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Record architecture decisions from Claude Code as markdown in your repo

After making 14 architecture decisions and rejecting 15 alternatives in 3 days, a developer built datlas: say "record this" in Claude Code and the decision and its reasoning land in the repo as a markdown file.

$17/mo10 minutesBeginnerSource linked

Source

@vky5_ on X · 2026-10-22

Written in our own words. Credit to the original author. Link checked 2026-10-22.

What they did

After making 14 architecture decisions and rejecting 15 alternatives in 3 days, a developer built datlas: say "record this" in Claude Code and the decision and its reasoning land in the repo as a markdown file.

Result (as claimed)

The why behind each choice now lives next to the code.

Tools they used

Claude CodeGit

Cost: Claude Code: from $17/mo.

Set it up

  1. Pick a contained repo or task

    Start on a branch or side project where mistakes are cheap.

  2. Install and configure

    Set up Claude Code, Git. Read what it can run on your machine and limit permissions where possible.

  3. Run it on a real task

    Give it a well-scoped issue and let it work. Review the diff like any pull request.

  4. Add guardrails

    Keep tests and CI in the loop, and never let an agent push to main or touch production secrets unattended.

Copy the full setup prompt

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Goal: Record architecture decisions from Claude Code as markdown in your repo
What the original author did: After making 14 architecture decisions and rejecting 15 alternatives in 3 days, a developer built datlas: say "record this" in Claude Code and the decision and its reasoning land in the repo as a markdown file.
Reported result (as claimed by the author): The why behind each choice now lives next to the code.
Source: https://x.com/vky5_/status/2113306716146380830
Tools they used: Claude Code, Git
Category: Dev & ops

Please:
1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like).
2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure.
3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data.
4. Finish with a checklist to run it again next time.

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Guides for this use case

How to vibe code an app with Claude Code

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