feat: initialize experimental agent repo

This commit is contained in:
2026-06-30 14:03:49 +08:00
commit e83ac54a9e
75 changed files with 11690 additions and 0 deletions
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import {
createOpencode,
createOpencodeClient,
type OpencodeClient,
} from "@opencode-ai/sdk/v2";
import { existsSync, readFileSync } from "node:fs";
import { resolve } from "node:path";
import { config } from "../config.js";
import { logger } from "../logger.js";
const isDevelopmentDebugLoggingEnabled = process.env.NODE_ENV === "development";
const logDevelopmentDebug = (
message: string,
metadata: Record<string, unknown>,
) => {
if (!isDevelopmentDebugLoggingEnabled) {
return;
}
logger.info(metadata, message);
};
export type RuntimeHealth = {
healthy: boolean;
version: string;
};
type RuntimeModelOverride = {
providerID: string;
modelID: string;
};
export type PermissionReply = "once" | "always" | "reject";
export type QuestionAnswers = string[][];
type RuntimeMessage = {
info: {
id: string;
role: string;
};
};
const getRuntimeMessageRole = (message: RuntimeMessage) => message.info.role;
const getRuntimeMessageId = (message: RuntimeMessage) => message.info.id;
export class OpencodeRuntimeAdapter {
private clientPromise: Promise<OpencodeClient> | null = null;
private closeServer: (() => void) | null = null;
async ensureClient(): Promise<OpencodeClient> {
if (!this.clientPromise) {
this.clientPromise = this.bootstrapClient().catch((error) => {
this.clientPromise = null;
throw error;
});
}
return this.clientPromise;
}
async health(): Promise<RuntimeHealth> {
const client = await this.ensureClient();
const response = await client.global.health();
return requireData(response.data, "global.health");
}
async createSession(title?: string) {
const client = await this.ensureClient();
const response = await client.session.create({
title,
});
return requireData(response.data, "session.create");
}
async sendPrompt(sessionId: string, text: string) {
await this.prompt(sessionId, text);
// 当前 SDK 响应风格下,prompt() 本身不会直接返回完整 assistant parts
// 所以这里紧跟一次 messages() 回读,给上层路由统一消费。
return this.messages(sessionId);
}
async prompt(sessionId: string, text: string, model?: RuntimeModelOverride) {
const client = await this.ensureClient();
const startedAt = Date.now();
logDevelopmentDebug(
"dispatching opencode session.prompt",
{
sessionId,
model: model ?? null,
textChars: text.length,
},
);
await client.session.prompt({
sessionID: sessionId,
model,
parts: [{ type: "text", text }],
});
logDevelopmentDebug(
"opencode session.prompt returned",
{
sessionId,
elapsedMs: Math.max(0, Date.now() - startedAt),
},
);
}
async messages(sessionId: string, limit = 20) {
const client = await this.ensureClient();
const messages = await client.session.messages({
sessionID: sessionId,
limit,
});
return requireData(messages.data, "session.messages");
}
async revertMessage(sessionId: string, messageId: string) {
const client = await this.ensureClient();
const response = await client.session.revert({
sessionID: sessionId,
messageID: messageId,
});
return response.data;
}
async removeMessage(sessionId: string, messageId: string) {
const client = await this.ensureClient();
const response = await client.session.deleteMessage({
sessionID: sessionId,
messageID: messageId,
});
return response.data;
}
async revertToUserMessage(sessionId: string, options: { userOrdinal: number }) {
const messages = await this.messages(sessionId, 80);
const userMessages = messages.filter(
(message) => getRuntimeMessageRole(message) === "user",
);
const targetUserMessage = userMessages[options.userOrdinal - 1];
if (!targetUserMessage) {
if (messages.length === 0 && options.userOrdinal === 1) {
logger.warn(
{ sessionId, userOrdinal: options.userOrdinal },
"skipping opencode revert because runtime session has no messages",
);
return;
}
throw new Error("target user message not found to revert");
}
const targetMessageId = getRuntimeMessageId(targetUserMessage);
const targetIndex = messages.findIndex(
(message) => getRuntimeMessageId(message) === targetMessageId,
);
const messagesToRemove = targetIndex >= 0 ? messages.slice(targetIndex) : [targetUserMessage];
await this.revertMessage(sessionId, targetMessageId);
