Realized signal accuracy — rolling 30-day win rate over CLOSED trade signals, where a win is a real take-profit / in-profit expiry (net positive after fees & leverage) and a loss is a real stop-loss / losing expiry. Win-rate is over resolved signals only; flat (break-even) and cancelled/no-fill/a...
Part of the Marketintell server.
Free to start. No card required.
AI agents invoke signal_performance to trigger processes or run actions in Marketintell. 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.
signal_performance 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": {
"signal_performance": {
"limits": [
{
"counter": "signal_performance_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}See the full Marketintell policy for all 17 tools.
These attack patterns abuse exactly the kind of access signal_performance 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.
Realized signal accuracy — rolling 30-day win rate over CLOSED trade signals, where a win is a real take-profit / in-profit expiry (net positive after fees & leverage) and a loss is a real stop-loss / losing expiry. Win-rate is over resolved signals only; flat (break-even) and cancelled/no-fill/ambiguous signals are reported but excluded from the rate. Broken down by timeframe and direction.. It is categorised as a Execute tool in the Marketintell MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Marketintell MCP server in PolicyLayer and add a rule for signal_performance: 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 Marketintell. Nothing to install.
signal_performance 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 signal_performance 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 signal_performance. 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.
signal_performance is provided by the Marketintell MCP server (marketintell). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 17 Marketintell 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.