List connected social media accounts. Returns platform, username, account ID, and workspace ID for each. Pass workspace_id to filter to a specific workspace; otherwise returns all accounts the caller owns across every workspace.
AI agents call list_accounts 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 tool retrieves and queries existing account metadata without creating, modifying, deleting, or executing any operations. It is a read-only enumeration of connected accounts. The severity is low because account metadata (platform, username, IDs) is typically non-sensitive operational information and the blast radius of misuse is minimal—an agent can only view what accounts exist, not modify or delete them.
From the tool's definition Tool name is 'list_accounts' and description states it 'List connected social media accounts' and 'Returns platform, username, account ID, and workspace ID for each.' The verb 'List' and 'Returns' indicate retrieval/query operations with no side effects.
Attacks that exploit this kind of access
List connected social media accounts. Returns platform, username, account ID, and workspace ID for each. Pass workspace_id to filter to a specific workspace; otherwise returns all accounts the caller owns across every workspace. 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 list_accounts: 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.
list_accounts 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 list_accounts 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 list_accounts. 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.
list_accounts 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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