AI agents call codex_status to retrieve information from Codex without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears designed to retrieve status information about codex operations (likely command execution status or workflow state). With an empty description, confidence is reduced, but the naming convention and context of a tmux/git persistence server strongly suggests this is a read-only query operation. No evidence of destructive, write, execute, or financial operations.
From the tool's definition Tool name 'codex_status' suggests querying status information with no side effects. Server description indicates this is part of a tmux/git workflow tool, and 'status' typically retrieves state without modification.
Attacks that exploit this kind of access
codex_status. It is categorised as a Read tool in the Codex MCP Server, which means it retrieves data without modifying state.
Register the Codex MCP server in PolicyLayer and add a rule for codex_status: 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 Codex. Nothing to install.
codex_status 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 codex_status 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 codex_status. 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.
codex_status is provided by the Codex MCP server (shilong20/codexmcp). 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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