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fix: strip reasoning item IDs from Responses API input when store=False (#10217)

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With store=False (our default for the Responses API), the API does not
persist response items.  When reasoning items with 'id' fields were
replayed on subsequent turns, the API attempted a server-side lookup
for those IDs and returned 404:

  Item with id 'rs_...' not found. Items are not persisted when store
  is set to false.

The encrypted_content blob is self-contained for reasoning chain
continuity — the id field is unnecessary and triggers the failed lookup.

Fix: strip 'id' from reasoning items in both _chat_messages_to_responses_input
(message conversion) and _preflight_codex_input_items (normalization layer).
The id is still used for local deduplication but never sent to the API.

Reported by @zuogl448 on GPT-5.4.
This commit is contained in:
Teknium
2026-04-15 03:19:43 -07:00
committed by GitHub
parent e69526be79
commit a4e1842f12
2 changed files with 28 additions and 13 deletions
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13
run_agent.py
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@@ -3589,7 +3589,12 @@ class AIAgent:
item_id = ri.get("id")
if item_id and item_id in seen_item_ids:
continue
items.append(ri)
# Strip the "id" field — with store=False the
# Responses API cannot look up items by ID and
# returns 404. The encrypted_content blob is
# self-contained for reasoning chain continuity.
replay_item = {k: v for k, v in ri.items() if k != "id"}
items.append(replay_item)
if item_id:
seen_item_ids.add(item_id)
has_codex_reasoning = True
@@ -3730,8 +3735,10 @@ class AIAgent:
continue
seen_ids.add(item_id)
reasoning_item = {"type": "reasoning", "encrypted_content": encrypted}
if isinstance(item_id, str) and item_id:
reasoning_item["id"] = item_id
# Do NOT include the "id" in the outgoing item — with
# store=False (our default) the API tries to resolve the
# id server-side and returns 404. The id is still used
# above for local deduplication via seen_ids.
summary = item.get("summary")
if isinstance(summary, list):
reasoning_item["summary"] = summary