# W5 | anthropic/claude-opus-5 | run 2

## Prompt

Write an apology email to a client. We missed the agreed delivery date by a week due to an internal mistake (not their fault); the client is frustrated. Be sincere, take responsibility, offer a concrete next step, don't grovel. Under 130 words.

## Response

**Subject:** Apology and updated delivery plan

Hi [Name],

I'm sorry we missed the [date] delivery. The delay was caused by an internal handoff error on our side — not by anything on yours — and I understand the frustration that's created for your team.

Here's where we stand: the [deliverable] is complete and in final review now. I'll have it to you by [new date, specific] and will send a short status note tomorrow so you're not left guessing.

To prevent a repeat, I've assigned a single owner to this project and added a checkpoint two days before every future deadline.

If it would help to talk through the impact on your timeline, I'm available [two time windows]. Happy to work around your schedule.

Thanks for your patience,
[Your name]

Want a shorter, more direct version — or one that includes a goodwill gesture like a discount or credit?
