IntersectMBO/cuddle

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CDDL DSL and Testing Tools

Is IntersectMBO/cuddle beginner-friendly?

We have not seen enough recent pull requests from outside contributors to IntersectMBO/cuddle to say how often they are merged. 3 beginner-friendly issues are open now.

Stars: 8
Forks: 5
Open beginner issues: 3
Indexed issues: 31
Avg merge: 3d 12h
Merged PRs (30d): 4

Dominant language: Haskell
License: Apache-2.0
Last GitHub push: Nov 4, 2026
Latest indexed: Sep 17, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

How to contribute to IntersectMBO/cuddle

There is no contributing guide, so start from the README and a few recently merged pull requests to see how changes are proposed.
Your contributions will be published under the project's Apache-2.0 license.
Pick one of the 3 open beginner-friendly issues below and comment that you want to work on it before you start.

Beginner friendly Everything

Open All

Issues somebody may already be working on are listed last. List everything by date

Give custom generators access to the constraints
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 43/100

IntersectMBO/cuddle#223 · Opened Nov 6, 2026
Canonical float equality does not conform to RFC8949
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 48/100

IntersectMBO/cuddle#217 · Opened Oct 29, 2026
Nested generic rules get the wrong argument when the outer rule is instantiated more than once
Open
- Is something wrong?
bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

IntersectMBO/cuddle#215 · Opened Oct 9, 2026
Generate extraneous array/map elements when zapped
Open
- Is something wrong?
zapper

Difficulty 3/5 1-2 days Newbie friendliness 35/100

IntersectMBO/cuddle#214 · Opened Aug 19, 2026
Make zapped generators generate keys with invalid types/values
Open
- Is something wrong?
zapper

Difficulty 3/5 1-2 days Newbie friendliness 30/100

IntersectMBO/cuddle#213 · Opened Aug 19, 2026
Add non-literal tag numbers
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 48/100

IntersectMBO/cuddle#198 · Opened May 11, 2026
Ensure that `PairTerm`s and `GroupTerms` are validated/generated correctly
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 55/100

IntersectMBO/cuddle#193 · Opened May 6, 2026
Implement invalid tags
Open
- Is something wrong?
enhancement

Difficulty 3/5 1-2 days Newbie friendliness 48/100

IntersectMBO/cuddle#192 · Opened Apr 28, 2026
genControl .lt crashes when controller literal is 0
Open
- Is something wrong?
bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

IntersectMBO/cuddle#168 · Opened Mar 27, 2026
genEnum crashes on empty group
Open
- Is something wrong?
bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

IntersectMBO/cuddle#167 · Opened Mar 27, 2026
genRange crashes with ClOpen when lower bound equals upper bound
Open
- Is something wrong?
bug

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

IntersectMBO/cuddle#166 · Opened Mar 27, 2026
Remove allow-newer from cabal.project file when possible
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 45/100

IntersectMBO/cuddle#153 · Opened Mar 3, 2026
Make `AntiGen` sometimes generate wrong CBOR terms when negated.
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 45/100

IntersectMBO/cuddle#150 · Opened Feb 27, 2026
Show more information when `.cbor` control fails
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 45/100

IntersectMBO/cuddle#149 · Opened Feb 26, 2026
Haddock does not show slashes in example
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 45/100

IntersectMBO/cuddle#126 · Opened Dec 16, 2025
Make CI build and test jobs mandatory
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 52/100

IntersectMBO/cuddle#106 · Opened Oct 29, 2025
Test against the Ruby CDDL tool
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 25/100

IntersectMBO/cuddle#101 · Opened Oct 10, 2025
Upgrade `fourmolu` to `0.18.0.0`
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 48/100

IntersectMBO/cuddle#98 · Opened Oct 2, 2025
Cuddle can't parse .regexp controls
Open
- Is something wrong?
bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

IntersectMBO/cuddle#74 · 1 comment · Opened Apr 15, 2025
Cuddle does not properly generate `.and` rules
Open
- Is something wrong?
bug

Difficulty 3/5 1-2 days Newbie friendliness 42/100

IntersectMBO/cuddle#72 · 1 comment · Opened Apr 14, 2025
Can't apply control operators to values that the rfc considers valid
Open
- Is something wrong?
bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

IntersectMBO/cuddle#71 · 1 comment · Opened Apr 14, 2025
Cuddle can't generate (or parse rules) that involve literal bigints
Open
- Is something wrong?
bug

Difficulty 3/5 1-2 days Newbie friendliness 42/100

IntersectMBO/cuddle#70 · Opened Apr 14, 2025
Generic arguments mess up the alignment of comments in groups
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 38/100

IntersectMBO/cuddle#63 · Opened Apr 3, 2025
Properly implement `/=` and `//=`
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 45/100

IntersectMBO/cuddle#62 · 1 comment · Opened Apr 1, 2025
Allow maps to include groups
Open
- Is something wrong?
Huddle

Difficulty 4/5 3-5 days Newbie friendliness 35/100

IntersectMBO/cuddle#47 · Opened Jan 15, 2025
Roundtrip test failure
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 45/100

IntersectMBO/cuddle#38 · Opened Sep 11, 2024
Collect rules in definition order for export to CDDL
Open
- Is something wrong?
Huddle

Difficulty 5/5 Over a week Newbie friendliness 30/100

IntersectMBO/cuddle#35 · 2 comments · Opened Jul 30, 2024
Add support for CBOR tag constraints
Open
- Is something wrong?
Difficulty 5/5 Over a week Newbie friendliness 30/100

IntersectMBO/cuddle#30 · Opened Jul 3, 2024
Recursive generic binding
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 35/100

IntersectMBO/cuddle#18 · 1 comment · Opened Feb 14, 2024
Improve error handling
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 25/100

IntersectMBO/cuddle#10 · Opened Jan 17, 2024
Validator does not distinguish bignums (tags 2/3) from plain ints
Possibly taken @Soupstraw claimed this 123 days ago. Open
- Is something wrong?
bug

Difficulty 5/5 Over a week Newbie friendliness 45/100

IntersectMBO/cuddle#207 · Opened Jul 7, 2026

IntersectMBO/cuddle

Is IntersectMBO/cuddle beginner-friendly?

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