List Harry Potter spells with their effects. Optionally filter by a spell-name substring.
AI agents call list_spells to retrieve information from Mcp Harrypotter without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
search | string | — | Case-insensitive spell-name substring filter. |
Parameters from the server's own tool schema.
This tool retrieves and queries spell data from the Harry Potter API with optional filtering. It has no side effects, does not modify data, execute code, delete records, or transfer money. It is a pure read operation that returns information about fictional spells.
From the tool's definition Tool name 'list_spells' and description 'List Harry Potter spells with their effects. Optionally filter by a spell-name substring' indicate data retrieval only.
Attacks that exploit this kind of access
List Harry Potter spells with their effects. Optionally filter by a spell-name substring. It is categorised as a Read tool in the Mcp Harrypotter MCP Server, which means it retrieves data without modifying state.
list_spells accepts 1 parameter: search. The full parameter table on this page comes from the server's own tool schema.
Register the Mcp Harrypotter MCP server in PolicyLayer and add a rule for list_spells: 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 Mcp Harrypotter. Nothing to install.
list_spells 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_spells 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_spells. 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_spells is provided by the Mcp Harrypotter MCP server (https://gateway.pipeworx.io/harrypotter/mcp). 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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