openbook_cancelOrder
Cancel an open order on an Openbook market. SAP MCP context: This Synapse AgentKit tool is served beside the sap_* SDK tools. Use sap_agent_identity_plan, sap_payments_register_agent, sap_payments_update_agent, and sap_publish_tool_by_name when the capability should become part of an on-chain SAP...
This record as markdown: /tools/oobe-protocol-labs-sap-mcp-server/openbook-cancelorder.md
What openbook_cancelOrder does on Sap
AI agents call openbook_cancelOrder to permanently remove resources in Sap, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
| Parameter | Type | Required | Description |
|---|---|---|---|
wallet | string | Yes | Solana public key (base58) |
orderId | string | Yes | Order ID parameter for Openbook Cancel Order. |
marketId | string | Yes | Solana public key (base58) |
Parameters from the server's own tool schema.
Why openbook_cancelOrder is rated Critical
Cancelling an open market order is irreversible; the order cannot be reinstated once cancelled.
From the tool's definition Cancel an open order on an Openbook market
Attacks that exploit this kind of access
The rule that runs openbook_cancelOrder safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Sap, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For openbook_cancelOrder, this is the rule to start with:
openbook_cancelOrder is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Sap, apply this rule, and every openbook_cancelOrder call is checked against it from then on.
Questions about openbook_cancelOrder
Cancel an open order on an Openbook market. SAP MCP context: This Synapse AgentKit tool is served beside the sap_* SDK tools. Use sap_agent_identity_plan, sap_payments_register_agent, sap_payments_update_agent, and sap_publish_tool_by_name when the capability should become part of an on-chain SAP agent profile or tool registry entry. SAP MCP execution guidance: Intent: SAP MCP tool workflow. Pricing: paid read-premium; estimate first, then use sap_payments_call_paid_tool when the runtime cannot replay x402 natively. Routing: paid hosted call; call sap_estimate_tool_cost first, then use sap_payments_call_paid_tool if the runtime cannot handle x402 natively. Signer boundary: hosted reads/builders never receive keypair bytes; value-moving results must be finalized locally when signing is required. It is categorised as a Destructive tool in the Sap MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
openbook_cancelOrder accepts 3 parameters: wallet, orderId, marketId. Required: wallet, orderId, marketId. The full parameter table on this page comes from the server's own tool schema.
Register the Sap MCP server in PolicyLayer and add a rule for openbook_cancelOrder: 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 Sap. Nothing to install.
openbook_cancelOrder is a Destructive 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 openbook_cancelOrder 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 openbook_cancelOrder. 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.
openbook_cancelOrder is provided by the Sap MCP server (https://mcp.sap.oobeprotocol.ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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