Search scaffold notes under vault/01_Notes only.
AI agents call note_search to retrieve information from Knowledge Wiki without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only search operation within a constrained directory (vault/01_Notes). It retrieves data without creating, modifying, deleting, or executing any operations. The constraint to a specific notes directory further reduces risk. No side effects or irreversible actions are possible.
From the tool's definition Tool name 'note_search' and description 'Search scaffold notes under vault/01_Notes only' indicate a search/retrieval operation with no modification capability.
Attacks that exploit this kind of access
Search scaffold notes under vault/01_Notes only. It is categorised as a Read tool in the Knowledge Wiki MCP Server, which means it retrieves data without modifying state.
Register the Knowledge Wiki MCP server in PolicyLayer and add a rule for note_search: 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 Wiki. Nothing to install.
note_search 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 note_search 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 note_search. 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.
note_search is provided by the Knowledge Wiki MCP server (pongs1/knowledge-wiki-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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