> For the complete documentation index, see [llms.txt](https://docs.toolregistry.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.toolregistry.ai/concepts.md).

# Concepts

- [Intent & Context](https://docs.toolregistry.ai/concepts/intent-and-context.md)
- [Runs](https://docs.toolregistry.ai/concepts/runs.md)
- [Integrations](https://docs.toolregistry.ai/concepts/integrations.md)
- [Managed Integrations](https://docs.toolregistry.ai/concepts/integrations/managed-integrations.md)
- [Custom Integrations](https://docs.toolregistry.ai/concepts/integrations/custom-integrations.md)
- [Endpoint Controls](https://docs.toolregistry.ai/concepts/integrations/endpoint-controls.md)
- [Agent Instructions for Integrations](https://docs.toolregistry.ai/concepts/integrations/agent-instructions-for-integrations.md)
- [Integration Selection](https://docs.toolregistry.ai/concepts/integrations/integration-selection.md)
- [Act‑as‑User (userId)](https://docs.toolregistry.ai/concepts/act-as-user-userid.md)
- [Repeat key](https://docs.toolregistry.ai/concepts/repeat-key.md): How to ensure more consistent results and behavior during a run?
- [Pass through](https://docs.toolregistry.ai/concepts/pass-through.md)