Add arazzo-cli (#719)

Co-authored-by: Alexander Karan <47707063+AlexanderKaran@users.noreply.github.com>
Co-authored-by: Alexander Karan <tech@alexanderkaran.com>

Author: strefethen

src/content/tools/arazzo-cli.md

@@ -0,0 +1,49 @@
+---
+name: arazzo-cli
+description: Standalone Arazzo 1.0 workflow executor with runtime engine, debugger, and MCP server for AI agent integration.
+categories:
+  - testing
+  - mcp
+  - data-validators
+link: https://github.com/strefethen/arazzo-cli
+languages:
+  cli: true
+repo: https://github.com/strefethen/arazzo-cli
+oaiSpecs:
+  oas: true
+  arazzo: true
+oasVersions:
+  v2: false
+  v3: true
+  v3_1: true
+  v3_2: false
+---
+
+## Overview
+
+arazzo-cli executes Arazzo 1.0 API workflow specifications — chained, multi-step API test sequences with expressions, control flow, and authentication. It includes a runtime engine, VS Code debugger, and an MCP server that exposes OpenAPI introspection and workflow generation as AI-agent tools.
+
+## Features
+
+- Execute Arazzo workflows against live APIs with chained step outputs
+- Generate CRUD workflows from OpenAPI specs with realistic example values
+- MCP server with 7 tools for AI agent integration (describe, generate, run)
+- VS Code debug adapter with breakpoints and step-through
+- Dry-run mode, parallel execution, JSON output, trace recording
+
+## Usage
+
+\`\`\`bash
+
+# Validate a spec
+
+arazzo-cli validate my-workflow.arazzo.yaml
+
+# Run a workflow
+
+arazzo-cli run my-workflow.arazzo.yaml workflow-id -i key=value
+
+# Generate workflows from OpenAPI
+
+arazzo-cli generate --spec petstore.openapi.yaml
+\`\`\`