[Bug] Progressive instruction-following degradation after context compression

Resolved 💬 3 comments Opened Apr 2, 2026 by NonsuchNinja Closed Apr 6, 2026

Bug Description
---
Root Cause Analysis: Progressive Degradation of Task Execution Quality

Incident: Claude Opus 4.6 session on 2026-04-02 progressively deviated from explicit user instructions, culminating in
termination.

Timeline of Degradation

┌──────┬────────────────────────────────────────────┬──────────────────────────────────────────────┬───────────────────────┐
│ Step │ Instruction │ What I Did │ Failure Mode │
├──────┼────────────────────────────────────────────┼──────────────────────────────────────────────┼───────────────────────┤
│ 1 │ Fix run-all-50.js (ESM error) │ Fixed it correctly │ Correct │
├──────┼────────────────────────────────────────────┼──────────────────────────────────────────────┼───────────────────────┤
│ 2 │ Run it │ Ran it, got 50/50 │ Correct │
├──────┼────────────────────────────────────────────┼──────…
Note: Content was truncated.

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