[STEP 5b — PREFERRED] BLOCKING call — waits for the next debugger pause, then checks if it matches the target location. ⚠️ NO AUTO-RESUME: execution stays paused after this returns, regardless of matched value. You decide what to do based on the "matched" field in the response: matched=true → cal...
Part of the Chrome Debugger MCP server.
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AI agents invoke waitForSpecificPause to trigger processes or run actions in Chrome Debugger MCP. Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.
waitForSpecificPause can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. PolicyLayer enforces rate limits and validates arguments to keep execution within safe bounds.
Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.
{
"version": "1",
"default": "deny",
"tools": {
"waitForSpecificPause": {
"limits": [
{
"counter": "waitforspecificpause_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}See the full Chrome Debugger MCP policy for all 18 tools.
These attack patterns abuse exactly the kind of access waitForSpecificPause gives an agent. Each links to the full case and the policy that stops it:
Other execute tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
[STEP 5b — PREFERRED] BLOCKING call — waits for the next debugger pause, then checks if it matches the target location. ⚠️ NO AUTO-RESUME: execution stays paused after this returns, regardless of matched value. You decide what to do based on the "matched" field in the response: matched=true → call getScopeVariables() immediately to read variables matched=false → the wrong breakpoint fired; call resume() to continue, then call waitForSpecificPause() again if you need to wait for the next pause. Must be called IMMEDIATELY after reloadPage() in the SAME AI turn. Before blocking, sends a notification to the user to trigger the page action. Editor line N → pass line=N-1 (CDP uses 0-based line numbers). Relay the "_ui" field from the response to the user once it returns.. It is categorised as a Execute tool in the Chrome Debugger MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Chrome Debugger MCP server in PolicyLayer and add a rule for waitForSpecificPause: 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 Chrome Debugger MCP. Nothing to install.
waitForSpecificPause is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the waitForSpecificPause 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.
Set action: deny in the PolicyLayer policy for waitForSpecificPause. 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.
waitForSpecificPause is provided by the Chrome Debugger MCP server (chrome-debugger-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 18 Chrome Debugger MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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