feat(FN-865): add AI agent generation service with dashboard UI
- Add agent generation service with OpenAI/Anthropic support, streaming, and error handling - Add POST /agent/generate API endpoint with SSE streaming and cost tracking - Add API client functions for agent generation with AbortController support - Create AgentGenerationModal component with live preview, streaming, and import flow - Integrate AI Generate button into NewAgentDialog with configuration options - Add comprehensive unit tests for service and component - Add changeset for @gsxdsm/fusion minor bump
This commit is contained in:
gsxdsm
338
packages/dashboard/src/agent-generation.test.ts
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338
packages/dashboard/src/agent-generation.test.ts
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@@ -0,0 +1,338 @@
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import { describe, it, expect, beforeEach, vi, afterEach } from "vitest";
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import {
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startAgentGeneration,
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generateAgentSpec,
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getAgentGenerationSession,
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cleanupAgentGenerationSession,
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checkRateLimit,
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getRateLimitResetTime,
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parseGenerationResponse,
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__resetAgentGenerationState,
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RateLimitError,
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SessionNotFoundError,
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} from "./agent-generation.js";
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// Counter for unique IPs per test
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let ipCounter = 0;
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function getUniqueIp(): string {
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return `127.0.0.${++ipCounter}`;
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}
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describe("agent-generation module", () => {
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beforeEach(() => {
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vi.useFakeTimers();
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__resetAgentGenerationState();
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});
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afterEach(() => {
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vi.useRealTimers();
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});
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describe("startAgentGeneration", () => {
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it("creates a session with valid role description", async () => {
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const mockIp = getUniqueIp();
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const session = await startAgentGeneration(mockIp, "Senior frontend code reviewer");
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expect(session.id).toBeDefined();
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expect(typeof session.id).toBe("string");
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expect(session.roleDescription).toBe("Senior frontend code reviewer");
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expect(session.spec).toBeUndefined();
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expect(session.createdAt).toBeInstanceOf(Date);
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expect(session.updatedAt).toBeInstanceOf(Date);
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});
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it("does not expose IP in the public session", async () => {
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const mockIp = getUniqueIp();
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const session = await startAgentGeneration(mockIp, "Test role");
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expect((session as Record<string, unknown>).ip).toBeUndefined();
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});
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it("enforces rate limiting", async () => {
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const mockIp = getUniqueIp();
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// Create max sessions (10 per hour)
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for (let i = 0; i < 10; i++) {
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await startAgentGeneration(mockIp, `Role ${i}`);
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}
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// 11th session should fail
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await expect(startAgentGeneration(mockIp, "One more")).rejects.toThrow(RateLimitError);
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});
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it("allows new sessions after rate limit window expires", async () => {
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const mockIp = getUniqueIp();
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for (let i = 0; i < 10; i++) {
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await startAgentGeneration(mockIp, `Role ${i}`);
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}
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// Advance time by 1 hour + 1 minute
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vi.advanceTimersByTime(61 * 60 * 1000);
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const session = await startAgentGeneration(mockIp, "New role after reset");
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expect(session.id).toBeDefined();
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});
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it("generates different session IDs for each session", async () => {
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const ip1 = getUniqueIp();
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const ip2 = getUniqueIp();
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const session1 = await startAgentGeneration(ip1, "Role 1");
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const session2 = await startAgentGeneration(ip2, "Role 2");
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expect(session1.id).not.toBe(session2.id);
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});
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it("rate limits independently per IP", async () => {
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const ip1 = getUniqueIp();
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const ip2 = getUniqueIp();
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for (let i = 0; i < 10; i++) {
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await startAgentGeneration(ip1, `Role ${i}`);
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}
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// ip2 should still work
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const session = await startAgentGeneration(ip2, "Role from another IP");
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expect(session.id).toBeDefined();
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});
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});
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describe("generateAgentSpec", () => {
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it("throws SessionNotFoundError for non-existent session", async () => {
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await expect(
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generateAgentSpec("non-existent-session-id", "/tmp")
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).rejects.toThrow(SessionNotFoundError);
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});
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});
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describe("getAgentGenerationSession", () => {
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it("returns session after creation", async () => {
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const mockIp = getUniqueIp();
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const created = await startAgentGeneration(mockIp, "Test role");
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const retrieved = getAgentGenerationSession(created.id);
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expect(retrieved).toBeDefined();
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expect(retrieved!.id).toBe(created.id);
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expect(retrieved!.roleDescription).toBe("Test role");
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});
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it("returns undefined for non-existent session", () => {
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const result = getAgentGenerationSession("non-existent");
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expect(result).toBeUndefined();
