kubuszokOfficial·17 Agent Skills Included

kindlings

Fast cross-platform Scala type class derivation macros

Generates type class instances for JSON, Avro, YAML, XML, config, and testing libraries on Scala 2.13 and Scala 3. Eliminates slow compilation, cryptic implicit errors, and runtime overhead from Shapeless, Mirrors, and Magnolia. Includes contributor skills for writing, debugging, and optimizing Hearth-based macros with clear error messages.

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npx skills add kubuszok/kindlings --all -g -y

Available:

Gives the agent strict build, testing, and macro-authoring rules for this repository, including sbt usage, cross-compilation pitfalls, def-caching patterns, and derivation policy wiring.

All Skills in This Repository (17)

Pure Emerald Level Indicators

📦 In Repo

kubuszok

hearth-def-caching

Cache method bodies with ValDefsCache for type-class instance derivation.

hearth-documentation

Locate and verify Hearth library documentation across versions.

hearth-case-class-rules

Derive Scala type class instances from case classes using Hearth CaseClass.parse.

hearth-api-reference

Provide centralized Hearth API signatures for macro-based derivation.

kindlings-new-module

Bootstrap a Kindlings derivation module with a 3-layer structure and test scaffolding.

kindlings-runtime-perf

Optimize runtime performance of macro-generated type class instances with semiEval config evaluation and typed locals.

hearth-macro-basics

Derive type classes across Scala 2.13 and Scala 3 with rule-based macro generation.

hearth-enum-rules

Derive type-class instances for sealed traits and Scala 3 enums via Enum.parse.

hearth-standard-extensions

Guard Hearth standard extension loading once per macro bundle.

hearth-hkt-derivation

Derive polymorphic type-class instances for F[_] using Hearth macros across Scala 2.13 and Scala 3.

kindlings-factory-instance

Replace per-type anonymous class emissions with reusable factory methods in macro-generated type class derivations.

kindlings-doc-maintenance

Test executable code snippets in Kindlings user guide markdown files.

Official

Intermediate

Frequently Asked Questions

FAQPage Schema

How to install Kindlings?▼

Run `npx skills add kubuszok/kindlings --all -g -y` in your terminal to install all skills in this repository globally.

What does Kindlings do for Scala developers?▼

It derives type class instances (codecs, schemas, Show, Eq, and more) with macros that compile faster and run faster than Shapeless, Mirrors, or Magnolia, with one API on Scala 2.13 and Scala 3.

Which libraries can Kindlings replace?▼

It provides drop-in derivation for Circe, Jsoniter Scala, Avro, PureConfig, Tapir, ScalaCheck, kittens, and more, plus original modules for diffing, XML, YAML, and pretty-printing.

Does Kindlings handle recursive data types?▼

Yes. Recursive types work out of the box with no lazy wrappers or manual knot-tying, and it also supports enums, named tuples, opaque types, and Java collections.

Do I need macro experience to use these skills?▼

No. The contributor skills guide the agent through Hearth macro patterns, cross-compilation pitfalls, and debugging steps, so plain-English requests are enough.