feat: add CLI arguments to agent create command for scripting

packages/opencode/src/cli/cmd/agent.ts

@@ -11,7 +11,58 @@ import { EOL } from "os"
 const AgentCreateCommand = cmd({
   command: "create",
   describe: "create a new agent",
-  async handler() {
+  builder: (yargs) =>
+    yargs
+      .option("path", {
+        type: "string",
+        describe: "directory path to generate the agent file",
+      })
+      .option("description", {
+        type: "string",
+        describe: "what the agent should do",
+      })
+      .option("mode", {
+        type: "string",
+        describe: "agent mode",
+        choices: ["all", "primary", "subagent"] as const,
+      }),
+  async handler(args) {
+    const cliPath = args.path as string | undefined
+    const cliDescription = args.description as string | undefined
+    const cliMode = args.mode as "all" | "primary" | "subagent" | undefined
+
+    const isNonInteractive = cliPath && cliDescription && cliMode
+
+    if (isNonInteractive) {
+      await Instance.provide({
+        directory: process.cwd(),
+        async fn() {
+          const generated = await Agent.generate({ description: cliDescription }).catch((error) => {
+            console.error(`Error: LLM failed to generate agent: ${error.message}`)
+            process.exit(1)
+          })
+
+          const frontmatter: any = {
+            description: generated.whenToUse,
+            mode: cliMode,
+          }
+
+          const content = matter.stringify(generated.systemPrompt, frontmatter)
+          const agentDir = path.join(cliPath, "agent")
+          const filePath = path.join(agentDir, `${generated.identifier}.md`)
+
+          const file = Bun.file(filePath)
+          if (await file.exists()) {
+            console.error(`Error: Agent file already exists: ${filePath}`)
+            process.exit(1)
+          }
+
+          await Bun.write(filePath, content)
+          console.log(filePath)
+        },
+      })
+      return
+    }
     await Instance.provide({
       directory: process.cwd(),
       async fn() {