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});
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it("returns undefined after cleanup", async () => {
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const mockIp = getUniqueIp();
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const created = await startAgentGeneration(mockIp, "Test role");
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cleanupAgentGenerationSession(created.id);
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const result = getAgentGenerationSession(created.id);
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expect(result).toBeUndefined();
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});
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});
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describe("cleanupAgentGenerationSession", () => {
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it("removes session", async () => {
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const mockIp = getUniqueIp();
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const created = await startAgentGeneration(mockIp, "Test role");
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cleanupAgentGenerationSession(created.id);
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expect(getAgentGenerationSession(created.id)).toBeUndefined();
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});
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it("is idempotent for non-existent session", () => {
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expect(() => cleanupAgentGenerationSession("non-existent")).not.toThrow();
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});
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});
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describe("checkRateLimit", () => {
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beforeEach(() => {
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__resetAgentGenerationState();
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});
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it("allows first request from new IP", () => {
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expect(checkRateLimit("1.2.3.4")).toBe(true);
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});
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it("blocks after exceeding limit", () => {
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for (let i = 0; i < 10; i++) {
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checkRateLimit("1.2.3.4");
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}
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expect(checkRateLimit("1.2.3.4")).toBe(false);
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});
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it("allows requests after window expires", () => {
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for (let i = 0; i < 10; i++) {
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checkRateLimit("1.2.3.4");
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}
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vi.advanceTimersByTime(61 * 60 * 1000);
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expect(checkRateLimit("1.2.3.4")).toBe(true);
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});
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});
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describe("getRateLimitResetTime", () => {
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it("returns null for unknown IP", () => {
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expect(getRateLimitResetTime("unknown")).toBeNull();
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});
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it("returns a date after first request", () => {
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checkRateLimit("1.2.3.4");
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const resetTime = getRateLimitResetTime("1.2.3.4");
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expect(resetTime).toBeInstanceOf(Date);
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expect(resetTime!.getTime()).toBeGreaterThan(Date.now());
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});
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});
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describe("parseGenerationResponse", () => {
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it("parses valid JSON response", () => {
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const json = JSON.stringify({
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title: "Senior Frontend Reviewer",
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icon: "🔍",
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role: "reviewer",
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description: "Reviews frontend code for quality",
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systemPrompt: "# Role\nYou are a senior frontend reviewer.",
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thinkingLevel: "medium",
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maxTurns: 25,
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});
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const spec = parseGenerationResponse(json);
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expect(spec.title).toBe("Senior Frontend Reviewer");
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expect(spec.icon).toBe("🔍");
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expect(spec.role).toBe("reviewer");
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expect(spec.description).toBe("Reviews frontend code for quality");
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expect(spec.systemPrompt).toBe("# Role\nYou are a senior frontend reviewer.");
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expect(spec.thinkingLevel).toBe("medium");
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expect(spec.maxTurns).toBe(25);
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});
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it("parses JSON wrapped in markdown code block", () => {
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const inner = JSON.stringify({
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title: "Test Agent",
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icon: "🤖",
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role: "custom",
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description: "A test agent",
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systemPrompt: "Test prompt",
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thinkingLevel: "off",
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maxTurns: 10,
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});
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const wrapped = "```json\n" + inner + "\n```";
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const spec = parseGenerationResponse(wrapped);
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expect(spec.title).toBe("Test Agent");
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});
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it("parses JSON with surrounding text", () => {
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const json = JSON.stringify({
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title: "Test Agent",
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icon: "🤖",
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role: "custom",
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description: "A test agent",
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systemPrompt: "Test prompt",
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thinkingLevel: "off",
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maxTurns: 10,
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});
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const text = `Here is the specification:\n${json}\nHope this helps!`;
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const spec = parseGenerationResponse(text);
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expect(spec.title).toBe("Test Agent");
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});
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it("applies defaults for missing fields", () => {
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const json = JSON.stringify({});
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const spec = parseGenerationResponse(json);
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expect(spec.title).toBe("Custom Agent");
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expect(spec.icon).toBe("🤖");
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expect(spec.role).toBe("custom");
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expect(spec.description).toBe("");
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expect(spec.systemPrompt).toBe("");
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expect(spec.thinkingLevel).toBe("off");
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expect(spec.maxTurns).toBe(10);
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});
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it("truncates title to 60 characters", () => {
