# Reference

Lookup material. You know what you want — find it fast.

## Pages

- [Annotations](annotations/index.md) — Every annotation grouped by category (roles, actions, resilience, coordination, memory, security, channels, observability).
- [Tool Catalog](tool-catalog.md) — Quick lookup for the shipped POJO toolkits (full guide: [capabilities/tools/catalog](../capabilities/tools/catalog.md)).
- [SPI](spi.md) — Extension points for modular plug-ins.
- [LAM Pattern](lam-pattern.md) — Language-Action Model coordination pattern.
- [Configuration](configuration.md) — Environment variables, builder options.
- [Glossary](glossary.md) — Terms and acronyms used across the docs.