perception_dlm__on_step – 1 MCP server offers this tool
What it usually takes
step_idx– in 1 of 1
No server marks it as only reading: treat it as able to change data.
From each publisher's own tool list. We never call a tool.
Servers
| Server | Inputs | Read-only? |
|---|---|---|
PerceptionDLM Region Captioning co.huggingface.hugging-apps/perception-dlm | step_idx | Not stated |