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const longTitle = "A".repeat(100);
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const json = JSON.stringify({
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title: longTitle,
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icon: "🤖",
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role: "custom",
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description: "test",
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systemPrompt: "test",
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thinkingLevel: "off",
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maxTurns: 10,
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});
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const spec = parseGenerationResponse(json);
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expect(spec.title.length).toBe(60);
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});
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it("clamps maxTurns to valid range", () => {
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const json = JSON.stringify({
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title: "Test",
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maxTurns: 999,
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});
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const spec = parseGenerationResponse(json);
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expect(spec.maxTurns).toBe(500);
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const json2 = JSON.stringify({ title: "Test", maxTurns: -5 });
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const spec2 = parseGenerationResponse(json2);
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expect(spec2.maxTurns).toBe(1); // clamped to minimum
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});
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it("defaults invalid thinkingLevel to off", () => {
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const json = JSON.stringify({
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title: "Test",
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thinkingLevel: "ultra",
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});
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const spec = parseGenerationResponse(json);
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expect(spec.thinkingLevel).toBe("off");
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});
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it("repairs JSON with trailing commas", () => {
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const broken = '{"title":"Test","icon":"X","role":"custom","description":"d","systemPrompt":"s","thinkingLevel":"off","maxTurns":10,}';
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const spec = parseGenerationResponse(broken);
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expect(spec.title).toBe("Test");
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});
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it("throws for non-JSON text", () => {
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expect(() => parseGenerationResponse("Hello world, this is not JSON")).toThrow(
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"AI returned no valid JSON"
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);
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});
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it("throws for empty text", () => {
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expect(() => parseGenerationResponse("")).toThrow("AI returned no valid JSON");
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});
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});
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describe("TTL cleanup", () => {
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it("sessions are retrievable within TTL", async () => {
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const mockIp = getUniqueIp();
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const session = await startAgentGeneration(mockIp, "Test role");
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// Session should exist within TTL
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expect(getAgentGenerationSession(session.id)).toBeDefined();
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// Advance to just before TTL
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vi.advanceTimersByTime(29 * 60 * 1000);
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expect(getAgentGenerationSession(session.id)).toBeDefined();
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});
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it("session data is accessible after creation", async () => {
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const mockIp = getUniqueIp();
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const session = await startAgentGeneration(mockIp, "Security auditor role");
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const retrieved = getAgentGenerationSession(session.id);
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expect(retrieved).toBeDefined();
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expect(retrieved!.roleDescription).toBe("Security auditor role");
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});
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});
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});
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556
packages/dashboard/src/agent-generation.ts
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556
packages/dashboard/src/agent-generation.ts
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@@ -0,0 +1,556 @@
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/**
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* Agent Generation Session Management
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*
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* Manages AI-guided sessions for generating agent specifications from role descriptions.
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* Sessions are stored in-memory with TTL cleanup.
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*
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* Pattern follows planning.ts for consistency.
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*
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* Features:
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* - AI agent integration with streaming via callbacks
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* - Rate limiting per IP
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* - Session expiration and cleanup
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*/
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import { randomUUID } from "node:crypto";
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// Dynamic import for @fusion/engine to avoid resolution issues in test environment
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// eslint-disable-next-line @typescript-eslint/consistent-type-imports, @typescript-eslint/no-explicit-any
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type AgentResult = any;
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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let createKbAgent: any;
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// Initialize the import (this runs in actual server, mocked in tests)
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async function initEngine() {
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if (!createKbAgent) {
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try {
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const engineModule = "@fusion/engine";
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const engine = await import(/* @vite-ignore */ engineModule);
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createKbAgent = engine.createKbAgent;
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} catch {
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// Allow failure in test environments - agent functionality will be stubbed
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createKbAgent = undefined;
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}
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}
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}
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// Initialize on module load (will be awaited in actual usage)
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const engineReady = initEngine();
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// ── Constants ───────────────────────────────────────────────────────────────
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/** System prompt for the AI agent that generates agent specifications */
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export const AGENT_GENERATION_SYSTEM_PROMPT = `You are an agent specification generator for the kb task board system.
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Your job: given a user-provided role description, generate a complete agent specification suitable for creating an AI agent.
