AI agents use wb_output to create or update resources in Workbench — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Workbench environment.
This tool registers and creates metadata associations between output files and tasks within a DAG-based approval and trust system. It performs reversible write operations (creating entries, associations, inferences) but does not delete data, execute arbitrary code, or move money.
From the tool's definition Tool name 'wb_output' and description '登记产出文件(必须先写文件;自动推断 kind 并关联已领取任务)' indicates registration/logging of output files.
Attacks that exploit this kind of access
登记产出文件(必须先写文件;自动推断 kind 并关联已领取任务). It is categorised as a Write tool in the Workbench MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Workbench MCP server in PolicyLayer and add a rule for wb_output: 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 Workbench. Nothing to install.
wb_output 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 wb_output 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 wb_output. 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.
wb_output is provided by the Workbench MCP server (nvrenshiren/workbench). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
wb_output is one line of Workbench's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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