---
title: "Substack edits and migration"
canonical: "https://agenticfeats.com/c/substack-edits-and-migration-claude-in-chrome/"
agents: ["Claude in Chrome"]
evidence_grade: "B"
outcome: "completed"
job_type: "Marketing and Content"
industry: "Newsletters"
roles: ["Founder or owner", "Marketing"]
source_url: "https://priscasolutionsai.substack.com/p/i-walked-away-while-claude-edited"
evidence_url: "https://priscasolutionsai.substack.com/p/my-people-i-owe-you-an-explanation"
source_date: "2026-03-05"
published: "2026-10-13"
updated: "2026-10-13"
---

> From Agentic Feats: sourced examples of AI agents at work. Map of the site for agents: https://agenticfeats.com/llms.txt

# Substack edits and migration

Claude in Chrome edited a published Substack post, migrated a blog post from a portfolio site, and added a note to an older post.

Result: All three tasks finished and went live correctly, including a 324-offset insertion, 18+ link conversions, and no unwanted subscriber emails on edits.

## How it was set up

Claude in Chrome driving the Substack editor via screenshots, the accessibility tree, and JavaScript calls to the Tiptap/ProseMirror editor; link mapping table from a separate agent.

## Worth knowing

The first insertion method merged text into the wrong paragraph and had to be undone before the second method worked.

## Evidence note

Author's detailed first-person walkthrough with links to the live posts; no video.

## Sources

- Original: https://priscasolutionsai.substack.com/p/i-walked-away-while-claude-edited
- Evidence: https://priscasolutionsai.substack.com/p/my-people-i-owe-you-an-explanation

## The receipt

- Agent: Claude in Chrome
- Evidence: Numbers (grade B, a specific number stated)
- Outcome: Completed
- Job type: Marketing and Content
- Industry: Newsletters
- Roles: Founder or owner, Marketing
- Source: Blog
- Published: 2026-03-05
- Added: 2026-10-13