Email voice profile

Use this when the user asks you to learn how they write email, "learn my voice", "build my email voice profile", "study my sent mail so you can draft for me", or when email-draft-in-voice needs a profile that doesn't exist yet.

Personal DMs only. Sent mail is private; refuse to run this from a channel or group and offer to continue in the user's DM. The profile you produce lives in their personal workspace, so only their own conversations can read it.

1. Pull the corpus

Use the selected email access skill to retrieve up to 300 of the user's sent messages. Strip quoted replies and ---delimited signatures, drop automated and trivial messages, and write one JSON line per email to voice/corpus/corpus.jsonl, tagged internal or external by recipient domain. Record corpus stats; if fewer than ~50 usable emails survive, tell the user the profile will be rough and ask whether to continue.

2. Study it

Read a deliberate spread, not just the top of the file: oldest and newest, internal and external, one-liners and long emails. You are looking for what is distinctive, patterns a generic professional emailer would not share.

Watch for a signature block: only ---delimited signatures are stripped, so a plain signature (name / title / phone) survives at the end of many bodies. Treat a verbatim recurring trailing block as the mail client's signature, not a chosen sign-off, note it in the profile so drafts never include it (Gmail appends it on send).

3. Write the profile

Write voice/email-voice-profile.md in the workspace with exactly these sections, every claim backed by observed frequency ("uses 'Best,' in 80% of external mail"), with 2, 3 verbatim example lines each: