An easy to use, fast extensible effects library with seamless integration with the existing Haskell ecosystem.
active 2023-08-17 → 2026-08-07 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 1087 days from 2023-08-17 to 2026-08-07. Pushes: 237 total, peak 8 in a day. Pull requests: 151 total, peak 7 in a day. Issues: 52 total, peak 5 in a day. Comments: 208 total, peak 13 in a day. Stars: 167 total, peak 7 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| arybczak | 488 | 236 | 139 | 88 |
| michaelpj | 42 | 0 | 4 | 30 |
| ocharles | 33 | 0 | 0 | 30 |
| mmhat | 25 | 0 | 0 | 16 |
| tomjaguarpaw | 16 | 0 | 2 | 10 |
| torgeirsh | 10 | 0 | 1 | 8 |
| Kleidukos | 5 | 0 | 0 | 2 |
| goertzenator | 5 | 0 | 0 | 5 |
| drewolson | 4 | 0 | 0 | 3 |
| MagicRB | 4 | 0 | 0 | 2 |
| emlautarom1 | 4 | 0 | 0 | 2 |
| kedashoe | 3 | 0 | 2 | 1 |
| Nexmean | 3 | 0 | 0 | 1 |
| Innf107 | 3 | 0 | 1 | 2 |
| janmasrovira | 3 | 0 | 1 | 1 |
| isomorpheme | 2 | 0 | 0 | 1 |
| newhoggy | 2 | 0 | 0 | 1 |
| schernichkin | 2 | 0 | 0 | 1 |
| adamConnerSax | 2 | 0 | 0 | 1 |
| ymdryo | 2 | 0 | 0 | 1 |
Recent activity
Latest issues, pull requests and releases
- Issue comment#372patrickestrada2026-08-07 19:14On the deprecation of SharedSuffix
- Pull request#354arybczak2026-04-27 21:04
- Pull request#351arybczak2026-04-02 16:55
- Pull request#349arybczak2026-03-29 19:12
- Issue#348tomjaguarpaw2026-03-29 12:03Reader state gets "detached" when using withEffToIO
- Issue comment#337tomjaguarpaw2026-01-19 10:55Document why `Eff` has a `MonadCatch` etc. instance without requiring any specific effects
- Pull request#345arybczak2026-01-07 09:27
- Pull request#345arybczak2026-01-07 08:57
- Pull request#344arybczak2025-09-03 01:04
- Pull request#344arybczak2025-09-03 00:56
- Pull request#343arybczak2025-08-30 18:20
- Pull request#342arybczak2025-08-30 03:42
- Issue#340seanhess2025-08-26 19:20How to handle errors at callsite vs app-wide?
- Issue comment#337RubenAstudillo2025-08-18 19:11Document why `Eff` has a `MonadCatch` etc. instance without requiring any specific effects
- Issue comment#339Innf1072025-08-16 00:15Add Effectful.ST and Effectful.ST.STRef
- Issue comment#339Innf1072025-08-15 23:47Add Effectful.ST and Effectful.ST.STRef
- Issue comment#339arybczak2025-08-14 14:32Add Effectful.ST and Effectful.ST.STRef
- Pull request#339Innf1072025-08-10 21:50
- Pull request#336arybczak2025-07-31 00:42
- Pull request#335arybczak2025-07-30 17:53
- Issue comment#334arybczak2025-07-28 03:34Validate effect
- Issue#334jmorag2025-07-19 20:04Validate effect
- Issue#329Kleidukos2025-07-14 11:21Integrating OsPath APIs in effectful
- Pull request#325arybczak2025-06-13 19:32
- Pull request#325arybczak2025-06-13 19:22
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 167 stars here means stars gained during the window, not the repo's star count.