Delete a planner note.
AI agents call canvas_delete_planner_note to permanently remove resources in Canvas LMS MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Deletion of user data (planner notes) is an irreversible action that cannot be undone. This fits the Destructive category definition: 'irreversibly deletes or overwrites data, or actions that cannot be undone.' Severity is medium rather than high because the blast radius is limited to personal planner notes (low business impact) rather than critical course data or administrative records, though the action is…
From the tool's definition The tool name is "canvas_delete_planner_note" and the description explicitly states "Delete a planner note." The verb "Delete" indicates irreversible removal of data.
Attacks that exploit this kind of access
Delete a planner note. It is categorised as a Destructive tool in the Canvas LMS MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Canvas LMS MCP Server MCP server in PolicyLayer and add a rule for canvas_delete_planner_note: 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 Canvas LMS MCP Server. Nothing to install.
canvas_delete_planner_note 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 canvas_delete_planner_note 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 canvas_delete_planner_note. 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.
canvas_delete_planner_note is provided by the Canvas LMS MCP Server MCP server (sweeden-ttu/canvas-lms-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.
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