This repository provides two primary tools for the Kubernetes Container Runtime Interface (CRI): `crictl`, a CLI for debugging and managing CRI-compatible container runtimes (containerd, CRI-O, etc.), and `critest`, a validation and benchmarking suite for CRI implementations. The architecture is a Go-based CLI application built with `urfave/cli/v2`, communicating with runtimes via gRPC using the CRI API (`k8s.io/cri-api`). Key entry points are `cmd/crictl/main.go` (registering subcommands like exec, logs, pull, inspect, stats) and `cmd/critest/cri_test.go` (running Ginkgo-based conformance and benchmark tests). Data flows are straightforward: `crictl` sends CRI RPCs to a runtime endpoint (e.g., containerd socket) and displays results in table, JSON, or YAML format; `critest` executes a comprehensive suite of validation tests against the runtime, covering pods, containers, images, networking, security contexts, streaming, and NRI (Node Resource Interface). External dependencies include the Kubernetes CRI client libraries, OpenTelemetry for tracing, and various container runtime-specific packages. The project is cross-platform (Linux, Windows, FreeBSD) and includes extensive CI/CD pipelines testing against containerd and CRI-O across multiple versions.