dbg_step

SERVERBreakpoint SOURCEbreakpoint-mcp

Medium RISK CLASS

Category Write

Parameters 11 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/breakpoint-mcp/dbg-step.md

WHAT IT DOES

What dbg_step does on Breakpoint

AI agents use dbg_step to create or update resources in Breakpoint, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Breakpoint environment.

Parameter	Type	Required	Description
`kind`	string	Yes	Step kind

Parameters from the server's own tool schema.

RISK

Why dbg_step is rated Medium

An AI agent can call dbg_step faster than any human can review: one bad instruction and it creates or modifies resources in Breakpoint by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs dbg_step safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Breakpoint, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For dbg_step, this is the rule to start with:

dbg_step Rate-limited

dbg_step stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "dbg_step": {
      "limits": [
        {
          "counter": "dbg_step_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Breakpoint, apply this rule, and every dbg_step call is checked against it from then on.

FAQ

Questions about dbg_step

What does the dbg_step tool do? +

Step execution: 'over' (next), 'in' (stepIn), or 'out' (stepOut), then wait for the step to land. Returns the resulting state and stop reason. Note: stepOut may be unsupported on older Godot builds. Requires a stop; a running program is refused (not_stopped). It is categorised as a Write tool in the Breakpoint MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does dbg_step accept? +

dbg_step accepts 1 parameter: kind. Required: kind. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on dbg_step? +

Register the Breakpoint MCP server in PolicyLayer and add a rule for dbg_step: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Breakpoint. Nothing to install.

What risk level is dbg_step? +

dbg_step is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit dbg_step? +

Yes. Add a rate_limit block to the dbg_step rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block dbg_step completely? +

Set action: deny in the PolicyLayer policy for dbg_step. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides dbg_step? +

dbg_step is provided by the Breakpoint MCP server (breakpoint-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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