let nextServerRequestId = 10_000;let pendingSkillsListRequestId: number | string | null = null;let pendingUserInputRequestId: number | null = null; const writeMessage = (message: unknown) => { process.stdout.write(`${JSON.stringify(message)}\n`);}; const respond = (id: number | string, result: unknown) => { writeMessage({ id, result });}; const respondError = (id: number | string, code: number, message: string) => { writeMessage({ id, error: { code, message, }, });}; const sendRequest = (method: string, params: unknown) => { const id = nextServerRequestId++; writeMessage({ id, method, params }); return id;}; const handleMethod = (message: Record<string, unknown>) => { const method = message.method; if (typeof method !== "string") { return; } switch (method) { case "initialize": { respond(message.id as number | string, { userAgent: "mock-codex-app-server", codexHome: process.cwd(), platformFamily: process.platform === "win32" ? "windows" : "unix", platformOs: process.platform === "darwin" ? "macos" : process.platform, }); return; } case "initialized": { writeMessage({ method: "item/agentMessage/delta", params: { delta: "Mock server is ready.", itemId: "item-1", threadId: "thread-1", turnId: "turn-1", }, }); return; } case "account/read": { respond(message.id as number | string, { account: { type: "chatgpt", email: "mock@example.com", planType: "plus", }, requiresOpenaiAuth: false, }); return; } case "skills/list": { pendingSkillsListRequestId = message.id as number | string; pendingUserInputRequestId = sendRequest("item/tool/requestUserInput", { itemId: "item-approval-1", threadId: "thread-1", turnId: "turn-1", questions: [ { id: "approved", header: "Approve", question: "Continue with the mock skills request?", options: [ { label: "yes", description: "Approve the request", }, ], }, ], }); return; } default: { if (message.id !== undefined) { respondError(message.id as number | string, -32601, `Unhandled request: ${method}`); } } }}; const handleResponse = (message: Record<string, unknown>) => { if (message.id !== pendingUserInputRequestId) { return; } pendingUserInputRequestId = null; respond(pendingSkillsListRequestId!, { data: [ { cwd: process.cwd(), errors: [], skills: [], }, ], }); pendingSkillsListRequestId = null;}; let remainder = ""; process.stdin.setEncoding("utf8");process.stdin.on("data", (chunk) => { remainder += chunk; const lines = remainder.split("\n"); remainder = lines.pop() ?? ""; for (const line of lines) { const trimmed = line.trim(); if (trimmed.length === 0) { continue; } const message = JSON.parse(trimmed) as Record<string, unknown>; if ("method" in message) { handleMethod(message); continue; } if ("id" in message) { handleResponse(message); } }}); process.stdin.on("end", () => { process.exit(0);});
let nextServerRequestId = 10_000;
let pendingSkillsListRequestId: number | string | null = null;
let pendingUserInputRequestId: number | null = null;
const writeMessage = (message: unknown) => {
process.stdout.write(`${JSON.stringify(message)}\n`);
};
const respond = (id: number | string, result: unknown) => {
writeMessage({ id, result });
};
const respondError = (id: number | string, code: number, message: string) => {
writeMessage({
id,
error: {
code,
message,
},
});
};
const sendRequest = (method: string, params: unknown) => {
const id = nextServerRequestId++;
writeMessage({ id, method, params });
return id;
};
const handleMethod = (message: Record<string, unknown>) => {
const method = message.method;
if (typeof method !== "string") {
return;
}
switch (method) {
case "initialize": {
respond(message.id as number | string, {
userAgent: "mock-codex-app-server",
codexHome: process.cwd(),
platformFamily: process.platform === "win32" ? "windows" : "unix",
platformOs: process.platform === "darwin" ? "macos" : process.platform,
});
return;
}
case "initialized": {
writeMessage({
method: "item/agentMessage/delta",
params: {
delta: "Mock server is ready.",
itemId: "item-1",
threadId: "thread-1",
turnId: "turn-1",
},
});
return;
}
case "account/read": {
respond(message.id as number | string, {
account: {
type: "chatgpt",
email: "mock@example.com",
planType: "plus",
},
requiresOpenaiAuth: false,
});
return;
}
case "skills/list": {
pendingSkillsListRequestId = message.id as number | string;
pendingUserInputRequestId = sendRequest("item/tool/requestUserInput", {
itemId: "item-approval-1",
threadId: "thread-1",
turnId: "turn-1",
questions: [
{
id: "approved",
header: "Approve",
question: "Continue with the mock skills request?",
options: [
{
label: "yes",
description: "Approve the request",
},
],
},
],
});
return;
}
default: {
if (message.id !== undefined) {
respondError(message.id as number | string, -32601, `Unhandled request: ${method}`);
}
}
}
};
const handleResponse = (message: Record<string, unknown>) => {
if (message.id !== pendingUserInputRequestId) {
return;
}
pendingUserInputRequestId = null;
respond(pendingSkillsListRequestId!, {
data: [
{
cwd: process.cwd(),
errors: [],
skills: [],
},
],
});
pendingSkillsListRequestId = null;
};
let remainder = "";
process.stdin.setEncoding("utf8");
process.stdin.on("data", (chunk) => {
remainder += chunk;
const lines = remainder.split("\n");
remainder = lines.pop() ?? "";
for (const line of lines) {
const trimmed = line.trim();
if (trimmed.length === 0) {
continue;
}
const message = JSON.parse(trimmed) as Record<string, unknown>;
if ("method" in message) {
handleMethod(message);
continue;
}
if ("id" in message) {
handleResponse(message);
}
}
});
process.stdin.on("end", () => {
process.exit(0);
});