Sonobuoy is a diagnostic tool that makes it easier to understand the state of a Kubernetes cluster by running a set of Kubernetes conformance tests and other plugins in an accessible and non-destructive manner.

🧪CNCF K8s Conformance Working Group

MDA Open Spec — a Markdown superset for agent-facing documents. One .mda source compiles to drop-in SKILL.md, AGENTS.md, MCP-SERVER.md, and CLAUDE.md. JSON Schema validated, with typed dependency graph, footnote relationships, and Sigstore-anchored signatures. For agentskills.io and AAIF runtimes.

A CLI to run all kinds of code quality measurements to align your team with company goals

Kubernetes AI Conformance

Inspect Codex / Claude logs, verify metering samples and re-count supported billing exports. Free local tools; bounded $10 diagnosis and $20 QA.

📦 Structure, maintain, and operate JavaScript codebases that scale from one developer to hundreds.

A DynamoDB emulator in Rust, backed by SQLite. Starts in milliseconds as a single static binary, and is verified against real AWS by a public conformance suite. Runs as an HTTP server, an MCP server for coding agents, an embeddable library, or in the browser via WebAssembly.

Conformance test suite for Connect, gRPC, and gRPC-Web implementations.

A lightweight Experience API Learning Record Store (LRS)

This repository provides the source code for MPEG-DASH/DASH-IF Conformance Software/Validator. It has been extended according to further standards, such as CMAF, DVB-DASH, HbbTV, and CTA WAVE.

A sample application for learning how to service mesh and for validating SMI conformance

Wayland Conformance Test Suite

The new home of JTidy updated to work with HTML5

Local-first WebAuthn conformance harbor - run passkey ceremonies against a matrix of relying-party scenarios, inspect challenge bytes and attestation formats, and render deterministic JSON reports. Go core, std-only, with a TypeScript browser lab.

Certification Test Tools Resources. For security and privacy related issues email tools@fidoalliance.org

Test files for the OpenJPEG libraries and utilities

Protocol-layer harness for DeepSeek: Python witness stack — posterior verification that keeps the protocol honest. dsh doctor --node probes included.

The Interoperability Test Bed is a solution supported by the European Commission’s DIGIT for the conformance testing of IT systems.

A repository running the Protobuf conformance tests against various libraries