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Reference covering every React 19 source-file migration pattern — API changes (ReactDOM.render → createRoot, hydrate → hydrateRoot), ref handling, default props, and legacy context updates.

GitHub Copilot for Azure skill that assists with Azure AI services, helping developers integrate and manage Azure AI capabilities from within their IDE.

GitHub Copilot for Azure skill that assists with deploying applications and resources to Azure, streamlining deployment workflows directly from your IDE.

GitHub Copilot for Azure skill that helps manage Azure Storage resources, assisting with blob, file, queue, and table storage operations from within your IDE.

GitHub Copilot for Azure skill that helps troubleshoot and diagnose issues with Azure services, providing diagnostic guidance directly from your IDE.

GitHub Copilot for Azure skill that assists with Microsoft Entra (Azure AD) app registrations, helping manage application identity and authentication configurations from your IDE.

GitHub Copilot for Azure skill that helps prepare Azure environments and resources, assisting with provisioning and setup tasks from within your IDE.

GitHub Copilot for Azure skill that assists with Application Insights instrumentation, helping add telemetry and monitoring to applications from within your IDE.

GitHub Copilot for Azure skill that checks Azure resources for compliance with security and governance policies, providing compliance guidance from within your IDE.

GitHub Copilot for Azure skill that assists with Azure Role-Based Access Control (RBAC), helping manage permissions and role assignments from within your IDE.

GitHub Copilot for Azure skill that validates Azure resource configurations and deployments, helping catch issues before they reach production.

GitHub Copilot for Azure skill that visualizes Azure resource architectures and relationships, helping developers understand their cloud infrastructure from within their IDE.

GitHub Copilot for Azure skill that assists with Azure AI Gateway configuration and management, helping route and manage AI model traffic from within your IDE.

GitHub Copilot for Azure skill that assists with Azure Data Explorer (Kusto) queries and management, helping developers work with Kusto databases from within their IDE.

GitHub Copilot for Azure skill that helps look up and query Azure resources, providing quick access to resource details and configurations from within your IDE.

GitHub Copilot for Azure skill that provides cost analysis and optimization recommendations for Azure resources, helping reduce cloud spending from within your IDE.

Apex code-quality guardrails for Salesforce — bulk-safety rules (no SOQL/DML in loops), sharing-model requirements, CRUD/FLS security, SOQL-injection prevention, modern Apex idioms, and PNB (Positive/Negative/Bulk) test coverage.

Monitor Power Automate flow health through the [FlowStudio MCP](https://mcp.flowstudio.app) cached store — aggregate fail rates, per-run failure detail with remediation hints, maker activity, and Power Apps inventory — at cache speed with no PA API rate-limit pressure. Maps Store tools (`list_store_flows`, `get_store_flow_summary`, `get_store_flow_errors`, etc.) to the "what happened?" questions and Live tools to "fix it now" questions, handles the `Default-<envGuid>.<flowGuid>` id split and ms→s conversion gotchas.

Govern Power Automate tenants through the [FlowStudio MCP](https://mcp.flowstudio.app) cache without Dataverse or the CoE Starter Kit — classify flows by `businessImpact`, set ownership/`supportEmail`, detect orphaned flows owned by deleted Azure AD accounts, audit connectors, manage notification rules, and run compliance reviews. Relies on `update_store_flow` (writes cache-only governance metadata; warns when writing plain strings to the structured `security` field would overwrite it).

Salesforce Flow design and review checklist — first confirm a formula field, validation rule, or roll-up summary can't solve the problem, then pick the right flow type (before-save vs after-save Record-Triggered, Screen, Autolaunched/Invocable, Scheduled, Platform Event). Bulk-safety rules ban DML and Get Records inside loops, require fault connectors on every data-changing element, enforce the automation-density check against legacy Process Builders/Workflow Rules/Apex triggers, and mandate Draft → 1-record → 200+-record → Activate deployment.

Quality standards for Salesforce Lightning Web Components, Aura components, and Visualforce pages — SLDS 2 compliance, WCAG 2.1 AA, data access pattern selection, XSS/CSRF prevention, FLS/CRUD enforcement, and Jest test requirements.

Complete grep scan command library for auditing React codebases before a React 18.3.1 or React 19 upgrade — finds deprecated APIs, unsafe lifecycles, batching risks, test issues, and dependency conflicts.

Reference for diagnosing and fixing React 18 automatic batching regressions in class components — covers setState in async methods, setTimeout, Promises, and native event handlers before reaching for flushSync.

Migration pattern for React legacy context (contextTypes / childContextTypes / getChildContext) to the modern createContext API — a cross-file migration where provider and all consumers must be updated together.

Migration patterns for React string refs (ref="name" + this.refs.name) to React.createRef() in class components — covers single refs, multiple refs, refs in lists, and callback refs.

Dependency compatibility matrix for React 18.3.1 and React 19 migrations — minimum versions of core packages and guidance for resolving peer-dependency conflicts and concurrent-mode incompatibilities.

Before/after migration patterns for the three unsafe class-component lifecycles (componentWillMount, componentWillReceiveProps, componentWillUpdate) targeting React 18.3.1.

Enzyme → React Testing Library migration patterns for React 18 upgrades — shallow, mount, wrapper.find/simulate/prop/state/instance APIs, Enzyme configure/Adapter, plus the shift from implementation to behavior testing.

Part of GitHub's awesome-copilot community collection of custom agents, instructions, skills, hooks, workflows, and plugins for GitHub Copilot. Skills are self-contained folders with instructions and bundled assets, installable via `copilot plugin install`.

Expert skill for writing FreeCAD Python scripts, macros, and automation — Part/Mesh/Sketcher, parametric FeaturePython objects, PySide GUI dialogs, Coin3D scenegraph manipulation, and workbench tool development.