typelevel/cats-effect

The pure asynchronous runtime for Scala

Stars: 2.2k
Forks: 576
Open beginner issues: 0
Indexed issues: 198
Avg merge: 2d 11h
Merged PRs (30d): 18

Dominant language: Scala
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue help wanted

Beginner friendly Everything

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3 beginner-friendly issues open

Converge on a single nomenclature for fiber blocking in docs Open

:books: docs good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

typelevel/cats-effect#4597 · 3 reactions · Opened May 5, 2026
Document `cats.effect.tracing.mode` Open

:books: docs

Difficulty 1/5 Under an hour Newbie friendliness 65/100

typelevel/cats-effect#2977 · Opened May 4, 2022
Document the behavior changes to `bracket/guarantee` between CE2 and CE3 Open

:books: docs

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

typelevel/cats-effect#2242 · Opened Aug 17, 2021

A short digest of beginner-friendly GitHub issues.