# refresh_shared_resolver

> **Function** in `deepagents_code`

📖 [View in docs](https://reference.langchain.com/python/deepagents-code/configuration/writer/refresh_shared_resolver)

Make a committed write visible to the shared process resolver.

Only the default path is refreshed. `get_config_resolver` is keyed on
`DEFAULT_CONFIG_PATH`, so reloading it after a write to an override path
would re-read the real user config and the managed policy file - live
filesystem reads inside tests that passed a `tmp_path` - while leaving the
written path's own view stale anyway.

Refreshes every tier, managed policy included. The managed snapshot is
fetched before the resolver takes its generation lock, then installed as
an already-refreshed replacement. An in-app preference toggle therefore
still picks up policy installed since startup without making ordinary
event-loop config reads wait on remote I/O. Leaving the managed provider
alone would let the user tier advance past the policy tier, which is the
split-generation state the whole design exists to prevent.

Failures are logged rather than returned. The write already landed and was
replaced into place; reporting a stale in-process view as a failed write
sends the user to retry or hand-edit a file that is already correct.

Every failure, not just `OSError`: a reload can also raise `ValueError`
from the snapshot and resolved-value invariants, or `RuntimeError` from a
provider that produced no snapshot. Callers such as
`model_config._save_toml_field` invoke this from the success branch of
their own write and return `bool`, so anything escaping here surfaces as a
crash after the bytes are already on disk -- the exact outcome the
paragraph above says must not happen.

## Signature

```python
refresh_shared_resolver(
    config_path: Path,
) -> None
```

## Parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `config_path` | `Path` | Yes | Path the caller just wrote. |

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[View source on GitHub](https://github.com/langchain-ai/deepagents/blob/2069079e09546060f5b52b2cd4f0e3c813e820f3/libs/code/deepagents_code/configuration/writer.py#L159)