moonmcp/types.Icon
Icon], tags? : @moonbitlang/core/set.Set
Set[String], meta? : Map[String, @moonbitlang/core/json.Json
Json], annotations? : @moonbitstack/moonmcp/types.ToolAnnotations
ToolAnnotations, output_schema? : @moonbitlang/core/json.Json
Json, execution? : @moonbitstack/moonmcp/types.ToolExecution
ToolExecution, timeout? : Double, task_config? : @moonbitstack/moonmcp/tasks.TaskConfig
TaskConfig, context_run_fn? : async (Map[String, @moonbitlang/core/json.Json
Json], @moonbitstack/moonmcp/context.Context
Context) -> ToolResult raise @moonbitstack/moonmcp/exceptions.FastMCPError
FastMCPError) -> Tool raise @moonbitstack/moonmcp/exceptions.FastMCPError
FastMCPError

Tool::run

source

async fn Tool::run(self : Tool, arguments : Map[String, @moonbitlang/core/json.Json
Json]) -> ToolResult raise @moonbitstack/moonmcp/exceptions.FastMCPError
FastMCPError

Run the tool with arguments.

Tool::run_with

source

async fn Tool::run_with(self : Tool, arguments : Map[String, @moonbitlang/core/json.Json
Json], context : @moonbitstack/moonmcp/context.Context
Context) -> ToolResult raise @moonbitstack/moonmcp/exceptions.FastMCPError
FastMCPError

Run the tool with arguments and the request it serves. A tool registered from a function that wants only its arguments ignores the context.

Tool::to_mcp_tool

source

fn Tool::to_mcp_tool(self : Tool) -> @moonbitstack/moonmcp/types.Tool
Tool

Convert the tool to its wire representation.

Title precedence: explicit title, then annotation title, then a title derived from the name.

ToolResult

source

pub(all) struct ToolResult {
  content : Array[@moonbitstack/moonmcp/types.ContentBlock
ContentBlock]
  structured_content : Map[String, @moonbitlang/core/json.Json
Json]?
  meta : Map[String, @moonbitlang/core/json.Json
Json]?
  is_error : Bool
  raw_mcp_result : @moonbitstack/moonmcp/types.CallToolResult
CallToolResult?
  input_required : @moonbitstack/moonmcp/types.InputRequiredResult
InputRequiredResult?
} derive(Eq, @moonbitlang/core/debug.Debug
Debug)

The canonical result of running a tool.

ToolResult::equal

source

fn ToolResult::equal(ToolResult, ToolResult) -> Bool

ToolResult::from_mcp_result

source

fn ToolResult::from_mcp_result(result : @moonbitstack/moonmcp/types.CallToolResult
CallToolResult) -> ToolResult

Wrap a protocol result while preserving its exact wire representation.

ToolResult::input_required

source

fn ToolResult::input_required(input_required : @moonbitstack/moonmcp/types.InputRequiredResult
InputRequiredResult) -> ToolResult

Wrap a client-input ask (SEP-2322) as an ordinary tool result.

ToolResult::is_input_required

source

fn ToolResult::is_input_required(self : ToolResult) -> Bool

Whether this result carries a client-input ask (SEP-2322).

ToolResult::new

source

fn ToolResult::new(content? : Array[@moonbitstack/moonmcp/types.ContentBlock
ContentBlock], structured_content? : Map[String, @moonbitlang/core/json.Json
Json], meta? : Map[String, @moonbitlang/core/json.Json
Json], is_error? : Bool) -> ToolResult raise @moonbitstack/moonmcp/exceptions.FastMCPError
FastMCPError

Create a tool result from explicit parts; content or structured content must be provided.

ToolResult::not_equal

source

fn ToolResult::not_equal(x : ToolResult, y : ToolResult) -> Bool

ToolResult::to_mcp_result

source

fn ToolResult::to_mcp_result(self : ToolResult) -> @moonbitstack/moonmcp/types.CallToolResult
CallToolResult

Convert to the protocol result, keeping the original wire representation when one was preserved.

ToolResult::to_repr

source

fn ToolResult::to_repr(ToolResult) -> @moonbitlang/core/debug.Repr
Repr

convert_to_content

source

fn convert_to_content(result : @moonbitlang/core/json.Json
Json) -> Array[@moonbitstack/moonmcp/types.ContentBlock
ContentBlock] raise @moonbitlang/core/json.JsonDecodeError
JsonDecodeError

Convert a raw result to a sequence of content blocks.

default_title

source

fn default_title(name : String) -> String

Derive a display title from a tool name.

The MCP spec says clients should fall back to name for display when title is absent, but some clients instead drop the tool entirely. Always emitting a title avoids depending on that fallback.

is_valid_tool_name

source

fn is_valid_tool_name(name : String) -> Bool

Whether a tool name is valid per the MCP specification (SEP-986): 1-64 characters of letters, digits, underscores and hyphens.

Source Files

Install

Download zip

Model Context Protocol servers and clients for MoonBit.

mcpmodel-context-protocolllmagentaiai-agenttoolstool-callingpromptsresourceselicitationserverclientjson-rpcjsonrpcstdiostreamable-httpsseoauthasgiannotationsfastmcpprovidertransformmiddlewarecachingrate-limitingtelemetryobservabilitymoonbit

moonbitstack

Apache-2.0

github.com/moonbitstack/moonmcp

Updated 8 hours ago

126 downloads

Site source Report issue Modules Skills CLI Build queue Statistics

#Tool

#Tool::base

#Tool::convert_result

#Tool::dispatch

#Tool::get_meta

#Tool::identifier

#Tool::key

#Tool::new

#Tool::run

#Tool::run_with

#Tool::to_mcp_tool

#ToolResult

#ToolResult::equal

#ToolResult::from_mcp_result

#ToolResult::input_required

#ToolResult::is_input_required

#ToolResult::new

#ToolResult::not_equal

#ToolResult::to_mcp_result

#ToolResult::to_repr

#convert_to_content

#default_title

#is_valid_tool_name

Source Files

Tool

Tool::base

Tool::convert_result

Tool::dispatch

Tool::get_meta

Tool::identifier

Tool::key

Tool::new

Tool::run

Tool::run_with

Tool::to_mcp_tool

ToolResult

ToolResult::equal

ToolResult::from_mcp_result

ToolResult::input_required

ToolResult::is_input_required

ToolResult::new

ToolResult::not_equal

ToolResult::to_mcp_result

ToolResult::to_repr

convert_to_content

default_title

is_valid_tool_name