Reference

Exhaustive, look-it-up-fast documentation. Where the Guide teaches, the reference states the exact rules.

• Attributes — every #[facet(args::…)] and relevant facet attribute
• Entry Points — from_slice, from_std_args, builder, FigueBuiltins
• Builder API — ConfigBuilder, Driver, DriverOutcome, layer builders
• Supported Types — which Rust types parse, and how
• CLI Grammar — the exact command-line parsing rules
• Environment Variables — exact env var naming and value rules
• Config File Formats — JSON, JSONC, and the ConfigFormat trait
• Merge Precedence — how layers combine, field by field
• Errors — DriverError, SchemaError, exit codes, the full catalog
• JSON Schema Output — the exact shape of exported schemas