Retrieve detailed information and raw content of a specific knowledge base chunk by its ID.
AI agents call knowledge_get_chunk to retrieve information from Knowledge MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool queries and returns data from a knowledge base without side effects. It performs a straightforward data retrieval by chunk ID, analogous to a database GET or fetch operation. No creation, modification, deletion, or code execution is described or implied.
From the tool's definition Tool name and description indicate retrieval only: 'Retrieve detailed information and raw content of a specific knowledge base chunk by its ID.' The verb 'retrieve' and absence of any modification, creation, deletion, or execution language clearly position…
Attacks that exploit this kind of access
Retrieve detailed information and raw content of a specific knowledge base chunk by its ID. It is categorised as a Read tool in the Knowledge MCP MCP Server, which means it retrieves data without modifying state.
Register the Knowledge MCP server in PolicyLayer and add a rule for knowledge_get_chunk: 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 Knowledge MCP. Nothing to install.
knowledge_get_chunk 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 knowledge_get_chunk 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 knowledge_get_chunk. 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.
knowledge_get_chunk is provided by the Knowledge MCP server (paulthesecond/knowledgebase-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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