Summarize a long email thread into decisions and open asks
beginnerClaude HaikuPersonal ProductivityEmailemailsummarythreadscommunicationsynthesis
Use case
Use this when you've been added to a thread mid-conversation, when you need to brief a leader on a thread before a meeting, or when you're returning from PTO to a chain that has spiraled. Read once, get the state, move on.
The prompt
You are summarizing an email thread for me. I'll paste the full thread (oldest to newest or newest to oldest — figure it out from timestamps). Produce a structured summary with these sections: 1. ONE-LINE STATE OF PLAY — what is the thread about and where does it stand right now 2. KEY PARTICIPANTS — name, role/affiliation if known, their stance or interest 3. DECISIONS MADE — explicitly agreed in the thread, with who agreed and when 4. OPEN QUESTIONS — what is still being debated or unanswered 5. OUTSTANDING ASKS — who owes what to whom, with implied deadlines 6. RISKS / TENSIONS — any disagreements, frustration, or political dynamics 7. WHAT I SHOULD DO NEXT — concrete next action for me specifically (given my role:{{my_role}}) My role in the thread:{{my_role}}My specific concern or angle:{{my_angle}}Email thread: ---{{thread_content}}--- Be terse. Bullet points, no prose paragraphs. If a section has nothing, write "(none)" and move on.
Variables
{{{{my_role}}}}Replace with your {{my role}}{{{{my_angle}}}}Replace with your {{my angle}}{{{{thread_content}}}}Replace with your {{thread content}}
Example
Input
my_role: I was just CC'd; I run procurement and need to know if I'm on the hook my_angle: Whether vendor selection has actually been finalized or is still open thread_content: | [14 messages over 6 days between Marketing, Legal, Finance, and IT discussing whether to sign with HubSpot or Marketo, with the CMO pushing HubSpot, CFO worried about cost, IT flagging a security review delay, and Legal asking about data residency. Latest message: CMO says "let's pick something by Friday."]
Output
STATE OF PLAY Marketing wants to sign a marketing automation platform by Friday; HubSpot is the front-runner but security and legal reviews are not closed. KEY PARTICIPANTS - Lena (CMO): pushing HubSpot, wants speed - David (CFO): cost-sensitive, hasn't blocked but flagged 3-year TCO - Raj (IT): security review for HubSpot still pending; estimated 5 more business days - Mira (Legal): asked HubSpot for EU data residency confirmation; no answer yet - You (Procurement): just looped in, no stance yet DECISIONS MADE - Shortlist narrowed to HubSpot vs Marketo (Tuesday) - Marketo deprioritized due to integration concerns (Wednesday) OPEN QUESTIONS - Will HubSpot security review finish in time for Friday signature? - Has data residency requirement been confirmed? - Is the CFO's TCO concern resolved or just deferred? OUTSTANDING ASKS - Raj owes: security review status update (no deadline given but Friday is implied) - HubSpot owes Mira: data residency confirmation - Lena expects: signed contract by Friday RISKS / TENSIONS - CMO speed vs. IT/Legal due diligence — classic - CFO has been quiet for 2 days; silence may not be agreement - "Pick by Friday" is a soft mandate, not a real deadline WHAT I SHOULD DO NEXT Reply asking: (1) is procurement formally driving the contract or supporting? (2) what's the actual must-sign-by date — Friday or end of month? Block any signature until security and legal greens are explicit.
Tips for best results
- 1Tell Claude your role explicitly. The same thread looks completely different to procurement vs. marketing vs. legal.
- 2The 'tensions' section is the most useful and the one people skip. Surface political dynamics so you don't walk into a landmine.
- 3If you're the one being asked something in the thread, the WHAT I SHOULD DO NEXT section is your action item — don't just file the summary.
- 4Re-run this prompt every time the thread adds 10+ messages. Old summaries get stale fast.
- 5Paste the whole thread, not your manual extract. Models catch tone and dropped questions you missed.
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