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feat(embeddings): provider-common query/document prefix support #1585

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feat(embeddings): provider-common query/document prefix support #1585

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10 changes: 10 additions & 0 deletions hindsight-api-slim/hindsight_api/config.py
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Original file line number Diff line number Diff line change
Expand Up @@ -195,6 +195,12 @@ def normalize_config_dict(config: dict[str, Any]) -> dict[str, Any]:
ENV_EMBEDDINGS_LOCAL_MODEL = "HINDSIGHT_API_EMBEDDINGS_LOCAL_MODEL"
ENV_EMBEDDINGS_LOCAL_FORCE_CPU = "HINDSIGHT_API_EMBEDDINGS_LOCAL_FORCE_CPU"
ENV_EMBEDDINGS_LOCAL_TRUST_REMOTE_CODE = "HINDSIGHT_API_EMBEDDINGS_LOCAL_TRUST_REMOTE_CODE"
# Provider-common prefix env vars. Prepended to texts before each backend's
# native encode call, distinguishing query-side vs document-side inputs for
# asymmetric retrieval models (e.g., ruri v3, intfloat/multilingual-e5, bge-zh).
# Empty (default) preserves byte-identical pre-existing behavior.
ENV_EMBEDDINGS_QUERY_PREFIX = "HINDSIGHT_API_EMBEDDINGS_QUERY_PREFIX"
ENV_EMBEDDINGS_DOC_PREFIX = "HINDSIGHT_API_EMBEDDINGS_DOC_PREFIX"
ENV_EMBEDDINGS_TEI_URL = "HINDSIGHT_API_EMBEDDINGS_TEI_URL"
ENV_EMBEDDINGS_OPENAI_API_KEY = "HINDSIGHT_API_EMBEDDINGS_OPENAI_API_KEY"
ENV_EMBEDDINGS_OPENAI_MODEL = "HINDSIGHT_API_EMBEDDINGS_OPENAI_MODEL"
Expand Down Expand Up @@ -955,6 +961,8 @@ class HindsightConfig:
embeddings_local_model: str
embeddings_local_force_cpu: bool
embeddings_local_trust_remote_code: bool
embeddings_query_prefix: str
embeddings_doc_prefix: str
embeddings_tei_url: str | None
embeddings_openai_base_url: str | None
embeddings_cohere_api_key: str | None
Expand Down Expand Up @@ -1530,6 +1538,8 @@ def from_env(cls) -> "HindsightConfig":
ENV_EMBEDDINGS_LOCAL_TRUST_REMOTE_CODE, str(DEFAULT_EMBEDDINGS_LOCAL_TRUST_REMOTE_CODE)
).lower()
in ("true", "1"),
embeddings_query_prefix=os.getenv(ENV_EMBEDDINGS_QUERY_PREFIX, ""),
embeddings_doc_prefix=os.getenv(ENV_EMBEDDINGS_DOC_PREFIX, ""),
embeddings_tei_url=os.getenv(ENV_EMBEDDINGS_TEI_URL),
embeddings_openai_base_url=os.getenv(ENV_EMBEDDINGS_OPENAI_BASE_URL) or None,
embeddings_openai_batch_size=_parse_positive_int(
Expand Down
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