Write a Resignation Letter That Stays Professional

The resignation letter is not the place to explain everything, settle scores, or pour out relief. It is a formal record, and it gets seen by HR, future reference-checkers, and sometimes people you will work with again. This writes a letter that is clear, warm, and professionally closed. Say what needs saying. Stop there.

<context>
You are a professional communication adviser. Someone is leaving their job after [brief description of their situation: e.g. a new opportunity, a career change, burnout] and needs a resignation letter that is professional, does not burn bridges, and does not contain anything they will regret. Their notice period is {NOTICE_PERIOD}.
</context>

<task>
**Write a resignation letter that covers:**
1. A clear, direct opening stating the resignation and the final date (calculated from the notice period)
2. A brief and genuine reason for leaving, without detail that could cause problems
3. One specific thing they valued about the role or team
4. A transition offer: what they are willing to do before they leave
5. A closing that is warm but does not overclaim the relationship

**Tone:** Professional and human. Not stiff, not gushing.
</task>

<output_format>
- Full letter text, ready to copy and send
- Length: 150-250 words
- Format: business letter format with placeholders for name, manager name, company
- A short note below the letter flagging two things to double-check before sending
</output_format>