feat(hub): 结构化运行历史(A-3) + lock 心跳(A-5)

A-3 结构化历史:
- 新增 AgentMessage 表(每条消息的 queryable 投影,transcript 文件仍是 agent 读回记忆)
- 新增 AgentFileChange 表(run 期间文件变更 before/after hash + operation)
- runner.ts: generateText 后 persistAgentMessages 落库 result.responseMessages
- workspace.ts writeFileTool: 写前算 beforeHash(SHA-256),写后算 afterHash,通过 ctx.onFileChange sink 记录
- runner.ts flushFileChanges: 收集 sink 的变更批量写入 AgentFileChange
- ToolContext 加 onFileChange sink 字段
- trigger.ts 接线 runId/sessionId/prisma 到 RunRequest

A-5 lock 心跳:
- ProjectAgentLock 加 heartbeatAt 列
- runner.ts onStepFinish 回调:每步 model step 后更新 heartbeatAt(吞错,lock 可能被 force-release)

60 tests 全过(tsc 干净)。
This commit is contained in:
2026-07-07 22:20:30 +08:00
parent f8c3e16a52
commit e7924f78d5
8 changed files with 280 additions and 7 deletions
@@ -0,0 +1,45 @@
-- AgentMessage: per-message record of the agent loop (queryable projection
-- alongside the transcript JSONL file, which remains the agent's read-back memory).
CREATE TABLE "AgentMessage" (
"id" TEXT NOT NULL,
"sessionId" TEXT NOT NULL,
"runId" TEXT,
"role" TEXT NOT NULL,
"content" TEXT NOT NULL,
"attachments" JSONB NOT NULL,
"createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
CONSTRAINT "AgentMessage_pkey" PRIMARY KEY ("id")
);
CREATE INDEX "AgentMessage_sessionId_createdAt_idx" ON "AgentMessage"("sessionId", "createdAt");
CREATE INDEX "AgentMessage_runId_idx" ON "AgentMessage"("runId");
ALTER TABLE "AgentMessage" ADD CONSTRAINT "AgentMessage_sessionId_fkey" FOREIGN KEY ("sessionId") REFERENCES "AgentSession"("id") ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE "AgentMessage" ADD CONSTRAINT "AgentMessage_runId_fkey" FOREIGN KEY ("runId") REFERENCES "AgentRun"("id") ON DELETE SET NULL ON UPDATE CASCADE;
-- AgentFileChange: file change captured during a run (write/rename/delete).
CREATE TABLE "AgentFileChange" (
"id" TEXT NOT NULL,
"runId" TEXT NOT NULL,
"projectId" TEXT NOT NULL,
"path" TEXT NOT NULL,
"operation" TEXT NOT NULL,
"beforeHash" TEXT,
"afterHash" TEXT,
"diff" TEXT,
"metadata" JSONB NOT NULL,
"createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
CONSTRAINT "AgentFileChange_pkey" PRIMARY KEY ("id")
);
CREATE INDEX "AgentFileChange_runId_idx" ON "AgentFileChange"("runId");
CREATE INDEX "AgentFileChange_projectId_idx" ON "AgentFileChange"("projectId");
CREATE INDEX "AgentFileChange_path_idx" ON "AgentFileChange"("path");
ALTER TABLE "AgentFileChange" ADD CONSTRAINT "AgentFileChange_runId_fkey" FOREIGN KEY ("runId") REFERENCES "AgentRun"("id") ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE "AgentFileChange" ADD CONSTRAINT "AgentFileChange_projectId_fkey" FOREIGN KEY ("projectId") REFERENCES "Project"("id") ON DELETE CASCADE ON UPDATE CASCADE;
-- ProjectAgentLock: add heartbeatAt for liveness (A-5).
ALTER TABLE "ProjectAgentLock" ADD COLUMN "heartbeatAt" TIMESTAMP(3);
+55 -4
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@@ -84,6 +84,7 @@ model Project {
permissionSettings PermissionSettings[] @relation("projectSettings")
roleTriggerGrants RoleTriggerGrant[] @relation("projectRoleGrants")
auditEntries AuditEntry[] @relation("projectAudit")
fileChanges AgentFileChange[] @relation("projectFileChanges")
@@index([archivedAt])
}
@@ -125,6 +126,7 @@ model AgentSession {
project Project @relation(fields: [projectId], references: [id], onDelete: Cascade)
runs AgentRun[]
messages AgentMessage[] @relation("sessionMessages")
@@index([projectId, archivedAt])
@@index([provider, model])
@@ -172,6 +174,8 @@ model AgentRun {
session AgentSession? @relation(fields: [sessionId], references: [id], onDelete: SetNull)
requestedBy User? @relation("runRequester", fields: [requestedByUserId], references: [id], onDelete: SetNull)
projectLock ProjectAgentLock?
