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crux

Summarize a spec, plan, proposal, or design doc crux-first — a one-sentence essence, then the few load-bearing design decisions ordered by leverage, each…

Skill by nulltea

IndexedLicense unknown
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Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/nulltea-crux

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Summarize a spec, plan, proposal, or design doc crux-first — a one-sentence essence, then the few load-bearing design decisions ordered by leverage, each contrasted against the current implementation / status quo it replaces, closed with a one-line crux that reframes the whole design. Use when the user asks to "summarize the spec/plan/proposal", "what's the key idea", "what's the crux", "what differentiates this design", "TL;DR this doc", or similar — instead of a section-by-section recap.

Use cases: documents, design, productivity

Reviews

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
No tools found
Secrets
None asked for
Install scripts
None found

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/crux

What's inside

Skill name
crux
Description
Summarize a spec, plan, proposal, or design doc crux-first — a one-sentence essence, then the few load-bearing design decisions ordered by leverage, each contrasted against the current implementation / status quo it replaces, closed with a one-line crux that reframes the whole design. Use when the user asks to "summarize the spec/plan/proposal", "what's the key idea", "what's the crux", "what differentiates this design", "TL;DR this doc", or similar — instead of a section-by-section recap.
License
unknown
Instructions
73 lines in SKILL.md · view on GitHub

Files (1)

  • SKILL.md

The license isn't open source, so the instructions aren't shown here. Read SKILL.md on GitHub

More from nulltea/skills

Signals

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Last commit (this folder)
Aug 5, 2026 (2 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
License unknown
Repository
github.com/nulltea/skills
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
GitHubgithub-graphql

More from nulltea

Cite this page

crux skill. Agent Mart. https://agentmart.dev/skills/nulltea-crux (last updated 2026-10-24)