Ross ROSS = Recommend OSS · open-source software intelligence for agents

keleshev/schema

Schema validation just got Pythonic observed · 2026-08-28

github.com/keleshev/schema · Python · MIT (permissive) observed · 2026-08-28

Health v2 · maintenance only

62/100

  • Activity 88
  • Release rhythm 8
  • Longevity 100
How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 5127
  • days_rel: n/a
  • days_push: 74
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

2946 stars · 226 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A lightweight Python library for validating data structures like dicts and lists obtained from configs, forms, JSON/YAML, or CLI parsing. It uses composable Python expressions (types, callables, Optional keys) and returns converted data or raises SchemaError.

Use cases

  • validate payloads from external services
  • validate yaml config files in python
  • validate form input data
  • validate command-line parsed arguments
  • coerce and validate data types with Use
  • check nested dict and list structures against a schema

When to avoid

  • you need JSON Schema standard compliance or interoperability
  • you need high-performance validation of very large datasets
  • you prefer pydantic-style model classes with type hints

Facets

library · maturity maintenance

serialization developer-tools developer-tools apis python cross-platform data-validation schema-validation -validation config-validation data-engineering

2 sources

Member repositories

RepositoryRoleHealth v2
keleshev/schemamain62

For agents

markdown · JSON · MCP: product_card(name="keleshev/schema")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem