pf_post_photo
Upload a photo and publish it as a status. Uploads via POST /api/v1/media then POST /api/v1/statuses. Pass file_path OR file_base64+filename. Rate-limited: 10/hour.
This record as markdown: /tools/kh0pper-crow/pf-post-photo.md
What pf_post_photo does on Crow
AI agents use pf_post_photo to create or update resources in Crow, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Crow environment.
Why pf_post_photo is rated Medium
This tool creates new data (media uploads and status posts) in a reversible manner. While it performs public actions on behalf of the user, the effects are not destructive (can be deleted), not financial, and not executing arbitrary code.
From the tool's definition Tool description states 'Upload a photo and publish it as a status' using POST requests to /api/v1/media and /api/v1/statuses, which are create operations that modify data.
Attacks that exploit this kind of access
The rule that runs pf_post_photo safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Crow, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For pf_post_photo, this is the rule to start with:
pf_post_photo 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 Crow, apply this rule, and every pf_post_photo call is checked against it from then on.
Questions about pf_post_photo
Upload a photo and publish it as a status. Uploads via POST /api/v1/media then POST /api/v1/statuses. Pass file_path OR file_base64+filename. Rate-limited: 10/hour. It is categorised as a Write tool in the Crow MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Crow MCP server in PolicyLayer and add a rule for pf_post_photo: 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 Crow. Nothing to install.
pf_post_photo 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 pf_post_photo 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 pf_post_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.
pf_post_photo is provided by the Crow MCP server (kh0pper/crow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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