GPT-5 MCP Server

import { describe, it, expect } from "vitest"; import { buildOpenAIRequest, type QueryInput } from "../src/openai.ts"; import type { AppConfig, ReasoningEffort, SearchContextSize, Verbosity } from "../src/config.ts"; function cfg(partial: Partial<AppConfig> = {}): AppConfig { return { apiKey: "sk-test", model: "gpt-5", maxRetries: 3, timeoutMs: 60000, reasoningEffort: "medium", defaultVerbosity: "medium", webSearchDefaultEnabled: false, webSearchContextSize: "medium", ...partial, } as AppConfig; } describe("buildOpenAIRequest", () => { it("builds minimal request with defaults", () => { const input: QueryInput = { query: "Hello" }; const req = buildOpenAIRequest(input, cfg()); expect(req).toMatchObject({ model: "gpt-5", input: "Hello", tool_choice: "auto", parallel_tool_calls: true, }); expect(req.tools).toBeUndefined(); expect(req.reasoning).toEqual({ effort: "medium" }); expect(req.text).toEqual({ verbosity: "medium" }); }); it("maps reasoning_effort low->minimal", () => { const input: QueryInput = { query: "q", reasoning_effort: "low" }; const req = buildOpenAIRequest(input, cfg()); expect(req.reasoning?.effort).toBe<ReasoningEffort>("minimal"); }); it("bumps minimal to medium when web_search enabled", () => { const input: QueryInput = { query: "q", reasoning_effort: "minimal", web_search: { enabled: true } }; const req = buildOpenAIRequest(input, cfg()); expect(req.reasoning?.effort).toBe<ReasoningEffort>("medium"); }); it("adds web_search_preview tool when enabled with context size", () => { const input: QueryInput = { query: "q", web_search: { enabled: true, search_context_size: "high" } }; const req = buildOpenAIRequest(input, cfg()); expect(req.tools).toEqual([ { type: "web_search_preview", search_context_size: "high" satisfies SearchContextSize }, ]); }); it("uses config defaults for web search when per-call omitted", () => { const input: QueryInput = { query: "q" }; const req = buildOpenAIRequest(input, cfg({ webSearchDefaultEnabled: true, webSearchContextSize: "low" })); expect(req.tools).toEqual([ { type: "web_search_preview", search_context_size: "low" }, ]); }); it("overrides model/system/max_output_tokens/tool options", () => { const input: QueryInput = { query: "q", model: "gpt-5.1", system: "You are terse.", max_output_tokens: 1024, tool_choice: "none", parallel_tool_calls: false, verbosity: "high", }; const req = buildOpenAIRequest(input, cfg()); expect(req.model).toBe("gpt-5.1"); expect(req.instructions).toBe("You are terse."); expect(req.max_output_tokens).toBe(1024); expect(req.tool_choice).toBe("none"); expect(req.parallel_tool_calls).toBe(false); expect(req.text).toEqual({ verbosity: "high" as Verbosity }); }); });