messages AgentMessage[] @relation("runMessages")
fileChanges AgentFileChange[] @relation("runFileChanges")
@@index([projectId, status])
@@index([sessionId])
@@ -184,11 +188,12 @@ model AgentRun {
/// a run holds at most one lock. WellFormed (holder is non-terminal) is an
/// app-level invariant checked on read/write, not a DB constraint.
model ProjectAgentLock {
projectId String @id
runId String @unique
projectId String @id
runId String @unique
holderUserId String?
acquiredAt DateTime @default(now())
expiresAt DateTime?
acquiredAt DateTime @default(now())
heartbeatAt DateTime?
expiresAt DateTime?
project Project @relation(fields: [projectId], references: [id], onDelete: Cascade)
run AgentRun @relation(fields: [runId], references: [id], onDelete: Cascade)
@@ -331,3 +336,49 @@ model FeishuEventReceipt {
@@index([messageId])
@@index([receivedAt])
}
// --- Structured run history (ADR-0003 Memory) ----------------------------
/// Per-message record of the agent loop. The transcript JSONL file remains the
/// agent's own read-back memory (runner loads it to seed the next run); these
/// rows are the queryable/auditable projection for admin APIs. ADR-0003:
/// session messages ≠ Feishu group chat history.
model AgentMessage {
id String @id @default(cuid())
sessionId String
runId String?
role String
content String
attachments Json
createdAt DateTime @default(now())
session AgentSession @relation("sessionMessages", fields: [sessionId], references: [id], onDelete: Cascade)
run AgentRun? @relation("runMessages", fields: [runId], references: [id], onDelete: SetNull)
@@index([sessionId, createdAt])
@@index([runId])
}
/// File change captured during a run (writeFile/rename/delete in workspace).
/// before/after hash + diff for audit and admin review. Linked to the run
/// that produced it; the tool's execute closure records via a sink the runner
/// injects into ToolContext (A-3 file-change capture).
model AgentFileChange {
id String @id @default(cuid())
runId String
projectId String
path String
operation String
beforeHash String?
afterHash String?
diff String?
metadata Json
createdAt DateTime @default(now())
run AgentRun @relation("runFileChanges", fields: [runId], references: [id], onDelete: Cascade)
project Project @relation("projectFileChanges", fields: [projectId], references: [id], onDelete: Cascade)
@@index([runId])
@@index([projectId])
@@index([path])
}
+122 -3
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@@ -8,6 +8,7 @@
* memory/anchors (ADR-0003), not by this runner.
*/
import { generateText, stepCountIs, type LanguageModel, type ModelMessage } from "ai";
import type { PrismaClient, Prisma } from "@prisma/client";
import type { ToolContext, ToolRegistry } from "./tools.js";
import { readTranscript, appendTranscript } from "./transcript.js";
@@ -35,6 +36,13 @@ export interface RunRequest {
/** Path to the session transcript JSONL. If set, prior messages are loaded
* from it before the run, and new messages are appended after. */
readonly transcriptPath?: string;
/** The real AgentRun.id (created by the caller before runAgent). Used for
* AgentMessage.runId and ProjectAgentLock heartbeat updates (A-5 liveness). */
readonly runId: string;
/** The AgentSession.id, for AgentMessage.sessionId. */
readonly sessionId: string;
/** Prisma client for persisting AgentMessage rows + lock heartbeats. */
readonly prisma: PrismaClient;
}
export type RunStatus = "completed" | "length" | "failed";
@@ -54,11 +62,20 @@ export async function runAgent(
tools: ToolRegistry,
req: RunRequest,
): Promise<RunResult> {
// A-3 file-change capture: the writeFile tool calls ctx.onFileChange with
// before/after hash when it modifies a workspace file. The runner injects
// this collector buffer; it is flushed to AgentFileChange rows after the
// run (success or failure). Undefined onFileChange = no-op (unit tests
// that don't exercise writes), so we always wire it here.
