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fix(sandbox): guard against None runtime.context in sandbox tool helpers (#1853)

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sandbox_from_runtime() and ensure_sandbox_initialized() write
sandbox_id into runtime.context after acquiring a sandbox. When
lazy_init=True and no context is supplied to the graph run,
runtime.context is None (the LangGraph default), causing a TypeError
on the assignment.

Add `if runtime.context is not None` guards at all three write sites.
Reads already had equivalent guards (e.g. `runtime.context.get(...) if
runtime.context else None`); this brings writes into line.
This commit is contained in:
SHIYAO ZHANG 2026-04-05 10:58:38 +08:00 committed by GitHub
parent a283d4a02d
commit 72d4347adb
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1 changed files with 6 additions and 3 deletions
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9
backend/packages/harness/deerflow/sandbox/tools.py
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@ -801,7 +801,8 @@ def sandbox_from_runtime(runtime: ToolRuntime[ContextT, ThreadState] | None = No
if sandbox is None:
raise SandboxNotFoundError(f"Sandbox with ID '{sandbox_id}' not found", sandbox_id=sandbox_id)
runtime.context["sandbox_id"] = sandbox_id # Ensure sandbox_id is in context for downstream use
if runtime.context is not None:
runtime.context["sandbox_id"] = sandbox_id # Ensure sandbox_id is in context for downstream use
return sandbox
@ -836,7 +837,8 @@ def ensure_sandbox_initialized(runtime: ToolRuntime[ContextT, ThreadState] | Non
if sandbox_id is not None:
sandbox = get_sandbox_provider().get(sandbox_id)
if sandbox is not None:
runtime.context["sandbox_id"] = sandbox_id # Ensure sandbox_id is in context for releasing in after_agent
if runtime.context is not None:
runtime.context["sandbox_id"] = sandbox_id # Ensure sandbox_id is in context for releasing in after_agent
return sandbox
# Sandbox was released, fall through to acquire new one
@ -858,7 +860,8 @@ def ensure_sandbox_initialized(runtime: ToolRuntime[ContextT, ThreadState] | Non
if sandbox is None:
raise SandboxNotFoundError("Sandbox not found after acquisition", sandbox_id=sandbox_id)
runtime.context["sandbox_id"] = sandbox_id # Ensure sandbox_id is in context for releasing in after_agent
if runtime.context is not None:
runtime.context["sandbox_id"] = sandbox_id # Ensure sandbox_id is in context for releasing in after_agent
return sandbox