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chore: upgrade deepagents to v0.5.0a4 (#1161)

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Replace custom LangSmithBackend with built-in LangSmithSandbox from
deepagents. Update deprecated protocol method names in docs.

Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
Co-authored-by: Sydney Runkle <54324534+sydney-runkle@users.noreply.github.com>
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open-swe[bot] 2026-04-06 10:24:50 -07:00 • committed by GitHub
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6 changed files with 30 additions and 123 deletions
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4
CUSTOMIZATION.md
View file

@ -84,7 +84,7 @@ The factory must return an object implementing `SandboxBackendProtocol` from `de
If none of the built-in providers fit, you can build your own. The agent accepts any backend that implements `SandboxBackendProtocol` from `deepagents`. The protocol requires:
- **File operations**: `ls_info()`, `read()`, `write()`, `edit()`, `glob_info()`, `grep_raw()`
- **File operations**: `ls()`, `read()`, `write()`, `edit()`, `glob()`, `grep()`
- **Shell execution**: `execute(command, timeout=None) -> ExecuteResponse`
- **Identity**: `id` property returning a unique sandbox identifier
@ -111,7 +111,7 @@ class MySandbox(BaseSandbox):
)
```
See `agent/integrations/langsmith.py` (`LangSmithBackend` class) for a full reference implementation.
See `deepagents.backends.LangSmithSandbox` and `agent/integrations/langsmith.py` for a full reference implementation.
---

6
agent/integrations/__init__.py
View file

@ -1,5 +1,7 @@
"""Sandbox provider integrations."""
from agent.integrations.langsmith import LangSmithBackend, LangSmithProvider
from deepagents.backends import LangSmithSandbox
__all__ = ["LangSmithBackend", "LangSmithProvider"]
from agent.integrations.langsmith import LangSmithProvider
__all__ = ["LangSmithProvider", "LangSmithSandbox"]

112
agent/integrations/langsmith.py
View file

@ -1,7 +1,4 @@
"""LangSmith sandbox backend implementation.
Copied from deepagents-cli to avoid requiring deepagents-cli as a dependency.
"""
"""LangSmith sandbox backend integration."""
from __future__ import annotations
@ -11,15 +8,9 @@ import time
from abc import ABC, abstractmethod
from typing import Any
from deepagents.backends.protocol import (
ExecuteResponse,
FileDownloadResponse,
FileUploadResponse,
SandboxBackendProtocol,
WriteResult,
)
from deepagents.backends.sandbox import BaseSandbox
from langsmith.sandbox import Sandbox, SandboxClient, SandboxTemplate
from deepagents.backends import LangSmithSandbox
from deepagents.backends.protocol import SandboxBackendProtocol
from langsmith.sandbox import SandboxClient, SandboxTemplate
def _get_langsmith_api_key() -> str | None:
@ -32,12 +23,7 @@ def _get_langsmith_api_key() -> str | None:
def _get_sandbox_template_config() -> tuple[str | None, str | None]:
"""Get sandbox template configuration from environment.
Returns:
Tuple of (template_name, template_image) from environment variables.
Values are None if not set in environment.
"""
"""Get sandbox template configuration from environment."""
template_name = os.environ.get("DEFAULT_SANDBOX_TEMPLATE_NAME")
template_image = os.environ.get("DEFAULT_SANDBOX_TEMPLATE_IMAGE")
return template_name, template_image
@ -48,10 +34,6 @@ def create_langsmith_sandbox(
) -> SandboxBackendProtocol:
"""Create or connect to a LangSmith sandbox without automatic cleanup.
This function directly uses the LangSmithProvider to create/connect to sandboxes
without the context manager cleanup, allowing sandboxes to persist across
multiple agent invocations.
Args:
sandbox_id: Optional existing sandbox ID to connect to.
If None, creates a new sandbox.
@ -99,7 +81,6 @@ def _update_thread_sandbox_metadata(sandbox_id: str) -> None:
else:
loop.create_task(_update())
except Exception:
# Best-effort: ignore failures (no config context, client unavailable, etc.)
pass
@ -127,87 +108,12 @@ class SandboxProvider(ABC):
raise NotImplementedError
# Default template configuration
DEFAULT_TEMPLATE_NAME = "open-swe"
DEFAULT_TEMPLATE_IMAGE = "python:3"
class LangSmithBackend(BaseSandbox):
"""LangSmith backend implementation conforming to SandboxBackendProtocol.
This implementation inherits all file operation methods from BaseSandbox
and only implements the execute() method using LangSmith's API.
"""
def __init__(self, sandbox: Sandbox) -> None:
self._sandbox = sandbox
self._default_timeout: int = 30 * 5 # 5 minute default
@property
def id(self) -> str:
"""Unique identifier for the sandbox backend."""
return self._sandbox.name
def execute(self, command: str, *, timeout: int | None = None) -> ExecuteResponse:
"""Execute a command in the sandbox and return ExecuteResponse.
Args:
command: Full shell command string to execute.
timeout: Maximum time in seconds to wait for the command to complete.
If None, uses the default timeout of 5 minutes.
Returns:
ExecuteResponse with combined output, exit code, and truncation flag.
"""
effective_timeout = timeout if timeout is not None else self._default_timeout
result = self._sandbox.run(command, timeout=effective_timeout)
# Combine stdout and stderr (matching other backends' approach)
output = result.stdout or ""
