Policy Format

Bundle Structure

Top-level structure of the Fairvisor policy bundle JSON file.

Selectors

Route matching in policy selectors — hosts, pathExact, pathPrefix, and methods.

Rules & Descriptors

Rule structure, descriptor keys, and algorithm_config reference.

Kill Switches

Instant traffic blocking matched on any request descriptor, with optional TTL.

Loop Detection

Detect and block agentic request loops using sliding-window fingerprint counters.

Circuit Breaker

Budget-rate circuit breaker that trips when spend velocity exceeds a threshold.

Shadow Mode

Dry-run enforcement: track would-reject decisions without blocking traffic.

ip:type

Using ip:type descriptor for network-type-aware policies.

ua:bot_category values

Reference list of bot categories returned by the ua:bot_category descriptor.