@langchain/core/dist/tools/index.cjs.map

Core LangChain.js abstractions and schemas

{"version":3,"file":"index.cjs","names":["BaseLangChain","fields?: ToolParams","input: TInput","config?: TConfig","toolInput: Exclude<\n      StructuredToolCallInput<SchemaT, SchemaInputT>,\n      ToolCall\n    >","enrichedConfig: ToolRunnableConfig","ensureConfig","mergeConfigs","_isToolCall","arg: TArg","configArg?: TConfig","tags?: string[]","parsed: SchemaOutputT","isInteropZodSchema","interopParseAsync","isInteropZodError","z4","ToolInputParsingException","result","parseCallbackConfigArg","CallbackManager","toolCallId: string | undefined","_configHasToolCallId","z","callbacks?: TConfig","fields: DynamicToolInput<ToolOutputT>","input: string","runManager?: CallbackManagerForToolRun","parentConfig?: ToolRunnableConfig","fields: DynamicStructuredToolInput<SchemaT, SchemaOutputT, ToolOutputT>","arg: Parameters<\n      DynamicStructuredToolInput<SchemaT, SchemaOutputT>[\"func\"]\n    >[0]","parentConfig?: RunnableConfig","func: (\n    input: SchemaOutputT,\n    runtime: ToolRuntime<TState, TContext>\n  ) => ToolOutputT | Promise<ToolOutputT>","fields: ToolWrapperParams<SchemaT>","isSimpleStringZodSchema","validatesOnlyStrings","patchConfig","AsyncLocalStorageProviderSingleton","pickRunnableConfigKeys","listener: (() => void) | undefined","getAbortSignalError","params: {\n  content: TOutput;\n  name: string;\n  artifact?: unknown;\n  toolCallId?: string;\n  metadata?: Record<string, unknown>;\n}","isDirectToolOutput","ToolMessage","content: unknown"],"sources":["../../src/tools/index.ts"],"sourcesContent":["import { z } from \"zod/v3\";\nimport { z as z4, ZodError } from \"zod/v4\";\nimport {\n  validate,\n  type Schema as ValidationSchema,\n} from \"@cfworker/json-schema\";\nimport {\n  CallbackManager,\n  CallbackManagerForToolRun,\n  parseCallbackConfigArg,\n} from \"../callbacks/manager.js\";\nimport { BaseLangChain } from \"../language_models/base.js\";\nimport {\n  mergeConfigs,\n  ensureConfig,\n  patchConfig,\n  pickRunnableConfigKeys,\n  type RunnableConfig,\n} from \"../runnables/config.js\";\nimport type { RunnableFunc } from \"../runnables/base.js\";\nimport { isDirectToolOutput, ToolCall, ToolMessage } from \"../messages/tool.js\";\nimport { AsyncLocalStorageProviderSingleton } from \"../singletons/index.js\";\nimport type { RunnableToolLike } from \"../runnables/base.js\";\nimport {\n  _configHasToolCallId,\n  _isToolCall,\n  ToolInputParsingException,\n} from \"./utils.js\";\nimport {\n  type InferInteropZodInput,\n  type InferInteropZodOutput,\n  type InteropZodObject,\n  type InteropZodType,\n  interopParseAsync,\n  isSimpleStringZodSchema,\n  isInteropZodError,\n  isInteropZodSchema,\n  type ZodStringV3,\n  type ZodStringV4,\n  type ZodObjectV3,\n  type ZodObjectV4,\n} from \"../utils/types/zod.js\";\nimport { getAbortSignalError } from \"../utils/signal.js\";\nimport type {\n  StructuredToolCallInput,\n  ToolInputSchemaBase,\n  ToolReturnType,\n  ResponseFormat,\n  ToolInputSchemaInputType,\n  ToolInputSchemaOutputType,\n  ToolParams,\n  ToolRunnableConfig,\n  StructuredToolInterface,\n  DynamicToolInput,\n  DynamicStructuredToolInput,\n  StringInputToolSchema,\n  ToolInterface,\n  ToolOutputType,\n  ToolRuntime,\n} from \"./types.js\";\nimport { type JSONSchema, validatesOnlyStrings } from \"../utils/json_schema.js\";\n\nexport type {\n  BaseDynamicToolInput,\n  ContentAndArtifact,\n  DynamicToolInput,\n  DynamicStructuredToolInput,\n  ResponseFormat,\n  StructuredToolCallInput,\n  StructuredToolInterface,\n  StructuredToolParams,\n  ToolInterface,\n  ToolParams,\n  ToolReturnType,\n  ToolRunnableConfig,\n  ToolInputSchemaBase as ToolSchemaBase,\n} from \"./types.js\";\n\nexport {\n  isLangChainTool,\n  isRunnableToolLike,\n  isStructuredTool,\n  isStructuredToolParams,\n  type ToolRuntime,\n} from \"./types.js\";\n\nexport { ToolInputParsingException };\n/**\n * Base class for Tools that accept input of any shape defined by a Zod schema.