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text_utils

Text model group utilities for the v2 API.

Exposes the backend's text model name parsing, group member retrieval, and name composition as API endpoints for the frontend group editing UX.

router module-attribute 

router = APIRouter()

_CATEGORY module-attribute 

_CATEGORY = text_generation

GroupNameQuery module-attribute 

GroupNameQuery = Annotated[
    str,
    Query(
        alias="name",
        description="Group name; may contain '/'.",
    ),
]

_COMMON_FIELD_KEYS module-attribute 

_COMMON_FIELD_KEYS = (
    "baseline",
    "description",
    "url",
    "nsfw",
    "tags",
    "style",
    "instruct_format",
)

ExtraPartInfo

Bases: BaseModel

A name segment that didn't match any primary part category.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class ExtraPartInfo(BaseModel):
    """A name segment that didn't match any primary part category."""

    value: str
    position: int
    inferred_type: str

value instance-attribute 

value: str

position instance-attribute 

position: int

inferred_type instance-attribute 

inferred_type: str

ParsedNameResponse

Bases: BaseModel

Structured result of parsing a text model name.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class ParsedNameResponse(BaseModel):
    """Structured result of parsing a text model name."""

    original_name: str
    base_name: str
    size: str | None = None
    variant: str | None = None
    quant: str | None = None
    version: str | None = None
    suggested_group: str
    extras: list[ExtraPartInfo] = []

original_name instance-attribute 

original_name: str

base_name instance-attribute 

base_name: str

size class-attribute instance-attribute 

size: str | None = None

variant class-attribute instance-attribute 

variant: str | None = None

quant class-attribute instance-attribute 

quant: str | None = None

version class-attribute instance-attribute 

version: str | None = None

suggested_group instance-attribute 

suggested_group: str

extras class-attribute instance-attribute 

extras: list[ExtraPartInfo] = []

ParsedNameInfo

Bases: BaseModel

Parsed name components for a single group member.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class ParsedNameInfo(BaseModel):
    """Parsed name components for a single group member."""

    base_name: str
    size: str | None = None
    variant: str | None = None
    quant: str | None = None
    version: str | None = None
    extras: list[ExtraPartInfo] = []

base_name instance-attribute 

base_name: str

size class-attribute instance-attribute 

size: str | None = None

variant class-attribute instance-attribute 

variant: str | None = None

quant class-attribute instance-attribute 

quant: str | None = None

version class-attribute instance-attribute 

version: str | None = None

extras class-attribute instance-attribute 

extras: list[ExtraPartInfo] = []

GroupMemberInfo

Bases: BaseModel

A single member of a text model group with parsed name info.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class GroupMemberInfo(BaseModel):
    """A single member of a text model group with parsed name info."""

    name: str
    parsed: ParsedNameInfo
    parameters: int | None = None
    baseline: str | None = None
    nsfw: bool | None = None
    description: str | None = None
    url: str | None = None
    style: str | None = None
    tags: list[str] | None = None
    display_name: str | None = None
    instruct_format: str | None = None
    is_backend_duplicate: bool = False
    backend_prefix: str | None = None

name instance-attribute 

name: str

parsed instance-attribute 

parsed: ParsedNameInfo

parameters class-attribute instance-attribute 

parameters: int | None = None

baseline class-attribute instance-attribute 

baseline: str | None = None

nsfw class-attribute instance-attribute 

nsfw: bool | None = None

description class-attribute instance-attribute 

description: str | None = None

url class-attribute instance-attribute 

url: str | None = None

style class-attribute instance-attribute 

style: str | None = None

tags class-attribute instance-attribute 

tags: list[str] | None = None

display_name class-attribute instance-attribute 

display_name: str | None = None

instruct_format class-attribute instance-attribute 

instruct_format: str | None = None

is_backend_duplicate class-attribute instance-attribute 

is_backend_duplicate: bool = False

backend_prefix class-attribute instance-attribute 

backend_prefix: str | None = None

NameFormatInfo

Bases: BaseModel

Serializable representation of an inferred name format schema.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class NameFormatInfo(BaseModel):
    """Serializable representation of an inferred name format schema."""

    separator: str
    part_order: list[str]
    author_included: bool
    common_author: str | None = None
    template: str
    extra_parts: list[str] = []

separator instance-attribute 

separator: str

part_order instance-attribute 

part_order: list[str]

author_included instance-attribute 

author_included: bool

common_author class-attribute instance-attribute 

common_author: str | None = None

template instance-attribute 

template: str

extra_parts class-attribute instance-attribute 

extra_parts: list[str] = []

NameExceptionInfo

Bases: BaseModel

A member that does not follow the group naming schema.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class NameExceptionInfo(BaseModel):
    """A member that does not follow the group naming schema."""

    name: str
    reason: str

name instance-attribute 

name: str

reason instance-attribute 

reason: str

GroupMembersResponse

Bases: BaseModel

Full response for a text model group.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class GroupMembersResponse(BaseModel):
    """Full response for a text model group."""

    group_name: str
    members: list[GroupMemberInfo]
    common_fields: dict[str, Any]
    available_sizes: list[str]
    available_variants: list[str | None]
    available_quants: list[str | None]
    available_versions: list[str | None]
    size_usage: dict[str, int]
    variant_usage: dict[str, int]
    quant_usage: dict[str, int]
    name_format: NameFormatInfo
    canonical_count: int
    backend_duplicate_count: int
    name_schema_is_custom: bool = False
    exception_members: list[NameExceptionInfo] = []
    related_family: GroupFamilyResponse | None = None

group_name instance-attribute 

group_name: str

members instance-attribute 

members: list[GroupMemberInfo]

common_fields instance-attribute 

common_fields: dict[str, Any]

available_sizes instance-attribute 

available_sizes: list[str]

available_variants instance-attribute 

available_variants: list[str | None]

available_quants instance-attribute 

available_quants: list[str | None]

available_versions instance-attribute 

available_versions: list[str | None]

size_usage instance-attribute 

size_usage: dict[str, int]

variant_usage instance-attribute 

variant_usage: dict[str, int]

quant_usage instance-attribute 

quant_usage: dict[str, int]

name_format instance-attribute 

name_format: NameFormatInfo

canonical_count instance-attribute 

canonical_count: int

backend_duplicate_count instance-attribute 

backend_duplicate_count: int

name_schema_is_custom class-attribute instance-attribute 

name_schema_is_custom: bool = False

exception_members class-attribute instance-attribute 

exception_members: list[NameExceptionInfo] = []

related_family class-attribute instance-attribute 

related_family: GroupFamilyResponse | None = None

DistinctBaselinesResponse

Bases: BaseModel

Response containing sorted unique baseline values for text models.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class DistinctBaselinesResponse(BaseModel):
    """Response containing sorted unique baseline values for text models."""

    baselines: list[str]

baselines instance-attribute 

baselines: list[str]

ComposeNameRequest

Bases: BaseModel

Request body for composing a model name from parts.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class ComposeNameRequest(BaseModel):
    """Request body for composing a model name from parts."""

