Master context engineering and prompt engineering for AI agents and LLMs. Optimize system prompts, craft few-shot examples, implement chain-of-thought reasoning, manage context windows, design structured outputs, and build self-improving prompt patterns. Covers Anthropic, OpenAI, and Google best practices. Includes prompt optimizer that audits drafts against best practices, and context builder that generates optimal context windows for any task. Built for AI agents — Python stdlib only, no dependencies. Use for prompt optimization, system prompt design, agent instruction writing, LLM output debugging, context window management, and few-shot example crafting.
context-engineer sits in the Engineering category under the performance sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.
These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.
From the source SKILL.md
Master skill for context engineering and prompt engineering — the art of crafting optimal inputs to LLMs.
What this skill does
context-engineer is a community-contributed Claude Code skill in the performance sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/a6-context-engineer/ and loads when your prompt matches the skill's trigger.
Who uses this skill
The context-engineer Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 188,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
Or just download SKILL.md directly and drop it into ~/.claude/skills/a6-context-engineer/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/a6-context-engineer/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\a6-context-engineer\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Telegram
📱 Install from your phone or desktop Telegram
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
Pro
One-click install via the desktop app
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
Pro
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
How do I install the context-engineer Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/a6-context-engineer/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the context-engineer skill do?
Master context engineering and prompt engineering for AI agents and LLMs. Optimize system prompts, craft few-shot examples, implement chain-of-thought reasoning, manage context windows, design structured outputs, and build self-improving prompt patterns. Covers Anthropic, OpenAI, and Google best practices. Includes prompt optimizer that audits drafts against best practices, and context builder that generates optimal context windows for any task. Built for AI agents — Python stdlib only, no dependencies. Use for prompt optimization, system prompt design, agent instruction writing, LLM output debugging, context window management, and few-shot example crafting.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the context-engineer skill?
Use context-engineer when your Claude Code task falls under the Engineering category — specifically in the performance area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use context-engineer" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the context-engineer skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. context-engineer is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.
@misc{a6-context-engineer-2026,
author = {satoshistackalotto},
title = {context-engineer [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/a6-context-engineer/}
}
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