https://b.hatena.ne.jp/entry/s/tooldirectory.ai/ai-graveyard Not every entry is a tombstone.153 AI tools that shut down, got acquired and sunset, or got acquired and kept shipping. Three outcomes, one registry. Hand-reviewed and sourced — so you can tell whi... https://b.hatena.ne.jp/sora0513/20260507#bookmark-4786929160884463362 2026-05-07T07:04:10Z ai tools tool programming 考え方 https://b.hatena.ne.jp/kknsd/20260506#bookmark-4786929160884463362 2026-05-05T23:03:09Z