Return a list of the brand voices/tones belonging to the user. These brand voices include a description to help the LLM and/or the user pick an appropriate tone, and a toneId that can be passed to jasper
AI agents call get-jasper-brand-voices to retrieve information from Jasper AI MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves configuration metadata (brand voices and tone IDs) belonging to the user without creating, modifying, deleting, or executing any operations. It is purely informational and supports downstream operations but has no autonomous effects. Low severity because the data returned is non-sensitive configuration information used for content generation context.
From the tool's definition Tool description states it 'Return[s] a list' of brand voices with no modification or side effects. The verb 'return' and the passive retrieval of user data indicates a read-only query operation.
Attacks that exploit this kind of access
Return a list of the brand voices/tones belonging to the user. These brand voices include a description to help the LLM and/or the user pick an appropriate tone, and a toneId that can be passed to jasper. It is categorised as a Read tool in the Jasper AI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Jasper AI MCP Server MCP server in PolicyLayer and add a rule for get-jasper-brand-voices: 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 Jasper AI MCP Server. Nothing to install.
get-jasper-brand-voices 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-jasper-brand-voices 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-jasper-brand-voices. 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-jasper-brand-voices is provided by the Jasper AI MCP Server MCP server (latecheckout/jasper-mcp-proto). 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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