protect_document
Add password protection to a Word document.
This record as markdown: /tools/cowork-bench/protect-document.md
What protect_document does on Cowork Bench
AI agents use protect_document to create or update resources in Cowork Bench, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Cowork Bench environment.
Why protect_document is rated Medium
This tool modifies an existing document by adding password protection settings, which is a write operation. It does not delete data (not Destructive), execute arbitrary code (not Execute), or move money (not Financial). The modification is reversible (protection can be removed or changed).
From the tool's definition Tool description states 'Add password protection to a Word document' — modifies document metadata/properties by adding protection, a reversible change.
Attacks that exploit this kind of access
The rule that runs protect_document safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Cowork Bench, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For protect_document, this is the rule to start with:
protect_document 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 Cowork Bench, apply this rule, and every protect_document call is checked against it from then on.
Questions about protect_document
Add password protection to a Word document. It is categorised as a Write tool in the Cowork Bench MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Cowork Bench MCP server in PolicyLayer and add a rule for protect_document: 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 Cowork Bench. Nothing to install.
protect_document 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 protect_document 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 protect_document. 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.
protect_document is provided by the Cowork Bench MCP server (0717376/cowork_bench). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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