Search the spritetypes.txt file for sprite image definitions used in the interface.
AI agents call search_spritetypes to retrieve information from OSRS MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves sprite image definitions from a static data file. It performs a search/query operation without creating, modifying, deleting, or executing anything. The function is purely informational and read-only, consistent with other data query tools in the OSRS MCP server (search_invtypes, search_npctypes, etc.). No side effects or state changes are possible.
From the tool's definition Tool name contains 'search' and description states it 'Search[es] the spritetypes.txt file for sprite image definitions'. The verb 'search' combined with 'file' indicates a read-only query operation with no modification or execution capabilities.
Attacks that exploit this kind of access
Search the spritetypes.txt file for sprite image definitions used in the interface. It is categorised as a Read tool in the OSRS MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OSRS MCP Server MCP server in PolicyLayer and add a rule for search_spritetypes: 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 OSRS MCP Server. Nothing to install.
search_spritetypes 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 search_spritetypes 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 search_spritetypes. 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.
search_spritetypes is provided by the OSRS MCP Server MCP server (joshhmann/mcp-osrs). 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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