MVP-advice guardrail. Use before telling a founder to build when trust, permission, embeddedness, or guardian proof is untested.
Risk signalsHandles credentials or secrets (api_key)
Part of the MVR API - Minimum Viable Relationships server.
Free to start. No card required.
AI agents invoke mvr_preflight_mvp to trigger processes or run actions in MVR API - Minimum Viable Relationships. 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.
mvr_preflight_mvp 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": {
"mvr_preflight_mvp": {
"limits": [
{
"counter": "mvr_preflight_mvp_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}See the full MVR API - Minimum Viable Relationships policy for all 19 tools.
These attack patterns abuse exactly the kind of access mvr_preflight_mvp 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.
MVP-advice guardrail. Use before telling a founder to build when trust, permission, embeddedness, or guardian proof is untested.. It is categorised as a Execute tool in the MVR API - Minimum Viable Relationships MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the MVR API - Minimum Viable Relationships MCP server in PolicyLayer and add a rule for mvr_preflight_mvp: 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 MVR API - Minimum Viable Relationships. Nothing to install.
mvr_preflight_mvp 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 mvr_preflight_mvp 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 mvr_preflight_mvp. 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.
mvr_preflight_mvp is provided by the MVR API - Minimum Viable Relationships MCP server (https://africanmarketos.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 19 MVR API - Minimum Viable Relationships 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.