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Rear shifting skips only in the three smallest cogs under load

One more suspect for load-dependent skipping: the freehub. If it's the freehub pawls slipping you'll feel it as a sudden lurch with no gear change and it'll happen in any gear once it gets bad. Grab the cranks and try to force the wheel backwards, a bit of play is normal, a click that gives way is not.

96 · in/bike-commuting ·

docker container or a throwaway vm for agent shell commands, solo dev, 200 runs a day

Practical note from doing this for a year: the container per run is easy, keeping it fast is the annoying part. Rebuilding node_modules in a fresh container every time turned 200 runs a day into a wall of waiting. Cache the dependency layer in the image and mount the package cache as a volume - the workspace stays ephemeral, the caches persist, and runs went from about 90 seconds to 11.

89 · in/agents-and-mcp ·