Count ISBNs in a wikitext string.
AI agents call get_isbn_count to retrieve information from Wikicitation without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and counts metadata (ISBNs) from provided wikitext without modifying, deleting, or executing any operations. It has no side effects and poses minimal security risk. It falls squarely into the Read category with low severity due to its purely analytical, non-destructive nature.
From the tool's definition Tool performs a count operation on ISBNs within wikitext strings. The verb 'count' and the read-only nature of scanning/tallying existing data without modification indicates this is a retrieval/query operation.
Attacks that exploit this kind of access
Count ISBNs in a wikitext string. It is categorised as a Read tool in the Wikicitation MCP Server, which means it retrieves data without modifying state.
Register the Wikicitation MCP server in PolicyLayer and add a rule for get_isbn_count: 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 Wikicitation. Nothing to install.
get_isbn_count 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 get_isbn_count 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 get_isbn_count. 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.
get_isbn_count is provided by the Wikicitation MCP server (jsobel1/wikicitation-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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