GitHub

Manage Spec Kit extensions via `specify extension`. USE FOR: listing installed extensions as text or JSON, installing/removing/updating extensions, searching the extension catalog, showing extension info, enabling/disabling extensions, setting resolution priority, or managing extension catalogs. DO NOT USE FOR: artifact composition stacks (use speckit-artifact), presets (use speckit-preset), bundles (use speckit-bundle), or workflows (use speckit-workflow).

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Manage and run Spec Kit automation workflows via `specify workflow`. USE FOR: running a workflow by ID or local YAML, resuming a paused/failed run, checking run status, listing/installing/removing workflows, searching the workflow catalog, showing a workflow step graph. DO NOT USE FOR: extensions (use speckit-extension), presets (use speckit-preset), or bundles (use speckit-bundle).

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Detect and install the Spec Kit `specify` CLI that every other speckit skill depends on. USE FOR: checking whether `specify` is installed/on PATH, installing it when missing, fixing "command not found: specify", confirming the CLI is new enough (>= 0.11). DO NOT USE FOR: upgrading an already-installed CLI to a newer release (use speckit-self) or verifying project tools (use speckit-check).

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Scaffold a Spec Kit (spec-driven development) project for GitHub Copilot by running `specify init --integration copilot --integration-options="--skills"`. USE FOR: starting a new spec-kit project, bootstrapping spec-driven development in an existing repo, installing spec-kit templates/scripts/commands for Copilot. DO NOT USE FOR: managing extensions/presets/bundles of an already-initialized project (use the speckit-extension / speckit-preset / speckit-bundle skills instead).

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Check for and apply Spec Kit CLI updates via `specify self`. USE FOR: checking whether a newer specify-cli release is available, previewing an upgrade with --dry-run, upgrading the CLI in place (optionally to a pinned tag). DO NOT USE FOR: checking project tools/integrations (use speckit-check) or managing extensions/presets/integrations/workflows.

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Manage Spec Kit presets via `specify preset`. USE FOR: listing installed presets as text or JSON, installing/removing presets, searching the preset catalog, showing preset info, resolving which template a preset name maps to, enabling/disabling presets, setting resolution priority, or managing preset catalogs. DO NOT USE FOR: full artifact composition stacks (use speckit-artifact), extensions (use speckit-extension), bundles (use speckit-bundle), or workflows (use speckit-workflow).

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Manage Spec Kit workflow step types via `specify workflow step`. USE FOR: listing built-in and custom workflow step types, installing/removing a custom step type from a catalog, searching/showing step-type info, managing step-type catalog sources. DO NOT USE FOR: running or installing whole workflows (use speckit-workflow), or bundles (use speckit-bundle).

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Check the local environment for Spec Kit by running `specify check` (and `specify version`). USE FOR: verifying required tools are installed, diagnosing a broken spec-kit setup, reporting CLI version/feature capabilities. DO NOT USE FOR: installing or upgrading the CLI itself (use the speckit-self skill).

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Scan repository dependencies for known vulnerabilities using the GitHub MCP Server's Dependabot toolset and the GitHub Advisory Database. Use when asked to check dependency security, audit lockfiles, or verify packages before merging.

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Scan files, content, or recent changes for secrets such as API keys, passwords, tokens, and credentials using the GitHub MCP Server's run_secret_scanning tool.

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Publishes a Replica prototype through its existing workflow and Hub Build. Use for prototype canvas publishing requests that include verified target JSON and a publishing mode.

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Write meaningful Replica tests. Use when adding regression coverage, testing new behavior, or changing existing automated tests.

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Create and wire Replica prototype controls. Use when asked to add or change dropdowns, sliders, input fields, toggles or action buttons that configure variants, scenarios, visible UI, app state or data sources, even without canvas terminology. Covers declarations, typed bindings, defaults, conditions, resets and actions. Product UI form fields and filters alone belong to create-prototype.

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Reviews existing UI components for design-system consistency, states, responsiveness and accessibility using consumer-owned context. Use when asked to review component quality, check design-system adherence or audit component consistency.

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Configures shared sources and drafts context with independent writers. Plain/fresh setup offers installation of user-named packages and reuses built-in browser capabilities, adding browser tooling only for an evidenced required-check gap. Use for setup, source repair, writing context or refreshing drafts. Configure-only skips tooling and authoring; installations and activation require separate approval.

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Use the Copilot browser canvas first for rendered route checks, interaction tests, screenshots and visual, responsive or accessibility evidence. Use configured isolated Playwright MCP only when the canvas is unavailable for a required check.

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Builds new UI prototypes and makes targeted changes to existing prototypes using consumer-owned context. Use when asked to build a prototype, mock up a UI, or add, change, refine or recreate part of an existing prototype. Do not use for unrelated tasks, routine commands, Git lifecycle actions, acknowledgements or infrastructure work.

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Review Replica pull requests using the same shared conventions and project guides as implementation agents. Use when reviewing changes to code, tests, workflows, or documentation in this repository.

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Review Hub feedback for reusable design themes through discovery, independent judging and synthesis. No diagnosis or optimization.

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Reviews page hierarchy, grouping, density, actions and state design using consumer-owned product and design-system guidance. Use when asked for a visual design review, page critique or whether a new page communicates its task clearly.

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Guides product-design decisions using the consuming repository's design-system, product, and repository context. Use when designing UI, choosing layout or navigation, handling states and forms, messaging, disclosure, onboarding, visualization, copy, delete, filter, or search interactions. Triggers on 'design guidance', 'how to design', 'UI pattern', 'product design', 'scenario pattern', 'confirmation dialog', 'delete flow', 'copy to clipboard', 'filter', and 'search'.

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Writes a lightweight Markdown concept handoff from existing decisions and evidence. Use when explicitly asked for a developer handoff, to transfer a prototype or concept to another team, or to prepare a brief for implementation. Not for ordinary prototype completion, building, reviewing or publishing.

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Use for explicit agent-browser CLI checks or a named browser capability neither the Copilot canvas nor configured Playwright MCP can supply. Ordinary rendered checks and browser selection belong to browser-canvas-validation.

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Audits UI layout, overflow and navigation across product-defined viewports using consumer context and browser tools. Use when asked to check responsiveness, test mobile layout or audit breakpoint behavior.

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