mermaid
**UTILITY SKILL** — Mermaid diagrams for inline markdown: flowcharts, sequence, Gantt, class, state, ER. WHEN: "mermaid flowchart", "sequence diagram", "Gantt chart", "state diagram", "ER diagram", "inline markdown diagram". DO NOT USE FOR: Azure-icon architecture diagrams (drawio), WAF/cost charts (python-diagrams).
git clone --depth 1 https://github.com/jonathan-vella/apex /tmp/mermaid && cp -r /tmp/mermaid/.github/skills/mermaid ~/.claude/skills/mermaidSKILL.md
# Mermaid Diagrams Skill for generating Mermaid diagrams embedded in markdown fences. Mermaid is used for inline documentation — flowcharts, sequences, state machines, ER diagrams, Gantt charts. For architecture diagrams with Azure service icons, use the `drawio` skill instead. ## When to Use Mermaid - Inline diagrams inside markdown (`.md`, `.mdx`) - Flowcharts for operational runbooks and process docs - Sequence diagrams for auth flows and API interactions - Gantt charts for project plans and maintenance schedules - State diagrams for lifecycle documentation - ER diagrams for data model overviews - Azure resource relationship diagrams from live queries (via `azure-resources` Mode B) ## Rules **DO:** fenced code blocks with `mermaid` language tag · include theme directives for dark mode · `graph TB` (vertical) or `graph LR` (horizontal) · subgraphs for grouping · descriptive connection labels · validate syntax before committing. **DON'T:** use Mermaid for WAF/cost charts (use `python-diagrams`) · use Mermaid for primary architecture diagrams with Azure icons (use `drawio`) · omit theme directives · embed Azure service icons. ## Steps 1. Pick the diagram type — see [`references/syntax-cheatsheet.md`](references/syntax-cheatsheet.md) 2. Author inside a triple-backtick `mermaid` fence in your markdown 3. Add theming and node styles — see [`references/styling.md`](references/styling.md) 4. Validate — render in VS Code preview or Starlight build 5. Commit — the rendered Mermaid stays inline; no separate artifact ## Reference Index | File | When to Load | | ----------------------------------- | -------------------------------------------------------------- | | `references/syntax-cheatsheet.md` | Authoring any diagram type (flowchart, sequence, Gantt, ER, state) | | `references/styling.md` | Adding theming, node `classDef` styling, or Astro/Starlight integration | ## Scope Exclusions Does NOT: generate Draw.io architecture diagrams · produce Python charts · generate Bicep/Terraform · create ADRs · deploy resources · embed Azure service icons (use `drawio`).
Guidance for instrumenting webapps with Azure Application Insights. Provides telemetry patterns, SDK setup, and configuration references. WHEN: how to instrument app, App Insights SDK, telemetry patterns, what is App Insights, Application Insights guidance, instrumentation examples, APM best practices.
Use for Azure AI: Search, Speech, OpenAI, Document Intelligence. Helps with search, vector/hybrid search, speech-to-text, text-to-speech, transcription, OCR. WHEN: AI Search, query search, vector search, hybrid search, semantic search, speech-to-text, text-to-speech, transcribe, OCR, convert text to speech.
Configure Azure API Management as an AI Gateway for AI models, MCP tools, and agents. WHEN: semantic caching, token limit, content safety, load balancing, AI model governance, MCP rate limiting, jailbreak detection, add Azure OpenAI backend, add AI Foundry model, test AI gateway, LLM policies, configure AI backend, token metrics, AI cost control, convert API to MCP, import OpenAPI to gateway.
ROUTING SKILL — delegates to specialized diagram skills. USE FOR: any diagram request when the caller does not know which tool to use. Routes to drawio, python-diagrams, or mermaid based on diagram type.
Build and deploy GitHub Copilot SDK apps to Azure. WHEN: build copilot app, create copilot app, copilot SDK, @github/copilot-sdk, scaffold copilot project, copilot-powered app, deploy copilot app, host on azure, azure model, BYOM, bring your own model, use my own model, azure openai model, DefaultAzureCredential, self-hosted model, copilot SDK service, chat app with copilot, copilot-sdk-service template, azd init copilot, CopilotClient, createSession, sendAndWait, GitHub Models API.
Troubleshoot and resolve issues with Azure Messaging SDKs for Event Hubs and Service Bus. Covers connection failures, authentication errors, message processing issues, and SDK configuration problems. WHEN: event hub SDK error, service bus SDK issue, messaging connection failure, AMQP error, event processor host issue, message lock lost, send timeout, receiver disconnected, SDK troubleshooting, azure messaging SDK, event hub consumer, service bus queue issue, topic subscription error, enable logging event hub, service bus logging, eventhub python, servicebus java, eventhub javascript, servicebus dotnet, event hub checkpoint, event hub not receiving messages, service bus dead letter.
Authoritative reference for VS Code Copilot customization mechanisms: instructions, prompt files, custom agents, agent skills, MCP servers, hooks, and plugins. Use when deciding which customization type to use, creating new .instructions.md/.prompt.md/.agent.md/SKILL.md/mcp.json files from scratch, or debugging why a customization is not loading. DO NOT USE FOR: routine file edits where the format is already known.
Provides canonical entity counts from count-manifest.json. Use when agents need to reference how many agents, skills, instructions, or validators exist. Prevents hard-coded counts. WHEN: agent count, skill count, how many agents, how many skills, entity inventory, project statistics.