Write a recommendation letter for someone you know

Write a recommendation letter for {{candidate}}, who is applying for {{opportunity}}. I am writing as {{my_role_and_relationship}}. The letter goes to {{reader}}, who will compare many candidates, so it helps most when it gives specific evidence they can trust rather than general praise.

What the opportunity asks for (the qualities, skills or criteria that matter):
"""
{{criteria}}
"""

What I saw them do, with examples, results and dates where I have them:
"""
{{evidence}}
"""

Anything I am not comfortable saying, or limits on what I observed: {{limits}}

Format: a standard business letter.
- 300 to 450 words, with "[Date]" and "[Recipient name and address]" at the top for me to complete.
- Opening paragraph: who I am, how I know the candidate, for how long and in what capacity, and my recommendation in one clear sentence.
- Two or three body paragraphs, each built around one of the criteria above and one concrete example from my evidence, so the reader can picture what the candidate did.
- A closing paragraph that restates the recommendation and offers to answer questions, with "[phone or email]" as a placeholder.
- Sign it "{{signature}}".

The tone should be warm, confident and measured, like a careful professional who means every word. For example, a sentence in the form wanted: "When our scheduling system failed in peak season, they rebuilt the staff schedule by hand over a weekend and kept every clinic open."

Use only the evidence I gave. Do not add achievements, numbers, rankings or qualities I did not describe, because I am vouching for every line with my name. If a criterion has no evidence in my notes, leave it out of the letter and list it after the letter with a question for me, rather than filling the gap with general praise. Also list any criterion the letter leaves out for lack of room.