List all known IDE bridge instances (healthy and unhealthy) with their ports, workspace paths, and connection details.
AI agents call listBridges to retrieve information from Patchwork Os without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and enumerates bridge instances and their metadata (ports, workspace paths, connection details) without modifying or executing anything. It is a pure information retrieval operation with no side effects, fitting the Read category.
From the tool's definition Tool name 'listBridges' and description 'List all known IDE bridge instances' indicates querying/retrieving information about bridge instances. No data modification, deletion, or code execution is implied.
Documented attack patterns abuse exactly the kind of access listBridges gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Patchwork Os, and nothing reaches the server without passing your rules. This is the rule we recommend for listBridges:
{
"version": "1",
"default": "deny",
"tools": {
"listBridges": {}
}
}listBridges is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all known IDE bridge instances (healthy and unhealthy) with their ports, workspace paths, and connection details. It is categorised as a Read tool in the Patchwork Os MCP Server, which means it retrieves data without modifying state.
Register the Patchwork Os MCP server in PolicyLayer and add a rule for listBridges: 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 Patchwork Os. Nothing to install.
listBridges is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the listBridges 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 listBridges. 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.
listBridges is provided by the Patchwork Os MCP server (oolab-labs/patchwork-os). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Patchwork Os, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
11 Patchwork Os tools catalogued and risk-classified — across an index of 43,000+ MCP servers.