zernio_upload_whatsapp_flow_json
Upload or update the JSON definition of a WhatsApp Flow.
This record as markdown: /tools/eyalm321-zernio-mcp/zernio-upload-whatsapp-flow-json.md
What zernio_upload_whatsapp_flow_json does on Zernio
AI agents use zernio_upload_whatsapp_flow_json to create or update resources in Zernio, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Zernio environment.
Why zernio_upload_whatsapp_flow_json is rated Medium
This tool creates or modifies WhatsApp Flow definitions, which is a Write action—it changes configuration data but does not execute flows, delete data, or move money. The severity is medium because misconfiguration of WhatsApp automation flows could affect customer communications and business operations, but the change is reversible and limited to flow definitions rather than live message execution.
From the tool's definition The tool name and description indicate it 'Upload or update the JSON definition of a WhatsApp Flow.' The use of 'update' confirms this modifies data, and 'upload' indicates data creation. This is a reversible modification of WhatsApp Flow configuration.
Attacks that exploit this kind of access
The rule that runs zernio_upload_whatsapp_flow_json safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Zernio, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For zernio_upload_whatsapp_flow_json, this is the rule to start with:
zernio_upload_whatsapp_flow_json 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 Zernio, apply this rule, and every zernio_upload_whatsapp_flow_json call is checked against it from then on.
Questions about zernio_upload_whatsapp_flow_json
Upload or update the JSON definition of a WhatsApp Flow. It is categorised as a Write tool in the Zernio MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Zernio MCP server in PolicyLayer and add a rule for zernio_upload_whatsapp_flow_json: 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 Zernio. Nothing to install.
zernio_upload_whatsapp_flow_json 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 zernio_upload_whatsapp_flow_json 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 zernio_upload_whatsapp_flow_json. 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.
zernio_upload_whatsapp_flow_json is provided by the Zernio MCP server (eyalm321/zernio-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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