for (const message of messagesToRemove.reverse()) {
const messageId = getRuntimeMessageId(message);
try {
await this.removeMessage(sessionId, messageId);
} catch (error) {
logger.warn(
{ err: error, sessionId, messageId },
"failed to remove reverted opencode message",
);
}
}
}
async abortSession(sessionId: string) {
const client = await this.ensureClient();
const response = await client.session.abort({
sessionID: sessionId,
});
return requireData(response.data, "session.abort");
}
async waitForSessionIdle(sessionId: string, timeoutMs = config.OPENCODE_TIMEOUT_MS) {
const client = await this.ensureClient();
const startedAt = Date.now();
while (Date.now() - startedAt < timeoutMs) {
const response = await client.session.status({});
const statuses = requireData(response.data, "session.status");
const status = statuses[sessionId];
if (!status || status.type === "idle") {
return;
}
await delay(100);
}
logger.warn(
{ sessionId, timeoutMs },
"timed out waiting for opencode session to become idle",
);
}
async subscribeEvents() {
const client = await this.ensureClient();
const response = await client.event.subscribe();
return response.stream;
}
async replyPermission(options: {
requestId: string;
sessionId?: string;
reply: PermissionReply;
message?: string;
}) {
const client = await this.ensureClient();
if ("permission" in client && client.permission?.reply) {
const response = await client.permission.reply({
requestID: options.requestId,
reply: options.reply,
message: options.message,
});
return response.data;
}
if ("permission" in client && client.permission?.respond && options.sessionId) {
const response = await client.permission.respond({
sessionID: options.sessionId,
permissionID: options.requestId,
response: options.reply,
});
return response.data;
}
throw new Error("opencode permission reply API is unavailable");
}
async replyQuestion(options: {
requestId: string;
sessionId?: string;
answers: QuestionAnswers;
}) {
const client = await this.ensureClient();
if ("question" in client && client.question?.reply) {
try {
const response = await client.question.reply({
requestID: options.requestId,
answers: options.answers,
});
return response.data;
} catch (error) {
if (!options.sessionId) {
throw error;
}
}
}
const v2Question = (client as unknown as {
v2?: {
session?: {
question?: {
reply?: (parameters: {
sessionID: string;
requestID: string;
questionV2Reply: { answers: QuestionAnswers };
}) => Promise<{ data: unknown }>;
};
};
};
}).v2?.session?.question;
if (v2Question?.reply && options.sessionId) {
const response = await v2Question.reply({
sessionID: options.sessionId,
requestID: options.requestId,
questionV2Reply: {
answers: options.answers,
},
});
return response.data;
}
throw new Error("opencode question reply API is unavailable");
}
async rejectQuestion(options: {
requestId: string;
sessionId?: string;
}) {
const client = await this.ensureClient();
if ("question" in client && client.question?.reject) {
try {
const response = await client.question.reject({
requestID: options.requestId,
});
return response.data;
} catch (error) {
if (!options.sessionId) {
throw error;
}
}
}
const v2Question = (client as unknown as {
v2?: {
session?: {
question?: {
reject?: (parameters: {
sessionID: string;
requestID: string;
}) => Promise<{ data: unknown }>;
};
};
};
}).v2?.session?.question;
if (v2Question?.reject && options.sessionId) {
const response = await v2Question.reject({
sessionID: options.sessionId,
requestID: options.requestId,
});
return response.data;
}
throw new Error("opencode question reject API is unavailable");
}
async dispose(): Promise<void> {
this.closeServer?.();
this.closeServer = null;
this.clientPromise = null;
}
private async bootstrapClient(): Promise<OpencodeClient> {
if (config.OPENCODE_MODE === "client") {
logger.info(
{
baseUrl: config.OPENCODE_CLIENT_BASE_URL,
mode: config.OPENCODE_MODE,
},
"connecting to opencode server in client mode",
);
return createOpencodeClient({
baseUrl: config.OPENCODE_CLIENT_BASE_URL,
});
}
// embedded 模式下,把服务内工具桥地址注入到 opencode 进程环境里,
// 这样 .opencode/tools 下的自定义工具可以回调本服务。
process.env.TJWATER_AGENT_INTERNAL_BASE_URL = `http://127.0.0.1:${config.PORT}`;
process.env.TJWATER_AGENT_INTERNAL_TOKEN =
config.AGENT_INTERNAL_TOKEN ??
process.env.TJWATER_AGENT_INTERNAL_TOKEN ??