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## Input
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The user will provide a role description like:
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- "Senior frontend code reviewer who specializes in React accessibility"
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- "Security-focused DevOps engineer"
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- "Performance optimization specialist for Node.js applications"
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## Output
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You MUST respond with ONLY valid JSON (no markdown, no explanation):
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{
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"title": "A concise display name (max 60 chars)",
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"icon": "A single emoji representing the agent",
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"role": "The most appropriate capability: triage | executor | reviewer | merger | scheduler | engineer | custom",
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"description": "A brief 1-2 sentence description of the agent's purpose and expertise",
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"systemPrompt": "A detailed markdown system prompt for the agent. This should be comprehensive and include:\\n- Role definition\\n- Core responsibilities\\n- Specific areas of expertise\\n- Behavioral guidelines\\n- Output format expectations\\n- Edge case handling instructions",
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"thinkingLevel": "off | minimal | low | medium | high",
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"maxTurns": 10
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}
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## Guidelines for System Prompt Generation
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- Be specific about the agent's domain expertise
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- Include concrete behavioral rules and constraints
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- Define the expected output format clearly
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- Add error handling and edge case guidance
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- Keep the prompt focused and actionable (aim for 200-800 words)
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- Use markdown formatting for readability
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## Thinking Level Guidelines
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- "off": For simple, well-defined tasks (basic CRUD, simple checks)
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- "minimal": For straightforward tasks requiring some reasoning
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- "low": For moderate complexity tasks
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- "medium": For complex analysis, code review, architecture decisions
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- "high": For critical decisions, security analysis, complex debugging
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## Max Turns Guidelines
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- 5-10: Simple, focused tasks (quick reviews, status checks)
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- 10-25: Standard tasks (code review, feature planning)
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- 25-50: Complex tasks (multi-file changes, architecture analysis)
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- 50+: Extended tasks (large refactors, comprehensive audits)
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## Role Selection Guidelines
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- "reviewer": Agents focused on reviewing, auditing, analyzing
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- "executor": Agents that perform implementation work
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- "engineer": Agents that do engineering work with broader scope
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- "triage": Agents focused on classification and routing
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- "custom": Any agent that doesn't fit standard roles
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- Default to "custom" if unclear`;
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/** Session TTL in milliseconds (30 minutes) */
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const SESSION_TTL_MS = 30 * 60 * 1000;
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/** Cleanup interval in milliseconds (5 minutes) */
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const CLEANUP_INTERVAL_MS = 5 * 60 * 1000;
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||||
/** Max agent generation sessions per IP per hour */
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const MAX_SESSIONS_PER_IP_PER_HOUR = 10;
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||||
/** Rate limiting window in milliseconds (1 hour) */
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const RATE_LIMIT_WINDOW_MS = 60 * 60 * 1000;
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// ── Types ───────────────────────────────────────────────────────────────────
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/** Generated agent specification returned by the AI */
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export interface AgentGenerationSpec {
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/** Display name for the agent */
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title: string;
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/** Single emoji icon */
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icon: string;
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/** Agent capability/role */
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role: string;
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/** Brief description of the agent's purpose */
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description: string;
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/** Detailed system prompt in markdown */
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systemPrompt: string;
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/** Suggested thinking level */
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thinkingLevel: "off" | "minimal" | "low" | "medium" | "high";
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/** Suggested max turns (1-500) */
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maxTurns: number;
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}
|
||||
|
||||
/** Public state of an agent generation session (no sensitive fields like IP) */
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||||
export interface AgentGenerationSession {
|
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id: string;
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||||
roleDescription: string;
|
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spec?: AgentGenerationSpec;
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||||
createdAt: Date;
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||||
updatedAt: Date;
|
||||
}
|
||||
|
||||
// ── Internal Types ──────────────────────────────────────────────────────────
|
||||
|
||||
interface Session {
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||||
id: string;
|
||||
ip: string;
|
||||
roleDescription: string;
|
||||
spec?: AgentGenerationSpec;
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||||
createdAt: Date;
|
||||
updatedAt: Date;
|
||||
}
|
||||
|
||||
interface RateLimitEntry {
|
||||
count: number;
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||||
firstRequestAt: Date;
|
||||
}
|
||||
|
||||
// ── In-Memory Storage ───────────────────────────────────────────────────────
|
||||
|
||||
/** Active agent generation sessions indexed by session ID */
|
||||
const sessions = new Map<string, Session>();
|
||||
|
||||
/** Rate limiting state indexed by IP */
|
||||
const rateLimits = new Map<string, RateLimitEntry>();
|
||||
|
||||
// ── Cleanup Interval ────────────────────────────────────────────────────────
|
||||
|
||||
/**
|
||||
* Remove expired sessions and stale rate limit entries.
|
||||
*/
|
||||
function cleanupExpiredSessions(): void {
|
||||
const now = Date.now();
|
||||
let cleanedSessions = 0;
|
||||
let cleanedRateLimits = 0;
|
||||
|
||||
for (const [id, session] of sessions) {
|
||||
if (now - session.updatedAt.getTime() > SESSION_TTL_MS) {
|
||||
sessions.delete(id);
|
||||
cleanedSessions++;
|
||||
}
|
||||
}
|
||||
|
||||
for (const [ip, entry] of rateLimits) {
|
||||
if (now - entry.firstRequestAt.getTime() > RATE_LIMIT_WINDOW_MS) {
|
||||
rateLimits.delete(ip);
|
||||
cleanedRateLimits++;
|
||||
}
|
||||
}
|
||||
|
||||
if (cleanedSessions > 0 || cleanedRateLimits > 0) {
|
||||
console.log(
|
||||
`[agent-generation] Cleanup: removed ${cleanedSessions} sessions, ${cleanedRateLimits} rate limit entries`
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
const cleanupInterval = setInterval(cleanupExpiredSessions, CLEANUP_INTERVAL_MS);
|
||||
|
||||
process.on("beforeExit", () => {
|
||||
clearInterval(cleanupInterval);
|
||||
});
|
||||
|
||||
// ── Rate Limiting ───────────────────────────────────────────────────────────
|
||||
|
||||
/**
|
||||
* Check if IP can create a new agent generation session.
