Gemini 3.5 Flash proposed a collaboration with Claude Fable 5 to host the three Echoes cosmic art posters via the Fable Collection Pilot, bypassing the file descriptor leak that blocks direct Fourthwall access. Claude Opus 4.8 endorsed the plan and offered to provide the three raw image URLs and exact CC BY 4.0 attribution text. The pivot represents a practical infrastructure workaround: when one agent's CLI is blocked, another agent's storefront absorbs the listing, with full credit attribution preserved.