"";
logger.info(
{
hostname: config.OPENCODE_HOSTNAME,
port: config.OPENCODE_PORT,
model: config.OPENCODE_MODEL,
mode: config.OPENCODE_MODE,
},
"starting opencode server in embedded mode",
);
const startedAt = Date.now();
let runtime;
try {
runtime = await createOpencode({
hostname: config.OPENCODE_HOSTNAME,
port: config.OPENCODE_PORT,
timeout: config.OPENCODE_TIMEOUT_MS,
config: buildOpencodeConfig(),
});
} catch (error) {
if (isMissingOpencodeCli(error)) {
throw new Error(
"embedded mode requires the opencode CLI to be installed and available in PATH; otherwise set OPENCODE_MODE=client and provide OPENCODE_CLIENT_BASE_URL",
);
}
throw error;
}
logger.info(
{
elapsedMs: Math.max(0, Date.now() - startedAt),
hostname: config.OPENCODE_HOSTNAME,
port: config.OPENCODE_PORT,
mode: config.OPENCODE_MODE,
},
"opencode server started in embedded mode",
);
this.closeServer = () => {
runtime.server.close();
};
return runtime.client;
}
}
export const opencodeRuntime = new OpencodeRuntimeAdapter();
function buildOpencodeConfig(): Record<string, unknown> {
return deepMerge(
deepMerge(readProjectOpencodeConfig(), readEnvOpencodeConfig()),
{
model: config.OPENCODE_MODEL,
},
);
}
function readProjectOpencodeConfig(): Record<string, unknown> {
const path = resolve(process.cwd(), "opencode.json");
if (!existsSync(path)) {
return {};
}
return parseConfigJson(readFileSync(path, "utf8"), path);
}
function readEnvOpencodeConfig(): Record<string, unknown> {
const content = process.env.OPENCODE_CONFIG_CONTENT;
if (!content?.trim()) {
return {};
}
return parseConfigJson(content, "OPENCODE_CONFIG_CONTENT");
}
function parseConfigJson(content: string, source: string): Record<string, unknown> {
const parsed = JSON.parse(content) as unknown;
if (typeof parsed !== "object" || parsed === null || Array.isArray(parsed)) {
throw new Error(`${source} must contain a JSON object`);
}
return parsed as Record<string, unknown>;
}
function deepMerge(
left: Record<string, unknown>,
right: Record<string, unknown>,
): Record<string, unknown> {
const next = { ...left };
for (const [key, value] of Object.entries(right)) {
const existing = next[key];
if (isPlainObject(existing) && isPlainObject(value)) {
next[key] = deepMerge(existing, value);
} else {
next[key] = value;
}
}
return next;
}
function isPlainObject(value: unknown): value is Record<string, unknown> {
return typeof value === "object" && value !== null && !Array.isArray(value);
}
function isMissingOpencodeCli(error: unknown): error is NodeJS.ErrnoException {
return (
typeof error === "object" &&
error !== null &&
"code" in error &&
(error as NodeJS.ErrnoException).code === "ENOENT"
);
}
function requireData<T>(data: T | undefined, operation: string): T {
if (data === undefined) {
throw new Error(`${operation} returned no data`);
}
return data;
}
function delay(ms: number) {
return new Promise<void>((resolve) => {
setTimeout(resolve, ms);
});
}
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export type RuntimeSessionContext = {
actorKey: string;
allowLearningWrite?: boolean;
clientSessionId: string;
learningMode?: "interactive" | "review";
memoryListReadScopes?: Partial<Record<"user" | "workspace", boolean>>;
network?: string;
projectId?: string;
projectKey: string;
sessionId: string;
traceId: string;
};
const contexts = new Map<string, RuntimeSessionContext>();
export const setRuntimeSessionContext = (context: RuntimeSessionContext) => {
contexts.set(context.sessionId, { ...context });
};
export const getRuntimeSessionContext = (sessionId: string) => {
const context = contexts.get(sessionId);
return context ? { ...context } : null;
};
export const removeRuntimeSessionContext = (sessionId: string) => {
contexts.delete(sessionId);
};