refactor action to use INPUTS_JSON object

entry.ts

@@ -2,49 +2,26 @@
 
 /**
  * Entry point for GitHub Action
- * This file is bundled to entry.cjs and called directly by GitHub Actions
  */
 
 import * as core from "@actions/core";
-import { type ExecutionInputs, type MainParams, main } from "./main.ts";
+import { type } from "arktype";
+import { main, Inputs } from "./main.ts";
 import packageJson from "./package.json" with { type: "json" };
-import { setupGitHubInstallationToken } from "./utils/github.ts";
 
 async function run(): Promise<void> {
   try {
     console.log(`🐸 Running pullfrog/action@${packageJson.version}...`);
-    const prompt = core.getInput("prompt", { required: true });
-    const anthropic_api_key = core.getInput("anthropic_api_key");
 
-    if (!prompt) {
-      throw new Error("prompt is required");
+    const inputsJson = process.env.INPUTS_JSON;
+    if (!inputsJson) {
+      throw new Error("INPUTS_JSON environment variable not found");
     }
 
-    const inputs: ExecutionInputs = {
-      prompt,
-      anthropic_api_key,
-    };
+    const parsed = type("string.json.parse").assert(inputsJson);
+    const inputs = Inputs.assert(parsed);
 
-    const githubToken = core.getInput("github_token") || process.env.GITHUB_TOKEN;
-    if (githubToken) {
-      inputs.github_token = githubToken;
-    }
-
-    const githubInstallationToken =
-      core.getInput("github_installation_token") || process.env.GITHUB_INSTALLATION_TOKEN;
-    if (githubInstallationToken) {
-      inputs.github_installation_token = githubInstallationToken;
-    } else {
-      await setupGitHubInstallationToken();
-    }
-
-    const params: MainParams = {
-      inputs,
-      env: {},
-      cwd: process.cwd(),
-    };
-
-    const result = await main(params);
+    const result = await main(inputs);
 
     if (!result.success) {
       throw new Error(result.error || "Agent execution failed");
@@ -55,7 +32,4 @@ async function run(): Promise<void> {
   }
 }
 
-run().catch((error) => {
-  console.error("Action failed:", error);
-  process.exit(1);
-});
+await run();