    author: str | None = None
    base_name: str
    size: str
    variant: str | None = None
    version: str | None = None
    quant: str | None = None
    separator: str | None = None
    part_order: list[str] | None = None

author class-attribute instance-attribute 

author: str | None = None

base_name instance-attribute 

base_name: str

size instance-attribute 

size: str

variant class-attribute instance-attribute 

variant: str | None = None

version class-attribute instance-attribute 

version: str | None = None

quant class-attribute instance-attribute 

quant: str | None = None

separator class-attribute instance-attribute 

separator: str | None = None

part_order class-attribute instance-attribute 

part_order: list[str] | None = None

ComposeNameResponse

Bases: BaseModel

Response from the name composition endpoint.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class ComposeNameResponse(BaseModel):
    """Response from the name composition endpoint."""

    composed_name: str
    already_exists: bool
    suggested_group: str

composed_name instance-attribute 

composed_name: str

already_exists instance-attribute 

already_exists: bool

suggested_group instance-attribute 

suggested_group: str

CommonFieldsUpdateRequest

Bases: BaseModel

Request body for batch-updating common fields across a group.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class CommonFieldsUpdateRequest(BaseModel):
    """Request body for batch-updating common fields across a group."""

    baseline: str | None = None
    description: str | None = None
    url: str | None = None
    nsfw: bool | None = None
    tags: list[str] | None = None
    style: str | None = None
    instruct_format: str | None = None

baseline class-attribute instance-attribute 

baseline: str | None = None

description class-attribute instance-attribute 

description: str | None = None

url class-attribute instance-attribute 

url: str | None = None

nsfw class-attribute instance-attribute 

nsfw: bool | None = None

tags class-attribute instance-attribute 

tags: list[str] | None = None

style class-attribute instance-attribute 

style: str | None = None

instruct_format class-attribute instance-attribute 

instruct_format: str | None = None

BatchUpdateResponse

Bases: BaseModel

Response from batch group common field update.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class BatchUpdateResponse(BaseModel):
    """Response from batch group common field update."""

    updated_count: int
    batch_id: str
    pending_change_ids: list[int]

updated_count instance-attribute 

updated_count: int

batch_id instance-attribute 

batch_id: str

pending_change_ids instance-attribute 

pending_change_ids: list[int]

GroupNameSchemaResponse

Bases: BaseModel

Response for a group's naming schema.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class GroupNameSchemaResponse(BaseModel):
    """Response for a group's naming schema."""

    group_name: str
    name_schema: TextModelGroupNameSchema
    is_custom: bool

group_name instance-attribute 

group_name: str

name_schema instance-attribute 

name_schema: TextModelGroupNameSchema

is_custom instance-attribute 

is_custom: bool

GroupNameSchemaUpdateRequest

Bases: BaseModel

Partial update for a group's naming schema.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class GroupNameSchemaUpdateRequest(BaseModel):
    """Partial update for a group's naming schema."""

    separator: str | None = None
    part_order: list[str] | None = None
    author_included: bool | None = None
    common_author: str | None = None
    template: str | None = None
    extra_parts: list[str] | None = None

separator class-attribute instance-attribute 

separator: str | None = None

part_order class-attribute instance-attribute 

part_order: list[str] | None = None

author_included class-attribute instance-attribute 

author_included: bool | None = None

common_author class-attribute instance-attribute 

common_author: str | None = None

template class-attribute instance-attribute 

template: str | None = None

extra_parts class-attribute instance-attribute 

extra_parts: list[str] | None = None

NameExceptionRequest

Bases: BaseModel

Set or clear a name schema exception on a model.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class NameExceptionRequest(BaseModel):
    """Set or clear a name schema exception on a model."""

    reason: str | None

reason instance-attribute 

reason: str | None

GroupListResponse

Bases: BaseModel

Response listing all text model group names.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class GroupListResponse(BaseModel):
    """Response listing all text model group names."""

    groups: list[str]

groups instance-attribute 

groups: list[str]

GroupHealthIssue

Bases: BaseModel

A single health problem detected for a group.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class GroupHealthIssue(BaseModel):
    """A single health problem detected for a group."""

    group_name: str
    issue_type: str
    message: str
    severity: str = "warning"

group_name instance-attribute 

group_name: str

issue_type instance-attribute 

issue_type: str

message instance-attribute 

message: str

severity class-attribute instance-attribute 

severity: str = 'warning'

GroupSummaryEntry

Bases: BaseModel

Enriched metadata for a single text model group.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class GroupSummaryEntry(BaseModel):
    """Enriched metadata for a single text model group."""

    group_name: str
    canonical_count: int
    backend_duplicate_count: int
    has_custom_schema: bool = False
    family_name: str | None = None
    alias_canonical: str | None = None
    aliases: list[str] = []
    available_sizes: list[str] = []
    health_issues: list[GroupHealthIssue] = []

group_name instance-attribute 

group_name: str

canonical_count instance-attribute 

canonical_count: int

backend_duplicate_count instance-attribute 

backend_duplicate_count: int

has_custom_schema class-attribute instance-attribute 

has_custom_schema: bool = False

family_name class-attribute instance-attribute 

family_name: str | None = None

alias_canonical class-attribute instance-attribute 

alias_canonical: str | None = None

aliases class-attribute instance-attribute 

aliases: list[str] = []

available_sizes class-attribute instance-attribute 

available_sizes: list[str] = []

health_issues class-attribute instance-attribute 

health_issues: list[GroupHealthIssue] = []

GroupsSummaryResponse

Bases: BaseModel

Enriched overview of all text model groups.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class GroupsSummaryResponse(BaseModel):
    """Enriched overview of all text model groups."""

    groups: list[GroupSummaryEntry]
    total_groups: int
    total_models: int
    groups_with_families: int
    groups_with_aliases: int
    groups_with_issues: int

groups instance-attribute 

groups: list[GroupSummaryEntry]

total_groups instance-attribute 

total_groups: int

total_models instance-attribute 

total_models: int

groups_with_families instance-attribute 

groups_with_families: int

groups_with_aliases instance-attribute 

groups_with_aliases: int

groups_with_issues instance-attribute 

groups_with_issues: int

GroupHealthResponse

Bases: BaseModel

Aggregate health check across all text model groups.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class GroupHealthResponse(BaseModel):
    """Aggregate health check across all text model groups."""

    issues: list[GroupHealthIssue]
    total_groups_checked: int
    groups_with_issues: int
    issue_counts_by_type: dict[str, int]

issues instance-attribute 

issues: list[GroupHealthIssue]

total_groups_checked instance-attribute 

total_groups_checked: int

groups_with_issues instance-attribute 

groups_with_issues: int

issue_counts_by_type instance-attribute 

issue_counts_by_type: dict[str, int]

GroupAliasResponse

Bases: BaseModel

A single group alias entry.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class GroupAliasResponse(BaseModel):
    """A single group alias entry."""

    canonical: str
    aliases: list[str]

canonical instance-attribute 

canonical: str

aliases instance-attribute 

aliases: list[str]

GroupAliasListResponse

Bases: BaseModel

Response listing all group alias entries.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class GroupAliasListResponse(BaseModel):
    """Response listing all group alias entries."""

    entries: list[GroupAliasResponse]

entries instance-attribute 

entries: list[GroupAliasResponse]

SetAliasesRequest

Bases: BaseModel

Request body for setting the full alias list for a canonical group.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class SetAliasesRequest(BaseModel):
    """Request body for setting the full alias list for a canonical group."""

    aliases: list[str]

aliases instance-attribute 

aliases: list[str]

