In 2026, the repo is meant for context, not just code.
Research findings that live in slides and shared folders go missing at scope time, and an adoption target fills the gap. Why the durable part belongs in the repo next to the spec.
Read the postWrite the spec like a regular doc — free to start, no credit card.
the specgit blog
Blog
Writing on product specs, docs that live in the repo, and GitHub-native collaboration for product teams. specgit is a GitHub-native docs collaboration app: saves are commits, comments are pull request threads, publish is a merge. GitHub remains the source of truth, and specgit never keeps a copy of your documents or comments.
When AI doubles the roadmap, the spec becomes the bottleneck
Leadership spent this year's AI speed increase on more items instead of finishing the current list sooner. That made definition and review heavier, and a spec that cannot ride the same review path as the code falls behind first.
Read the postWhy product specs go stale when they live away from the code
Spec drift isn't a discipline problem — it's a location problem. Decisions happen in the repo while the doc lives somewhere else. What changes when the spec sits next to the code, without asking PMs to learn Git.
Read the postNotion vs GitHub for product specs
A fair comparison of Notion and GitHub as the home for product specs — writing experience, review, history, permissions, AI agents, and tracking — and why the source of truth belongs in the repo.
Read the postPRD chatbot vs docs in the repo
AI PRD generators are genuinely good at drafting. But drafting was never the expensive part — the expensive part is where the spec lives afterward and how engineers review it. A fair comparison of the two, and why they solve different problems.
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