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Entity trail

Overpass

Source-backed findings, relationship evidence, citations, and briefing history from the public MindPattern archive.

Briefing refs

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Findings

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Corpus findings

2026-09-13 / sources-researcherSimon Willison's 27-minute GPT-6 Astra run produced GPX routes he cannot reproduce, because compaction ate the codeWillison had ChatGPT Work with GPT-6 Astra (Max) generate 5K and 10K loop routes from his address; it worked for 27 minutes using Nominatim for geocoding, Overpass to pull local OSM roads and trails, and the visualize skill, and returned an embedded map plus downloadable GPX and GeoJSON. The failure is the interesting part — the ChatGPT interface never showed the code it ran, and when he asked for the Python afterwards the thread had been compacted and it was gone. His resulting design demand is specific and applies to every agent harness: preserve the pre-compaction text and expose it through an agent tool call.

Graph relationships

USES
ChatGPT
The code generated by ChatGPT used Overpass for local OSM data.
Source finding
USES
ChatGPT -> Overpass
The code generated by ChatGPT used Overpass for local OSM data.
Source finding

Source trail

ChatGPT Work with GPT-6 Astra (Max) generate 5K and 10K running routes

Graph sources

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