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Simon Willison finds ChatGPT Work with GPT-6 Astra loses visibility into its own tool code after conversation compaction
2026-09-12
Simon Willison had ChatGPT Work with GPT-6 Astra (Max) generate running routes using OSM data via Nominatim and Overpass; the task ran 27 minutes and produced correct output, but after the conversation was compacted, ChatGPT could no longer surface the Python code it had actually executed. Willison called the lack of transparency 'an anti-feature' and argued compaction should preserve and expose pre-compaction text via tool calls.
Significance 2: A single practitioner's test of one workflow, not independently corroborated or benchmark-backed, though it documents a concrete transparency gap in agentic tool-call history after context compaction.
technology Tooling / agents
Sources
- curator Generating running routes with GPT-6 Astra and ChatGPT Work retrieved 2026-09-13