Coding agents get worse as context fills—but where’s your threshold? contextrot is a local CLI that analyzes Claude Code and OpenCode sessions to find degradation patterns, compare models, estimate the cost of degraded steps, and generate actionable reports.
One command, zero network access: `uvx contextrot`
v0.4.0 adds reversal-count analysis to test whether rot depends on what's in your context, not just how full it is.
