# LazyBridge

> Zero-boilerplate multi-provider LLM composition runtime, not an agent framework. Engine + Tools + State, everything is a tool.

## Category guides

- [Best Python AI agent frameworks](https://core.lazybridge.com/best-python-ai-agent-frameworks/index.md)

## Concepts

- [Canonical vs sugar](https://core.lazybridge.com/concepts/canonical-vs-sugar/index.md)
- [Everything is a tool](https://core.lazybridge.com/concepts/everything-is-a-tool/index.md)
- [Layered composition](https://core.lazybridge.com/concepts/layered-composition/index.md)
- [Mental model](https://core.lazybridge.com/concepts/mental-model/index.md)
- [Progressive complexity](https://core.lazybridge.com/concepts/progressive-complexity/index.md)

## Guides

- [BaseProvider](https://core.lazybridge.com/guides/advanced/base-provider/index.md)
- [Engine protocol](https://core.lazybridge.com/guides/advanced/engine-protocol/index.md)
- [OpenTelemetry](https://core.lazybridge.com/guides/advanced/otel/index.md)
- [Plan serialization](https://core.lazybridge.com/guides/advanced/plan-serialize/index.md)
- [Providers](https://core.lazybridge.com/guides/advanced/providers/index.md)
- [Visualizer](https://core.lazybridge.com/guides/advanced/visualizer/index.md)
- [Agent](https://core.lazybridge.com/guides/basic/agent/index.md)
- [Envelope](https://core.lazybridge.com/guides/basic/envelope/index.md)
- [Native tools](https://core.lazybridge.com/guides/basic/native-tools/index.md)
- [Tool](https://core.lazybridge.com/guides/basic/tool/index.md)
- [Checkpoint & resume](https://core.lazybridge.com/guides/full/checkpoint/index.md)
- [Composition patterns](https://core.lazybridge.com/guides/full/composition-patterns/index.md)
- [Exporters](https://core.lazybridge.com/guides/full/exporters/index.md)
- [GraphSchema](https://core.lazybridge.com/guides/full/graph-schema/index.md)
- [Parallel plan steps](https://core.lazybridge.com/guides/full/parallel-plan-steps/index.md)
- [Plan](https://core.lazybridge.com/guides/full/plan/index.md)
- [ReplanEngine](https://core.lazybridge.com/guides/full/replan-engine/index.md)
- [Routing](https://core.lazybridge.com/guides/full/routing/index.md)
- [Sentinels](https://core.lazybridge.com/guides/full/sentinels/index.md)
- [Step](https://core.lazybridge.com/guides/full/step/index.md)
- [SupervisorEngine](https://core.lazybridge.com/guides/full/supervisor/index.md)
- [As tool](https://core.lazybridge.com/guides/mid/as-tool/index.md)
- [Chain](https://core.lazybridge.com/guides/mid/chain/index.md)
- [DeduplicateGuard](https://core.lazybridge.com/guides/mid/dedup-guard/index.md)
- [Dynamic graph](https://core.lazybridge.com/guides/mid/dynamic-graph/index.md)
- [Evals](https://core.lazybridge.com/guides/mid/evals/index.md)
- [Guards](https://core.lazybridge.com/guides/mid/guards/index.md)
- [HumanEngine](https://core.lazybridge.com/guides/mid/human-engine/index.md)
- [Memory](https://core.lazybridge.com/guides/mid/memory/index.md)
- [Multimodal](https://core.lazybridge.com/guides/mid/multimodal/index.md)
- [Parallel](https://core.lazybridge.com/guides/mid/parallel/index.md)
- [Pool chains](https://core.lazybridge.com/guides/mid/pool-chain/index.md)
- [Session](https://core.lazybridge.com/guides/mid/session/index.md)
- [Store](https://core.lazybridge.com/guides/mid/store/index.md)
- [verify=](https://core.lazybridge.com/guides/mid/verify/index.md)

## Recipes

- [Overview](https://core.lazybridge.com/recipes/index.md)
- [Agent builds a plan](https://core.lazybridge.com/recipes/agent-builds-plan/index.md)
- [Blackboard planner](https://core.lazybridge.com/recipes/blackboard-planner/index.md)
- [Dynamic re-planning](https://core.lazybridge.com/recipes/dynamic-replanning/index.md)
- [Live visualization](https://core.lazybridge.com/recipes/live-visualization/index.md)
- [Plan tool](https://core.lazybridge.com/recipes/plan-tool/index.md)
- [React agent](https://core.lazybridge.com/recipes/react-agent/index.md)
- [Researcher → reporter](https://core.lazybridge.com/recipes/researcher-reporter/index.md)
- [Researcher (single agent)](https://core.lazybridge.com/recipes/researcher-single/index.md)
- [Supervisor pattern](https://core.lazybridge.com/recipes/supervisor-pattern/index.md)
- [Visualization mock](https://core.lazybridge.com/recipes/visualization-mock/index.md)

## Decisions

- [Overview](https://core.lazybridge.com/decisions/index.md)
- [Checkpoint & resume](https://core.lazybridge.com/decisions/checkpoint/index.md)
- [Composition](https://core.lazybridge.com/decisions/composition/index.md)
- [HumanEngine vs SupervisorEngine](https://core.lazybridge.com/decisions/human-engine-vs-supervisor/index.md)
- [Do I need Advanced?](https://core.lazybridge.com/decisions/need-advanced/index.md)
- [Parallelism](https://core.lazybridge.com/decisions/parallelism/index.md)
- [Pick your tier](https://core.lazybridge.com/decisions/pick-tier/index.md)
- [Return type](https://core.lazybridge.com/decisions/return-type/index.md)
- [State layer](https://core.lazybridge.com/decisions/state-layer/index.md)
- [verify= placement](https://core.lazybridge.com/decisions/verify-placement/index.md)

## Reference

- [Overview](https://core.lazybridge.com/reference/index.md)
- [Agent + Envelope](https://core.lazybridge.com/reference/agent/index.md)
- [Configs & testing](https://core.lazybridge.com/reference/configs/index.md)
- [Engines](https://core.lazybridge.com/reference/engines/index.md)
- [Extensions](https://core.lazybridge.com/reference/extensions/index.md)
- [Guards](https://core.lazybridge.com/reference/guards/index.md)
- [Multi-agent graphs](https://core.lazybridge.com/reference/multi-agent/index.md)
- [Custom providers](https://core.lazybridge.com/reference/providers/index.md)
- [Sentinels & predicates](https://core.lazybridge.com/reference/sentinels/index.md)
- [Session & observability](https://core.lazybridge.com/reference/session/index.md)
- [State primitives](https://core.lazybridge.com/reference/state/index.md)
- [Tool family](https://core.lazybridge.com/reference/tools/index.md)

## Errors

- [Errors](https://core.lazybridge.com/errors/index.md)

## Why

- [Why LazyBridge](https://core.lazybridge.com/why/index.md)

## Comparison

- [Comparison](https://core.lazybridge.com/comparison/index.md)