How to Build an AI Prompt Library for Your Executive Team

A prompt library is a curated, organised collection of tested prompts for specific tasks. Each entry includes the prompt itself, the task it is designed for, the AI tool it works best with, and ideally an example of the kind of output it produces.

The business case for a shared prompt library: without it, each executive and team member discovers effective prompts through individual trial and error. They may share prompts informally, but there is no systematic capture of what works. AI adoption is inconsistent, and the quality of AI outputs varies widely across the organisation.

With a prompt library: new users start with tested prompts rather than blank pages. Effective prompts discovered by one team member benefit the whole team. The library becomes a living resource that improves over time. And executives who are pressed for time can use tested prompts without the overhead of prompt engineering.

Start by identifying the 15-20 recurring tasks in your executive team's working week where AI could add value. Typical categories: meeting preparation, email drafting, document analysis, board paper production, research and briefing, competitive intelligence, decision preparation, and communication review.

For each task category, document the two or three prompts that produce the best outputs. Include context about when to use each prompt and what to expect from the output.

Format each prompt entry with: Task: what the prompt is for AI tool: which tool it works best with (Claude, ChatGPT, Copilot in [application]) Prompt: the full prompt text, with [BRACKETED PLACEHOLDERS] for the information the user needs to insert Expected output: a brief description of what a good output looks like Notes: any important caveats (this prompt works better with Claude's extended context window; this prompt requires the document to be pasted in; etc.)

A SharePoint document or OneNote notebook works well as a prompt library for Microsoft 365 teams. A shared Google Doc works for Google Workspace teams. The tool is less important than the organisation: group prompts by task category, make it easy to search, and establish who is responsible for maintaining it.

Maintenance is the most common failure mode for prompt libraries. They are built with enthusiasm and then not updated, becoming stale and unreliable. Establish a light maintenance process: a quarterly review to test whether prompts still work as expected, remove prompts for tools that are no longer used, and add new prompts for tasks that have emerged since the last review.

Assign ownership to someone who will take it seriously: a chief of staff, a digital transformation lead, or an EA who is a strong AI user and has the access to interact with the senior leadership team regularly.

Based on the tasks where AI adds most consistent value, every executive team prompt library should include prompts for:

Meeting preparation: '[Document type] briefing for a [audience type] meeting with [context]. Summarise: the key points, the decisions required, and the three questions I should be prepared to answer.'

Board paper review: 'Review this board paper and identify: (1) the decision being requested, (2) any assumptions that are not evidenced, (3) risks not addressed, (4) inconsistencies between sections.'

Difficult conversation preparation: 'I need to have a conversation with [person type] about [situation]. Draft the key points I should make, the objections I should anticipate, and my response to each.'

Email drafting: 'Draft a [formal/informal] email to [recipient type] [purpose]. Key points: [bullet points]. Tone: [tone guidance]. Length: maximum [X] paragraphs.'

Document summary: 'Summarise this document in [format: bullet points/one-page brief/executive paragraph]. Audience: [audience type]. Include: key findings, recommendations, and next steps.'