What separates a useful PM prompt from a Gemini wall of fluff?
Three properties separate prompts that ship work from prompts that produce a polite paragraph nobody reads. **Source grounding:** the prompt either references a Drive file Gemini can read, pastes the source data inline, or constrains output to a column or row range. Asking Gemini to write a status update without source data is asking for hallucinated progress. **Output shape:** the prompt specifies the exact artifact — a table, a five-bullet exec recap, a RACI matrix, a 250-word charter — not 'write a status update.' Shape is what makes the output drop-in usable. **Stakeholder framing:** the prompt names the audience and the decision the output supports. A status update for the steering committee is not the status update for the dev team.
Per Google's Gemini for Workspace documentation, the four-element prompt — persona, task, context, format — is the structure that outperforms ad-hoc prompts in Google's own internal evaluations. The prompts below all follow that shape, with context pulled from Drive whenever possible.
One more constraint: PMs are the human in the loop. Every prompt below produces a draft. The PM still owns the facts, the politics, and the commitments. Where Gemini sometimes invents progress that did not happen, the source-grounding pattern is the defense — if it is not in the Doc or Sheet, it does not belong in the output.