fb_upload_photo

Upload a photo to a Facebook Page from a URL. Can include a caption. Set published=false for an unpublished photo (use in multi-photo posts).

Accepts URL/endpoint input (url)

Part of the Facebook Pages MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

node2flow/facebook-pages Write Risk 2/5

// WHEN AI AGENTS USE THIS TOOL

AI agents use fb_upload_photo to create or modify resources in Facebook Pages. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

// WHY ENFORCE A POLICY ON FB_UPLOAD_PHOTO

Without a policy, an AI agent could call fb_upload_photo repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Facebook Pages.

// RECOMMENDED POLICY

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

node2flow-facebook-pages.yaml

tools:
  fb_upload_photo:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Facebook Pages policy for all 28 tools.

// DETAILS

Tool Name fb_upload_photo

Category Write

MCP Server Facebook Pages MCP Server

Risk Level Medium

// MORE FACEBOOK PAGES TOOLS

Destructive fb_delete_comment Destructive fb_delete_photo Destructive fb_delete_post Destructive fb_delete_video Write fb_create_comment Write fb_create_post Write fb_hide_comment Write fb_reply_comment

View all 28 tools →

// WHAT CAN GO WRONG

Agents calling write-class tools like fb_upload_photo have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

// OTHER WRITE TOOLS ACROSS MCP SERVERS

Other tools in the Write risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.

AbraFlexi contact_create AbraFlexi contact_update AbraFlexi evidence_create AbraFlexi evidence_update AbraFlexi invoice_issued_update AbraFlexi invoice_received_create

// RELATED READING

// FAQ

What does the fb_upload_photo tool do? +

Upload a photo to a Facebook Page from a URL. Can include a caption. Set published=false for an unpublished photo (use in multi-photo posts).. It is categorised as a Write tool in the Facebook Pages MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on fb_upload_photo? +

Add a rule in your Intercept YAML policy under the tools section for fb_upload_photo. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Facebook Pages MCP server.

What risk level is fb_upload_photo? +

fb_upload_photo is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit fb_upload_photo? +

Yes. Add a rate_limit block to the fb_upload_photo rule in your Intercept 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.

How do I block fb_upload_photo completely? +

Set action: deny in the Intercept policy for fb_upload_photo. 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.

What MCP server provides fb_upload_photo? +

fb_upload_photo is provided by the Facebook Pages MCP server (node2flow/facebook-pages). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

fb_upload_photo

Enforce policies on Facebook Pages