AddAliasRequest

Bases: BaseModel

Request body for adding a single alias to a canonical group.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class AddAliasRequest(BaseModel):
    """Request body for adding a single alias to a canonical group."""

    alias: str

alias instance-attribute 

alias: str

RemoveAliasRequest

Bases: BaseModel

Request body for removing a single alias from a canonical group.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class RemoveAliasRequest(BaseModel):
    """Request body for removing a single alias from a canonical group."""

    alias: str

alias instance-attribute 

alias: str

GroupFamilyResponse

Bases: BaseModel

A single related-group family.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class GroupFamilyResponse(BaseModel):
    """A single related-group family."""

    family_name: str
    members: list[str]

family_name instance-attribute 

family_name: str

members instance-attribute 

members: list[str]

GroupFamilyListResponse

Bases: BaseModel

Response listing all related-group families.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class GroupFamilyListResponse(BaseModel):
    """Response listing all related-group families."""

    families: list[GroupFamilyResponse]

families instance-attribute 

families: list[GroupFamilyResponse]

SetFamilyRequest

Bases: BaseModel

Request body for creating or replacing a family.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class SetFamilyRequest(BaseModel):
    """Request body for creating or replacing a family."""

    members: list[str]

members instance-attribute 

members: list[str]

AddFamilyMemberRequest

Bases: BaseModel

Request body for adding a single group to a family.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class AddFamilyMemberRequest(BaseModel):
    """Request body for adding a single group to a family."""

    group_name: str

group_name instance-attribute 

group_name: str

RemoveFamilyMemberRequest

Bases: BaseModel

Request body for removing a single group from a family.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class RemoveFamilyMemberRequest(BaseModel):
    """Request body for removing a single group from a family."""

    group_name: str

group_name instance-attribute 

group_name: str

DetectFamiliesResponse

Bases: BaseModel

Response from auto-detection of family suggestions.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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class DetectFamiliesResponse(BaseModel):
    """Response from auto-detection of family suggestions."""

    suggestions: list[GroupFamilyResponse]
    total_groups_analyzed: int
    groups_in_families: int
    standalone_groups: int

suggestions instance-attribute 

suggestions: list[GroupFamilyResponse]

total_groups_analyzed instance-attribute 

total_groups_analyzed: int

groups_in_families instance-attribute 

groups_in_families: int

standalone_groups instance-attribute 

standalone_groups: int

_get_all_text_models 

_get_all_text_models(
    manager: ModelReferenceManager,
) -> dict[str, dict[str, Any]]

Load all text generation models as raw dicts.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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def _get_all_text_models(manager: ModelReferenceManager) -> dict[str, dict[str, Any]]:
    """Load all text generation models as raw dicts."""
    raw = manager.get_raw_model_reference_json(_CATEGORY)
    if raw is None:
        return {}
    return {k: v for k, v in raw.items() if isinstance(v, dict)}

_get_group_members 

_get_group_members(
    all_models: dict[str, dict[str, Any]], group_name: str
) -> list[tuple[str, dict[str, Any]]]

Filter models belonging to a specific group.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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def _get_group_members(
    all_models: dict[str, dict[str, Any]],
    group_name: str,
) -> list[tuple[str, dict[str, Any]]]:
    """Filter models belonging to a specific group."""
    members: list[tuple[str, dict[str, Any]]] = []
    for key, data in all_models.items():
        model_group = data.get("text_model_group")
        if model_group == group_name:
            members.append((key, data))
    return members

_compute_common_fields 

_compute_common_fields(
    canonical_members: list[tuple[str, dict[str, Any]]],
) -> dict[str, Any]

Find fields that are identical across all canonical members.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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def _compute_common_fields(
    canonical_members: list[tuple[str, dict[str, Any]]],
) -> dict[str, Any]:
    """Find fields that are identical across all canonical members."""
    if not canonical_members:
        return {}

    common: dict[str, Any] = {}
    for field in _COMMON_FIELD_KEYS:
        values = []
        for _, data in canonical_members:
            values.append(data.get(field))

        if len(values) > 0 and all(v == values[0] for v in values) and values[0] is not None:
            common[field] = values[0]

    return common

_compose_name_from_parts 

_compose_name_from_parts(
    base_name: str,
    size: str,
    variant: str | None = None,
    version: str | None = None,
    quant: str | None = None,
    author: str | None = None,
    separator: str = "-",
    part_order: list[str] | None = None,
) -> str

Compose a model name from structured parts.

When part_order is provided, parts are arranged in that order, using separator. Otherwise uses default: [author/]base{sep}size[{sep}variant][{sep}version][{sep}quant]

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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def _compose_name_from_parts(
    base_name: str,
    size: str,
    variant: str | None = None,
    version: str | None = None,
    quant: str | None = None,
    author: str | None = None,
    separator: str = "-",
    part_order: list[str] | None = None,
) -> str:
    """Compose a model name from structured parts.

    When part_order is provided, parts are arranged in that order, using separator.
    Otherwise uses default: `[author/]base{sep}size[{sep}variant][{sep}version][{sep}quant]`
    """
    available_parts = {
        "base": base_name,
        "size": size,
    }
    if variant:
        available_parts["variant"] = variant
    if version:
        available_parts["version"] = version
    if quant:
        available_parts["quant"] = quant

    if part_order:
        ordered = [available_parts[p] for p in part_order if p in available_parts]
    else:
        ordered = [base_name, size]
        if variant:
            ordered.append(variant)
        if version:
            ordered.append(version)
        if quant:
            ordered.append(quant)

    model_name = separator.join(ordered)

    if author:
        return f"{author}/{model_name}"
    return model_name

parse_name 

parse_name(
    name: Annotated[
        str, Query(description="The model name to parse")
    ],
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
) -> ParsedNameResponse

Parse a text model name into base name, size, variant, and quantization components.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.get(
    "/text_generation/parse_name",
    response_model=ParsedNameResponse,
    summary="Parse a text model name into structured components",
    tags=["text_utils"],
)
def parse_name(
    name: Annotated[str, Query(description="The model name to parse")],
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
) -> ParsedNameResponse:
    """Parse a text model name into base name, size, variant, and quantization components."""
    parsed = parse_text_model_name(name)
    suggested_group = get_base_model_name(name)

    alias_store = manager.group_alias_store
    if alias_store is not None:
        suggested_group = alias_store.resolve(suggested_group)

    return ParsedNameResponse(
        original_name=name,
        base_name=parsed.base_name,
        size=parsed.size,
        variant=parsed.variant,
        quant=parsed.quant,
        version=parsed.version,
        suggested_group=suggested_group,
        extras=[
            ExtraPartInfo(value=e.value, position=e.position, inferred_type=e.inferred_type.value)
            for e in parsed.extras
        ],
    )

get_group 

get_group(
    group_name: GroupNameQuery,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
) -> GroupMembersResponse

