This record as markdown: /tools/adamhancock-bullmq-mcp/add-job.md
What add_job does on BullMQ MCP Server
AI agents use add_job to create or update resources in BullMQ MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your BullMQ MCP Server environment.
Why add_job is rated Medium
Adding a job to a queue creates a new record in the BullMQ system. This is reversible (the job can be removed, failed, or cleaned up), making it a Write operation rather than Execute (which would require actual code execution) or Destructive (which would be irreversible). The severity is medium because misuse could flood queues with unwanted jobs, but the effect is reversible and limited to queue state.
From the tool's definition Tool is named 'add_job' and described as 'Add a new job to the queue'. The sibling tools include destructive operations (clean_queue, drain_queue) and read operations (get_job, get_jobs, list_queues), establishing that this server manages job queues.
Attacks that exploit this kind of access
The rule that runs add_job safely
PolicyLayer is an MCP gateway: it sits between your AI agents and BullMQ MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For add_job, this is the rule to start with:
add_job 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 BullMQ MCP Server, apply this rule, and every add_job call is checked against it from then on.
Questions about add_job
Add a new job to the queue. It is categorised as a Write tool in the BullMQ MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the BullMQ MCP Server MCP server in PolicyLayer and add a rule for add_job: 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 BullMQ MCP Server. Nothing to install.
add_job 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 add_job 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 add_job. 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.
add_job is provided by the BullMQ MCP Server MCP server (adamhancock/bullmq-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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