post_to_pinterest
Create a Pin on one of the user’s Pinterest boards from any finished visual they have — image, video, or a 2–5 slide CAROUSEL (pass the slides in order as imageUrls[] and Pinterest publishes one swipeable Pin). Title, description and destination link ride along. The link is what makes a Pin drive...
This record as markdown: /tools/hermoso/post-to-pinterest.md
What post_to_pinterest does on Hermoso
AI agents use post_to_pinterest to create or update resources in Hermoso, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Hermoso environment.
Why post_to_pinterest is rated Medium
An AI agent can call post_to_pinterest faster than any human can review: one bad instruction and it creates or modifies resources in Hermoso by the hundred, each call as confident as the last.
Attacks that exploit this kind of access
The rule that runs post_to_pinterest safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Hermoso, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For post_to_pinterest, this is the rule to start with:
post_to_pinterest 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 Hermoso, apply this rule, and every post_to_pinterest call is checked against it from then on.
Questions about post_to_pinterest
Create a Pin on one of the user’s Pinterest boards from any finished visual they have — image, video, or a 2–5 slide CAROUSEL (pass the slides in order as imageUrls[] and Pinterest publishes one swipeable Pin). Title, description and destination link ride along. The link is what makes a Pin drive traffic, so ask for it rather than omitting it, and the description is the text Pinterest search actually reads. boardId is REQUIRED: call list_pinterest_boards first and let the user choose. This PUBLISHES to their public profile — confirm the board, title and link before calling. Video Pins take a minute or two while Pinterest ingests the file. Needs Pinterest connected (Settings > Connectors > Pinterest). It is categorised as a Write tool in the Hermoso MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Hermoso MCP server in PolicyLayer and add a rule for post_to_pinterest: 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 Hermoso. Nothing to install.
post_to_pinterest 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 post_to_pinterest 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 post_to_pinterest. 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.
post_to_pinterest is provided by the Hermoso MCP server (https://app.hermoso.ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on Hermoso, and thousands of servers like it.
This server
Across the catalogue