Import recent documents since last import with deduplication
AI agents use readwise_import_recent to create or update resources in Readwise MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Readwise MCP Server environment.
This tool writes data (imports documents) into the user's Readwise system, making it a Write-category operation. Severity is medium because while the operation is reversible (imported documents can be deleted), it modifies the user's data state and could potentially ingest unwanted or incorrect documents if an AI agent misuses the import parameters.
From the tool's definition The tool performs 'import' and explicitly mentions 'deduplication', which indicates it creates or modifies data by adding new documents to the user's Readwise collection.
Attacks that exploit this kind of access
Import recent documents since last import with deduplication. It is categorised as a Write tool in the Readwise MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Readwise MCP Server MCP server in PolicyLayer and add a rule for readwise_import_recent: 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 Readwise MCP Server. Nothing to install.
readwise_import_recent is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the readwise_import_recent 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 readwise_import_recent. 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.
readwise_import_recent is provided by the Readwise MCP Server MCP server (ngpestelos/readwise-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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