Use ONLY when the user explicitly mentions "note" or "notes" to retrieve notes between two dates (e.g. "what notes from last week?"). Returns notes by creation date only - does NOT search note content or filter by other criteria. NEVER use this tool for finding contacts or any other purpose besid...
Part of the Mesh MCP server.
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AI agents call getNotes to retrieve information from Mesh MCP without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though getNotes only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"getNotes": {}
}
}See the full Mesh MCP policy for all 20 tools.
These attack patterns abuse exactly the kind of access getNotes gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Use ONLY when the user explicitly mentions "note" or "notes" to retrieve notes between two dates (e.g. "what notes from last week?"). Returns notes by creation date only - does NOT search note content or filter by other criteria. NEVER use this tool for finding contacts or any other purpose besides retrieving notes. This tool is strictly prohibited from being used unless "note" or "notes" are explicitly mentioned in the query.. It is categorised as a Read tool in the Mesh MCP MCP Server, which means it retrieves data without modifying state.
Register the Mesh MCP server in PolicyLayer and add a rule for getNotes: 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 Mesh MCP. Nothing to install.
getNotes 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 getNotes 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 getNotes. 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.
getNotes is provided by the Mesh MCP server (clay-inc/clay-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 20 Mesh MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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