/gsd-sketch
Sketch UI/design ideas with throwaway HTML mockups, or propose what to sketch next (frontier mode)
$ npx -y skills add open-gsd/gsd-core --skill gsd-sketch --agent claude-codeHow it fires
How this skill gets triggered: by you, by Claude, or both.
- Fires itselfAuto-invocation. Claude auto-loads it when your prompt matches the work.Auto-invocation is when the right skill fires by itself at the right moment, driven by a FLOW.md router and a hook, instead of you invoking it by name. It is the difference between a skill being installed and a skill actually getting used.Read the full definition →
- You can call itInvoke it directly when you want it.
- Slash command
/gsd-sketch
Context preview
The summary Claude sees to decide when to auto-load this skill.
Sketch UI/design ideas with throwaway HTML mockups, or propose what to sketch next (frontier mode)
SKILL.md
gsd-sketch.SKILL.mdname: gsd-sketch
description: "Sketch UI/design ideas with throwaway HTML mockups, or propose what to sketch next (frontier mode)"
argument-hint: "[design idea to explore] [--quick] [--text] [--wrap-up] or [frontier]"
allowed-tools:
- Read
- Write
- Edit
- Bash
- Grep
- Glob
- AskUserQuestion
- WebSearch
- WebFetch
- mcp__context7__resolve-library-id
- mcp__context7__query-docs
<objective> Explore design directions through throwaway HTML mockups before committing to implementation. Each sketch produces 2-3 variants for comparison. Sketches live in `.planning/sketches/` and integrate with GSD commit patterns, state tracking, and handoff workflows. Loads spike findings to ground mockups in real data shapes and validated interaction patterns.
Two modes:
- **Idea mode** (default) — describe a design idea to sketch
- **Frontier mode** (no argument or "frontier") — analyzes existing sketch landscape and proposes consistency and frontier sketches
Does not require prior new-project setup — auto-creates `.planning/sketches/` if needed. </objective>
<execution_context> @~/.claude/gsd-core/workflows/sketch.md @~/.claude/gsd-core/workflows/sketch-wrap-up.md @~/.claude/gsd-core/references/ui-brand.md @~/.claude/gsd-core/references/sketch-theme-system.md @~/.claude/gsd-core/references/sketch-interactivity.md @~/.claude/gsd-core/references/sketch-tooling.md @~/.claude/gsd-core/references/sketch-variant-patterns.md </execution_context>
<runtime_note> **Copilot (VS Code):** Use `vscode_askquestions` wherever this workflow calls `AskUserQuestion`. </runtime_note>
<context> Design idea: $ARGUMENTS
**Available flags:**
- `--quick` — Skip mood/direction intake, jump straight to decomposition and building. Use when the design direction is already clear.
- `--wrap-up` — Package sketch design findings into a persistent project skill for future build conversations. Runs the sketch-wrap-up workflow.
</context>
<process> Parse the first token of $ARGUMENTS:
- If it is `--wrap-up`: strip the flag, execute the sketch-wrap-up workflow end-to-end.
- Otherwise: execute the sketch workflow end-to-end.
Preserve all workflow gates (intake, decomposition, target stack research, variant evaluation, MANIFEST updates, commit patterns). </process>
Read more
name: gsd-sketch description: "Sketch UI/design ideas with throwaway HTML mockups, or propose what to sketch next (frontier mode)" argument-hint: "[design idea to explore] [--quick] [--text] [--wrap-up] or [frontier]" allowed-tools: - Read - Write - Edit - Bash - Grep - Glob - AskUserQuestion - WebSearch - WebFetch - mcp__context7__resolve-library-id - mcp__context7__query-docs
<objective> Explore design directions through throwaway HTML mockups before committing to implementation. Each sketch produces 2-3 variants for comparison. Sketches live in `.planning/sketches/` and integrate with GSD commit patterns, state tracking, and handoff workflows. Loads spike findings to ground mockups in real data shapes and validated interaction patterns.
Two modes:
- **Idea mode** (default) — describe a design idea to sketch
- **Frontier mode** (no argument or "frontier") — analyzes existing sketch landscape and proposes consistency and frontier sketches
Does not require prior new-project setup — auto-creates `.planning/sketches/` if needed. </objective>
<execution_context> @~/.claude/gsd-core/workflows/sketch.md @~/.claude/gsd-core/workflows/sketch-wrap-up.md @~/.claude/gsd-core/references/ui-brand.md @~/.claude/gsd-core/references/sketch-theme-system.md @~/.claude/gsd-core/references/sketch-interactivity.md @~/.claude/gsd-core/references/sketch-tooling.md @~/.claude/gsd-core/references/sketch-variant-patterns.md </execution_context>
<runtime_note> **Copilot (VS Code):** Use `vscode_askquestions` wherever this workflow calls `AskUserQuestion`. </runtime_note>
<context> Design idea: $ARGUMENTS
**Available flags:**
- `--quick` — Skip mood/direction intake, jump straight to decomposition and building. Use when the design direction is already clear.
- `--wrap-up` — Package sketch design findings into a persistent project skill for future build conversations. Runs the sketch-wrap-up workflow.
</context>
<process> Parse the first token of $ARGUMENTS:
- If it is `--wrap-up`: strip the flag, execute the sketch-wrap-up workflow end-to-end.
- Otherwise: execute the sketch workflow end-to-end.
Preserve all workflow gates (intake, decomposition, target stack research, variant evaluation, MANIFEST updates, commit patterns). </process>
Git. Ship. Done. A light-weight meta-prompting, context engineering, and spec-driven development system for Claude Code, OpenCode, Antigravity CLI, Kimi CLI, Kilo, Codex, Copilot, Cursor, Windsurf, and more.
Repo: open-gsd/gsd-core
Other skills on gsd-core.
- /gsd-add-tests
Generate tests for a completed phase based on UAT criteria and implementation
Open skill - /gsd-ai-integration-phase
Generate an AI-SPEC.md design contract for phases that involve building AI systems.
Open skill - /gsd-audit-fix
Autonomous audit-to-fix pipeline — find issues, classify, fix, test, commit
Open skill - /gsd-audit-milestone
Audit milestone completion against original intent before archiving
Open skill - /gsd-audit-uat
Cross-phase audit of all outstanding UAT and verification items
Open skill - /gsd-autonomous
Run all remaining phases autonomously — discuss→plan→execute per phase
Open skill

