Check HTML/CSS against brand rules — catches off-brand colors, wrong fonts, missing logo, and anti-pattern violations (drop shadows, gradients, etc.). Pass an HTML string or file path. Mode 'check' (default) runs all compliance checks and returns pass/warn/fail per rule. Mode 'rules' lists all ac...
Risk signalsAccepts raw HTML/template content (html)
Part of the Brandcode MCP server.
Free to start. No card required.
AI agents may call brand_preflight to permanently remove or destroy resources in Brandcode MCP. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. PolicyLayer blocks destructive tools by default and requires explicit human approval before enabling them.
Without a policy, an AI agent could call brand_preflight in a loop, permanently destroying resources in Brandcode MCP. There is no undo for destructive operations. PolicyLayer blocks this tool by default and only allows it when a human explicitly approves the action.
Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.
{
"version": "1",
"default": "deny",
"hide": [
"brand_preflight"
]
}See the full Brandcode MCP policy for all 43 tools.
These attack patterns abuse exactly the kind of access brand_preflight gives an agent. Each links to the full case and the policy that stops it:
Other destructive tools across the catalogue. The same approach applies to each: deny by default, or require human approval.
Check HTML/CSS against brand rules — catches off-brand colors, wrong fonts, missing logo, and anti-pattern violations (drop shadows, gradients, etc.). Pass an HTML string or file path. Mode 'check' (default) runs all compliance checks and returns pass/warn/fail per rule. Mode 'rules' lists all active preflight rules without checking content. Use after generating any visual content to validate brand compliance. Returns overall status and per-check details. NOT for scoring content copy — use brand_audit_content. NOT for brand directory validation — use brand_audit.. It is categorised as a Destructive tool in the Brandcode MCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Brandcode MCP server in PolicyLayer and add a rule for brand_preflight: 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_preflight is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the brand_preflight 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_preflight. 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_preflight 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.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.