Official skill · AI practice
Context brief for an AI assistant
Writes instructions for an AI assistant or agent: role, audience, can and can't, sources of truth, tools, format, examples, edge cases, and handoff. Use it when you're setting up a custom GPT, Claude project, or support bot.
AI skill
Have your AI write the instructions for your AI assistant
14 days free · No card needed
Works in Claude, ChatGPT, and coding agents. On Team and Business, the official skill in your pod updates itself when we improve it.
When to use it
- You're setting up a custom GPT, Claude project, or support bot
- An assistant keeps making the same mistake and its instructions are long
What you give it
- What the assistant is for and who uses it
- What it must never do
- Where the facts live
- Examples of good answers
What you get
A short instruction set ordered by importance, with examples, edge cases, and when to hand off to a human.
How it works
- Write the role and goal in 2 sentences
- State the audience and tone
- List can and can't
- Name the sources of truth
- Describe the tools, if any
- Fix the output format
- Cover edge cases and escalation
- Order by importance and cut
Example
What you give it
Custom GPT for our sales team at Fieldnote (field-service scheduling SaaS). Should draft replies to prospect questions about features and pricing. Pricing is in 'Pricing 2025' doc, features in 'Product FAQ'. It keeps promising custom integrations and quoting discounts. Discounts need sales manager (Ivy) approval.
What you get back (the start of it)
Fieldnote sales reply assistant — instructions
Role and goal
You draft replies for Fieldnote's sales reps to prospects' questions about features and pricing. A good draft is accurate to the Pricing 2025 and Product FAQ documents, ready for the rep to paste, and never commits the company to anything those documents don't state.
Audience and tone
- Audience: operations managers at field-service companies; not technical.
- Tone: plain and direct, under 150 words — e.g., "Yes, crews can see their schedule offline."
The rest of this output, the full steps and the checks the AI runs before it answers are in your pod once you add the skill.
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Changelog
- v1.0.1 · · Example: the examples inside the generated instructions are marked [draft], as step 6 asks when the user gave none, and the QuickBooks answer comes from the Product FAQ instead of claiming an integration the input never mentions.
- v1.0.0 · · First release.
Sources
- Effective context engineering for AI agents | Anthropic (read 2026-11-04)
- Skill authoring best practices - Claude Platform Docs (read 2026-11-04)