Collaboratively plan an implementation with GPT Codex. Describe the problem and constraints, get a concrete approach with trade-offs and alternatives.
AI agents call codex_plan to retrieve information from Codex Bridge without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries GPT Codex for planning advice and returns a response. It retrieves information (a plan with trade-offs and alternatives) without creating, modifying, executing, or deleting any data. It is essentially a read/query operation against an external AI model.
From the tool's definition 'Collaboratively plan an implementation with GPT Codex. Describe the problem and constraints, get a concrete approach with trade-offs and alternatives.'
Attacks that exploit this kind of access
Collaboratively plan an implementation with GPT Codex. Describe the problem and constraints, get a concrete approach with trade-offs and alternatives. It is categorised as a Read tool in the Codex Bridge MCP Server, which means it retrieves data without modifying state.
Register the Codex Bridge MCP server in PolicyLayer and add a rule for codex_plan: 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 Bridge. Nothing to install.
codex_plan 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_plan 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_plan. 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_plan is provided by the Codex Bridge MCP server (ndcorder/claude-codex-team). 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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