ccxt_create_reduce_only_order
Call exchange.createReduceOnlyOrder(symbol, type, side, amount, price, params), subject to the trading gate.
This record as markdown: /tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-create-reduce-only-order.md
What ccxt_create_reduce_only_order does on Codex CCXT MCP
AI agents use ccxt_create_reduce_only_order to commit financial operations through Codex CCXT MCP, usually the final step of a payment, billing, or trading workflow. A call moves real money.
Why ccxt_create_reduce_only_order is rated Critical
This tool submits a live order to a financial exchange. Even though it is 'reduce-only' (closes/reduces an existing position), it directly commits a financial transaction that can result in realized gains or losses. The server description notes 'guarded trading tools' and a 'trading gate', but the tool itself executes real trades when the gate allows.
From the tool's definition createReduceOnlyOrder(...) - places a reduce-only order on an exchange, subject to the trading gate
Attacks that exploit this kind of access
The rule that runs ccxt_create_reduce_only_order safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Codex CCXT MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For ccxt_create_reduce_only_order, this is the rule to start with:
Any call to ccxt_create_reduce_only_order is blocked until a human approves it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Codex CCXT MCP, apply this rule, and every ccxt_create_reduce_only_order call is checked against it from then on.
Questions about ccxt_create_reduce_only_order
Call exchange.createReduceOnlyOrder(symbol, type, side, amount, price, params), subject to the trading gate. It is categorised as a Financial tool in the Codex CCXT MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Codex CCXT MCP server in PolicyLayer and add a rule for ccxt_create_reduce_only_order: 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 CCXT MCP. Nothing to install.
ccxt_create_reduce_only_order is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the ccxt_create_reduce_only_order 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 ccxt_create_reduce_only_order. 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.
ccxt_create_reduce_only_order is provided by the Codex CCXT MCP server (oci:ghcr.io/lucyfox199818-collab/ccxt-mcp:0.1.0). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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