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Build diaryHonest postmortem
A tool that once tried to help AI agents locate frontend elements precisely. Newer Codex and browser agents are reducing the need for this middle layer.
Postmortem: AI frontend helper
PostmortemDOMPrompter
A tool that once tried to help AI agents locate frontend elements precisely. Newer Codex and browser agents are reducing the need for this middle layer.
- Platform
- macOS / Electron / AI coding
- Status
- Postmortem / Local-first / Open source
- Audience
- Developers using Codex, Cursor, or Claude Code to tune frontend details.
- Support
- Email support
- Legal
- Privacy Policy / Terms of Service
Postmortem
DOMPrompter is positioned as A prompt-helper idea compressed by fast-moving AI frontend agents.
It currently lives across macOS / Electron / AI coding, with public status marked as Postmortem / Local-first / Open source. This page keeps the download path, repository, privacy boundary, support contact, and build diary under one domain.
Element selection, style comparison, and prompt generation happen locally.
- Platform
- macOS / Electron / AI coding Current status: Postmortem / Local-first / Open source
- Audience
- Developers using Codex, Cursor, or Claude Code to tune frontend details. The page explains the product in user-facing language, not just developer notes.
- Privacy
- No personal data collected by the product itself Element selection, style comparison, and prompt generation happen locally.
- Postmortem
- Failure case kept public The product is also used as a reusable teaching case.
What Failed
Each product page is written for users, reviewers, and builders: what it solves, what it does not solve, and what can be reused.
Trust boundary
Element selection, style comparison, and prompt generation happen locally.
Reusable learning asset
Related course hooks include Frontend visual tuning, Structured AI prompts, DOM selectors, Design implementation review.
Failure Reasons
Click-to-capture selectors
This is one of the public-facing capabilities or lessons used to explain DOMPrompter clearly to users, reviewers, and future readers.
Visual style-difference notes
This is one of the public-facing capabilities or lessons used to explain DOMPrompter clearly to users, reviewers, and future readers.
Prompts for Codex and Cursor
This is one of the public-facing capabilities or lessons used to explain DOMPrompter clearly to users, reviewers, and future readers.
Frontend design QA lessons
This is one of the public-facing capabilities or lessons used to explain DOMPrompter clearly to users, reviewers, and future readers.
Lessons
Keep the public promise narrow
The page should only promise what the current product, review state, and distribution channel can actually support.
Make privacy inspectable
Element selection, style comparison, and prompt generation happen locally.
Turn the build into teaching material
The product page and diary series should help other builders understand the decisions, tradeoffs, launch work, and mistakes behind the result.
Postmortem Diary
The diary is kept as a postmortem: why the idea looked reasonable, what changed, and which methods can still be reused.
Frontend visual tuningStructured AI promptsDOM selectorsDesign implementation review
View all build notes 2026-06-19 DOMPrompter · Frontend Detail 2026-06-19 DOMPrompter · Dom Selection 2026-06-19 DOMPrompter · Prompt Contract 2026-06-19 DOMPrompter · Electron Distribution 2026-06-19 DOMPrompter · Design QA 2026-06-19 DOMPrompter · Product Boundary 2026-06-19 DOMPrompter · App Review Settings Web Access
Privacy and Support
Element selection, style comparison, and prompt generation happen locally.