# Review Comment

- **Author:** coderabbitai[bot]
- **File:** `packages/core/ai_content_platform/vimax/interfaces/character.py`
- **Line:** 181
- **Date:** 2026-02-03
- **Comment ID:** 2757023931
- **URL:** https://github.com/donghaozhang/video-agent-skill/pull/16#discussion_r2757023931

---

_⚠️ Potential issue_ | _🟡 Minor_

**Add error handling for missing `project_id` in `from_dict`.**

If the input `data` dict is missing `project_id`, this will raise an unclear `KeyError`. Consider adding validation or a helpful error message.


<details>
<summary>🛡️ Proposed fix</summary>

```diff
     `@classmethod`
     def from_dict(cls, data: dict) -> "CharacterPortraitRegistry":
         """Deserialize registry from dict."""
+        if "project_id" not in data:
+            raise ValueError("Registry data must contain 'project_id'")
         portraits = {
             name: CharacterPortrait(**portrait_data)
             for name, portrait_data in data.get("portraits", {}).items()
         }
         return cls(
             project_id=data["project_id"],
             portraits=portraits,
         )
```
</details>

<!-- suggestion_start -->

<details>
<summary>📝 Committable suggestion</summary>

> ‼️ **IMPORTANT**
> Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

```suggestion
    `@classmethod`
    def from_dict(cls, data: dict) -> "CharacterPortraitRegistry":
        """Deserialize registry from dict."""
        if "project_id" not in data:
            raise ValueError("Registry data must contain 'project_id'")
        portraits = {
            name: CharacterPortrait(**portrait_data)
            for name, portrait_data in data.get("portraits", {}).items()
        }
        return cls(
            project_id=data["project_id"],
            portraits=portraits,
        )
```

</details>

<!-- suggestion_end -->

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

```
In `@packages/core/ai_content_platform/vimax/interfaces/character.py` around lines
171 - 181, The CharacterPortraitRegistry.from_dict currently assumes
data["project_id"] exists and will raise an unhelpful KeyError; update from_dict
to validate presence of project_id (e.g., using data.get("project_id") or an
explicit check) and raise a clear ValueError with a descriptive message if it's
missing, then proceed to construct the registry with the validated project_id
and the existing portraits parsing logic.
```

</details>

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