improve agent api

mcp/config.ts

@@ -1,32 +1,31 @@
 /**
  * Simple MCP configuration helper for adding our minimal GitHub comment server
  */
+
+import type { McpServerConfig } from "@anthropic-ai/claude-agent-sdk";
 import { fromHere } from "@ark/fs";
 import { parseRepoContext } from "../utils/github.ts";
 
 const actionPath = fromHere("..");
 
-export const mcpServerName = "gh-pullfrog";
+export const ghPullfrogMcpName = "gh-pullfrog";
 
-export function createMcpConfig(githubInstallationToken: string) {
+export type McpName = typeof ghPullfrogMcpName;
+
+export type McpConfigs = Record<McpName, McpServerConfig>;
+
+export function createMcpConfigs(githubInstallationToken: string): McpConfigs {
   const repoContext = parseRepoContext();
   const githubRepository = `${repoContext.owner}/${repoContext.name}`;
 
-  return JSON.stringify(
-    {
-      mcpServers: {
-        [mcpServerName]: {
-          command: "node",
-          args: [`${actionPath}/mcp/server.ts`],
-          env: {
-            GITHUB_INSTALLATION_TOKEN: githubInstallationToken,
-            GITHUB_REPOSITORY: githubRepository,
-            LOG_LEVEL: process.env.LOG_LEVEL,
-          },
-        },
+  return {
+    [ghPullfrogMcpName]: {
+      command: "node",
+      args: [`${actionPath}/mcp/server.ts`],
+      env: {
+        GITHUB_INSTALLATION_TOKEN: githubInstallationToken,
+        GITHUB_REPOSITORY: githubRepository,
       },
     },
-    null,
-    2
-  );
+  };
 }