\n */\nexport abstract class StructuredTool<\n    SchemaT = ToolInputSchemaBase,\n    SchemaOutputT = ToolInputSchemaOutputType<SchemaT>,\n    SchemaInputT = ToolInputSchemaInputType<SchemaT>,\n    ToolOutputT = ToolOutputType\n  >\n  extends BaseLangChain<\n    StructuredToolCallInput<SchemaT, SchemaInputT>,\n    ToolOutputT | ToolMessage\n  >\n  implements StructuredToolInterface<SchemaT, SchemaInputT, ToolOutputT>\n{\n  abstract name: string;\n\n  abstract description: string;\n\n  abstract schema: SchemaT;\n\n  /**\n   * Optional provider-specific extra fields for the tool.\n   *\n   * This is used to pass provider-specific configuration that doesn't fit into\n   * standard tool fields.\n   */\n  extras?: Record<string, unknown>;\n\n  /**\n   * Whether to return the tool's output directly.\n   *\n   * Setting this to true means that after the tool is called,\n   * an agent should stop looping.\n   */\n  returnDirect = false;\n\n  verboseParsingErrors = false;\n\n  get lc_namespace() {\n    return [\"langchain\", \"tools\"];\n  }\n\n  /**\n   * The tool response format.\n   *\n   * If \"content\" then the output of the tool is interpreted as the contents of a\n   * ToolMessage. If \"content_and_artifact\" then the output is expected to be a\n   * two-tuple corresponding to the (content, artifact) of a ToolMessage.\n   *\n   * @default \"content\"\n   */\n  responseFormat?: ResponseFormat = \"content\";\n\n  /**\n   * Default config object for the tool runnable.\n   */\n  defaultConfig?: ToolRunnableConfig;\n\n  constructor(fields?: ToolParams) {\n    super(fields ?? {});\n\n    this.verboseParsingErrors =\n      fields?.verboseParsingErrors ?? this.verboseParsingErrors;\n    this.responseFormat = fields?.responseFormat ?? this.responseFormat;\n    this.defaultConfig = fields?.defaultConfig ?? this.defaultConfig;\n    this.metadata = fields?.metadata ?? this.metadata;\n    this.extras = fields?.extras ?? this.extras;\n  }\n\n  protected abstract _call(\n    arg: SchemaOutputT,\n    runManager?: CallbackManagerForToolRun,\n    parentConfig?: ToolRunnableConfig\n  ): Promise<ToolOutputT>;\n\n  /**\n   * Invokes the tool with the provided input and configuration.\n   * @param input The input for the tool.\n   * @param config Optional configuration for the tool.\n   * @returns A Promise that resolves with the tool's output.\n   */\n  async invoke<\n    TInput extends StructuredToolCallInput<SchemaT, SchemaInputT>,\n    TConfig extends ToolRunnableConfig | undefined\n  >(\n    input: TInput,\n    config?: TConfig\n  ): Promise<ToolReturnType<TInput, TConfig, ToolOutputT>> {\n    let toolInput: Exclude<\n      StructuredToolCallInput<SchemaT, SchemaInputT>,\n      ToolCall\n    >;\n\n    let enrichedConfig: ToolRunnableConfig = ensureConfig(\n      mergeConfigs(this.defaultConfig, config)\n    );\n    if (_isToolCall(input)) {\n      toolInput = input.args as Exclude<\n        StructuredToolCallInput<SchemaT, SchemaInputT>,\n        ToolCall\n      >;\n      enrichedConfig = {\n        ...enrichedConfig,\n        toolCall: input,\n      };\n    } else {\n      toolInput = input as Exclude<\n        StructuredToolCallInput<SchemaT, SchemaInputT>,\n        ToolCall\n      >;\n    }\n\n    return this.call(toolInput, enrichedConfig) as Promise<\n      ToolReturnType<TInput, TConfig, ToolOutputT>\n    >;\n  }\n\n  /**\n   * @deprecated Use .invoke() instead. Will be removed in 0.3.0.