Description
Tool calls for bash fails on at least some Qwen3.5 models.

Steps to Reproduce
afm mlx -m mlx-community/Qwen3.5-35B-A3B-4bit -p 8001

Error
AF-M

[ToolCallParser] Missing required string param 'command' for bash — not filling

pi agent

Validation failed for tool "bash":

• command: must have required property 'command'

Received arguments:
{}

Environment
AF-M version: v0.9.7-072340b (afm-next via Homebrew)
macOS 26 on Mac Mini M4
Model: mlx-community/Qwen3.5-35B-A3B-4bit