actionable ai

Free guide

Claude Just Got A 1 Million Token Brain. Most People Will Use It Wrong.

The free playbook with the exact prompt template I use to dump 500K plus tokens into Claude and get a clean structured answer back. Includes 7 workflows that broke at 200K and run clean at 1M, the 4 anti-patterns that kill long context, and how to verify Claude actually used the whole window.

  • The long-context prompt template that keeps Claude focused across 500K plus tokens
  • 7 workflows that broke at 200K and now run clean (codebase QA, contract cross-check, meeting briefs, more)
  • The 4 anti-patterns that make long context look broken
  • How to verify Claude actually used the whole context (not just the top 50K)
  • The exact 'do this week' action to re-test workflows you gave up on

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The prompt template and workflows that turn Claude's new 1M token window from a headline into a real unlock.

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What's inside

01

What's Inside

What changed in Opus 4.7 and why the old rules about chunking break The prompt template I use to keep Claude focused across 500K plus tokens 7 workflows that broke at 200K and now run clean at 1M The 4 anti-patterns that make long context look broken How to verify Claude actually

02

WHAT ACTUALLY CHANGED

Claude Opus 4.7 ships with a 1 million token context window.

03

THE LONG-CONTEXT PROMPT TEMPLATE

This is the template I paste at the top of any prompt where the context is over 100K tokens.

The rest of the guide

  1. WORKFLOW #1 - WHOLE-CODEBASE ARCHITECTURE QADrop your entire codebase into one conversation and ask the architecture questions you previously had to ask one file at a time.
  2. WORKFLOW #2 - LEGAL CONTRACT CROSS-CHECKPaste a full contract (often 80 to 200 pages) and ask Claude to find clauses that contradict each other or contradict your stated requirements.
  3. WORKFLOW #3 - MEETING TRANSCRIPT BRIEFDrop a full 4 to 8 hour transcript and get a structured brief in one prompt.
  4. WORKFLOW #4 - YEARLONG CONTENT AUDITPaste a year of your written content (blog posts, scripts, captions, emails).
  5. WORKFLOW #5 - LARGE-PDF EXTRACTIONDrop a 500-page research report, textbook, or industry deep-dive.
  6. WORKFLOW #6 - FULL CRM DATA PASSPaste your entire CRM export (contacts, deals, notes, last 12 months of activity).
  7. WORKFLOW #7 - WHOLE-PROJECT DOCS REWRITEPaste every documentation file in your project.
  8. THE 4 ANTI-PATTERNS THAT KILL LONG CONTEXTANTI-PATTERN 1: Dumping context with no preamble.
  9. VERIFYING CLAUDE USED THE WHOLE CONTEXTA real concern with long context is whether the model actually used the bottom half or just the top.
  10. WHAT TO DO THIS WEEKPick one workflow you gave up on Claude for in the last 12 months.

About the author

Cooper Simson

Founder of Actionable AI. 30,000+ operators read the newsletter.

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