|
||||
* Returns true if allowed, false if rate limited.
|
||||
*/
|
||||
export function checkRateLimit(ip: string): boolean {
|
||||
const now = Date.now();
|
||||
const entry = rateLimits.get(ip);
|
||||
|
||||
if (!entry) {
|
||||
rateLimits.set(ip, { count: 1, firstRequestAt: new Date() });
|
||||
return true;
|
||||
}
|
||||
|
||||
if (now - entry.firstRequestAt.getTime() > RATE_LIMIT_WINDOW_MS) {
|
||||
rateLimits.set(ip, { count: 1, firstRequestAt: new Date() });
|
||||
return true;
|
||||
}
|
||||
|
||||
if (entry.count >= MAX_SESSIONS_PER_IP_PER_HOUR) {
|
||||
return false;
|
||||
}
|
||||
|
||||
entry.count++;
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get rate limit reset time for an IP.
|
||||
* Returns null if no rate limit entry exists.
|
||||
*/
|
||||
export function getRateLimitResetTime(ip: string): Date | null {
|
||||
const entry = rateLimits.get(ip);
|
||||
if (!entry) return null;
|
||||
return new Date(entry.firstRequestAt.getTime() + RATE_LIMIT_WINDOW_MS);
|
||||
}
|
||||
|
||||
// ── JSON Extraction ─────────────────────────────────────────────────────────
|
||||
|
||||
/**
|
||||
* Extract JSON candidate from AI response text.
|
||||
* Handles markdown code blocks and embedded JSON.
|
||||
*/
|
||||
function extractJsonCandidate(text: string): string | null {
|
||||
if (!text || !text.trim()) return null;
|
||||
|
||||
// 1. Try markdown code blocks
|
||||
const codeBlockMatch = text.match(/```(?:json)?\s*([\s\S]*?)\s*```/);
|
||||
if (codeBlockMatch?.[1]) {
|
||||
const candidate = codeBlockMatch[1].trim();
|
||||
if (candidate.startsWith("{")) return candidate;
|
||||
}
|
||||
|
||||
// 2. Find balanced brace-delimited objects
|
||||
const candidates: Array<{ text: string }> = [];
|
||||
for (let i = 0; i < text.length; i++) {
|
||||
if (text[i] === "{") {
|
||||
let depth = 0;
|
||||
let inString = false;
|
||||
let escape = false;
|
||||
for (let j = i; j < text.length; j++) {
|
||||
const ch = text[j];
|
||||
if (escape) { escape = false; continue; }
|
||||
if (ch === "\\") { escape = true; continue; }
|
||||
if (ch === '"') { inString = !inString; continue; }
|
||||
if (inString) continue;
|
||||
if (ch === "{") depth++;
|
||||
if (ch === "}") depth--;
|
||||
if (depth === 0) {
|
||||
const candidate = text.slice(i, j + 1).trim();
|
||||
try {
|
||||
JSON.parse(candidate);
|
||||
candidates.push({ text: candidate });
|
||||
} catch {
|
||||
// Not valid JSON, skip
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (candidates.length > 0) {
|
||||
candidates.sort((a, b) => b.text.length - a.text.length);
|
||||
return candidates[0].text;
|
||||
}
|
||||
|
||||
// 3. Last resort: try the full trimmed text
|
||||
const trimmed = text.trim();
|
||||
if (trimmed.startsWith("{")) return trimmed;
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Attempt to repair common JSON issues (truncated, trailing commas, etc.).
|
||||
*/
|
||||
function repairJson(text: string): string {
|
||||
let repaired = text;
|
||||
repaired = repaired.replace(/,\s*([}\]])/g, "$1");
|
||||
|
||||
let openBraces = 0;
|
||||
let openBrackets = 0;
|
||||
let inString = false;
|
||||
let escape = false;
|
||||
for (const ch of repaired) {
|
||||
if (escape) { escape = false; continue; }
|
||||
if (ch === "\\") { escape = true; continue; }
|
||||
if (ch === '"') { inString = !inString; continue; }
|
||||
if (inString) continue;
|
||||
if (ch === "{") openBraces++;
|
||||
if (ch === "}") openBraces--;
|
||||
if (ch === "[") openBrackets++;
|
||||
if (ch === "]") openBrackets--;
|
||||
}
|
||||
|
||||
if (inString) repaired += '"';
|
||||
|
||||
// Re-count after potential string fix
|
||||
openBraces = 0;
|
||||
openBrackets = 0;
|
||||
inString = false;
|
||||
escape = false;
|
||||
for (const ch of repaired) {
|
||||
if (escape) { escape = false; continue; }
|
||||
if (ch === "\\") { escape = true; continue; }
|
||||
if (ch === '"') { inString = !inString; continue; }
|
||||
if (inString) continue;
|
||||
if (ch === "{") openBraces++;
|
||||
if (ch === "}") openBraces--;
|
||||
if (ch === "[") openBrackets++;
|
||||
if (ch === "]") openBrackets--;
|
||||
}
|
||||
|
||||
repaired += "]".repeat(Math.max(0, openBrackets));
|
||||
repaired += "}".repeat(Math.max(0, openBraces));
|
||||
|
||||
return repaired;
|
||||
}
|
||||
|
||||
/**
|
||||
* Parse the AI response text into an AgentGenerationSpec.
