M
MastraAI•2w ago
randyklex

update working memory tool call errors on searchString

The update working memory tool call regularly errors in the first call w/ this error. 
"state": "result",
            "toolCallId": "call_W84bP8Lo2qCwIYe03QDLCgTJ",
            "toolName": "updateWorkingMemory",
            "args": {
                "newMemory": "#User\n- First Name: Randy\n- Last Name: Lynn",
                "searchString": null,
                "updateReason": "append-new-memory"
            },
"result": {
                "error": true,
                "message": "Tool validation failed for updateWorkingMemory. Please fix the following errors and try again:\n- searchString: Expected string, received null\n\nProvided arguments: {\n  \"newMemory\": \"#User\\n- First Name: Randy\\n- Last Name: Lynn\",\n  \"searchString\": null,\n  \"updateReason\": \"append-new-memory\"\n}",
                "validationErrors": {
                    "_errors": [],
                    "searchString": {
                        "_errors": [
                            "Expected string, received null"
                        ]
                    }
                }
            }
"state": "result",
            "toolCallId": "call_W84bP8Lo2qCwIYe03QDLCgTJ",
            "toolName": "updateWorkingMemory",
            "args": {
                "newMemory": "#User\n- First Name: Randy\n- Last Name: Lynn",
                "searchString": null,
                "updateReason": "append-new-memory"
            },
"result": {
                "error": true,
                "message": "Tool validation failed for updateWorkingMemory. Please fix the following errors and try again:\n- searchString: Expected string, received null\n\nProvided arguments: {\n  \"newMemory\": \"#User\\n- First Name: Randy\\n- Last Name: Lynn\",\n  \"searchString\": null,\n  \"updateReason\": \"append-new-memory\"\n}",
                "validationErrors": {
                    "_errors": [],
                    "searchString": {
                        "_errors": [
                            "Expected string, received null"
                        ]
                    }
                }
            }
from what I understand this is internal tools and prompting within Mastra. the agent definitely figures this out and makes a tool call again, passing searchstring = "" and successfully updates the memory. Would be nice to have this looked at to avoid the multiple tool calls for updateWorkingMemory.
3 Replies
Mastra Triager
Mastra Triager•7d ago
📝 Created GitHub issue: https://github.com/mastra-ai/mastra/issues/8805
GitHub
[DISCORD:1427319015478657034] update working memory tool call error...
This issue was created from Discord post: https://discord.com/channels/1309558646228779139/1427319015478657034 The update working memory tool call regularly errors in the first call w/ this error. ...
_roamin_
_roamin_•7d ago
Hi @randyklex ! What LLM are you using? searchString is an optional field, so I'm guessing zod does not consider null to be an "optional" value 🤔
randyklex
randyklexOP•6d ago
o3

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