stop_focus_session
Stop a focus session and log task time when linked to a task.
This record as markdown: /tools/todos/stop-focus-session.md
What stop_focus_session does on Todos
AI agents use stop_focus_session to create or update resources in Todos, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Todos environment.
Why stop_focus_session is rated Medium
This tool stops an active focus session and writes time-tracking data (logs task time). It modifies state by ending a session and recording data, but this is reversible/non-destructive. No code execution, financial transactions, or irreversible deletions are involved.
From the tool's definition Stop a focus session and log task time when linked to a task
Attacks that exploit this kind of access
The rule that runs stop_focus_session safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Todos, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For stop_focus_session, this is the rule to start with:
stop_focus_session stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Todos, apply this rule, and every stop_focus_session call is checked against it from then on.
Questions about stop_focus_session
Stop a focus session and log task time when linked to a task. It is categorised as a Write tool in the Todos MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Todos MCP server in PolicyLayer and add a rule for stop_focus_session: 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 Todos. Nothing to install.
stop_focus_session 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 stop_focus_session 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 stop_focus_session. 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.
stop_focus_session is provided by the Todos MCP server (@hasna/todos). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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