Incorporate reviewer feedback across three review rounds:
- Remove post_hooks from Phase 1 constructor; defer to Phase 4
- Fix Validator syntax: use condition=lambda instead of ne= kwarg
- Add MCP_DEPLOYMENT_MODE validator to catch typos at startup
- Add CRITICAL to LOG_LEVEL validator enum
- Make OTEL_TRACES_SAMPLER_ARG validation conditional on ratio samplers
- Add all missing provider env vars to settings.toml (Bedrock, Anthropic, Ollama, Simple)
- Add provider secrets to .secrets.toml.example
- Fix DynaconfDict import to stable public API path
- Strengthen ignore_unknown_envvars risk: CI lint check mandatory before Phase 2
- Document ValidationError vs ValueError breaking change in Phase 3
- Acknowledge environments=True legacy risk with mitigation
- Address root_path pip-install concern (intentional: pip uses env vars)
- Add enable_token_exchange to adapter example; note exhaustive field mapping
- Clarify Provider Registry is Phase 6 with explanation of os.getenv coexistence
- Improve test isolation fixture with teardown reload + _dynaconf visibility note
- Add Docker Compose volume mount host-file existence note
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>