Build and customize .NET 8+ Blazor UIs with BlazorBlueprint. Use when choosing between BlazorBlueprint.Components and BlazorBlueprint.Primitives, wiring setup and providers, using ToastService/DialogService/localization, selecting icon packs, applying shadcn-ui-style theming, or copying and adapting BlazorBlueprint blueprints.
Configure and switch between BYOK (Bring Your Own Key) LLM providers for both GitHub Copilot CLI and VS Code Chat. Use when setting up OpenAI, Azure OpenAI, Anthropic, Ollama, Moonshot, OpenCode Go, or other OpenAI-compatible endpoints; creating or switching reusable provider profiles for CLI; configuring chatLanguageModels.json for VS Code; calculating max prompt or output token overrides; configuring wire API and reasoning effort; or troubleshooting COPILOT_PROVIDER_BASE_URL, COPILOT_PROVIDER_TYPE, COPILOT_PROVIDER_API_KEY, COPILOT_MODEL, COPILOT_PROVIDER_WIRE_API, COPILOT_PROVIDER_MAX_PROMPT_TOKENS, COPILOT_PROVIDER_MAX_OUTPUT_TOKENS, COPILOT_OFFLINE, and VS Code language model settings.
Spawn a new isolated Copilot CLI sub-session from a main Copilot CLI or VS Code session. Use when you need to programmatically create, resume, or chain Copilot CLI sessions with explicit control over session ID, custom agent, model, BYOK provider profile, permissions, and working directory. Triggers: "invoke copilot", "spawn copilot", "copilot sub-session", "programmatic copilot cli", "copilot cli session id", "resume copilot session", "chain copilot sessions", "copilot byok profile script", "subagent copilot cli", "task copilot cli".
Apply the Postrboard design language — a refined, airy, code-native aesthetic used across postrboard.com and burkeholland.github.io — when designing or building any website, landing page, UI component, or web app. Use this skill whenever the user asks to design, style, or build a site and wants it to feel polished, modern, and developer-native. Trigger on phrases like "build me a site", "design a landing page", "make it look like postrboard", "use my design language", "create a new site", etc.
Manage GitHub Copilot CLI MCP server configuration, including ~/.copilot/mcp-config.json, COPILOT_HOME or --config-dir, project-level .mcp.json/.github/mcp.json/.vscode/mcp.json, /mcp commands, --additional-mcp-config, and VS Code mcp.json migration.
Create, update, maintain, and evolve GitHub Copilot agent plugins for CLI, VS Code, or both. Use when scaffolding or refining plugin.json, reconciling manifest drift, choosing runtime-specific component fields, wiring plugin components, or governing shared versions across multi-runtime plugins.
Create and draft markdown-based issue documents (bug reports, feature plans, RFCs, ADRs, tasks, retrospectives) in the top-level `.issues/` folder. Use this skill whenever you need to document software issues, feature proposals, architectural decisions, work items, or post-mortems. Includes templates, metadata indexing, and structured YAML frontmatter. Different from issue tracker systems — this is for archival, decision-making, and knowledge base documents.
Slash command to evaluate whether an issue or pull request is still relevant, actionable, and worth keeping open