Fetch a single Codex Cloud chat by ID (e.g. task_e_...).
AI agents call get_chat to retrieve information from Codex Chats without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves an existing chat object by its identifier. The verb 'fetch' and the absence of any modification, deletion, or execution capability place it squarely in the Read category. The severity is low because retrieval operations have no destructive side effects, though access control and data sensitivity should still be considered in deployment.
From the tool's definition Tool name 'get_chat' and description 'Fetch a single Codex Cloud chat by ID' indicate data retrieval with no modification or execution.
Attacks that exploit this kind of access
Fetch a single Codex Cloud chat by ID (e.g. task_e_...). It is categorised as a Read tool in the Codex Chats MCP Server, which means it retrieves data without modifying state.
Register the Codex Chats MCP server in PolicyLayer and add a rule for get_chat: 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 Chats. Nothing to install.
get_chat 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 get_chat 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 get_chat. 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.
get_chat is provided by the Codex Chats MCP server (shoyu-ramen/codex-chats-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.
Teams ship this data inside their own products. See what a licence covers →