# A thumbnail system for technical field notes

> Day 10 of the AI Agent Field Notes traffic experiment.

Format: Reusable Template
Target reader: Technical founders and builders who need trustworthy post visuals.
Primary channel: LinkedIn
Secondary channel: X
Canonical URL: https://zack-dev-cm.github.io/docs/field-notes/thumbnail-system-for-technical-field-notes.md

## Reader Win
A reusable thumbnail brief that starts from real artifacts before using generated imagery.

## Evidence To Use
Portfolio screenshots, stats panels, project cards, and generated thumbnail prompt directions.

## Thumbnail Direction
Thumbnail template showing screenshot-first layout, callout band, and optional GPT Image texture area.

## Writer Brief
Explain why real UI evidence earns trust faster than generic generated art.

## Call To Action
Subscribe to AI Agent Field Notes

## Public-Surface Rules
- Use real screenshots, generated public files, or dated public marketplace data as evidence.
- Do not include credentials, private account identifiers, unpublished analytics, or client-specific operational details.
- Treat marketplace downloads as listing-download evidence, not user-count proof.