This record as markdown: /tools/io-github-malamutemayhem-unclick-mcp-server/hp-all-characters.md
What hp_all_characters does on UnClick
AI agents call hp_all_characters to retrieve information from UnClick without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why hp_all_characters is rated Low
This tool queries and returns a static list of Harry Potter characters. It performs no data modification, code execution, deletion, or financial operations. The blast radius of misuse is minimal—an AI agent cannot cause harm by listing fictional characters. This is a straightforward Read operation.
From the tool's definition Tool name 'hp_all_characters' and description 'List all Harry Potter characters' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
The rule that runs hp_all_characters safely
PolicyLayer is an MCP gateway: it sits between your AI agents and UnClick, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For hp_all_characters, this is the rule to start with:
hp_all_characters is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect UnClick, apply this rule, and every hp_all_characters call is checked against it from then on.
Questions about hp_all_characters
List all Harry Potter characters. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
Register the UnClick MCP server in PolicyLayer and add a rule for hp_all_characters: 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 UnClick. Nothing to install.
hp_all_characters 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 hp_all_characters 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 hp_all_characters. 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.
hp_all_characters is provided by the UnClick MCP server (@unclick/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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