API error message confirmed the expected parameter is 'wall_message_id',
not 'wallId'. SPEC.md updated to reflect verified finding.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Implements four new MCP write tools via taskcreate2, taskupdate2,
taskmark, and metadelete endpoints. Confirmation prompts noted in
docstrings for destructive/mutating operations. Body parameters
documented in SPEC.md as pending verification via FW_DEBUG=1.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>