diff --git a/src/hooks/comment-checker/cli-runner.ts b/src/hooks/comment-checker/cli-runner.ts
index 42cc19232..00f5a0411 100644
--- a/src/hooks/comment-checker/cli-runner.ts
+++ b/src/hooks/comment-checker/cli-runner.ts
@@ -47,6 +47,9 @@ export async function processWithCli(
   cliPath: string,
   customPrompt: string | undefined,
   debugLog: (...args: unknown[]) => void,
+  deps: {
+    runCommentChecker?: typeof runCommentChecker
+  } = {},
 ): Promise<void> {
   await withCommentCheckerLock(async () => {
     void input
@@ -67,7 +70,7 @@ export async function processWithCli(
       },
     }
 
-    const result = await runCommentChecker(hookInput, cliPath, customPrompt)
+    const result = await (deps.runCommentChecker ?? runCommentChecker)(hookInput, cliPath, customPrompt)
 
     if (result.hasComments && result.message) {
       debugLog("CLI detected comments, appending message")