upload_media_file
Upload a file to the media library or add a hosted file URL (max 25MB for direct uploads)
This record as markdown: /tools/hooker-dev-hailey-mcp/upload-media-file.md
What upload_media_file does on GoHighLevel MCP Server
AI agents use upload_media_file to create or update resources in GoHighLevel MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your GoHighLevel MCP Server environment.
Why upload_media_file is rated Medium
This tool creates new data (media files) in the GoHighLevel platform. While uploads are reversible (files can be deleted), the action itself is a Write operation that modifies system state by adding new resources. Severity is medium rather than high because media uploads have limited blast radius compared to financial transactions or cascading workflow modifications.
From the tool's definition Tool name 'upload_media_file' and description explicitly states 'Upload a file to the media library or add a hosted file URL'; this creates new media assets in the system.
Attacks that exploit this kind of access
The rule that runs upload_media_file safely
PolicyLayer is an MCP gateway: it sits between your AI agents and GoHighLevel MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For upload_media_file, this is the rule to start with:
upload_media_file 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 GoHighLevel MCP Server, apply this rule, and every upload_media_file call is checked against it from then on.
Questions about upload_media_file
Upload a file to the media library or add a hosted file URL (max 25MB for direct uploads). It is categorised as a Write tool in the GoHighLevel MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the GoHighLevel MCP Server MCP server in PolicyLayer and add a rule for upload_media_file: 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 GoHighLevel MCP Server. Nothing to install.
upload_media_file 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 upload_media_file 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 upload_media_file. 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.
upload_media_file is provided by the GoHighLevel MCP Server MCP server (hooker-dev/hailey-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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