FIELD NOTE / X
A saved conclusion without its reason is a future bug.
The complete written thought and the evidence behind it. The video edition will follow its public release.
The written argument is here.
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A saved conclusion without its reason is a future bug.
Video caption
A saved conclusion without its reason is a future bug. A once-good route becomes wrong after a constraint moves. Do this because persistence can preserve errors too. #EricFieldNotes
Full written post / accessibility read
Durable memory is not enough if it stores only use provider A. Why was that true? Which workload, cost, policy and date supported it? A replacement agent needs the reason and expiry, not just the latest neat sentence.
Imagine a vendor chosen for a particular data boundary and latency. Months later, the data policy changes. A summary-only memory still says route to that vendor. The agent obeys a fossilized decision because no condition or review date survived.
Store the exact source that supported the choice, the alternative rejected and why, the person with authority to revise it, and the trigger that forces re-evaluation. The working agent receives a small current packet, not the entire historical transcript.
Before an old decision controls a new action, check its source version and expiry. If either is missing, ask the owner or rerun the discriminating test. Better memory means preserving why a decision was valid and when it stops being so.
#EricFieldNotes
Four-beat scene transcript
1. A saved conclusion without its reason is a future bug.
Durable memory is not enough if it stores only use provider A. Why was that true? Which workload, cost, policy and date supported it? A replacement agent needs the reason and expiry, not just the latest neat sentence.
Visual: A new agent can repeat an obsolete choice confidently.
2. The context changed while the memory did not.
Imagine a vendor chosen for a particular data boundary and latency. Months later, the data policy changes. A summary-only memory still says route to that vendor. The agent obeys a fossilized decision because no condition or review date survived.
Visual: A once-good route becomes wrong after a constraint moves.
3. Persist a decision record.
Store the exact source that supported the choice, the alternative rejected and why, the person with authority to revise it, and the trigger that forces re-evaluation. The working agent receives a small current packet, not the entire historical transcript.
Visual: Evidence, rejected option, owner, expiry and next test.
4. Treat memory as a claim with a clock.
Before an old decision controls a new action, check its source version and expiry. If either is missing, ask the owner or rerun the discriminating test. Better memory means preserving why a decision was valid and when it stops being so.
Visual: Do this because persistence can preserve errors too.
Research and claim limits
- OpenAI Agents SDK sessions (S53)
- LangGraph persistence (S54)
- OpenAI Agents SDK: handoffs (S170)
The examples identified as illustrative or simulated are design probes, not reported incidents. Vendor specifications do not establish workload performance.