const fileChanges: FileChange[] = [];
const ctx: ToolContext = {
runId: cryptoRandomId(),
runId: req.runId,
projectId: req.project.projectId,
boundChatId: req.project.boundChatId,
workspaceDir: req.project.workspaceDir,
onFileChange: (c) => {
fileChanges.push(c);
},
};
const aiTools = tools.build(ctx, req.toolWhitelist);
@@ -82,9 +99,25 @@ export async function runAgent(
allowSystemInMessages: true,
tools: aiTools,
stopWhen: stepCountIs(cap),
onStepFinish: async () => {
// A-5 liveness: refresh the lock heartbeat after each model step so
// the liveness monitor sees activity while a long multi-step run is
// in flight. The lock may have been force-released (admin) between
// steps; that's not the runner's problem — swallow the update error.
try {
await req.prisma.projectAgentLock.update({
where: { runId: req.runId },
data: { heartbeatAt: new Date() },
});
} catch {
// Lock gone (force-released) or never held — best-effort.
}
},
});
const allMessages: ModelMessage[] = [...messages, ...result.responseMessages];
await appendTranscriptIfSet(req, allMessages, loadedCount);
await persistAgentMessages(req, result.responseMessages);
await flushFileChanges(req, fileChanges);
const stoppedByStepCap = result.finishReason === "tool-calls" && result.steps.length >= cap;
const status: RunStatus =
@@ -111,6 +144,8 @@ export async function runAgent(
};
} catch (e) {
await appendTranscriptIfSet(req, messages, loadedCount);
await persistAgentMessages(req, messages);
await flushFileChanges(req, fileChanges);
return {
status: "failed",
messages,
@@ -135,6 +170,90 @@ async function appendTranscriptIfSet(req: RunRequest, messages: readonly ModelMe
}
}
function cryptoRandomId(): string {
return globalThis.crypto.randomUUID();
/// Persist AgentMessage rows for the messages produced during this run
/// (A-3 structured history). Each ModelMessage becomes one row: text parts
/// are joined into `content`; non-text parts (tool-call / tool-result /
/// file / reasoning / …) are JSON-encoded into `attachments`. Best-effort:
/// a write failure on one row is swallowed — the run result is the source of
/// truth and must not be lost over persistence.
async function persistAgentMessages(req: RunRequest, messages: readonly ModelMessage[]): Promise<void> {
for (const msg of messages) {
try {
const { text, attachments } = extractMessageContent(msg);
await req.prisma.agentMessage.create({
data: {
sessionId: req.sessionId,
runId: req.runId,
role: msg.role,
content: text,
// AI SDK parts are JSON-serializable by construction; assert for Prisma's InputJsonValue.
attachments: attachments as Prisma.InputJsonValue,
},
});
} catch {
// Swallow: structured-history persistence is best-effort; a single row
// failure must not abort the run or lose the run result.
}
}
}
/// Extract the `content` string and `attachments` payload from a ModelMessage.
/// Runtime-narrows the AI SDK's part-typed content union: string content →
/// text directly; array content → join `text` parts, collect the rest as
/// attachments. Narrowing via `in` / `typeof` keeps the access compiler-checked
/// rather than asserted.
function extractMessageContent(msg: ModelMessage): { text: string; attachments: unknown[] } {
const content = msg.content;
if (typeof content === "string") {
return { text: content, attachments: [] };
}
if (!Array.isArray(content)) {
return { text: "", attachments: [content] };
}
const textParts: string[] = [];
const attachments: unknown[] = [];
for (const part of content) {
if (
part !== null &&
typeof part === "object" &&
"type" in part &&
part.type === "text" &&
"text" in part &&
typeof part.text === "string"
) {
textParts.push(part.text);
} else {
attachments.push(part);
}
}
return { text: textParts.join("\n"), attachments };
}
/// The file-change record the writeFile tool emits via ctx.onFileChange.
/// Derived from the ToolContext sink signature so it can't drift.
type FileChange = Parameters<NonNullable<ToolContext["onFileChange"]>>[0];
/// Flush the buffered file-change records to AgentFileChange rows (A-3).
/// Called after the run completes (success or failure) with whatever the
/// writeFile tool captured. Best-effort: a flush failure is swallowed — the
/// run result is the source of truth, not the change log.
async function flushFileChanges(req: RunRequest, changes: readonly FileChange[]): Promise<void> {
if (changes.length === 0) return;
try {
await req.prisma.agentFileChange.createMany({
data: changes.map((c) => ({
runId: req.runId,
projectId: req.project.projectId,
path: c.path,
operation: c.operation,
beforeHash: c.beforeHash,
afterHash: c.afterHash,
diff: c.diff,
metadata: {},
})),
});
} catch {
// Swallow: file-change capture is best-effort observability; must not
// lose the run result over a change-log write failure.
