# passy/awesome-recursion-schemes

Resources for learning and using recursion schemes.

Repository: https://github.com/passy/awesome-recursion-schemes
Canonical: https://ross.abutalabs.com/products/awesome-recursion-schemes
License Family: other
Topics: awesome, recursion-schemes, catamorphisms
Last push: 2024-04-25T20:21:03+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3533, "days_push": 860, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1307, forks 57 (observed 2026-08-28T04:04:19.085386+00:00)

## What it is
A curated awesome-list of resources for learning about and using recursion schemes, including articles, papers, presentations, cheat sheets, and library implementations. It covers concepts like catamorphisms, anamorphisms, and hylomorphisms across multiple languages.

## Use cases
- learn recursion schemes from scratch
- find papers on catamorphisms and anamorphisms
- locate recursion scheme library implementations
- get a cheat sheet for recursion scheme combinators
- find tutorials on functional programming recursion patterns
- discover presentations and podcasts about recursion schemes

## When to choose
- you want a curated starting point for learning recursion schemes
- you need links to papers, articles, and implementations in one place
- you are exploring functional programming recursion patterns across languages

## When to avoid
- you need a runnable library rather than a resource list
- you want actively maintained code or tooling
- you need beginner material that avoids category theory

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: documentation, developer-tools
- domain: tutorials, awesome-lists
- platform: cross-platform
- tags: awesome-list, recursion-schemes, catamorphisms, functional-programming, curated-resources, algorithms

## Member repositories
- passy/awesome-recursion-schemes (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:19.085386+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:50:16.908340+00:00, confidence not recorded.
  - readme: https://github.com/passy/awesome-recursion-schemes (fetched 2026-08-28T04:04:19.085386+00:00, sha 9aa2d17eef37)
- Data as of 2026-08-30T08:39:29.467469+00:00.