Complete a task by searching for it by name. Uses partial name matching.
AI agents use complete_task_by_name to create or update resources in Todoist MCP Helper — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Todoist MCP Helper environment.
Completing a task is a reversible modification (tasks can be uncompleted in Todoist). It does not create, execute external code, delete, or move money. However, it affects task state and uses partial name matching which introduces risk of completing the wrong task if multiple tasks have similar names.
From the tool's definition Tool performs 'complete_task_by_name' - marks a task as complete/done, which modifies the state of a task in Todoist. The description states it 'Complete[s] a task', indicating state modification rather than deletion or creation.
Attacks that exploit this kind of access
Complete a task by searching for it by name. Uses partial name matching. It is categorised as a Write tool in the Todoist MCP Helper MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Todoist MCP Helper MCP server in PolicyLayer and add a rule for complete_task_by_name: 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 Todoist MCP Helper. Nothing to install.
complete_task_by_name is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the complete_task_by_name 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 complete_task_by_name. 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.
complete_task_by_name is provided by the Todoist MCP Helper MCP server (littlepeter52012/todoist-mcp-helper). 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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