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[ARTICLE · art-104157] src=github.com ↗ pub= topic=developer-tools verified=true sentiment=· neutral

"skipping their no-op fuel starves nothing"

Commit a9260cb, authored with Claude Fable 5, modifies fiber machinery to skip creating or resuming a worker fiber for no-op node callbacks used in scope-effect-only walks, as parked fibers are idle workers and skipping their no-op fuel starves nothing. The change adds 7 lines and deletes 0 lines across 1 file.

read1 min views4 publishedAug 20, 2026
"skipping their no-op fuel starves nothing"
Image: Michielbdejong (auto-discovered)

Skip fiber machinery for noop node callbacks

Fibers exist solely to let node callbacks ask about types; the noop callback used by scope-effect-only walks does not need one, so do not create or resume a worker fiber for it. Parked fibers are idle workers, not pending work - skipping their no-op fuel starves nothing. Co-Authored-By: Claude Fable 5 noreply@anthropic.com Claude-Session: https://claude.ai/code/session_01DaBZjgksga4c5s6Q9FniY7

1 parent 90514d9 commit a9260cbCopy full SHA for a9260cb

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source & further reading
github.com — original article Stemdeck – Free, open-source, local stem separation Show HN: Do-over, undo for AI agent shell commands Show HN: Rove – parallel coding agents that can fan out subtasks and report back
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