Reconciles the salvaged Responses-API mandate with the bundled meta-ai
plugin that landed in #88565:
- meta-ai profile api_mode -> codex_responses (prompt caching engages
only on /v1/responses; 0% vs 93-99% measured). Custom endpoints with a
non-api.meta.ai base URL still fall through to chat_completions via
the host-driven mandate design.
- cli-config.yaml.example: point the example at MODEL_API_KEY (Meta's
documented env var) and note the bundled provider covers the default
endpoint
- tests/providers/test_meta_ai_profile.py updated for the new wire
- plugins/model-providers/meta-ai/__init__.py: drop out-of-tree install
instructions from the module docstring (now bundled)
- tests/providers/test_meta_ai_profile.py: port the plugin's test suite
into the repo (registry discovery instead of file-location import)
- website/docs/integrations/providers.md: meta-ai in the first-class
API-key provider list, META_BASE_URL override, contributor-tier
data-training note