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3tears-media-contracts

Dependency-free media capability contracts shared between 3tears media providers (3tears-models) and media consumers (3tears-agent-tools).

This package contains only pure interface types: typing.Protocol classes and stdlib dataclasses. It has zero dependencies by design, so a provider library can implement (or a consumer can accept) these contracts without inheriting any feature package's dependency closure.

from threetears.media.contracts import GeneratedImage, ImageGenerationBackend

MediaFacets carries the additive carrier facets -- rights status, pixel dimensions, and whether a locator points at the file itself or at the page containing it. The vocabulary grows by addition only, and a consumer that does not recognise a facet ignores it rather than failing, so a new carrier ships without a coordinated release.

from threetears.media.contracts import LOCATOR_KIND_DIRECT_FILE, MediaFacets

The legacy import path threetears.agent.tools.protocols remains a re-export shim for installed 3tears-agent-tools consumers.

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