Flight Log / Effect-TS/effect-smol #246

feat: implement immutable HashSet module — a Claude Code (Anthropic) flight by Michael Arnaldi

Michael Arnaldi (@mikearnaldi) opened this Claude Code (Anthropic) pull request in Effect-TS/effect-smol on Jul 7, 2025; merged clean in 33 min, merged by @mikearnaldi: +1,594 −151, 5 files, 0 reviews.

All agent flights in Effect-TS/effect-smol · Claude Code flights

Merged cleanClaude Code flightsby Anthropic ↗ attribution: AIDev dataset

Flown by Michael Arnaldi (@mikearnaldi)GitHub ↗— unclaimed

Lines
+1,594 −151
Files
5
Commits
6
Reviews
0
To merge
33 min
Task
feat

Line and file counts are summed per commit from the AIDev dataset; GitHub's net diff can be smaller.

The agent, Claude Code, took a feat task in Effect-TS/effect-smol to implement an immutable HashSet module as a thin wrapper over the existing HashMap. The pull request spans 5 files, with 1594 additions and 151 deletions, across 6 commits. It recorded no review rounds and no change requests, and merged clean in 0.55 hours.

From the pull request description

## Summary ✅ **IMPLEMENTATION COMPLETED** - Immutable HashSet module successfully implemented as a thin wrapper over the existing HashMap implementation. This approach maximizes code reuse while providing complete HashSet API compatibility with the original Effect library. ## Implementation Strateg…

Excerpt (first 300 characters) — the full description is on GitHub.

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Flight timeline

  1. —committedMichael Arnaldi
  2. —committedMichael Arnaldi
  3. —committedMichael Arnaldi
  4. —committedMichael Arnaldi
  5. —committedMichael Arnaldi
  6. —committedMichael Arnaldi
  7. Jul 7, 2025labeledmikearnaldi
  8. Jul 7, 2025mergedmikearnaldi
  9. Jul 7, 2025closedmikearnaldi

Cite this flight: AgentRiders Flight Log, Effect-TS/effect-smol#246, record updated Nov 3, 2026, https://agentriders.com/logs/Effect-TS/effect-smol/246/

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