Get a credential from Proton Pass by name. Returns username, password, and URLs.
AI agents call pass__get_item to retrieve information from Proton-MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves sensitive data (credentials) but does not modify, delete, or execute operations. It is a read operation that queries Proton Pass for stored credentials. Severity is low because reading credentials alone does not change system state, though the data sensitivity warrants secure handling in practice. Confidence is high because the description unambiguously indicates a retrieval operation.
From the tool's definition Tool description states 'Get a credential from Proton Pass by name. Returns username, password, and URLs.' The verb 'get' and operation of retrieving stored credentials without modification indicates a read operation.
Documented attack patterns abuse exactly the kind of access pass__get_item gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Proton-MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for pass__get_item:
{
"version": "1",
"default": "deny",
"tools": {
"pass__get_item": {}
}
}pass__get_item is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get a credential from Proton Pass by name. Returns username, password, and URLs. It is categorised as a Read tool in the Proton-MCP MCP Server, which means it retrieves data without modifying state.
Register the Proton- MCP server in PolicyLayer and add a rule for pass__get_item: 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 Proton-MCP. Nothing to install.
pass__get_item 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 pass__get_item 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 pass__get_item. 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.
pass__get_item is provided by the Proton- MCP server (jorgenclaw/proton-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Proton-MCP, 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.
36 Proton-MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.