fix(anthropic): skip tool calls with empty names to prevent API errors (#1658)#1739
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yinwm merged 1 commit intosipeed:mainfrom Mar 18, 2026
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When building parameters for Anthropic API calls, tool calls with empty names would cause 400 Bad Request errors with the message: 'tool_use.name: String should have at least 1 character' This fix adds a check to skip tool calls that have empty names, preventing the API error and allowing the conversation to continue normally. Fixes sipeed#1658
afjcjsbx
approved these changes
Mar 18, 2026
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Description
This PR fixes issue #1658 where Anthropic API returns 400 Bad Request error when tool calls have empty names.
Problem
When messaging PicoClaw with Claude models, users consistently get this error:
Root Cause
When building parameters for Anthropic API calls in
buildParams(), tool calls with empty names were being passed directly to the API, which rejects them.Solution
Added a simple check to skip tool calls that have empty names before constructing the API request. This prevents the API error and allows the conversation to continue normally.
Type of Change
AI Code Generation
Related Issue
Fixes #1658
Technical Context
Similar fix was implemented in OpenClaw: openclaw/openclaw@aa56045
Test Environment
Checklist