# tinker_cookbook.stores.RunRegistry

## *class* [**tinker_cookbook.stores.RunRegistry**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/stores/registry.py#L50)()

Discovers training runs and provides stores for each.

Supports multiple storage backends. Each run is tracked with its source storage so stores route to the correct backend.

### *property* [**storage_count**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/stores/registry.py#L72)

Number of storage backends registered.

**Returns:** *int*

### *property* [**primary_storage**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/stores/registry.py#L77)

The first (default) storage backend.

**Returns:** *[Storage](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/storage/index.md)*

### [**storage_for**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/stores/registry.py#L81)(*run_id*)

Return the storage backend that owns a run (falls back to primary).

**Parameters:**

- [**run_id**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/stores/registry.py#L81) (*str*)

**Returns:** *[Storage](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/storage/index.md)*

### [**refresh**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/stores/registry.py#L85)()

Re-scan all storages. Clears cached stores.

**Returns:** *list\[[RunInfo](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/runinfo/index.md)\]*

### [**get_runs**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/stores/registry.py#L103)()

Return all discovered runs (lazy — calls `refresh` on first access).

**Returns:** *list\[[RunInfo](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/runinfo/index.md)\]*

### [**get_run**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/stores/registry.py#L110)(*run_id*)

Look up a single run by ID, or `None` if not found.

**Parameters:**

- [**run_id**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/stores/registry.py#L110) (*str*)

**Returns:** *[RunInfo](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/runinfo/index.md) | None*

### [**get_training_store**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/stores/registry.py#L117)(*run_id*)

Get a TrainingRunStore for a specific run.

**Parameters:**

- [**run_id**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/stores/registry.py#L117) (*str*)

**Returns:** *[TrainingRunStore](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/trainingrunstore/index.md)*

### [**get_eval_store**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/stores/registry.py#L126)()

Get the EvalStore if eval data exists (cached after first call).

Returns None if no eval data found. Import is deferred to avoid circular deps with eval/**init**.py. Probes `eval_prefixes` (configurable via constructor) for a `runs.jsonl` file.

**Returns:** *Any | None*