AI agents call op_read_secret to retrieve information from Op without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads/retrieves secrets from a password vault with no modification or deletion. It falls under the 'Read' category. Severity is 'high' because unauthorized access to secrets could expose credentials, API keys, and other sensitive authentication material—a significant blast radius if an AI agent misuses it or requests secrets inappropriately.
From the tool's definition Tool name 'op_read_secret' indicates secret retrieval. Server description states it 'provides secure access to 1Password secrets and item management' and enables clients to 'read' password vault items.
Attacks that exploit this kind of access
op_read_secret. It is categorised as a Read tool in the Op MCP Server, which means it retrieves data without modifying state.
Register the Op MCP server in PolicyLayer and add a rule for op_read_secret: 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 Op. Nothing to install.
op_read_secret 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 op_read_secret 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 op_read_secret. 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.
op_read_secret is provided by the Op MCP server (jluckyiv/op-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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