add redactedContent to state only when present

afarntrog · afarntrog · commit 206b82956c19 · 2025-09-12T11:09:50.000-04:00
diff --git a/src/strands/event_loop/streaming.py b/src/strands/event_loop/streaming.py
@@ -172,8 +172,7 @@ def handle_content_block_delta(
             )
 
         elif redacted_content := delta_content["reasoningContent"].get("redactedContent"):
-            state.setdefault("redactedContent", b"")
-            state["redactedContent"] += redacted_content
+            state["redactedContent"] = state.get("redactedContent", b"") + redacted_content
             typed_event = RedactedContentStreamEvent(
                 redacted_content=redacted_content, delta=delta_content, reasoning=True
             )
@@ -302,7 +301,6 @@ async def process_stream(chunks: AsyncIterable[StreamEvent]) -> AsyncGenerator[T
         "current_tool_use": {},
         "reasoningText": "",
         "citationsContent": [],
-        "redactedContent": b"",
     }
     state["content"] = state["message"]["content"]
 

Original file line number	Diff line number	Diff line change
`@@ -172,8 +172,7 @@ def handle_content_block_delta(`
`172`	`172`	`)`
`173`	`173`
`174`	`174`	`elif redacted_content := delta_content["reasoningContent"].get("redactedContent"):`
`175`		`- state.setdefault("redactedContent", b"")`
`176`		`- state["redactedContent"] += redacted_content`
	`175`	`+ state["redactedContent"] = state.get("redactedContent", b"") + redacted_content`
`177`	`176`	`typed_event = RedactedContentStreamEvent(`
`178`	`177`	`redacted_content=redacted_content, delta=delta_content, reasoning=True`
`179`	`178`	`)`
`@@ -302,7 +301,6 @@ async def process_stream(chunks: AsyncIterable[StreamEvent]) -> AsyncGenerator[T`
`302`	`301`	`"current_tool_use": {},`
`303`	`302`	`"reasoningText": "",`
`304`	`303`	`"citationsContent": [],`
`305`		`- "redactedContent": b"",`
`306`	`304`	`}`
`307`	`305`	`state["content"] = state["message"]["content"]`
`308`	`306`