workflow_add_steps
Generate workflow step definitions
This record as markdown: /tools/barnburner121-plugin-hub-mcp/workflow-add-steps.md
What workflow_add_steps does on Plugin Hub
AI agents use workflow_add_steps to create or update resources in Plugin Hub, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Plugin Hub environment.
Why workflow_add_steps is rated Medium
An AI agent can call workflow_add_steps faster than any human can review: one bad instruction and it creates or modifies resources in Plugin Hub by the hundred, each call as confident as the last.
Attacks that exploit this kind of access
The rule that runs workflow_add_steps safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Plugin Hub, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For workflow_add_steps, this is the rule to start with:
workflow_add_steps 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 Plugin Hub, apply this rule, and every workflow_add_steps call is checked against it from then on.
Questions about workflow_add_steps
Generate workflow step definitions. It is categorised as a Write tool in the Plugin Hub MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Plugin Hub MCP server in PolicyLayer and add a rule for workflow_add_steps: 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 Plugin Hub. Nothing to install.
workflow_add_steps 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 workflow_add_steps 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 workflow_add_steps. 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.
workflow_add_steps is provided by the Plugin Hub MCP server (@barnburner121/plugin-hub-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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