feat: add Vercel Sandbox backend

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.
2026-04-29 07:22:33 -07:00
parent 810d98e892
commit 5a1d4f6804
32 changed files with 2241 additions and 44 deletions
@@ -0,0 +1,70 @@
+"""Helpers for reporting Vercel Sandbox authentication state."""
+
+from __future__ import annotations
+
+import os
+from dataclasses import dataclass
+
+
+_TOKEN_TUPLE_VARS = ("VERCEL_TOKEN", "VERCEL_PROJECT_ID", "VERCEL_TEAM_ID")
+
+
+@dataclass(frozen=True)
+class VercelAuthStatus:
+    ok: bool
+    label: str
+    detail_lines: tuple[str, ...]
+
+
+def _present(name: str) -> bool:
+    return bool(os.getenv(name))
+
+
+def describe_vercel_auth() -> VercelAuthStatus:
+    """Return Vercel auth status without exposing secret values."""
+
+    has_oidc = _present("VERCEL_OIDC_TOKEN")
+    token_states = {name: _present(name) for name in _TOKEN_TUPLE_VARS}
+    present_token_vars = tuple(name for name, present in token_states.items() if present)
+    missing_token_vars = tuple(name for name, present in token_states.items() if not present)
+
+    if has_oidc:
+        details = [
+            "mode: OIDC",
+            "active env: VERCEL_OIDC_TOKEN",
+            "note: OIDC tokens are development-only; use access-token auth for deployments and long-running processes",
+        ]
+        if present_token_vars:
+            details.append(f"also present: {', '.join(present_token_vars)}")
+        return VercelAuthStatus(True, "OIDC token via VERCEL_OIDC_TOKEN", tuple(details))
+
+    if not missing_token_vars:
+        return VercelAuthStatus(
+            True,
+            "access token + project/team via VERCEL_TOKEN, VERCEL_PROJECT_ID, VERCEL_TEAM_ID",
+            (
+                "mode: access token",
+                "active env: VERCEL_TOKEN, VERCEL_PROJECT_ID, VERCEL_TEAM_ID",
+            ),
+        )
+
+    if present_token_vars:
+        return VercelAuthStatus(
+            False,
+            f"partial access-token auth (missing {', '.join(missing_token_vars)})",
+            (
+                "mode: incomplete access token",
+                f"present env: {', '.join(present_token_vars)}",
+                f"missing env: {', '.join(missing_token_vars)}",
+                "recommended: set VERCEL_TOKEN, VERCEL_PROJECT_ID, and VERCEL_TEAM_ID together",
+            ),
+        )
+
+    return VercelAuthStatus(
+        False,
+        "not configured",
+        (
+            "recommended: set VERCEL_TOKEN, VERCEL_PROJECT_ID, and VERCEL_TEAM_ID",
+            "development-only alternative: set VERCEL_OIDC_TOKEN",
+        ),
+    )