# oridecon-contracts > Zero-dependency protocols, value types, and exceptions shared across every package. Machine index for **oridecon-contracts** only. Rules: https://oridecon.dev/agents.md · Catalog: https://oridecon.dev/llms.txt · Slices: https://oridecon.dev/llms/index.txt · Skill: https://oridecon.dev/SKILL.md ## Package - Name: `oridecon-contracts` - Group: Foundation — Application, container, providers, modules, config, Result. - Docs: https://oridecon.dev/packages/foundation/oridecon-contracts/ - Source (branch `dev`): https://github.com/dbtinoy-/oridecon/tree/dev/core/oridecon-contracts - This slice: https://oridecon.dev/llms/oridecon-contracts.txt - Install: `uv add oridecon-contracts` ## Boundaries - Extensions import only `oridecon` and `oridecon-contracts` — never each other. - Shared types live in `oridecon-contracts`. Do not invent a second copy here. - Constructor injection. `register()` binds, `boot()` resolves. - Domain failures are `Result[T, E]`. Infrastructure failures raise. - One tree: `domains/` (not `models/`), app-root `di/` for `*_provider.py`. ## Docs in this package - [Contracts (oridecon-contracts)](https://oridecon.dev/packages/foundation/oridecon-contracts/): Protocols, types, exceptions, domain, Result - [API Reference](https://oridecon.dev/packages/foundation/oridecon-contracts/api/): Complete API reference for the oridecon-contracts package. - [Architecture](https://oridecon.dev/packages/foundation/oridecon-contracts/docs/architecture/): Architecture for oridecon-contracts - [Configuration](https://oridecon.dev/packages/foundation/oridecon-contracts/docs/configuration/): Configuration for oridecon-contracts - [Guide](https://oridecon.dev/packages/foundation/oridecon-contracts/docs/guide/): Guide for oridecon-contracts - [How-To Guides](https://oridecon.dev/packages/foundation/oridecon-contracts/docs/howtos/): How-To Guides for oridecon-contracts - [Quickstart](https://oridecon.dev/packages/foundation/oridecon-contracts/docs/quickstart/): Quickstart for oridecon-contracts - [Troubleshooting](https://oridecon.dev/packages/foundation/oridecon-contracts/docs/troubleshooting/): Troubleshooting for oridecon-contracts ## See also - Playbook: https://oridecon.dev/getting-started/for-coding-agents/ - Fail vs fix: https://oridecon.dev/getting-started/common-mistakes/ - Group hub: https://oridecon.dev/packages/foundation/ - Skill: https://oridecon.dev/SKILL.md - Rules (do not skip): https://oridecon.dev/agents.md