Your First Context File v1: Project, Goals, Constraints, Preferences
Build Notes15 April 2026Published by Pen & Muse

Your First Context File v1: Project, Goals, Constraints, Preferences

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Part 4 of a 14-part series85 min read · 16,922 words total
Dispatch SeriesPart 4 of 14
The Context Engine

Smarter AI comes from engineered context structure, not more words—fewer degrees of freedom, more reliable decisions.

Series PositionPart 4 of 14
Your First Context File v1: Project, Goals, Constraints, Preferences
How to Design Summaries That Actually Make AI Smarter

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How to Design Summaries That Actually Make AI Smarter

The Rolling Context System: Update Without Bloat

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The Rolling Context System: Update Without Bloat

This builds on Part 3: How to Design Summaries That Actually Make AI Smarter

Continue with Part 5: The Rolling Context System: Update Without Bloat

You don’t need a masterpiece.

You need a working context file—tight enough to guide useful answers, specific enough to stop the model improvising your life.

This is Context File v1: a single document you refine through use, not theory.


What this actually is (and what it isn’t)

Most people treat context like storage.

A context file is not storage.

It’s a control layer.

  • It tells the model what matters
  • It blocks what doesn’t
  • It prevents re-decisions
  • It reduces drift

Context File v1 (copy this exactly)

Use this structure. Don’t optimise it yet. Use it.

Context File v1 — [Project Name]
  1. Project
  • What I’m building/doing:
  • Who it’s for:
  • What success looks like (in one sentence):
  1. Goals
  • Primary goal:
  • Secondary goals (optional):
  • Time horizon (when “done” means something):
  1. Constraints
  • Hard constraints (non-negotiable):
  • Soft constraints (preferences, can bend if needed):
  • Resources/limits (time, budget, tools, access):
  1. Preferences
  • Writing/communication style (tone, length, format):
  • Decision style (how you want tradeoffs handled):
  • Output format preferences (bullets, tables, checklists, etc.):
  1. Decisions Made
  • Decisions I’ve already committed to:
  • Why I chose them (1–2 lines each):
  1. Avoid
  • What to never do:
  • Common failure modes to prevent:
  1. Next Steps
  • What I’m working on right now:
  • What I want from the AI next:
  • What “good output” looks like for this request:

Fill it fast (don’t overthink this)

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The Guest Room

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# The Guest Room **A domestic thriller experience.** --- Claire Hewitt has always kept a tidy life. A good husband. A beautiful home. A spare room she never quite knew what to do with. Then Laura Cole arrives with two bags, a quiet smile, and impeccable references. She is the perfect tenant. Thoughtful. Unobtrusive. Grateful. At first. *The Guest Room* is a slow-burn psychological thriller in which you inhabit Claire's perspective as her home — and her sense of self — begins to shift in ways she struggles to name. A dish moved. A laugh shared too easily. A photograph that feels different without anything changing. Laura isn't doing anything wrong. That's what makes it so hard to explain. As the weeks pass, the warmth in the house no longer feels like hers. --- > *"She isn't taking anything from me. So why does it feel like I'm disappearing?"* --- **Themes:** Identity. Domestic space. Gaslighting. Marriage. What we let in. **Tone:** Quietly suffocating. Warm on the surface. Cold underneath. **Influence:** Freida McFadden · Lisa Jewell · Liane Moriarty --- *This is an Experience — a living narrative. Your choices determine what Claire notices, what she ignores, and how far she lets it go before she acts.* *Some endings are quiet. Some are not.*

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