highlight_table_header
Apply special highlighting to table header row.
This record as markdown: /tools/cowork-bench/highlight-table-header.md
What highlight_table_header does on Cowork Bench
AI agents use highlight_table_header 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 highlight_table_header is rated Medium
This tool modifies the appearance of a table header row by applying highlighting formatting. It creates a reversible visual change to existing document content, making it a Write operation. No data is deleted, no code is executed, and no financial transactions are involved. Severity is low as it only affects document formatting.
From the tool's definition Apply special highlighting to table header row
Attacks that exploit this kind of access
The rule that runs highlight_table_header 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 highlight_table_header, this is the rule to start with:
highlight_table_header 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 highlight_table_header call is checked against it from then on.
Questions about highlight_table_header
Apply special highlighting to table header row. 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 highlight_table_header: 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.
highlight_table_header 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 highlight_table_header 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 highlight_table_header. 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.
highlight_table_header 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.
More on Cowork Bench, and thousands of servers like it.
This server
Across the catalogue