Get all models in a text model group with parsed name info and common fields.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.get(
    "/text_generation/group",
    response_model=GroupMembersResponse,
    summary="Get all members of a text model group",
    tags=["text_utils"],
)
def get_group(
    group_name: GroupNameQuery,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
) -> GroupMembersResponse:
    """Get all models in a text model group with parsed name info and common fields."""
    all_models = _get_all_text_models(manager)
    raw_members = _get_group_members(all_models, group_name)

    if not raw_members:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"No models found in group '{group_name}'",
        )

    members: list[GroupMemberInfo] = []
    canonical_members: list[tuple[str, dict[str, Any]]] = []
    sizes: set[str] = set()
    variants: set[str | None] = set()
    quants: set[str | None] = set()
    versions: set[str | None] = set()
    size_usage: dict[str, int] = {}
    variant_usage: dict[str, int] = {}
    quant_usage: dict[str, int] = {}

    for key, data in raw_members:
        is_dup = has_legacy_text_backend_prefix(key)
        backend_prefix: str | None = None
        if is_dup:
            for prefix in ("aphrodite/", "koboldcpp/"):
                if key.startswith(prefix):
                    backend_prefix = prefix.rstrip("/")
                    break

        # Parse the canonical name (strip backend prefix for parsing)
        parse_target = key
        if backend_prefix:
            parse_target = key[len(backend_prefix) + 1 :]

        parsed = parse_text_model_name(parse_target)

        member = GroupMemberInfo(
            name=key,
            parsed=ParsedNameInfo(
                base_name=parsed.base_name,
                size=parsed.size,
                variant=parsed.variant,
                quant=parsed.quant,
                version=parsed.version,
                extras=[
                    ExtraPartInfo(value=e.value, position=e.position, inferred_type=e.inferred_type.value)
                    for e in parsed.extras
                ],
            ),
            parameters=data.get("parameters"),
            baseline=data.get("baseline"),
            nsfw=data.get("nsfw"),
            description=data.get("description"),
            url=data.get("url"),
            style=data.get("style"),
            tags=data.get("tags"),
            display_name=data.get("display_name"),
            instruct_format=data.get("instruct_format"),
            is_backend_duplicate=is_dup,
            backend_prefix=backend_prefix,
        )
        members.append(member)

        if not is_dup:
            canonical_members.append((key, data))
            if parsed.size:
                sizes.add(parsed.size)
                size_usage[parsed.size] = size_usage.get(parsed.size, 0) + 1
            variants.add(parsed.variant)
            if parsed.variant:
                variant_usage[parsed.variant] = variant_usage.get(parsed.variant, 0) + 1
            quants.add(parsed.quant)
            if parsed.quant:
                quant_usage[parsed.quant] = quant_usage.get(parsed.quant, 0) + 1
            versions.add(parsed.version)

    common_fields = _compute_common_fields(canonical_members)

    # Sort sizes numerically where possible
    def _size_sort_key(s: str) -> float:
        try:
            # Handle "8x7B" style MoE sizes
            if "x" in s.upper():
                parts = s.upper().replace("B", "").replace("M", "").replace("K", "").split("X")
                return float(parts[0]) * float(parts[1])
            numeric = s.upper().replace("B", "").replace("M", "").replace("K", "")
            multiplier = 1.0
            if s.upper().endswith("M"):
                multiplier = 0.001
            elif s.upper().endswith("K"):
                multiplier = 0.000001
            return float(numeric) * multiplier
        except (ValueError, IndexError):
            return 0.0

    sorted_sizes = sorted(sizes, key=_size_sort_key)
    sorted_variants = sorted(variants, key=lambda v: v or "")
    sorted_quants = sorted(quants, key=lambda q: q or "")
    sorted_versions = sorted(versions, key=lambda ver: ver or "")

    canonical_count = len(canonical_members)
    dup_count = len(members) - canonical_count

    # Use persisted schema if available, otherwise infer from member names
    name_schema_is_custom = False
    store = manager.group_schema_store
    persisted = store.get(group_name) if store else None
    if persisted:
        name_schema_is_custom = True
        name_format = NameFormatInfo(
            separator=persisted.separator,
            part_order=persisted.part_order,
            author_included=persisted.author_included,
            common_author=persisted.common_author,
            template=persisted.template or "",
            extra_parts=persisted.extra_parts,
        )
    else:
        canonical_names = [k for k, _ in canonical_members]
        schema = infer_name_format(canonical_names)
        name_format = NameFormatInfo(
            separator=schema.separator,
            part_order=schema.part_order,
            author_included=schema.author_included,
            common_author=schema.common_author,
            template=schema.template,
            extra_parts=schema.extra_parts,
        )

    # Collect members with naming schema exceptions
    exception_members: list[NameExceptionInfo] = []
    for key, data in canonical_members:
        reason = data.get("name_schema_exception")
        if reason:
            exception_members.append(NameExceptionInfo(name=key, reason=reason))

    # Look up related family for this group
    related_family: GroupFamilyResponse | None = None
    family_store = manager.group_family_store
    if family_store is not None:
        family = family_store.get_family_for_group(group_name)
        if family is not None:
            related_family = GroupFamilyResponse(
                family_name=family.family_name,
                members=family.members,
            )

    return GroupMembersResponse(
        group_name=group_name,
        members=members,
        common_fields=common_fields,
        available_sizes=sorted_sizes,
        available_variants=sorted_variants,
        available_quants=sorted_quants,
        available_versions=sorted_versions,
        size_usage=size_usage,
        variant_usage=variant_usage,
        quant_usage=quant_usage,
        name_format=name_format,
        canonical_count=canonical_count,
        backend_duplicate_count=dup_count,
        name_schema_is_custom=name_schema_is_custom,
        exception_members=exception_members,
        related_family=related_family,
    )

get_distinct_baselines 

get_distinct_baselines(
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
) -> DistinctBaselinesResponse

Return sorted unique non-empty baselines from text_generation models.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.get(
    "/text_generation/distinct_baselines",
    response_model=DistinctBaselinesResponse,
    summary="Get unique baseline values for text generation models",
    tags=["text_utils"],
)
def get_distinct_baselines(
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
) -> DistinctBaselinesResponse:
    """Return sorted unique non-empty baselines from text_generation models."""
    all_models = _get_all_text_models(manager)
    baselines = {
        baseline.strip()
        for data in all_models.values()
        if isinstance(data.get("baseline"), str)
        for baseline in [str(data.get("baseline"))]
        if baseline.strip()
    }
    return DistinctBaselinesResponse(baselines=sorted(baselines))

compose_name 

compose_name(
    request: ComposeNameRequest,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
) -> ComposeNameResponse

Compose a model name from base name, size, variant, and quant parts.

Checks whether the composed name already exists in the text_generation category.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.post(
    "/text_generation/compose_name",
    response_model=ComposeNameResponse,
    summary="Compose a model name from structured parts and check for collisions",
    tags=["text_utils"],
)
def compose_name(
    request: ComposeNameRequest,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
) -> ComposeNameResponse:
    """Compose a model name from base name, size, variant, and quant parts.

    Checks whether the composed name already exists in the text_generation category.
    """
    composed = _compose_name_from_parts(
        base_name=request.base_name,
        size=request.size,
        variant=request.variant,
        version=request.version,
        quant=request.quant,
        author=request.author,
        separator=request.separator or "-",
        part_order=request.part_order,
    )

    all_models = _get_all_text_models(manager)
    already_exists = composed in all_models

    suggested_group = get_base_model_name(composed)

    return ComposeNameResponse(
        composed_name=composed,
        already_exists=already_exists,
        suggested_group=suggested_group,
    )

update_group_common_fields async 

update_group_common_fields(
    group_name: GroupNameQuery,
    request: CommonFieldsUpdateRequest,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> JSONResponse

Update shared fields across all canonical members of a text model group.

