feat: add coding agent setup command

README.md

@@ -180,6 +180,18 @@ mmx config set --key default-text-model --value MiniMax-M3
 mmx config export-schema | jq .
 ```
 
+### `mmx agent setup`
+
+Configure MiniMax for Claude Code, Codex, Grok Build, OpenCode, Hermes, or Pi while preserving unrelated settings. Run without options for the interactive wizard; supplying options makes the command non-interactive and suitable for scripts.
+
+```bash
+mmx agent setup
+mmx agent setup --agent codex --agent claude-code --api-key "$MINIMAX_API_KEY" --region global
+mmx agent setup --all --api-key "$MINIMAX_API_KEY" --region cn --output json
+```
+
+The command verifies the key and selected region before writing. Existing files are backed up when changed; use `--dry-run` to preview without a live request. Agent setup only writes configuration files; it does not install or launch the selected agents.
+
 ### `mmx update`
 
 ```bash

README_CN.md

@@ -156,6 +156,18 @@ mmx config set --key default-text-model --value MiniMax-M3
 mmx config export-schema | jq .
 ```
 
+### `mmx agent setup`
+
+一键为 Claude Code、Codex、Grok Build、OpenCode、Hermes 或 Pi 配置 MiniMax，并保留配置文件中的其他设置。不带选项时进入交互式向导；带选项时自动使用非交互模式，便于脚本调用。
+
+```bash
+mmx agent setup
+mmx agent setup --agent codex --agent claude-code --api-key "$MINIMAX_API_KEY" --region global
+mmx agent setup --all --api-key "$MINIMAX_API_KEY" --region cn --output json
+```
+
+写入前会验证 Key 和所选区域；修改已有文件时会创建备份。可用 `--dry-run` 预览且不会发起联网请求。该命令只管理配置文件，不会安装或启动所选 Agent。
+
 ### `mmx update`
 
 ```bash

package.json

@@ -40,10 +40,15 @@
     "test:watch": "bun test --watch"
   },
   "dependencies": {
-    "@clack/prompts": "^0.7.0",
+    "@clack/core": "1.0.0",
+    "@clack/prompts": "1.0.0",
     "bun-plugin-dts": "^0.4.0",
     "es-toolkit": "^1.46.1",
-    "undici": "^6.21.1"
+    "jsonc-parser": "^3.3.1",
+    "picocolors": "^1.1.1",
+    "smol-toml": "^1.8.0",
+    "undici": "^6.21.1",
+    "yaml": "^2.9.0"
   },
   "devDependencies": {
     "@eslint/js": "^9.0.0",

src/agent/availability.ts

@@ -0,0 +1,38 @@
+import { accessSync, constants, statSync } from 'fs';
+import { delimiter, join } from 'path';
+
+import { AGENT_IDS, type AgentId } from './types';
+
+const AGENT_EXECUTABLES: Record<AgentId, readonly string[]> = {
+  'claude-code': ['claude'],
+  codex: ['codex'],
+  grok: ['grok', 'grok-build', 'grok-cli'],
+  opencode: ['opencode'],
+  hermes: ['hermes'],
+  pi: ['pi'],
+};
+
+export function detectAgentsOnPath(env: NodeJS.ProcessEnv = process.env): Set<AgentId> {
+  const pathValue = process.platform === 'win32' ? env.PATH ?? env.Path : env.PATH;
+  if (pathValue === undefined) return new Set();
+  const directories = pathValue
+    .split(delimiter)
+    .map((directory) => directory.replace(/^"|"$/g, ''));
+  const extensions = process.platform === 'win32'
+    ? (env.PATHEXT ?? '.COM;.EXE;.BAT;.CMD').split(';')
+    : [''];
+  const accessMode = process.platform === 'win32' ? constants.F_OK : constants.X_OK;
+
+  return new Set(AGENT_IDS.filter((agent) => AGENT_EXECUTABLES[agent].some(
+    (command) => directories.some((directory) => extensions.some((extension) => {
+      const candidate = join(directory, `${command}${extension}`);
+      try {
+        if (!statSync(candidate).isFile()) return false;
+        accessSync(candidate, accessMode);
+        return true;
+      } catch {
+        return false;
+      }
+    })),
+  )));
+}