\n   *\n   * Calls the tool with the provided argument, configuration, and tags. It\n   * parses the input according to the schema, handles any errors, and\n   * manages callbacks.\n   * @param arg The input argument for the tool.\n   * @param configArg Optional configuration or callbacks for the tool.\n   * @param tags Optional tags for the tool.\n   * @returns A Promise that resolves with a string.\n   */\n  async call<\n    TArg extends StructuredToolCallInput<SchemaT, SchemaInputT>,\n    TConfig extends ToolRunnableConfig | undefined\n  >(\n    arg: TArg,\n    configArg?: TConfig,\n    /** @deprecated */\n    tags?: string[]\n  ): Promise<ToolReturnType<TArg, TConfig, ToolOutputT>> {\n    // Determine the actual input that needs parsing/validation.\n    // If arg is a ToolCall, use its args; otherwise, use arg directly.\n    const inputForValidation = _isToolCall(arg) ? arg.args : arg;\n\n    let parsed: SchemaOutputT; // This will hold the successfully parsed input of the expected output type.\n    if (isInteropZodSchema(this.schema)) {\n      try {\n        // Validate the inputForValidation - TS needs help here as it can't exclude ToolCall based on the check\n        parsed = await interopParseAsync(\n          this.schema as InteropZodType,\n          inputForValidation as Exclude<TArg, ToolCall>\n        );\n      } catch (e) {\n        let message = `Received tool input did not match expected schema`;\n        if (this.verboseParsingErrors) {\n          message = `${message}\\nDetails: ${(e as Error).message}`;\n        }\n        if (isInteropZodError(e)) {\n          message = `${message}\\n\\n${z4.prettifyError(e as ZodError)}`;\n        }\n        // Pass the original raw input arg to the exception\n        throw new ToolInputParsingException(message, JSON.stringify(arg));\n      }\n    } else {\n      const result = validate(\n        inputForValidation,\n        this.schema as ValidationSchema\n      );\n      if (!result.valid) {\n        let message = `Received tool input did not match expected schema`;\n        if (this.verboseParsingErrors) {\n          message = `${message}\\nDetails: ${result.errors\n            .map((e) => `${e.keywordLocation}: ${e.error}`)\n            .join(\"\\n\")}`;\n        }\n        // Pass the original raw input arg to the exception\n        throw new ToolInputParsingException(message, JSON.stringify(arg));\n      }\n      // Assign the validated input to parsed\n      // We cast here because validate() doesn't narrow the type sufficiently for TS, but we know it's valid.\n      parsed = inputForValidation as SchemaOutputT;\n    }\n\n    const config = parseCallbackConfigArg(configArg);\n    const callbackManager_ = CallbackManager.configure(\n      config.callbacks,\n      this.callbacks,\n      config.tags || tags,\n      this.tags,\n      config.metadata,\n      this.metadata,\n      { verbose: this.verbose }\n    );\n    const runManager = await callbackManager_?.handleToolStart(\n      this.toJSON(),\n      // Log the original raw input arg\n      typeof arg === \"string\" ? arg : JSON.stringify(arg),\n      config.runId,\n      