diff --git a/main.ts b/main.ts
index 5583c73..fd7315e 100644
--- a/main.ts
+++ b/main.ts
@@ -18,6 +18,8 @@ export interface MainResult {
   error?: string | undefined;
 }
 
+export type PromptJSON = {};
+
 export async function main(inputs: Inputs): Promise<MainResult> {
   try {
     log.info("Starting agent run...");
@@ -36,6 +38,10 @@ export async function main(inputs: Inputs): Promise<MainResult> {
     log.info("Running Claude Agent SDK...");
     log.box(inputs.prompt, { title: "Prompt" });
 
+    // TODO: check if `inputs.prompts` is JSON
+    // if yes, check if it's a webhook payload or toJSON(github.event)
+    // for webhook payloads, check the specified `agent` field
+
     const result = await claude.run({
       prompt: inputs.prompt,
       mcpServers,