List characters with quick-identification summaries. Use this to help identify characters by appearance before looking up their full details. More efficient than loading full character data when you just need to identify who
AI agents call list_character_summaries to retrieve information from DMCP 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 character data in summarized form for identification purposes. It has no capability to modify, delete, or execute operations. The explicit purpose is efficient data retrieval. No financial, destructive, or execute-level operations are possible. This is a straightforward Read category tool with minimal risk—an AI agent cannot cause harm by listing character summaries in a game context.
From the tool's definition Tool name 'list_character_summaries' combined with description stating it 'List characters with quick-identification summaries' and 'More efficient than loading full character data when you just need to identify'—clearly a retrieval/query operation with no…
Documented attack patterns abuse exactly the kind of access list_character_summaries gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and DMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for list_character_summaries:
{
"version": "1",
"default": "deny",
"tools": {
"list_character_summaries": {}
}
}list_character_summaries is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List characters with quick-identification summaries. Use this to help identify characters by appearance before looking up their full details. More efficient than loading full character data when you just need to identify who. It is categorised as a Read tool in the DMCP MCP Server, which means it retrieves data without modifying state.
Register the D MCP server in PolicyLayer and add a rule for list_character_summaries: 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 DMCP. Nothing to install.
list_character_summaries 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_character_summaries 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_character_summaries. 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_character_summaries is provided by the D MCP server (shawnrushefsky/dmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from DMCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
204 DMCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.