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Checkpoints

A checkpoint_dir is managed by a manifest.json. Reading that manifest tells a caller which checkpoints can be resumed from. The tier rules are under Parameter tiers and resuming.

load_checkpoint_manifest 

load_checkpoint_manifest(
    directory: str | Path,
) -> tuple[CheckpointManifestEntry, ...]

Load + fully verify a directory's manifest, returning entries in order.

CheckpointManifestEntry dataclass

A frozen, JSON-safe manifest entry (kd-ckptman-v1).

from_dict classmethod 

from_dict(data: object) -> CheckpointManifestEntry

Strictly reconstruct an entry, rejecting any wire drift.

to_dict 

to_dict() -> dict[str, Any]

Return a JSON-safe dict, iterating the frozen scheme key table.

CheckpointManifestError

Bases: RecordSchemaError

Raised on any kd-ckptman-v1 manifest contract violation.

KIND_FINAL module-attribute 

KIND_FINAL: Final[str] = 'final'

FINAL_STATUS_COMPLETED module-attribute 

FINAL_STATUS_COMPLETED: Final[str] = 'completed'