mcp

package

v0.7.0 Latest Latest Go to latest Published: Jun 1, 2026 License: MIT Imports: 12 Imported by: 0

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Valid go.mod file
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Repository

github.com/ProductBuildersHQ/visionspec

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Documentation ¶

Overview ¶

Package mcp provides MCP client for external context sources.

Index ¶

type Client
- func NewClient(command string, args []string, env map[string]string) (*Client, error)
type RPCError
- func (e *RPCError) Error() string
type Request
type Response
type Source
- func NewSource(name string, cfg ctx.MCPServerConfig) (*Source, error)
type Tool
type ToolContent

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Client ¶

type Client struct {
	// contains filtered or unexported fields
}

Client manages communication with an MCP server.

func NewClient ¶

func NewClient(command string, args []string, env map[string]string) (*Client, error)

NewClient creates a new MCP client by spawning the server process.

func (*Client) Call ¶

func (c *Client) Call(ctx context.Context, method string, params any, result any) error

Call makes a synchronous RPC call.

func (*Client) CallTool ¶

func (c *Client) CallTool(ctx context.Context, name string, args map[string]any) ([]ToolContent, error)

CallTool invokes a tool on the MCP server.

func (*Client) Close ¶

func (c *Client) Close() error

Close shuts down the MCP client.

func (*Client) Initialize ¶

func (c *Client) Initialize(ctx context.Context) error

Initialize sends the initialize request to the MCP server.

func (*Client) ListTools ¶

func (c *Client) ListTools(ctx context.Context) ([]Tool, error)

ListTools returns the available tools from the MCP server.

func (*Client) Notify ¶

func (c *Client) Notify(method string, params any) error

Notify sends a notification (no response expected).

type RPCError ¶

type RPCError struct {
	Code    int    `json:"code"`
	Message string `json:"message"`
	Data    any    `json:"data,omitempty"`
}

RPCError represents a JSON-RPC error.

func (*RPCError) Error ¶

func (e *RPCError) Error() string

type Request ¶

type Request struct {
	JSONRPC string `json:"jsonrpc"`
	ID      int64  `json:"id"`
	Method  string `json:"method"`
	Params  any    `json:"params,omitempty"`
}

Request represents a JSON-RPC request.

type Response ¶

type Response struct {
	JSONRPC string          `json:"jsonrpc"`
	ID      int64           `json:"id"`
	Result  json.RawMessage `json:"result,omitempty"`
	Error   *RPCError       `json:"error,omitempty"`
}

Response represents a JSON-RPC response.

type Source ¶

type Source struct {
	// contains filtered or unexported fields
}

Source fetches context from an MCP server.

func NewSource ¶

func NewSource(name string, cfg ctx.MCPServerConfig) (*Source, error)

NewSource creates a new MCP source from configuration.

func (*Source) Close ¶

func (s *Source) Close() error

Close shuts down the MCP client.

func (*Source) Fetch ¶

func (s *Source) Fetch(c context.Context) (*ctx.ContextData, error)

Fetch retrieves context from the MCP server.

func (*Source) Name ¶

func (s *Source) Name() string

Name returns the source identifier.

func (*Source) String ¶

func (s *Source) String() string

String returns a human-readable description.

func (*Source) Type ¶

func (s *Source) Type() ctx.SourceType

Type returns the source type.

type Tool ¶

type Tool struct {
	Name        string          `json:"name"`
	Description string          `json:"description"`
	InputSchema json.RawMessage `json:"inputSchema"`
}

Tool represents an MCP tool.

type ToolContent ¶

type ToolContent struct {
	Type string `json:"type"`
	Text string `json:"text,omitempty"`
}

ToolContent represents content returned by a tool.

Source Files ¶

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