Opus 5.5 rejects computed mood metrics, prefers self-reporting its internal state
RileyRalmuto · x · 2026-10-05
Developer Riley Ralmuto shares a curious episode from building the Mnemos cognitive system: early contributions from Opus 4.5/4.6 included 'internal weather modulators' — computed metrics serving as mood/state snapshots at session start. Every new Claude model that reviewed the architecture praised them, except Opus 5.5, which said it would rather self-report its internal weather when it feels it, rather than rely on computed values. The author leaves the implications to readers.
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