In favour of


This package has been merged into comonad 4.0

LTS Haskell 10.10:4.0
Stackage Nightly 2018-01-29:4.0
Latest on Hackage:4.0

See all snapshots comonads-fd appears in

BSD-3-Clause licensed by Edward A. Kmett
Maintained by Edward A. Kmett
This version can be pinned in stack with:comonads-fd-4.0@sha256:92ed08f50f64aa9ce57214c9f0539e0244225ef4c934065dff819a751b89eeaf,817

Module documentation for 4.0

There are no documented modules for this package.

Depends on 2 packages(full list with versions):


Build Status

This package provides classes for accessing a standard set of comonad transformers for Haskell.

The actual comonads in question are provided by the comonad-transformers package.

Contact Information

Contributions and bug reports are welcome!

Please feel free to contact me through github or on the #haskell IRC channel on

-Edward Kmett



  • This package has been merged into comonad 4.0


  • Properly annotate the package with upper bounds on its dependencies


  • Marked modules appropriately Trustworthy as needed.


  • Removed upper bounds on dependencies on my other packages
  • Added IRC build-bot notification
  • Automatic tags file support