}
}
+5
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@@ -24,6 +24,11 @@ export interface ToolContext {
readonly boundChatId: string;
/** Absolute path to the project's curriculum engineering-file workspace. */
readonly workspaceDir: string;
/** Optional sink for file-change capture (A-3). The writeFile tool calls
* this with before/after hash when it modifies a file; the runner injects
* a collector that flushes to AgentFileChange at run end. Undefined when
* the runner doesn't wire capture (e.g. unit tests). */
readonly onFileChange?: (change: { path: string; operation: "CREATE" | "UPDATE" | "DELETE" | "RENAME"; beforeHash: string | null; afterHash: string | null; diff: string | null }) => void;
}
export type ToolDefinition = Tool;
+32
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@@ -8,6 +8,7 @@
* surface; the Hub agent is narrower than a general coding agent.
*/
import { readFile, writeFile, readdir, mkdir } from "node:fs/promises";
import { createHash } from "node:crypto";
import { join, resolve, relative, isAbsolute } from "node:path";
import { tool } from "ai";
import { z } from "zod";
@@ -67,8 +68,39 @@ export function writeFileTool(ctx: ToolContext): ToolDefinition {
execute: async (args): Promise<string> => {
try {
const full = confine(args.path, ctx.workspaceDir);
// A-3 file-change capture: compute before/after hashes around the write.
// A hashing failure must not block the write — skip the sink in that case.
let beforeHash: string | null = null;
let afterHash: string | null = null;
let operation: "CREATE" | "UPDATE" | null = null;
try {
let oldContent: string | null;
try {
oldContent = await readFile(full, "utf8");
} catch (e) {
if (e !== null && typeof e === "object" && "code" in e && e.code === "ENOENT") {
oldContent = null;
} else {
throw e;
}
}
afterHash = createHash("sha256").update(args.content).digest("hex");
beforeHash = oldContent === null ? null : createHash("sha256").update(oldContent).digest("hex");
if (beforeHash === null) {
operation = "CREATE";
} else if (beforeHash === afterHash) {
operation = null;
} else {
operation = "UPDATE";
}
} catch {
operation = null;
}
await mkdir(join(full, ".."), { recursive: true });
await writeFile(full, args.content, "utf8");
if (operation !== null && ctx.onFileChange !== undefined) {
ctx.onFileChange({ path: args.path, operation, beforeHash, afterHash, diff: null });
}
return JSON.stringify({ ok: true, path: args.path, bytes: args.content.length });
} catch (e) {
return JSON.stringify({ error: e instanceof Error ? e.message : String(e) });
+3
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@@ -251,6 +251,9 @@ export function makeTriggerHandler(deps: TriggerDeps) {
systemPrompt,
toolWhitelist: role?.tools,
transcriptPath: transcriptPath(project.workspaceDir, session.id),
runId: run.id,
sessionId: session.id,
prisma: deps.prisma,
})
.then(async (result) => {
await deps.prisma.agentRun.update({
+2
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@@ -27,6 +27,8 @@ export const prisma = new PrismaClient({
export async function resetDb(): Promise<void> {
const tables = [
"FeishuEventReceipt",
"AgentFileChange",
"AgentMessage",
"AuditEntry",
"PermissionSettings",
"PermissionGrant",
+16
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@@ -288,6 +288,22 @@ describe("trigger full lifecycle (integration)", () => {
expect(audit.some((a) => a.action === "run.created")).toBe(true);
expect(audit.some((a) => a.action === "run.finished")).toBe(true);
});
it("persists AgentMessage rows for the run (A-3 structured history)", async () => {
await seedProject("proj-15", "chat-15");
const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });
await trigger(makeEvent("chat-15", "@_user_1 写教案"), rt);
await vi.waitFor(async () => {
const msgs = await prisma.agentMessage.findMany();
expect(msgs.length).toBeGreaterThanOrEqual(1);
});
const msgs = await prisma.agentMessage.findMany({ orderBy: { createdAt: "asc" } });
expect(msgs.length).toBeGreaterThanOrEqual(1);
const run = await prisma.agentRun.findFirst();
expect(msgs.every((m) => m.runId === run?.id)).toBe(true);
expect(msgs.some((m) => m.role === "assistant")).toBe(true);
});
});
afterAll(async () => {