cs_dbg_set_breakpoints

SERVERBreakpoint SOURCEbreakpoint-mcp

Medium RISK CLASS

Category Write

Parameters 32 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/breakpoint-mcp/cs-dbg-set-breakpoints.md

WHAT IT DOES

What cs_dbg_set_breakpoints does on Breakpoint

AI agents use cs_dbg_set_breakpoints 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
`path`	string	Yes	C# script path (res://..., absolute, or relative to the C# project root)
`lines`	array	Yes	1-based line numbers
`conditions`	array	—	Optional per-line condition expressions (aligned to lines, null to skip); break only when the expression is true

Parameters from the server's own tool schema.

RISK

Why cs_dbg_set_breakpoints is rated Medium

An AI agent can call cs_dbg_set_breakpoints 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.

Risk signalsAccepts file system path (path) · Admin/system-level operation

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs cs_dbg_set_breakpoints 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 cs_dbg_set_breakpoints, this is the rule to start with:

cs_dbg_set_breakpoints Rate-limited

cs_dbg_set_breakpoints 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": {
    "cs_dbg_set_breakpoints": {
      "limits": [
        {
          "counter": "cs_dbg_set_breakpoints_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 cs_dbg_set_breakpoints call is checked against it from then on.

FAQ

Questions about cs_dbg_set_breakpoints

What does the cs_dbg_set_breakpoints tool do? +

Set (replace) the breakpoints for a C# source file. Applied immediately if a session is running, else buffered until launch/attach. Feature-detected: the per-line conditions modifier is only sent when the connected adapter advertises supportsConditionalBreakpoints (netcoredbg does); on an adapter that advertises it unsupported the modifier is dropped and the result carries unsupported_modifiers plus a warning. Detection needs a live session, so set conditions after cs_dbg_launch/cs_dbg_attach. A path that names nothing, or names a directory, is refused: it previously answered exactly like a real file. A res:// or relative path that resolves outside the C# project root is refused too; an absolute path elsewhere is legal, because debugging a different .NET program is supported. 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 cs_dbg_set_breakpoints accept? +

cs_dbg_set_breakpoints accepts 3 parameters: path, lines, conditions. Required: path, lines. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on cs_dbg_set_breakpoints? +

Register the Breakpoint MCP server in PolicyLayer and add a rule for cs_dbg_set_breakpoints: 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 cs_dbg_set_breakpoints? +

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

Can I rate-limit cs_dbg_set_breakpoints? +

Yes. Add a rate_limit block to the cs_dbg_set_breakpoints 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 cs_dbg_set_breakpoints completely? +

Set action: deny in the PolicyLayer policy for cs_dbg_set_breakpoints. 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 cs_dbg_set_breakpoints? +

cs_dbg_set_breakpoints 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.

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