if result.stderr:
output += "\n" + result.stderr if output else result.stderr
return ExecuteResponse(
output=output,
exit_code=result.exit_code,
truncated=False,
)
def write(self, file_path: str, content: str) -> WriteResult:
"""Write content using the LangSmith SDK to avoid ARG_MAX.
BaseSandbox.write() sends the full content in a shell command, which
can exceed ARG_MAX for large content. This override uses the SDK's
native write(), which sends content in the HTTP body.
"""
try:
self._sandbox.write(file_path, content.encode("utf-8"))
return WriteResult(path=file_path, files_update=None)
except Exception as e:
return WriteResult(error=f"Failed to write file '{file_path}': {e}")
def download_files(self, paths: list[str]) -> list[FileDownloadResponse]:
"""Download multiple files from the LangSmith sandbox."""
responses: list[FileDownloadResponse] = []
for path in paths:
content = self._sandbox.read(path)
responses.append(FileDownloadResponse(path=path, content=content, error=None))
return responses
def upload_files(self, files: list[tuple[str, bytes]]) -> list[FileUploadResponse]:
"""Upload multiple files to the LangSmith sandbox."""
responses: list[FileUploadResponse] = []
for path, content in files:
self._sandbox.write(path, content)
responses.append(FileUploadResponse(path=path, error=None))
return responses
class LangSmithProvider(SandboxProvider):
"""LangSmith sandbox provider implementation.
Manages LangSmith sandbox lifecycle using the LangSmith SDK.
"""
"""LangSmith sandbox provider implementation."""
def __init__(self, api_key: str | None = None) -> None:
from langsmith import sandbox
@ -237,7 +143,7 @@ class LangSmithProvider(SandboxProvider):
except Exception as e:
msg = f"Failed to connect to existing sandbox '{sandbox_id}': {e}"
raise RuntimeError(msg) from e
return LangSmithBackend(sandbox)
return LangSmithSandbox(sandbox)
resolved_template_name, resolved_image_name = self._resolve_template(
template, template_image
@ -253,7 +159,6 @@ class LangSmithProvider(SandboxProvider):
msg = f"Failed to create sandbox from template '{resolved_template_name}': {e}"
raise RuntimeError(msg) from e
# Verify sandbox is ready by polling
for _ in range(timeout // 2):
try:
result = sandbox.run("echo ready", timeout=5)
@ -268,7 +173,7 @@ class LangSmithProvider(SandboxProvider):
msg = f"LangSmith sandbox failed to start within {timeout} seconds"
raise RuntimeError(msg)
return LangSmithBackend(sandbox)
return LangSmithSandbox(sandbox)
def delete(self, *, sandbox_id: str, **kwargs: Any) -> None:
"""Delete a LangSmith sandbox."""
@ -285,7 +190,6 @@ class LangSmithProvider(SandboxProvider):
return DEFAULT_TEMPLATE_NAME, resolved_image
if isinstance(template, str):
return template, resolved_image
# SandboxTemplate object
if template_image is None and template.image:
resolved_image = template.image
return template.name, resolved_image

2
agent/server.py
View file

@ -90,7 +90,7 @@ async def _clone_or_pull_repo_in_sandbox( # noqa: PLR0915
"""Clone a GitHub repo into the sandbox, or pull if it already exists.
Args:
sandbox_backend: The sandbox backend to execute commands in (LangSmithBackend)
sandbox_backend: The sandbox backend to execute commands in
owner: GitHub repo owner
repo: GitHub repo name
github_token: GitHub access token (from agent auth or env var)

2
pyproject.toml
View file

@ -6,7 +6,7 @@ readme = "README.md"
requires-python = ">=3.11"
license = { text = "MIT" }
dependencies = [
"deepagents>=0.4.12",
"deepagents>=0.5.0a4",
"fastapi>=0.104.0",
"uvicorn>=0.24.0",
"httpx>=0.25.0",

27
uv.lock generated
View file

@ -171,7 +171,7 @@ wheels = [
[[package]]
name = "anthropic"
version = "0.78.0"
version = "0.88.0"
source = { registry = "https://pypi.org/simple" }
dependencies = [
{ name = "anyio" },
@ -183,9 +183,9 @@ dependencies = [
{ name = "sniffio" },
{ name = "typing-extensions" },
]
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[[package]]
@ -629,18 +629,19 @@ wheels = [
[[package]]
name = "deepagents"
version = "0.4.12"
version = "0.5.0a4"
source = { registry = "https://pypi.org/simple" }
dependencies = [
{ name = "langchain" },
{ name = "langchain-anthropic" },
{ name = "langchain-core" },
{ name = "langchain-google-genai" },
{ name = "langsmith" },
{ name = "wcmatch" },
]
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[[package]]
@ -1271,16 +1272,16 @@ wheels = [
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name = "langchain-anthropic"
version = "1.3.4"
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@ -1317,7 +1318,7 @@ wheels = [
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name = "langchain-google-genai"
version = "4.2.0"
version = "4.2.1"
source = { registry = "https://pypi.org/simple" }
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@ -1325,9 +1326,9 @@ dependencies = [
{ name = "langchain-core" },
{ name = "pydantic" },
]
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[[package]]
@ -1812,7 +1813,7 @@ dev = [
[package.metadata]
requires-dist = [
{ name = "cryptography", specifier = ">=41.0.0" },
{ name = "deepagents", specifier = ">=0.4.12" },
{ name = "deepagents", specifier = ">=0.5.0a4" },
{ name = "exa-py", specifier = ">=2.10.1" },
{ name = "fastapi", specifier = ">=0.104.0" },
{ name = "httpx", specifier = ">=0.25.0" },