undefined,\n      undefined,\n      undefined,\n      config.runName\n    );\n    delete config.runId;\n    let result;\n    try {\n      // Pass the correctly typed parsed input to _call\n      result = await this._call(parsed, runManager, config);\n    } catch (e) {\n      await runManager?.handleToolError(e);\n      throw e;\n    }\n    let content;\n    let artifact;\n    if (this.responseFormat === \"content_and_artifact\") {\n      if (Array.isArray(result) && result.length === 2) {\n        [content, artifact] = result;\n      } else {\n        throw new Error(\n          `Tool response format is \"content_and_artifact\" but the output was not a two-tuple.\\nResult: ${JSON.stringify(\n            result\n          )}`\n        );\n      }\n    } else {\n      content = result;\n    }\n\n    let toolCallId: string | undefined;\n    // Extract toolCallId ONLY if the original arg was a ToolCall\n    if (_isToolCall(arg)) {\n      toolCallId = arg.id;\n    }\n    // Or if it was provided in the config's toolCall property\n    if (!toolCallId && _configHasToolCallId(config)) {\n      toolCallId = config.toolCall.id;\n    }\n\n    const formattedOutput = _formatToolOutput<ToolOutputT>({\n      content,\n      artifact,\n      toolCallId,\n      name: this.name,\n      metadata: this.metadata,\n    });\n    await runManager?.handleToolEnd(formattedOutput);\n    return formattedOutput as ToolReturnType<TArg, TConfig, ToolOutputT>;\n  }\n}\n\n/**\n * Base class for Tools that accept input as a string.\n */\nexport abstract class Tool<ToolOutputT = ToolOutputType>\n  extends StructuredTool<\n    StringInputToolSchema,\n    ToolInputSchemaOutputType<StringInputToolSchema>,\n    ToolInputSchemaInputType<StringInputToolSchema>,\n    ToolOutputT\n  >\n  implements\n    ToolInterface<\n      StringInputToolSchema,\n      ToolInputSchemaInputType<StringInputToolSchema>,\n      ToolOutputT\n    >\n{\n  schema = z\n    .object({ input: z.string().optional() })\n    .transform((obj) => obj.input);\n\n  constructor(fields?: ToolParams) {\n    super(fields);\n  }\n\n  /**\n   * @deprecated Use .invoke() instead. Will be removed in 0.3.0.\n   *\n   * Calls the tool with the provided argument and callbacks. It handles\n   * string inputs specifically.\n   * @param arg The input argument for the tool, which can be a string, undefined, or an input of the tool's schema.\n   * @param callbacks Optional callbacks for the tool.\n   * @returns A Promise that resolves with a string.\n   */\n  // Match the base class signature including the generics and conditional return type\n  call<\n    TArg extends string | undefined | z.input<this[\"schema\"]> | ToolCall,\n    TConfig extends ToolRunnableConfig | undefined\n  >(\n    arg: TArg,\n    callbacks?: TConfig\n  ): Promise<ToolReturnType<NonNullable<TArg>, TConfig, ToolOutputT>> {\n    // Prepare the input for the base class call method.\n    // If arg is string or undefined, wrap it; otherwise, pass ToolCall or { input: ... } directly.\n    const structuredArg =\n      typeof arg === \"string\" || arg == null ? { input: arg } : arg;\n\n    // Ensure TConfig is passed to super.call\n    return super.call(structuredArg, callbacks);\n  }\n}\n\n/**\n * A tool that can be created dynamically from a function, name, and description.