FIELD NOTE / TIKTOK
The agent that built it is gone.
The complete written thought and the evidence behind it. The video edition will follow its public release.
The written argument is here.
This approved TikTok edition is on the journal now. Its video player and original platform link will appear after each public release is verified.
The agent that built it is gone.
Video caption
The agent that built it is gone. The patched edge has no protected regression fixture. Route the right evidence when the task touches the boundary. #EricFieldNotes
Full written post / accessible read
An agent finishes a workflow and its session ends. Later, another agent gets a bug report. Even with persisted notes, it may not know which earlier design alternatives failed or which edge case the old implementation was protecting.
In this simulated case, the new agent makes one failed import recover automatically. But its cleanup also removes a marker used to prevent duplicate import after restart. The happy-path bug disappears while the crash-and-retry path regresses.
Keep the prior crash fixture and the expected final record outside the agent's writable branch. Before accepting a repair, restart the worker at the same boundary and reconcile imports against the ledger. Require a deliberate removal of the marker to make the test fail.
Have a supervising role watch for import or retry changes and inject that small evidence packet into the worker's task. Still run the protected test independently. Do this because retrieval may miss a fact the worker never thought to ask for, while a giant context dump can bury it.
#EricFieldNotes
Evidence and boundary
On-screen label: SIMULATED REPAIR. Illustrative cases are not measured incidents. Research papers and vendor documents support the stated mechanism only within their studied or documented scope.
- OpenAI Agents SDK sessions (S53)
- LangGraph persistence (S54)
- Liu et al., Lost in the Middle (S80)