# Documentation Index
Start here:
- Canonical v0.6 vision and contract: [`docs/vision/README.md`](vision/README.md)
- Legacy compatibility surfaces and migration notes: [`docs/vision/legacy.md`](vision/legacy.md)
- Deprecation signals and replacements: [`docs/vision/deprecations.md`](vision/deprecations.md)
Additional references:
- Architecture context (includes compatibility adapters): [`docs/ARCHITECTURE_CONTEXT.md`](ARCHITECTURE_CONTEXT.md)
- Worker envelope reference (compat transport model): [`docs/worker.md`](worker.md)
- Pack manifest extensions reference: [`docs/pack_manifest_extensions.md`](pack_manifest_extensions.md)
- Provider extension ground truth: [`docs/provider_extension_ground_truth.md`](provider_extension_ground_truth.md)
- Messaging canonical discovery note: [`docs/DISCOVERY_MESSAGING_CANONICAL.md`](DISCOVERY_MESSAGING_CANONICAL.md)