archive_completed
Auto-archive completed tasks older than the threshold (default 7 days). Returns count.
This record as markdown: /tools/todos/archive-completed.md
What archive_completed does on Todos
AI agents use archive_completed 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 archive_completed is rated Medium
This tool modifies task data by changing task state to archived, which is a write operation. It is reversible (tasks can be unarchived), so it does not rise to Destructive. The scope is limited to completed tasks meeting a time threshold, reducing blast radius from critical to medium.
From the tool's definition Tool archives (moves/modifies state of) completed tasks older than a threshold. The word 'archive' indicates removal from active view by modifying task state, which is a reversible data modification.
Attacks that exploit this kind of access
The rule that runs archive_completed 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 archive_completed, this is the rule to start with:
archive_completed 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 archive_completed call is checked against it from then on.
Questions about archive_completed
Auto-archive completed tasks older than the threshold (default 7 days). Returns count. 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 archive_completed: 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.
archive_completed 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 archive_completed 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 archive_completed. 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.
archive_completed 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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