auto_fit_table_columns
Set table columns to auto-fit based on content.
This record as markdown: /tools/cowork-bench/auto-fit-table-columns.md
What auto_fit_table_columns does on Cowork Bench
AI agents use auto_fit_table_columns 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 auto_fit_table_columns is rated Medium
The tool modifies table column widths automatically but does not create, read, or delete data—it adjusts existing table formatting. This is a non-destructive write operation that can be undone. The blast radius is minimal as it only affects presentation of existing data, not data integrity or external systems.
From the tool's definition The tool description states "Set table columns to auto-fit based on content," which indicates modifying table formatting properties. This is a reversible modification of document structure/layout.
Attacks that exploit this kind of access
The rule that runs auto_fit_table_columns 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 auto_fit_table_columns, this is the rule to start with:
auto_fit_table_columns 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 auto_fit_table_columns call is checked against it from then on.
Questions about auto_fit_table_columns
Set table columns to auto-fit based on content. 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 auto_fit_table_columns: 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.
auto_fit_table_columns 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 auto_fit_table_columns 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 auto_fit_table_columns. 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.
auto_fit_table_columns 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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