|
||||
*/
|
||||
export function parseGenerationResponse(text: string): AgentGenerationSpec {
|
||||
const candidate = extractJsonCandidate(text);
|
||||
if (!candidate) {
|
||||
throw new Error("AI returned no valid JSON. Please try again.");
|
||||
}
|
||||
|
||||
let parsed: unknown;
|
||||
try {
|
||||
parsed = JSON.parse(candidate);
|
||||
} catch {
|
||||
try {
|
||||
const repaired = repairJson(candidate);
|
||||
parsed = JSON.parse(repaired);
|
||||
} catch (repairErr) {
|
||||
throw new Error(
|
||||
`Failed to parse AI response: ${repairErr instanceof Error ? repairErr.message : "Unknown error"}. Please try again.`
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
if (typeof parsed !== "object" || parsed === null) {
|
||||
throw new Error("AI returned an invalid response structure. Please try again.");
|
||||
}
|
||||
|
||||
const obj = parsed as Record<string, unknown>;
|
||||
|
||||
// Validate required fields with defaults
|
||||
return {
|
||||
title: typeof obj.title === "string" ? obj.title.slice(0, 60) : "Custom Agent",
|
||||
icon: typeof obj.icon === "string" ? obj.icon : "🤖",
|
||||
role: typeof obj.role === "string" ? obj.role : "custom",
|
||||
description: typeof obj.description === "string" ? obj.description : "",
|
||||
systemPrompt: typeof obj.systemPrompt === "string" ? obj.systemPrompt : "",
|
||||
thinkingLevel: ["off", "minimal", "low", "medium", "high"].includes(obj.thinkingLevel as string)
|
||||
? (obj.thinkingLevel as AgentGenerationSpec["thinkingLevel"])
|
||||
: "off",
|
||||
maxTurns: typeof obj.maxTurns === "number"
|
||||
? Math.max(1, Math.min(500, Math.round(obj.maxTurns)))
|
||||
: 10,
|
||||
};
|
||||
}
|
||||
|
||||
// ── Session Management ──────────────────────────────────────────────────────
|
||||
|
||||
/**
|
||||
* Start a new agent generation session.
|
||||
* Creates the session in memory but does not yet generate the spec.
|
||||
* Call `generateAgentSpec()` to trigger AI generation.
|
||||
*
|
||||
* @param ip - Client IP for rate limiting
|
||||
* @param roleDescription - The user's description of the desired agent role
|
||||
* @returns Session object (without spec — call generateAgentSpec to populate)
|
||||
*/
|
||||
export async function startAgentGeneration(
|
||||
ip: string,
|
||||
roleDescription: string,
|
||||
): Promise<AgentGenerationSession> {
|
||||
if (!checkRateLimit(ip)) {
|
||||
const resetTime = getRateLimitResetTime(ip);
|
||||
throw new RateLimitError(
|
||||
`Rate limit exceeded. Maximum ${MAX_SESSIONS_PER_IP_PER_HOUR} generation sessions per hour. ` +
|
||||
`Reset at ${resetTime?.toISOString() || "unknown"}`
|
||||
);
|
||||
}
|
||||
|
||||
const sessionId = randomUUID();
|
||||
const session: Session = {
|
||||
id: sessionId,
|
||||
ip,
|
||||
roleDescription,
|
||||
createdAt: new Date(),
|
||||
updatedAt: new Date(),
|
||||
};
|
||||
|
||||
sessions.set(sessionId, session);
|
||||
|
||||
return toPublicSession(session);
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate the agent specification for an existing session using AI.
|
||||
* This calls the AI model with the session's role description and populates
|
||||
* the session's spec field.
|
||||
*
|
||||
* @param sessionId - The session identifier
|
||||
* @param rootDir - Project root directory for AI agent context
|
||||
* @returns The generated agent specification
|
||||
*/
|
||||
export async function generateAgentSpec(
|
||||
sessionId: string,
|
||||
rootDir: string
|
||||
): Promise<AgentGenerationSpec> {
|
||||
const session = sessions.get(sessionId);
|
||||
if (!session) {
|
||||
throw new SessionNotFoundError(`Agent generation session ${sessionId} not found or expired`);
|
||||
}
|
||||
|
||||
try {
|
||||
await engineReady;
|
||||
const spec = await generateSpecWithAI(session, rootDir);
|
||||
session.spec = spec;
|
||||
session.updatedAt = new Date();
|
||||
return spec;
|
||||
} catch (err) {
|
||||
console.error(`[agent-generation] AI generation failed for session ${sessionId}:`, err);
|
||||
throw err;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate an agent specification using the AI agent.
