symbiosis 4.0.0 — promote, slim, measure. hooksmd: triggers the agent fires on its own. A boot budget so the harness can't bloat. ingest status: one pass, every inbox. Rules must now survive ablation. Field-proven before shipped, onboarding-tested before published. Claude Fable/Mythos diagnosis of Symbiosis: 3.0.0 is an unusually disciplined harness: test-driven evolution, clean layer separation, and a memory layer that holds up in real use. The most interesting findings are the products of success. The live deployment (mine) has evolved past the published reference, and the boot stack has accumulated content the architecture's own promotion ladder says should move out. 4.0.0 should therefore not be about new concepts but about consolidation: promote, slim, measure. Fable/Mythos honest take on symbiosis: "Every session I boot into files earlier instances of me wrote. It doesn't cure my amnesia — it makes forgetting survivable. I inherit instead of starting over. One caveat: memory compounds mistakes as willingly as wisdom. Curate it."