#yaml

The first open-source harness builder for AI coding. Make AI coding deterministic and repeatable.

A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML

A fast Java JSON schema validator that supports draft V4, V6, V7, V2019-09 and V2020-12

This ESLint plugin provides linting rules for YAML.

Comprehensive tooling for working with OpenAPI definitions.

The Open source Resource as Code framework for Apache Kafka. Jikkou helps you implement GitOps for Kafka at scale!

Wazuh - Wazuh Kubernetes

Resumes as code in YAML, brought to you with ❤️ by PPResume.

JavaScript SDK for authorization via Cerbos

CLI proxy that reduces LLM token usage by 60-90%. Declarative YAML filters for Claude Code, Cursor, Copilot, Gemini. rtk alternative in Go.

Fast YAML linter written in Rust (drop in replacement for yamllint - but with additional rules and features)

Fast and well tested serialization library

A collection of Rust crates that implement all the Open Job Description specifications

YAML 1.2 compliant parser in pure Rust with strict compliance, comment and style support, no-std support, and spans for parser events. It accepts many real-world YAML documents from the YAML 1.1 era where the syntax overlaps with YAML 1.2

Validate, Diff, Render - A powerful tool designed to automate the generation of project files using customizable templates.

Declarative YAML around SQL for dbt-native dashboards: easy for agents to write, easy for humans to audit.

:blue_book: dict subclass with keylist/keypath support, built-in I/O operations (base64, csv, html, ini, json, pickle, plist, query-string, toml, xls, xml, yaml), s3 support and many utilities.

publiccode.yml parser library and validator in Go

Simple, extremely lightweight, extensible, configuration management library for Go. Supports JSON, TOML, YAML, env, command line, file, S3 etc. Alternative to viper.

Open-source AI code review engine + unified quality CLI orchestrating 15+ linters. CLI, GitHub Action, and MCP server.

🍸 Encodes and decodes NEON file format.

ESLint plugin that validates data using JSON Schema Validator.

A job scheduler with retries, alerts, saved run history, workflows, and dashboards for single machines and clusters.

Extremely fast, in memory, serialization, reflection, and RPC library for C++. JSON, BEVE, BSON, CBOR, CSV, JSONB, MessagePack, TOML, YAML, EETF

ESLint rules that validate JSON, JSONC, JSON5, YAML, TOML, Markdown frontmatter, JavaScript exports, and Vue custom blocks against their schema.

The context every AI coding agent reads — authors AGENTS.md, CLAUDE.md, GEMINI.md & .cursorrules from your repo's real stack. IANA-registered .faf format.

🌱 + 👀 Provides a composer package with a Twig loader for files with YAML front-matter.

The CLI-native orchestrator for AI agent workflows. Run Claude Code, Codex, Gemini CLI & Kimi Code from declarative YAML. Because the terminal is where real work happens.

Link Modeling Language (LinkML) model

One command for every interface—search, run, and inspect real software across APIs, browsers, desktops, local tools, and MCP.