openclaw - 💡(How to fix) Fix Embedded agent JSON parse error during tool completion (position 1246) [1 participants]

TL;DR

The JSON parse error during embedded agent tool calls may be resolved by inspecting and correcting the JSON serialization of tool call parameters or response context.

Guidance

• Verify the JSON structure of tool call parameters to ensure it is well-formed and correctly nested, as the error suggests a malformed array element.
• Investigate the OpenClaw metadata wrapper to determine if it is altering the JSON structure in a way that causes the parse error.
• Check the logging serialization layer for potential issues with handling JSON data, such as incorrect character encoding or escaping.
• Review the full session logs, including the stack trace, to gain more insight into the error and its causes.

Example

No specific code snippet can be provided without more information on the tool call parameters or the OpenClaw logging serialization layer. However, a general example of well-formed JSON might look like:

{
  "key": "value",
  "array": [
    "element1",
    "element2"
  ]
}

Ensure that all JSON data follows this structure to prevent parse errors.

Notes

The error's intermittent nature and lack of clear pattern make it challenging to pinpoint the exact cause without further investigation. The fact that tool calls complete successfully despite the error suggests that the issue is isolated to the logging layer.

Recommendation

Apply a workaround by inspecting and correcting the JSON serialization of tool call parameters or response context, as this is the most likely cause of the error. This approach allows for targeted debugging without requiring a full understanding of the underlying system.