Creates one PendingChangeRecord per canonical member with a shared batch_id.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.put(
    "/text_generation/group/common_fields",
    response_model=BatchUpdateResponse,
    summary="Batch-update common fields across all canonical members of a group",
    tags=["text_utils"],
)
async def update_group_common_fields(
    group_name: GroupNameQuery,
    request: CommonFieldsUpdateRequest,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> JSONResponse:
    """Update shared fields across all canonical members of a text model group.

    Creates one PendingChangeRecord per canonical member with a shared batch_id.
    """
    requestor = await authenticate_queue_requestor(apikey)
    assert_primary_write_enabled(manager)

    all_models = _get_all_text_models(manager)
    raw_members = _get_group_members(all_models, group_name)

    if not raw_members:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"No models found in group '{group_name}'",
        )

    # Only update canonical (non-backend-prefixed) members
    canonical_members = [(k, d) for k, d in raw_members if not has_legacy_text_backend_prefix(k)]

    if not canonical_members:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"No canonical models found in group '{group_name}'",
        )

    # Build the field updates (only non-None fields from the request)
    updates = request.model_dump(exclude_none=True)
    if not updates:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail="No fields to update. Provide at least one field.",
        )

    import uuid

    batch_id = str(uuid.uuid4())
    queue_service = require_pending_queue_service(manager)
    pending_ids: list[int] = []

    for model_name, existing_data in canonical_members:
        # Merge updates into the existing model data
        merged = dict(existing_data)
        merged.update(updates)

        change = queue_service.enqueue_change(
            category=_CATEGORY,
            model_name=model_name,
            operation=AuditOperation.UPDATE,
            payload=merged,
            requestor_id=requestor.user_id,
            requestor_username=requestor.username,
            notes=f"Batch group update for '{group_name}'",
            request_metadata={"route": "update_group_common_fields", "batch_id": batch_id},
        )
        pending_ids.append(change.change_id)

    logger.info(
        f"Queued {len(pending_ids)} pending changes for group '{group_name}' "
        f"(batch_id={batch_id}, requestor={requestor.username})"
    )

    response = BatchUpdateResponse(
        updated_count=len(pending_ids),
        batch_id=batch_id,
        pending_change_ids=pending_ids,
    )
    return JSONResponse(
        status_code=status.HTTP_202_ACCEPTED,
        content=response.model_dump(mode="json"),
    )

list_groups 

list_groups(
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
) -> GroupListResponse

Return sorted distinct text_model_group values across all text models.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.get(
    "/text_generation/groups",
    response_model=GroupListResponse,
    summary="List all text model group names",
    tags=["text_utils"],
)
def list_groups(
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
) -> GroupListResponse:
    """Return sorted distinct ``text_model_group`` values across all text models."""
    all_models = _get_all_text_models(manager)
    groups: set[str] = set()
    for data in all_models.values():
        group = data.get("text_model_group")
        if isinstance(group, str) and group:
            groups.add(group)
    return GroupListResponse(groups=sorted(groups))

_collect_group_health_issues 

_collect_group_health_issues(
    group_name: str,
    members: list[tuple[str, dict[str, Any]]],
) -> list[GroupHealthIssue]

Check a group's canonical members for common problems.

Returns a list of issues found. Called by both the summary and health endpoints to avoid duplicating diagnostic logic.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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def _collect_group_health_issues(
    group_name: str,
    members: list[tuple[str, dict[str, Any]]],
) -> list[GroupHealthIssue]:
    """Check a group's canonical members for common problems.

    Returns a list of issues found. Called by both the summary and health
    endpoints to avoid duplicating diagnostic logic.
    """
    issues: list[GroupHealthIssue] = []

    if len(members) == 1:
        issues.append(
            GroupHealthIssue(
                group_name=group_name,
                issue_type="singleton_group",
                message="Group has only 1 canonical model - may not need a group",
            )
        )

    baselines: set[str] = set()
    nsfw_values: set[bool] = set()
    missing_desc_count = 0
    missing_baseline_count = 0

    for _, data in members:
        bl = data.get("baseline")
        if isinstance(bl, str) and bl:
            baselines.add(bl)
        else:
            missing_baseline_count += 1
        nsfw = data.get("nsfw")
        if isinstance(nsfw, bool):
            nsfw_values.add(nsfw)
        if not data.get("description"):
            missing_desc_count += 1

    if len(baselines) > 1:
        issues.append(
            GroupHealthIssue(
                group_name=group_name,
                issue_type="inconsistent_baseline",
                message=f"Members have different baselines: {', '.join(sorted(baselines))}",
            )
        )

    if len(nsfw_values) > 1:
        issues.append(
            GroupHealthIssue(
                group_name=group_name,
                issue_type="inconsistent_nsfw",
                message="Members have different NSFW flags",
            )
        )

    if missing_baseline_count > 0:
        issues.append(
            GroupHealthIssue(
                group_name=group_name,
                issue_type="missing_baseline",
                message=f"{missing_baseline_count} member(s) missing baseline",
            )
        )

    if missing_desc_count > 0:
        issues.append(
            GroupHealthIssue(
                group_name=group_name,
                issue_type="missing_description",
                message=f"{missing_desc_count} member(s) missing description",
                severity="info",
            )
        )

    return issues

list_groups_summary 

list_groups_summary(
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
) -> GroupsSummaryResponse

Return per-group metadata including member counts, family/alias info, and health flags.

Designed to power a group management overview UI in a single request.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.get(
    "/text_generation/groups/summary",
    response_model=GroupsSummaryResponse,
    summary="Enriched overview of all text model groups",
    tags=["text_utils"],
)
def list_groups_summary(
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
) -> GroupsSummaryResponse:
    """Return per-group metadata including member counts, family/alias info, and health flags.

    Designed to power a group management overview UI in a single request.
    """
    all_models = _get_all_text_models(manager)

    # Bucket models by group
    groups_map: dict[str, list[tuple[str, dict[str, Any]]]] = {}
    for key, data in all_models.items():
        group = data.get("text_model_group")
        if isinstance(group, str) and group:
            groups_map.setdefault(group, []).append((key, data))

    schema_store = manager.group_schema_store
    alias_store = manager.group_alias_store
    family_store = manager.group_family_store

    total_models = 0
    groups_with_families = 0
    groups_with_aliases = 0
    groups_with_issues = 0
    entries: list[GroupSummaryEntry] = []

    for group_name in sorted(groups_map):
        raw_members = groups_map[group_name]
        canonical = [(k, d) for k, d in raw_members if not has_legacy_text_backend_prefix(k)]
        dups = len(raw_members) - len(canonical)
        total_models += len(raw_members)

        # Schema
        has_custom = bool(schema_store and schema_store.get(group_name))

        # Family
        family_name: str | None = None
        if family_store:
            fam = family_store.get_family_for_group(group_name)
            if fam:
                family_name = fam.family_name
                groups_with_families += 1

        # Aliases
        alias_canonical: str | None = None
        aliases: list[str] = []
        if alias_store:
            resolved = alias_store.resolve(group_name)
            if resolved != group_name:
                alias_canonical = resolved
                groups_with_aliases += 1
            else:
                alias_entry = alias_store.get(group_name)
                if alias_entry and alias_entry.aliases:
                    aliases = alias_entry.aliases
                    groups_with_aliases += 1