\n */\nexport class DynamicTool<\n  ToolOutputT = ToolOutputType\n> extends Tool<ToolOutputT> {\n  static lc_name() {\n    return \"DynamicTool\";\n  }\n\n  name: string;\n\n  description: string;\n\n  func: DynamicToolInput<ToolOutputT>[\"func\"];\n\n  constructor(fields: DynamicToolInput<ToolOutputT>) {\n    super(fields);\n    this.name = fields.name;\n    this.description = fields.description;\n    this.func = fields.func;\n    this.returnDirect = fields.returnDirect ?? this.returnDirect;\n  }\n\n  /**\n   * @deprecated Use .invoke() instead. Will be removed in 0.3.0.\n   */\n  async call<\n    TArg extends string | undefined | z.input<this[\"schema\"]> | ToolCall,\n    TConfig extends ToolRunnableConfig | undefined\n  >(\n    arg: TArg,\n    configArg?: TConfig\n  ): Promise<ToolReturnType<NonNullable<TArg>, TConfig, ToolOutputT>> {\n    const config = parseCallbackConfigArg(configArg);\n    if (config.runName === undefined) {\n      config.runName = this.name;\n    }\n    // Call the Tool class's call method, passing generics through\n    // Cast config to TConfig to satisfy the super.call signature\n    return super.call<TArg, TConfig>(arg, config as TConfig);\n  }\n\n  /** @ignore */\n  async _call(\n    input: string, // DynamicTool's _call specifically expects a string after schema transformation\n    runManager?: CallbackManagerForToolRun,\n    parentConfig?: ToolRunnableConfig\n  ): Promise<ToolOutputT> {\n    return this.func(input, runManager, parentConfig);\n  }\n}\n\n/**\n * A tool that can be created dynamically from a function, name, and\n * description, designed to work with structured data. It extends the\n * StructuredTool class and overrides the _call method to execute the\n * provided function when the tool is called.\n *\n * Schema can be passed as Zod or JSON schema. The tool will not validate\n * input if JSON schema is passed.\n */\nexport class DynamicStructuredTool<\n  SchemaT = ToolInputSchemaBase,\n  SchemaOutputT = ToolInputSchemaOutputType<SchemaT>,\n  SchemaInputT = ToolInputSchemaInputType<SchemaT>,\n  ToolOutputT = ToolOutputType\n> extends StructuredTool<SchemaT, SchemaOutputT, SchemaInputT, ToolOutputT> {\n  static lc_name() {\n    return \"DynamicStructuredTool\";\n  }\n\n  name: string;\n\n  description: string;\n\n  func: DynamicStructuredToolInput<SchemaT, SchemaOutputT, ToolOutputT>[\"func\"];\n\n  schema: SchemaT;\n\n  constructor(\n    fields: DynamicStructuredToolInput<SchemaT, SchemaOutputT, ToolOutputT>\n  ) {\n    super(fields);\n    this.name = fields.name;\n    this.description = fields.description;\n    this.func = fields.func;\n    this.returnDirect = fields.returnDirect ?? this.returnDirect;\n    this.schema = fields.schema;\n  }\n\n  /**\n   * @deprecated Use .invoke() instead. Will be removed in 0.3.0.\n   */\n  // Match the base class signature\n  async call<\n    TArg extends StructuredToolCallInput<SchemaT, SchemaInputT>,\n    TConfig extends ToolRunnableConfig | undefined\n  >(\n    arg: TArg,\n    configArg?: TConfig,\n    /** @deprecated */\n    tags?: string[]\n  ): Promise<ToolReturnType<NonNullable<TArg>, TConfig, ToolOutputT>> {\n    const config = parseCallbackConfigArg(configArg);\n    if (config.runName === undefined) {\n      config.runName = this.name;\n    }\n\n    // Call the base class method, passing generics through\n    // Cast config to TConfig to satisfy the super.call signature\n    return super.call<TArg, TConfig>(arg, config as TConfig, tags);\n  }\n\n  protected _call(\n    arg: Parameters<\n      DynamicStructuredToolInput<SchemaT, SchemaOutputT>[\"func\"]\n    >[0],\n    runManager?: CallbackManagerForToolRun,\n    parentConfig?: RunnableConfig\n  ): Promise<ToolOutputT> {\n    return this.func(arg, runManager, parentConfig);\n  }\n}\n\n/**\n * Abstract base class for toolkits in LangChain. Toolkits are collections\n * of tools that agents can use. Subclasses must implement the `tools`\n * property to provide the specific tools for the toolkit.