# Review Comment

- **Author:** coderabbitai[bot]
- **File:** `issues/todo/ViMax_Complete_Integration_Package/src/agents/novel_compressor.py`
- **Line:** 146
- **Date:** 2026-02-03
- **Comment ID:** 2756912862
- **URL:** https://github.com/donghaozhang/video-agent-skill/pull/16#discussion_r2756912862

---

_⚠️ Potential issue_ | _🔴 Critical_

**Return type mismatch: returns tuple but annotated as `str`.**

The method returns `(index, compressed_novel_chunk)` at Line 146, but the return type annotation says `str`. Also, the `index` parameter at Line 128 is missing a type hint.

<details>
<summary>🐛 Proposed fix</summary>

```diff
     async def compress_single_novel_chunk(
         self,
         semaphore: asyncio.Semaphore,
-        index,
+        index: int,
         novel_chunk: str,
-    ) -> str:
+    ) -> Tuple[int, str]:
         async with semaphore:
             logging.info(f"Compressing novel chunk {index}")
             messages = [
                 SystemMessage(
                     content=system_prompt_template_compress_novel_chunk
                 ),
                 HumanMessage(
                     content=human_prompt_template_compress_novel_chunk.format(
                         novel_chunk=novel_chunk
                     )
                 ),
             ]
             response = await self.chat_model.ainvoke(messages)
             compressed_novel_chunk = response.content
             logging.info(f"Compressed novel chunk {index}")
-        return index, compressed_novel_chunk
+            return index, compressed_novel_chunk
```
</details>

<details>
<summary>🤖 Prompt for AI Agents</summary>

```
In
`@issues/todo/ViMax_Complete_Integration_Package/src/agents/novel_compressor.py`
around lines 125 - 146, The function compress_single_novel_chunk currently
declares a return type of str but actually returns a tuple (index,
compressed_novel_chunk); update the signature of compress_single_novel_chunk to
annotate the index parameter (e.g., index: int) and change the return type to
reflect the tuple (e.g., -> tuple[int, str] or Tuple[int, str]) so the signature
matches the returned (index, compressed_novel_chunk) and imports typing.Tuple if
needed.
```

</details>

<!-- fingerprinting:phantom:medusa:ocelot -->

<!-- This is an auto-generated comment by CodeRabbit -->