        # Sizes
        sizes: set[str] = set()
        for key, _ in canonical:
            parse_target = key
            for prefix in ("aphrodite/", "koboldcpp/"):
                if key.startswith(prefix):
                    parse_target = key[len(prefix) :]
                    break
            parsed = parse_text_model_name(parse_target)
            if parsed.size:
                sizes.add(parsed.size)

        # Health
        health_issues = _collect_group_health_issues(group_name, canonical)
        if health_issues:
            groups_with_issues += 1

        entries.append(
            GroupSummaryEntry(
                group_name=group_name,
                canonical_count=len(canonical),
                backend_duplicate_count=dups,
                has_custom_schema=has_custom,
                family_name=family_name,
                alias_canonical=alias_canonical,
                aliases=aliases,
                available_sizes=sorted(sizes),
                health_issues=health_issues,
            )
        )

    return GroupsSummaryResponse(
        groups=entries,
        total_groups=len(entries),
        total_models=total_models,
        groups_with_families=groups_with_families,
        groups_with_aliases=groups_with_aliases,
        groups_with_issues=groups_with_issues,
    )

check_groups_health 

check_groups_health(
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
) -> GroupHealthResponse

Scan all text model groups for common problems.

Returns an aggregate list of issues sorted by severity, useful for admin triage dashboards.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.get(
    "/text_generation/groups/health",
    response_model=GroupHealthResponse,
    summary="Health check across all text model groups",
    tags=["text_utils"],
)
def check_groups_health(
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
) -> GroupHealthResponse:
    """Scan all text model groups for common problems.

    Returns an aggregate list of issues sorted by severity, useful for
    admin triage dashboards.
    """
    all_models = _get_all_text_models(manager)

    groups_map: dict[str, list[tuple[str, dict[str, Any]]]] = {}
    for key, data in all_models.items():
        group = data.get("text_model_group")
        if isinstance(group, str) and group:
            groups_map.setdefault(group, []).append((key, data))

    all_issues: list[GroupHealthIssue] = []
    groups_with_issues_set: set[str] = set()
    issue_counts: dict[str, int] = {}

    for group_name in sorted(groups_map):
        raw_members = groups_map[group_name]
        canonical = [(k, d) for k, d in raw_members if not has_legacy_text_backend_prefix(k)]

        issues = _collect_group_health_issues(group_name, canonical)
        if issues:
            groups_with_issues_set.add(group_name)
            all_issues.extend(issues)
            for issue in issues:
                issue_counts[issue.issue_type] = issue_counts.get(issue.issue_type, 0) + 1

    return GroupHealthResponse(
        issues=all_issues,
        total_groups_checked=len(groups_map),
        groups_with_issues=len(groups_with_issues_set),
        issue_counts_by_type=issue_counts,
    )

_require_group_schema_store 

_require_group_schema_store(
    manager: ModelReferenceManager,
) -> GroupSchemaStore

Return the group schema store or raise 503 if unavailable.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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def _require_group_schema_store(manager: ModelReferenceManager) -> GroupSchemaStore:
    """Return the group schema store or raise 503 if unavailable."""
    store = manager.group_schema_store
    if store is None:
        raise HTTPException(
            status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
            detail="Group schema storage is not available (backend may be in REPLICA mode).",
        )
    return store

get_group_name_schema 

get_group_name_schema(
    group_name: GroupNameQuery,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
) -> GroupNameSchemaResponse

Return the persisted naming schema if one exists, otherwise infer from member names.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.get(
    "/text_generation/group/name_schema",
    response_model=GroupNameSchemaResponse,
    summary="Get the naming schema for a text model group",
    tags=["text_utils"],
)
def get_group_name_schema(
    group_name: GroupNameQuery,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
) -> GroupNameSchemaResponse:
    """Return the persisted naming schema if one exists, otherwise infer from member names."""
    store = manager.group_schema_store
    persisted = store.get(group_name) if store else None
    if persisted:
        return GroupNameSchemaResponse(
            group_name=group_name,
            name_schema=persisted,
            is_custom=True,
        )

    # Fall back to inferred schema
    all_models = _get_all_text_models(manager)
    raw_members = _get_group_members(all_models, group_name)
    canonical_names = [k for k, d in raw_members if not has_legacy_text_backend_prefix(k)]

    if not canonical_names:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"No models found in group '{group_name}'",
        )

    inferred = infer_name_format(canonical_names)
    return GroupNameSchemaResponse(
        group_name=group_name,
        name_schema=TextModelGroupNameSchema(
            separator=inferred.separator,
            part_order=inferred.part_order,
            author_included=inferred.author_included,
            common_author=inferred.common_author,
            template=inferred.template,
        ),
        is_custom=False,
    )

update_group_name_schema async 

update_group_name_schema(
    group_name: GroupNameQuery,
    request: GroupNameSchemaUpdateRequest,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> GroupNameSchemaResponse

Persist a custom naming schema for a text model group.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.put(
    "/text_generation/group/name_schema",
    response_model=GroupNameSchemaResponse,
    summary="Save a custom naming schema for a text model group",
    tags=["text_utils"],
)
async def update_group_name_schema(
    group_name: GroupNameQuery,
    request: GroupNameSchemaUpdateRequest,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> GroupNameSchemaResponse:
    """Persist a custom naming schema for a text model group."""
    requestor = await authenticate_queue_requestor(apikey)
    assert_primary_write_enabled(manager)

    store = _require_group_schema_store(manager)

    # Merge with existing persisted schema (or defaults) for partial updates
    existing = store.get(group_name) or TextModelGroupNameSchema()
    updates = request.model_dump(exclude_none=True)
    merged = existing.model_copy(update=updates)
    store.set(group_name, merged)

    logger.info(f"Updated naming schema for group '{group_name}' (requestor={requestor.username})")

    return GroupNameSchemaResponse(
        group_name=group_name,
        name_schema=merged,
        is_custom=True,
    )

delete_group_name_schema async 

delete_group_name_schema(
    group_name: GroupNameQuery,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> None

Remove the persisted naming schema so the group reverts to inference.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.delete(
    "/text_generation/group/name_schema",
    status_code=status.HTTP_204_NO_CONTENT,
    summary="Delete a custom naming schema (revert to inferred)",
    tags=["text_utils"],
)
async def delete_group_name_schema(
    group_name: GroupNameQuery,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> None:
    """Remove the persisted naming schema so the group reverts to inference."""
    await authenticate_queue_requestor(apikey)
    assert_primary_write_enabled(manager)

    store = _require_group_schema_store(manager)
    deleted = store.delete(group_name)
    if not deleted:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"No custom naming schema found for group '{group_name}'",
        )

set_name_exception async 

set_name_exception(
    model_name: str,
    request: NameExceptionRequest,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> JSONResponse

Set or clear the name_schema_exception field on a text model.

Pass {"reason": "some reason"} to flag the model or {"reason": null} to clear. Changes go through the pending queue.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.put(
    "/text_generation/{model_name:path}/name_exception",
    status_code=status.HTTP_202_ACCEPTED,
    summary="Set or clear the naming schema exception flag on a model",
    tags=["text_utils"],
)
async def set_name_exception(
    model_name: str,
    request: NameExceptionRequest,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> JSONResponse:
    """Set or clear the ``name_schema_exception`` field on a text model.