\n */\nexport abstract class BaseToolkit {\n  abstract tools: StructuredToolInterface[];\n\n  getTools(): StructuredToolInterface[] {\n    return this.tools;\n  }\n}\n\n/**\n * Parameters for the tool function.\n * Schema can be provided as Zod or JSON schema.\n * Both schema types will be validated.\n * @template {ToolInputSchemaBase} RunInput The input schema for the tool.\n */\ninterface ToolWrapperParams<RunInput = ToolInputSchemaBase | undefined>\n  extends ToolParams {\n  /**\n   * The name of the tool. If using with an LLM, this\n   * will be passed as the tool name.\n   */\n  name: string;\n  /**\n   * The description of the tool.\n   * @default `${fields.name} tool`\n   */\n  description?: string;\n  /**\n   * The input schema for the tool. If using an LLM, this\n   * will be passed as the tool schema to generate arguments\n   * for.\n   */\n  schema?: RunInput;\n  /**\n   * The tool response format.\n   *\n   * If \"content\" then the output of the tool is interpreted as the contents of a\n   * ToolMessage. If \"content_and_artifact\" then the output is expected to be a\n   * two-tuple corresponding to the (content, artifact) of a ToolMessage.\n   *\n   * @default \"content\"\n   */\n  responseFormat?: ResponseFormat;\n  /**\n   * Whether to return the tool's output directly.\n   *\n   * Setting this to true means that after the tool is called,\n   * an agent should stop looping.\n   */\n  returnDirect?: boolean;\n}\n\n/**\n * Creates a new StructuredTool instance with the provided function, name, description, and schema.\n *\n * Schema can be provided as Zod or JSON schema, and both will be validated.\n *\n * @function\n * @template {ToolInputSchemaBase} SchemaT The input schema for the tool.\n * @template {ToolReturnType} ToolOutputT The output type of the tool.\n *\n * @param {RunnableFunc<z.output<SchemaT>, ToolOutputT>} func - The function to invoke when the tool is called.\n * @param {ToolWrapperParams<SchemaT>} fields - An object containing the following properties:\n * @param {string} fields.name The name of the tool.\n * @param {string | undefined} fields.description The description of the tool. Defaults to either the description on the Zod schema, or `${fields.name} tool`.\n * @param {z.AnyZodObject | z.ZodString | undefined} fields.schema The Zod schema defining the input for the tool. If undefined, it will default to a Zod string schema.\n *\n * @returns {DynamicStructuredTool<SchemaT>} A new StructuredTool instance.\n */\nexport function tool<SchemaT extends ZodStringV3, ToolOutputT = ToolOutputType>(\n  func: RunnableFunc<\n    InferInteropZodOutput<SchemaT>,\n    ToolOutputT,\n    ToolRunnableConfig\n  >,\n  fields: ToolWrapperParams<SchemaT>\n): DynamicTool<ToolOutputT>;\n\nexport function tool<SchemaT extends ZodStringV4, ToolOutputT = ToolOutputType>(\n  func: RunnableFunc<\n    InferInteropZodOutput<SchemaT>,\n    ToolOutputT,\n    ToolRunnableConfig\n  >,\n  fields: ToolWrapperParams<SchemaT>\n): DynamicTool<ToolOutputT>;\n\nexport function tool<\n  SchemaT extends ZodObjectV3,\n  SchemaOutputT = InferInteropZodOutput<SchemaT>,\n  SchemaInputT = InferInteropZodInput<SchemaT>,\n  ToolOutputT = ToolOutputType\n>(\n  func: RunnableFunc<SchemaOutputT, ToolOutputT, ToolRunnableConfig>,\n  fields: ToolWrapperParams<SchemaT>\n): DynamicStructuredTool<SchemaT, SchemaOutputT, SchemaInputT, ToolOutputT>;\n\nexport function tool<\n  SchemaT extends ZodObjectV4,\n  SchemaOutputT = InferInteropZodOutput<SchemaT>,\n  SchemaInputT = InferInteropZodInput<SchemaT>,\n  ToolOutputT = ToolOutputType\n>(\n  func: RunnableFunc<SchemaOutputT, ToolOutputT, ToolRunnableConfig>,\n  fields: ToolWrapperParams<SchemaT>\n): DynamicStructuredTool<SchemaT, SchemaOutputT, SchemaInputT, ToolOutputT>;\n\nexport function tool<\n  SchemaT extends JSONSchema,\n  SchemaOutputT = ToolInputSchemaOutputType<SchemaT>,\n  SchemaInputT = ToolInputSchemaInputType<SchemaT>,\n  ToolOutputT = ToolOutputType\n>(\n  func: RunnableFunc<\n    Parameters<DynamicStructuredToolInput<SchemaT>[\"func\"]>[0],\n    ToolOutputT,\n    ToolRunnableConfig\n  >,\n  fields: ToolWrapperParams<SchemaT>\n): DynamicStructuredTool<SchemaT, SchemaOutputT, SchemaInputT, ToolOutputT>;\n\nexport function tool<\n  SchemaT extends\n    | InteropZodObject\n    | InteropZodType<string>\n    | JSONSchema = InteropZodObject,\n  SchemaOutputT = ToolInputSchemaOutputType<SchemaT>,\n  SchemaInputT = ToolInputSchemaInputType<SchemaT>,\n  ToolOutputT = ToolOutputType\n>(\n  func: RunnableFunc<SchemaOutputT, ToolOutputT, ToolRunnableConfig>,\n  fields: ToolWrapperParams<SchemaT>\n):\n  | DynamicStructuredTool<SchemaT, SchemaOutputT, SchemaInputT, ToolOutputT>\n  | DynamicTool<ToolOutputT>;\n\n// Overloads with ToolRuntime as CallOptions\nexport function tool<\n  SchemaT extends ZodStringV3,\n  ToolOutputT = ToolOutputType,\n  TState = unknown,\n  TContext = unknown\n>(\n  func: (\n    input: InferInteropZodOutput<SchemaT>,\n    runtime: ToolRuntime<TState, TContext>\n  ) => ToolOutputT | Promise<ToolOutputT>,\n  fields: ToolWrapperParams<SchemaT>\n): DynamicTool<ToolOutputT>;\n\nexport function tool<\n  SchemaT extends ZodStringV4,\n  ToolOutputT = ToolOutputType,\n  TState = unknown,\n  TContext = unknown\n>(\n  func: (\n    input: InferInteropZodOutput<SchemaT>,\n    runtime: ToolRuntime<TState, TContext>\n  ) => ToolOutputT | Promise<ToolOutputT>,\n  fields: ToolWrapperParams<SchemaT>\n): DynamicTool<ToolOutputT>;\n\nexport function tool<\n  SchemaT extends ZodObjectV3,\n  SchemaOutputT = InferInteropZodOutput<SchemaT>,\n  SchemaInputT = InferInteropZodInput<SchemaT>,\n  ToolOutputT = ToolOutputType,\n  TState = unknown,\n  TContext = unknown\n>(\n  func: (\n    input: SchemaOutputT,\n    runtime: ToolRuntime<TState, TContext>\n  ) => ToolOutputT | Promise<ToolOutputT>,\n  fields: ToolWrapperParams<SchemaT>\n): DynamicStructuredTool<SchemaT, SchemaOutputT, SchemaInputT, ToolOutputT>;\n\nexport function tool<\n  SchemaT extends ZodObjectV4,\n  SchemaOutputT = InferInteropZodOutput<SchemaT>,\n  SchemaInputT = InferInteropZodInput<SchemaT>,\n  ToolOutputT = ToolOutputType,\n  TState = unknown,\n  TContext = unknown\n>(\n  func: (\n    input: SchemaOutputT,\n    runtime: ToolRuntime<TState, TContext>\n  ) => ToolOutputT | Promise<ToolOutputT>,\n  fields: ToolWrapperParams<SchemaT>\n): DynamicStructuredTool<SchemaT, SchemaOutputT, SchemaInputT, ToolOutputT>;\n\nexport function tool<\n  SchemaT extends JSONSchema,\n  SchemaOutputT = ToolInputSchemaOutputType<SchemaT>,\n  SchemaInputT = ToolInputSchemaInputType<SchemaT>,\n  ToolOutputT = ToolOutputType,\n  TState = unknown,\n  TContext = unknown\n>(\n  func: (\n    input: Parameters<DynamicStructuredToolInput<SchemaT>[\"func\"]>[0],\n    runtime: ToolRuntime<TState, TContext>\n  ) => ToolOutputT | Promise<ToolOutputT>,\n  fields: ToolWrapperParams<SchemaT>\n): DynamicStructuredTool<SchemaT, SchemaOutputT, SchemaInputT, ToolOutputT>;\n\nexport function tool<\n  SchemaT extends\n    | InteropZodObject\n    | InteropZodType<string>\n    | JSONSchema = InteropZodObject,\n  SchemaOutputT = ToolInputSchemaOutputType<SchemaT>,\n  SchemaInputT = ToolInputSchemaInputType<SchemaT>,\n  ToolOutputT = ToolOutputType,\n  TState = unknown,\n  TContext = unknown\n>(\n  func: (\n    input: SchemaOutputT,\n    runtime: ToolRuntime<TState, TContext>\n  ) => ToolOutputT | Promise<ToolOutputT>,\n  fields: ToolWrapperParams<SchemaT>\n):\n  | DynamicStructuredTool<SchemaT, SchemaOutputT, SchemaInputT, ToolOutputT>\n  | DynamicTool<ToolOutputT> {\n  const isSimpleStringSchema = isSimpleStringZodSchema(fields.schema);\n  const isStringJSONSchema = validatesOnlyStrings(fields.schema);\n\n  // If the schema is not provided, or it's a simple string schema, create a DynamicTool\n  if (!fields.schema || isSimpleStringSchema || isStringJSONSchema) {\n    return new DynamicTool<ToolOutputT>({\n      ...fields,\n      description:\n        fields.description ??\n        (fields.schema as { description?: string } | undefined)?.description ??\n        `${fields.name} tool`,\n      func: async (input, runManager, config) => {\n        return new Promise<ToolOutputT>((resolve, reject) => {\n          const childConfig = patchConfig(config, {\n            callbacks: runManager?.getChild(),\n          });\n          // eslint-disable-next-line no-void\n          void AsyncLocalStorageProviderSingleton.runWithConfig(\n            pickRunnableConfigKeys(childConfig),\n            async () => {\n              try {\n                // eslint-disable-next-line @typescript-eslint/no-explicit-any\n                resolve(func(input as any, childConfig as any));\n              } catch (e) {\n                reject(e);\n              }\n            }\n          );\n        });\n      },\n    });\n  }\n\n  const schema = fields.schema as InteropZodObject | JSONSchema;\n\n  const description =\n    fields.description ??\n    (fields.schema as { description?: string }).description ??\n    `${fields.name} tool`;\n\n  return new DynamicStructuredTool<\n    typeof schema,\n    SchemaOutputT,\n    SchemaInputT,\n    ToolOutputT\n  >({\n    ...fields,\n    description,\n    schema,\n    func: async (input, runManager, config) => {\n      return new Promise<ToolOutputT>((resolve, reject) => {\n        let listener: (() => void) | undefined;\n        const cleanup = () => {\n          if (config?.signal && listener) {\n            config.signal.removeEventListener(\"abort\", listener);\n          }\n        };\n\n        if (config?.signal) {\n          listener = () => {\n            cleanup();\n            reject(getAbortSignalError(config.signal));\n          };\n          config.signal.addEventListener(\"abort\", listener);\n        }\n\n        const childConfig = patchConfig(config, {\n          callbacks: runManager?.getChild(),\n        });\n        // eslint-disable-next-line no-void\n        void AsyncLocalStorageProviderSingleton.runWithConfig(\n          pickRunnableConfigKeys(childConfig),\n          async () => {\n            try {\n              // eslint-disable-next-line @typescript-eslint/no-explicit-any\n              const result = await func(input as any, childConfig as any);\n\n              /**\n               * If the signal is aborted, we don't 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