Build buyer personas through a guided 7-question interview — role, core tension, objections, information needs per journey stage, narrative emphasis, preferred channels, and decision authority. Mode 'interview' returns structured questions for agent-guided conversation. Mode 'record' saves a pers...
Part of the Brandcode MCP server.
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AI agents invoke brand_build_personas to trigger processes or run actions in Brandcode MCP. Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.
brand_build_personas can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. PolicyLayer enforces rate limits and validates arguments to keep execution within safe bounds.
Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.
{
"version": "1",
"default": "deny",
"tools": {
"brand_build_personas": {
"limits": [
{
"counter": "brand_build_personas_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}See the full Brandcode MCP policy for all 43 tools.
These attack patterns abuse exactly the kind of access brand_build_personas gives an agent. Each links to the full case and the policy that stops it:
Other execute tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Build buyer personas through a guided 7-question interview — role, core tension, objections, information needs per journey stage, narrative emphasis, preferred channels, and decision authority. Mode 'interview' returns structured questions for agent-guided conversation. Mode 'record' saves a persona to strategy.yaml (auto-generates ID like PER-001, accepts JSON or freeform text via parseAnswers). Mode 'list' shows all personas with status. Writes to .brand/strategy.yaml. Bumps session counter to 4 on first write. Most brands need 3-5 personas. Part of Session 4 (content strategy). Use when the user says 'define personas', 'who is our audience', or 'start Session 4'. NOT for defining voice — use brand_compile_messaging (Session 3). Returns persona data and total count.. It is categorised as a Execute tool in the Brandcode MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Brandcode MCP server in PolicyLayer and add a rule for brand_build_personas: 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 Brandcode MCP. Nothing to install.
brand_build_personas is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the brand_build_personas 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 brand_build_personas. 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.
brand_build_personas is provided by the Brandcode MCP server (@brandsystem/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 43 Brandcode MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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