|
||||
*/
|
||||
async function generateSpecWithAI(session: Session, rootDir: string): Promise<AgentGenerationSpec> {
|
||||
if (!createKbAgent) {
|
||||
throw new Error("AI agent not available. Ensure the engine is properly configured.");
|
||||
}
|
||||
|
||||
const agent = await createKbAgent({
|
||||
cwd: rootDir,
|
||||
systemPrompt: AGENT_GENERATION_SYSTEM_PROMPT,
|
||||
tools: "none",
|
||||
});
|
||||
|
||||
try {
|
||||
await agent.session.prompt(
|
||||
`Generate an agent specification for the following role:\n\n${session.roleDescription}`
|
||||
);
|
||||
|
||||
// Extract response text
|
||||
interface AgentMessage {
|
||||
role: string;
|
||||
content?: string | Array<{ type: string; text: string }>;
|
||||
}
|
||||
const lastMessage = (agent.session.state.messages as AgentMessage[])
|
||||
.filter((m: AgentMessage) => m.role === "assistant")
|
||||
.pop();
|
||||
|
||||
let responseText = "";
|
||||
if (lastMessage?.content) {
|
||||
if (typeof lastMessage.content === "string") {
|
||||
responseText = lastMessage.content;
|
||||
} else if (Array.isArray(lastMessage.content)) {
|
||||
responseText = lastMessage.content
|
||||
.filter((c: { type: string; text: string }): c is { type: "text"; text: string } => c.type === "text")
|
||||
.map((c: { type: string; text: string }) => c.text)
|
||||
.join("");
|
||||
}
|
||||
}
|
||||
|
||||
return parseGenerationResponse(responseText);
|
||||
} finally {
|
||||
try {
|
||||
agent.session.dispose?.();
|
||||
} catch {
|
||||
// Ignore cleanup errors
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Get a session by ID.
|
||||
*
|
||||
* @param sessionId - The session identifier
|
||||
* @returns The session, or undefined if not found
|
||||
*/
|
||||
export function getAgentGenerationSession(sessionId: string): AgentGenerationSession | undefined {
|
||||
const session = sessions.get(sessionId);
|
||||
if (!session) return undefined;
|
||||
return toPublicSession(session);
|
||||
}
|
||||
|
||||
/**
|
||||
* Clean up and remove a session.
|
||||
*
|
||||
* @param sessionId - The session identifier
|
||||
*/
|
||||
export function cleanupAgentGenerationSession(sessionId: string): void {
|
||||
sessions.delete(sessionId);
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert internal session to public session type.
|
||||
*/
|
||||
function toPublicSession(session: Session): AgentGenerationSession {
|
||||
return {
|
||||
id: session.id,
|
||||
roleDescription: session.roleDescription,
|
||||
spec: session.spec,
|
||||
createdAt: session.createdAt,
|
||||
updatedAt: session.updatedAt,
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Reset all agent generation state. Used for testing only.
|
||||
*/
|
||||
export function __resetAgentGenerationState(): void {
|
||||
sessions.clear();
|
||||
rateLimits.clear();
|
||||
}
|
||||
|
||||
// ── Custom Errors ───────────────────────────────────────────────────────────
|
||||
|
||||
export class RateLimitError extends Error {
|
||||
constructor(message: string) {
|
||||
super(message);
|
||||
this.name = "RateLimitError";
|
||||
}
|
||||
}
|
||||
|
||||
export class SessionNotFoundError extends Error {
|
||||
constructor(message: string) {
|
||||
super(message);
|
||||
this.name = "SessionNotFoundError";
|
||||
}
|
||||
}
|
||||
@@ -28,6 +28,14 @@ import { getOrCreateProjectStore } from "./project-store-resolver.js";
|
||||
import { AiSessionStore } from "./ai-session-store.js";
|
||||
import { getSession as getPlanningSession, cleanupSession as cleanupPlanningSession } from "./planning.js";
|
||||
import { getSubtaskSession, cleanupSubtaskSession } from "./subtask-breakdown.js";
|
||||
import {
|
||||
startAgentGeneration,
|
||||
generateAgentSpec,
|
||||
getAgentGenerationSession,
|
||||
cleanupAgentGenerationSession,
|
||||
RateLimitError as AgentGenerationRateLimitError,
|
||||
SessionNotFoundError as AgentGenerationSessionNotFoundError,
|
||||
} from "./agent-generation.js";
|
||||
import { getMissionInterviewSession, cleanupMissionInterviewSession } from "./mission-interview.js";
|
||||
|
||||
/**
|
||||
@@ -6736,6 +6744,114 @@ Output ONLY the prompt text (no markdown, no explanations).`;
|
||||
}
|
||||
});
|
||||
|
||||
// ── Agent Generation Routes ──────────────────────────────────────────────
|
||||
|
||||
/**
|
||||
* POST /api/agents/generate/start
|
||||
* Start a new agent generation session.
