Get the platform schema for a specific connected account or platform. Call this before creating posts with platform_settings so you know allowed post types, media limits, helper tools, and field names.
AI agents call get_platform_schema to retrieve information from Posterly without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only operation that retrieves configuration and capability information about a social media platform. It has no side effects, does not create, modify, delete, or execute any operations. It is purely informational and used to inform the user or subsequent operations about what is allowed on a platform.
From the tool's definition Tool description states 'Get the platform schema' — a retrieval operation. It queries metadata about platform capabilities, post types, media limits, and field names without modifying or executing any actions.
Attacks that exploit this kind of access
Get the platform schema for a specific connected account or platform. Call this before creating posts with platform_settings so you know allowed post types, media limits, helper tools, and field names. It is categorised as a Read tool in the Posterly MCP Server, which means it retrieves data without modifying state.
Register the Posterly MCP server in PolicyLayer and add a rule for get_platform_schema: 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 Posterly. Nothing to install.
get_platform_schema is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_platform_schema 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 get_platform_schema. 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.
get_platform_schema is provided by the Posterly MCP server (posterly-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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