# Gsd:spike

> Spike an idea through experiential exploration, or propose what to spike next (frontier mode)

- Skill: `majiayu000/gsd-spike` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add majiayu000/gsd-spike`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/gsd-spike/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/gsd-spike

---

<objective>
Spike an idea through experiential exploration — build focused experiments to feel the pieces
of a future app, validate feasibility, and produce verified knowledge for the real build.
Spikes live in `.planning/spikes/` and integrate with GSD commit patterns, state tracking,
and handoff workflows.

Two modes:
- **Idea mode** (default) — describe an idea to spike
- **Frontier mode** (no argument or "frontier") — analyzes existing spike landscape and proposes integration and frontier spikes

Does not require `/gsd:new-project` — auto-creates `.planning/spikes/` if needed.
</objective>

<execution_context>
@${CLAUDE_PLUGIN_ROOT}/workflows/spike.md
@${CLAUDE_PLUGIN_ROOT}/references/ui-brand.md
</execution_context>

<runtime_note>
**Copilot (VS Code):** Use `vscode_askquestions` wherever this workflow calls `AskUserQuestion`.
</runtime_note>

<context>
Idea: $ARGUMENTS

**Available flags:**
- `--quick` — Skip decomposition/alignment, jump straight to building. Use when you already know what to spike.
- `--text` — Use plain-text numbered lists instead of AskUserQuestion (for non-Claude runtimes).
</context>

<process>
Execute the spike workflow from @${CLAUDE_PLUGIN_ROOT}/workflows/spike.md end-to-end.
Preserve all workflow gates (prior spike check, decomposition, research, risk ordering, observability assessment, verification, MANIFEST updates, commit patterns).
</process>