langchain/dist/agents/middleware/dynamicSystemPrompt.d.cts.map

Typescript bindings for langchain

{"version":3,"file":"dynamicSystemPrompt.d.cts","names":["__types_js9","SystemMessage","Runtime","AgentBuiltInState","DynamicSystemPromptMiddlewareConfig","TContextSchema","Promise","dynamicSystemPromptMiddleware","_langchain_core_tools3","ServerTool","ClientTool","AgentMiddleware"],"sources":["../../../src/agents/middleware/dynamicSystemPrompt.d.ts"],"sourcesContent":["import { SystemMessage } from \"@langchain/core/messages\";\nimport type { Runtime, AgentBuiltInState } from \"../runtime.js\";\nexport type DynamicSystemPromptMiddlewareConfig<TContextSchema> = (state: AgentBuiltInState, runtime: Runtime<TContextSchema>) => string | SystemMessage | Promise<string | SystemMessage>;\n/**\n * Dynamic System Prompt Middleware\n *\n * Allows setting the system prompt dynamically right before each model invocation.\n * Useful when the prompt depends on the current agent state or per-invocation context.\n *\n * @typeParam TContextSchema - The shape of the runtime context available at invocation time.\n * If your agent defines a `contextSchema`, pass the inferred type here to get full type-safety\n * for `runtime.context`.\n *\n * @param fn - Function that receives the current agent `state` and `runtime`, and\n * returns the system prompt for the next model call as a string.\n *\n * @returns A middleware instance that sets `systemPrompt` for the next model call.\n *\n * @example Basic usage with typed context\n * ```ts\n * import { z } from \"zod\";\n * import { dynamicSystemPrompt } from \"langchain\";\n * import { createAgent, SystemMessage } from \"langchain\";\n *\n * const contextSchema = z.object({ region: z.string().optional() });\n *\n * const middleware = dynamicSystemPrompt<z.infer<typeof contextSchema>>(\n *   (_state, runtime) => `You are a helpful assistant. Region: ${runtime.context.region ?? \"n/a\"}`\n * );\n *\n * const agent = createAgent({\n *   model: \"anthropic:claude-3-5-sonnet\",\n *   contextSchema,\n *   middleware: [middleware],\n * });\n *\n * await agent.invoke({ messages }, { context: { region: \"EU\" } });\n * ```\n *\n * @public\n */\nexport declare function dynamicSystemPromptMiddleware<TContextSchema = unknown>(fn: DynamicSystemPromptMiddlewareConfig<TContextSchema>): import(\"./types.js\").AgentMiddleware<undefined, undefined, unknown, readonly (import(\"@langchain/core/tools\").ServerTool | import(\"@langchain/core/tools\").ClientTool)[]>;\n//# sourceMappingURL=dynamicSystemPrompt.d.ts.map"],"mappings":";;;;;;KAEYI,8DAA8DD,4BAA4BD,QAAQG,6BAA6BJ,gBAAgBK,iBAAiBL;;;;AAA5K;;;;;;;AAAkK;AAuClK;;;;;;AAA8K;;;;;;;;;;;;;;;;;;;;;iBAAtJM,4DAA4DH,oCAAoCC,2EAADG,sBAAAA,CAAiIC,UAAAA,GAAUD,sBAAAA,CAAmCE"}