Adds a bundled image-generation backend for the Meta Model API
(https://api.meta.ai/v1), which is OpenAI-compatible. Exposes the
muse-image-1.0 model via the standard image_generate tool. This is the
image-gen companion to the already-bundled meta-ai chat provider
(plugins/model-providers/meta-ai, PR #88565).
- plugins/image_gen/meta-ai/ — provider registered as `meta-ai`, matching
the chat provider's id. Reuses the openai SDK pointed at Meta's base URL.
- Auth mirrors the chat provider: MODEL_API_KEY (Meta's documented var),
with META_API_KEY / META_MODEL_API_KEY aliases and a META_BASE_URL
override.
- Text-to-image only for now (capabilities gated); base64 (WebP) and URL
responses both handled and saved under $HERMES_HOME/cache/images/.
- Auto-loads as `kind: backend` and appears in `hermes tools` with no
central list edits, matching the other bundled providers.
- tests/plugins/image_gen/test_meta_ai_provider.py — 27 tests (metadata,
auth-alias resolution, base-url override, model resolution, generate
paths incl. b64 save, aspect mapping, URL caching, error handling).
- docs: image-generation feature page + provider-plugin built-in list.
Matthias Reso
d7e92ab7e3