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feat: add Vercel Sandbox backend

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Adds Vercel Sandbox as a supported Hermes terminal backend alongside
existing providers (Local, Docker, Modal, SSH, Daytona, Singularity).

Uses the Vercel Python SDK to create/manage cloud microVMs, supports
snapshot-based filesystem persistence keyed by task_id, and integrates
with the existing BaseEnvironment shell contract and FileSyncManager
for credential/skill syncing.

Based on #17127 by @scotttrinh, cherry-picked onto current main.
This commit is contained in:
Scott Trinh 2026-04-29 18:20:53 +05:30 • committed by kshitij
parent 810d98e892
commit 5a1d4f6804
32 changed files with 2241 additions and 44 deletions
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22
tools/code_execution_tool.py
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@ -73,7 +73,24 @@ MAX_STDERR_BYTES = 10_000 # 10 KB
def check_sandbox_requirements() -> bool:
"""Code execution sandbox requires a POSIX OS for Unix domain sockets."""
return SANDBOX_AVAILABLE
if not SANDBOX_AVAILABLE:
return False
try:
from tools.terminal_tool import (
_check_vercel_sandbox_requirements,
_get_env_config,
)
config = _get_env_config()
except Exception:
logger.debug("Could not resolve terminal config for execute_code availability", exc_info=True)
return False
if config.get("env_type") == "vercel_sandbox":
return _check_vercel_sandbox_requirements(config)
return True
# ---------------------------------------------------------------------------
@ -481,12 +498,13 @@ def _get_or_create_env(task_id: str):
cwd = overrides.get("cwd") or config["cwd"]
container_config = None
if env_type in ("docker", "singularity", "modal", "daytona"):
if env_type in ("docker", "singularity", "modal", "daytona", "vercel_sandbox"):
container_config = {
"container_cpu": config.get("container_cpu", 1),
"container_memory": config.get("container_memory", 5120),
"container_disk": config.get("container_disk", 51200),
"container_persistent": config.get("container_persistent", True),
"vercel_runtime": config.get("vercel_runtime", ""),
"docker_volumes": config.get("docker_volumes", []),
"docker_run_as_host_user": config.get("docker_run_as_host_user", False),
}