    Pass ``{"reason": "some reason"}`` to flag the model or ``{"reason": null}`` to clear.
    Changes go through the pending queue.
    """
    requestor = await authenticate_queue_requestor(apikey)
    assert_primary_write_enabled(manager)

    all_models = _get_all_text_models(manager)
    if model_name not in all_models:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Model '{model_name}' not found in text_generation category",
        )

    existing_data = dict(all_models[model_name])
    if request.reason is not None:
        existing_data["name_schema_exception"] = request.reason
    else:
        existing_data.pop("name_schema_exception", None)

    queue_service = require_pending_queue_service(manager)
    change = queue_service.enqueue_change(
        category=_CATEGORY,
        model_name=model_name,
        operation=AuditOperation.UPDATE,
        payload=existing_data,
        requestor_id=requestor.user_id,
        requestor_username=requestor.username,
        notes=f"Name exception {'set' if request.reason else 'cleared'} for '{model_name}'",
        request_metadata={"route": "set_name_exception"},
    )

    return JSONResponse(
        status_code=status.HTTP_202_ACCEPTED,
        content={"pending_change_id": change.change_id},
    )

_require_group_alias_store 

_require_group_alias_store(
    manager: ModelReferenceManager,
) -> GroupAliasStore

Return the group alias store or raise 503 if unavailable.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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def _require_group_alias_store(manager: ModelReferenceManager) -> GroupAliasStore:
    """Return the group alias store or raise 503 if unavailable."""
    store = manager.group_alias_store
    if store is None:
        raise HTTPException(
            status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
            detail="Group alias storage is not available (backend may be in REPLICA mode).",
        )
    return store

list_aliases 

list_aliases(
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
) -> GroupAliasListResponse

Return all configured group alias entries.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.get(
    "/text_generation/aliases",
    response_model=GroupAliasListResponse,
    summary="List all group alias entries",
    tags=["text_utils"],
)
def list_aliases(
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
) -> GroupAliasListResponse:
    """Return all configured group alias entries."""
    store = _require_group_alias_store(manager)
    all_entries = store.list_all()
    return GroupAliasListResponse(
        entries=[
            GroupAliasResponse(canonical=canonical, aliases=entry.aliases)
            for canonical, entry in sorted(all_entries.items())
        ],
    )

get_alias 

get_alias(
    canonical: str,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
) -> GroupAliasResponse

Return the alias entry for a specific canonical group name.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.get(
    "/text_generation/aliases/{canonical}",
    response_model=GroupAliasResponse,
    summary="Get aliases for a canonical group",
    tags=["text_utils"],
)
def get_alias(
    canonical: str,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
) -> GroupAliasResponse:
    """Return the alias entry for a specific canonical group name."""
    store = _require_group_alias_store(manager)
    entry = store.get(canonical)
    if entry is None:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"No alias entry for canonical group '{canonical}'",
        )
    return GroupAliasResponse(canonical=entry.canonical, aliases=entry.aliases)

set_aliases async 

set_aliases(
    canonical: str,
    request: SetAliasesRequest,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> GroupAliasResponse

Replace all aliases for a canonical group name.

Raises 409 if any alias is already claimed by a different canonical group.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.put(
    "/text_generation/aliases/{canonical}",
    response_model=GroupAliasResponse,
    summary="Set the full alias list for a canonical group",
    tags=["text_utils"],
)
async def set_aliases(
    canonical: str,
    request: SetAliasesRequest,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> GroupAliasResponse:
    """Replace all aliases for a canonical group name.

    Raises 409 if any alias is already claimed by a different canonical group.
    """
    await authenticate_queue_requestor(apikey)
    assert_primary_write_enabled(manager)

    store = _require_group_alias_store(manager)
    try:
        store.set_aliases(canonical, request.aliases)
    except ValueError as exc:
        raise HTTPException(
            status_code=status.HTTP_409_CONFLICT,
            detail=str(exc),
        ) from exc

    logger.info(f"Set {len(request.aliases)} aliases for canonical group '{canonical}'")
    return GroupAliasResponse(canonical=canonical, aliases=request.aliases)

add_alias async 

add_alias(
    canonical: str,
    request: AddAliasRequest,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> GroupAliasResponse

Add one alias to a canonical group. Creates the entry if needed.

Raises 409 if the alias is already claimed by a different canonical group.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.post(
    "/text_generation/aliases/{canonical}/add",
    response_model=GroupAliasResponse,
    summary="Add a single alias to a canonical group",
    tags=["text_utils"],
)
async def add_alias(
    canonical: str,
    request: AddAliasRequest,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> GroupAliasResponse:
    """Add one alias to a canonical group. Creates the entry if needed.

    Raises 409 if the alias is already claimed by a different canonical group.
    """
    await authenticate_queue_requestor(apikey)
    assert_primary_write_enabled(manager)

    store = _require_group_alias_store(manager)
    try:
        store.add_alias(canonical, request.alias)
    except ValueError as exc:
        raise HTTPException(
            status_code=status.HTTP_409_CONFLICT,
            detail=str(exc),
        ) from exc

    entry = store.get(canonical)
    assert entry is not None
    return GroupAliasResponse(canonical=canonical, aliases=entry.aliases)

remove_alias async 

remove_alias(
    canonical: str,
    request: RemoveAliasRequest,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> GroupAliasResponse

Remove one alias from a canonical group.

Returns the updated entry. Raises 404 if the alias was not found.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.post(
    "/text_generation/aliases/{canonical}/remove",
    response_model=GroupAliasResponse,
    summary="Remove a single alias from a canonical group",
    tags=["text_utils"],
)
async def remove_alias(
    canonical: str,
    request: RemoveAliasRequest,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> GroupAliasResponse:
    """Remove one alias from a canonical group.

    Returns the updated entry. Raises 404 if the alias was not found.
    """
    await authenticate_queue_requestor(apikey)
    assert_primary_write_enabled(manager)

    store = _require_group_alias_store(manager)
    removed = store.remove_alias(canonical, request.alias)
    if not removed:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Alias '{request.alias}' not found under canonical group '{canonical}'",
        )

    entry = store.get(canonical)
    if entry is None:
        return GroupAliasResponse(canonical=canonical, aliases=[])
    return GroupAliasResponse(canonical=canonical, aliases=entry.aliases)

delete_aliases async 

delete_aliases(
    canonical: str,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> None

Remove the entire alias entry for a canonical group.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.delete(
    "/text_generation/aliases/{canonical}",
    status_code=status.HTTP_204_NO_CONTENT,
    summary="Delete all aliases for a canonical group",
    tags=["text_utils"],
)
async def delete_aliases(
    canonical: str,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> None:
    """Remove the entire alias entry for a canonical group."""
    await authenticate_queue_requestor(apikey)
    assert_primary_write_enabled(manager)

    store = _require_group_alias_store(manager)
    deleted = store.delete(canonical)
    if not deleted:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"No alias entry for canonical group '{canonical}'",
        )

_require_group_family_store 

_require_group_family_store(
    manager: ModelReferenceManager,
) -> GroupFamilyStore

Return the group family store or raise 503 if unavailable.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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def _require_group_family_store(manager: ModelReferenceManager) -> GroupFamilyStore:
    """Return the group family store or raise 503 if unavailable."""
    store = manager.group_family_store
    if store is None:
        raise HTTPException(
            status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
            detail="Group family storage is not available (backend may be in REPLICA mode).",
        )
    return store

list_families 

list_families(
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
) -> GroupFamilyListResponse

Return all configured related-group families.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.get(
    "/text_generation/families",
    response_model=GroupFamilyListResponse,
    summary="List all related-group families",
    tags=["text_utils"],
)
def list_families(
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
) -> GroupFamilyListResponse:
    """Return all configured related-group families."""
    store = _require_group_family_store(manager)
    all_families = store.list_all()
    return GroupFamilyListResponse(
        families=[
            GroupFamilyResponse(family_name=name, members=family.members)
            for name, family in sorted(all_families.items())
        ],
    )

detect_family_suggestions 

detect_family_suggestions(
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
    min_prefix_length: Annotated[
        int, Query(ge=2, le=20)
    ] = 3,
    min_family_size: Annotated[int, Query(ge=2, le=50)] = 2,
) -> DetectFamiliesResponse

Run prefix-based heuristics over current group names to suggest families.