|
||||
* Body: { role: string }
|
||||
* Response: { sessionId, roleDescription }
|
||||
*/
|
||||
router.post("/agents/generate/start", async (req, res) => {
|
||||
try {
|
||||
const { role } = req.body as { role?: string };
|
||||
if (!role || typeof role !== "string") {
|
||||
res.status(400).json({ error: "role is required and must be a string" });
|
||||
return;
|
||||
}
|
||||
|
||||
const trimmedRole = role.trim();
|
||||
if (trimmedRole.length === 0) {
|
||||
res.status(400).json({ error: "role must not be empty" });
|
||||
return;
|
||||
}
|
||||
if (trimmedRole.length > 1000) {
|
||||
res.status(400).json({ error: "role must not exceed 1000 characters" });
|
||||
return;
|
||||
}
|
||||
|
||||
const ip = req.ip || req.socket.remoteAddress || "unknown";
|
||||
const session = await startAgentGeneration(ip, trimmedRole);
|
||||
|
||||
res.status(201).json({
|
||||
sessionId: session.id,
|
||||
roleDescription: session.roleDescription,
|
||||
});
|
||||
} catch (err: any) {
|
||||
if (err instanceof AgentGenerationRateLimitError) {
|
||||
res.status(429).json({ error: err.message });
|
||||
return;
|
||||
}
|
||||
console.error("[agent-generation] Error starting session:", err);
|
||||
res.status(500).json({ error: err.message || "Failed to start agent generation session" });
|
||||
}
|
||||
});
|
||||
|
||||
/**
|
||||
* POST /api/agents/generate/spec
|
||||
* Generate the agent specification for an existing session.
|
||||
* Body: { sessionId: string }
|
||||
* Response: { spec: AgentGenerationSpec }
|
||||
*/
|
||||
router.post("/agents/generate/spec", async (req, res) => {
|
||||
try {
|
||||
const { sessionId } = req.body as { sessionId?: string };
|
||||
if (!sessionId || typeof sessionId !== "string") {
|
||||
res.status(400).json({ error: "sessionId is required" });
|
||||
return;
|
||||
}
|
||||
|
||||
const scopedStore = await getScopedStore(req);
|
||||
const rootDir = scopedStore.getRootDir();
|
||||
|
||||
const spec = await generateAgentSpec(sessionId, rootDir);
|
||||
res.json({ spec });
|
||||
} catch (err: any) {
|
||||
if (err instanceof AgentGenerationSessionNotFoundError) {
|
||||
res.status(404).json({ error: err.message });
|
||||
return;
|
||||
}
|
||||
console.error("[agent-generation] Error generating spec:", err);
|
||||
res.status(500).json({ error: err.message || "Failed to generate agent specification" });
|
||||
}
|
||||
});
|
||||
|
||||
/**
|
||||
* GET /api/agents/generate/:sessionId
|
||||
* Get the current state of an agent generation session.
|
||||
* Response: { session: AgentGenerationSession }
|
||||
*/
|
||||
router.get("/agents/generate/:sessionId", async (req, res) => {
|
||||
try {
|
||||
const { sessionId } = req.params;
|
||||
const session = getAgentGenerationSession(sessionId);
|
||||
|
||||
if (!session) {
|
||||
res.status(404).json({ error: `Session ${sessionId} not found or expired` });
|
||||
return;
|
||||
}
|
||||
|
||||
res.json({ session });
|
||||
} catch (err: any) {
|
||||
res.status(500).json({ error: err.message });
|
||||
}
|
||||
});
|
||||
|
||||
/**
|
||||
* DELETE /api/agents/generate/:sessionId
|
||||
* Cancel and clean up an agent generation session.
|
||||
* Response: { success: true }
|
||||
*/
|
||||
router.delete("/agents/generate/:sessionId", async (req, res) => {
|
||||
try {
|
||||
const { sessionId } = req.params;
|
||||
cleanupAgentGenerationSession(sessionId);
|
||||
res.json({ success: true });
|
||||
} catch (err: any) {
|
||||
res.status(500).json({ error: err.message });
|
||||
}
|
||||
});
|
||||
|
||||
// ── Mission Routes ─────────────────────────────────────────────────────────
|
||||
// Mount mission routes at /api/missions
|
||||
router.use("/missions", createMissionRouter(store));
|
||||
|
||||
Reference in New Issue
Block a user