Results are suggestions only - they are not persisted automatically.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.get(
    "/text_generation/families/detect",
    response_model=DetectFamiliesResponse,
    summary="Auto-detect family suggestions from current model groups",
    tags=["text_utils"],
)
def detect_family_suggestions(
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
    min_prefix_length: Annotated[int, Query(ge=2, le=20)] = 3,
    min_family_size: Annotated[int, Query(ge=2, le=50)] = 2,
) -> DetectFamiliesResponse:
    """Run prefix-based heuristics over current group names to suggest families.

    Results are suggestions only - they are not persisted automatically.
    """
    all_models = _get_all_text_models(manager)
    if not all_models:
        return DetectFamiliesResponse(
            suggestions=[],
            total_groups_analyzed=0,
            groups_in_families=0,
            standalone_groups=0,
        )

    alias_store = manager.group_alias_store
    group_names: set[str] = set()
    for model_name in all_models:
        base = get_base_model_name(model_name)
        if alias_store is not None:
            base = alias_store.resolve(base)
        group_names.add(base)

    sorted_names = sorted(group_names)
    suggestions = detect_families(
        sorted_names,
        min_prefix_length=min_prefix_length,
        min_family_size=min_family_size,
    )

    groups_in_families = sum(len(members) for members in suggestions.values())

    return DetectFamiliesResponse(
        suggestions=[
            GroupFamilyResponse(family_name=prefix, members=members) for prefix, members in suggestions.items()
        ],
        total_groups_analyzed=len(sorted_names),
        groups_in_families=groups_in_families,
        standalone_groups=len(sorted_names) - groups_in_families,
    )

get_family 

get_family(
    family_name: str,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
) -> GroupFamilyResponse

Return the family with the given name.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.get(
    "/text_generation/families/{family_name}",
    response_model=GroupFamilyResponse,
    summary="Get a specific related-group family",
    tags=["text_utils"],
)
def get_family(
    family_name: str,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
) -> GroupFamilyResponse:
    """Return the family with the given name."""
    store = _require_group_family_store(manager)
    family = store.get_family(family_name)
    if family is None:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Family '{family_name}' not found",
        )
    return GroupFamilyResponse(family_name=family.family_name, members=family.members)

set_family async 

set_family(
    family_name: str,
    request: SetFamilyRequest,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> GroupFamilyResponse

Create or replace a family with the given members.

Raises 409 if any member already belongs to a different family.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.put(
    "/text_generation/families/{family_name}",
    response_model=GroupFamilyResponse,
    summary="Create or replace a related-group family",
    tags=["text_utils"],
)
async def set_family(
    family_name: str,
    request: SetFamilyRequest,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> GroupFamilyResponse:
    """Create or replace a family with the given members.

    Raises 409 if any member already belongs to a different family.
    """
    await authenticate_queue_requestor(apikey)
    assert_primary_write_enabled(manager)

    store = _require_group_family_store(manager)
    try:
        store.set_family(family_name, request.members)
    except ValueError as exc:
        raise HTTPException(
            status_code=status.HTTP_409_CONFLICT,
            detail=str(exc),
        ) from exc

    logger.info(f"Set family '{family_name}' with {len(request.members)} members")
    return GroupFamilyResponse(family_name=family_name, members=sorted(set(request.members)))

add_family_member async 

add_family_member(
    family_name: str,
    request: AddFamilyMemberRequest,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> GroupFamilyResponse

Add a single group to an existing family.

Raises 404 if the family does not exist, 409 if the group belongs to another family.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.post(
    "/text_generation/families/{family_name}/add",
    response_model=GroupFamilyResponse,
    summary="Add a group to a family",
    tags=["text_utils"],
)
async def add_family_member(
    family_name: str,
    request: AddFamilyMemberRequest,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> GroupFamilyResponse:
    """Add a single group to an existing family.

    Raises 404 if the family does not exist, 409 if the group belongs to another family.
    """
    await authenticate_queue_requestor(apikey)
    assert_primary_write_enabled(manager)

    store = _require_group_family_store(manager)
    try:
        store.add_member(family_name, request.group_name)
    except KeyError as exc:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=str(exc),
        ) from exc
    except ValueError as exc:
        raise HTTPException(
            status_code=status.HTTP_409_CONFLICT,
            detail=str(exc),
        ) from exc

    family = store.get_family(family_name)
    assert family is not None
    return GroupFamilyResponse(family_name=family_name, members=family.members)

remove_family_member async 

remove_family_member(
    family_name: str,
    request: RemoveFamilyMemberRequest,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> GroupFamilyResponse

Remove a single group from a family.

If the family becomes empty, it is deleted entirely. Raises 404 if the group was not found in the family.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.post(
    "/text_generation/families/{family_name}/remove",
    response_model=GroupFamilyResponse,
    summary="Remove a group from a family",
    tags=["text_utils"],
)
async def remove_family_member(
    family_name: str,
    request: RemoveFamilyMemberRequest,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> GroupFamilyResponse:
    """Remove a single group from a family.

    If the family becomes empty, it is deleted entirely.
    Raises 404 if the group was not found in the family.
    """
    await authenticate_queue_requestor(apikey)
    assert_primary_write_enabled(manager)

    store = _require_group_family_store(manager)
    removed = store.remove_member(family_name, request.group_name)
    if not removed:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Group '{request.group_name}' not found in family '{family_name}'",
        )

    family = store.get_family(family_name)
    if family is None:
        return GroupFamilyResponse(family_name=family_name, members=[])
    return GroupFamilyResponse(family_name=family_name, members=family.members)

delete_family async 

delete_family(
    family_name: str,
    manager: Annotated[
        ModelReferenceManager,
        Depends(get_model_reference_manager),
    ],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> None

Delete an entire family, releasing all its members.

Source code in src/horde_model_reference/service/v2/routers/text_utils.py 
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@router.delete(
    "/text_generation/families/{family_name}",
    status_code=status.HTTP_204_NO_CONTENT,
    summary="Delete a related-group family",
    tags=["text_utils"],
)
async def delete_family(
    family_name: str,
    manager: Annotated[ModelReferenceManager, Depends(get_model_reference_manager)],
    apikey: Annotated[str, Depends(header_auth_scheme)],
) -> None:
    """Delete an entire family, releasing all its members."""
    await authenticate_queue_requestor(apikey)
    assert_primary_write_enabled(manager)

    store = _require_group_family_store(manager)
    deleted = store.delete(family_name)
    if not deleted:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Family '{family_name}' not found",
        )