A Claude Code plugin that coaches junior engineers through real coding tasks the way a great senior would — plan first, build with feedback, and watch your understanding compound.
The framework teaches you the blocks. The courses build your judgment with graded reps. Scaffold brings that same coaching into your own repo, on the work you're already doing.
Before any code, Scaffold walks you through a plan and pushes on your reasoning — so you practice the thinking, not just the typing.
It maintains a living wiki of your codebase plus a ledger of what you've actually demonstrated you understand — so each task builds on the last. Built on Karpathy's LLM Wiki pattern.
Each commit comes with a report on what you learned and where your gaps still are. Progress you can see, not just vibes.
The wiki extends Andrej Karpathy's LLM Wiki idea — an AI-maintained markdown wiki of how a codebase works — and adds a second ledger: a dated, signed record of what you've actually demonstrated. Together they make "what do I know?" and "what are my gaps?" honestly answerable.
# Job Queue Producer: checkout-service → `orders` queue Consumer: fulfillment-worker (idempotent on order_id) ⚠ Retries can double-send email — dedupe on event_id Last touched: task #47 (add refund worker)
# What you've shown ✅ Queues — internalizing caught the AI's missed dedupe · task #47 · 2026-06-12 ✅ Services vs Workers — solid · task #41 ⚠ Idempotency — review flag (2 misses in 6 weeks) next: a task that re-proves it, + the page to re-read
Scaffold is built for individual junior engineers who want to get better, fast — bootcamp grads, new grads, career switchers, and self-taught developers working in a real codebase. It's a mentor for your growth, not a productivity tool for shipping faster.
Free and open source. Inside Claude Code:
Then run /scaffold in any repo. The first run creates a gitignored scaffold-wiki/ — your ledger stays on your machine, sent nowhere.
Settings → Capabilities → Skills → Add Skill. Download the repo, then upload the scaffold/skills/scaffold folder.
Try it and tell me what breaks. Run Scaffold on real work for two weeks and tell me the one moment it annoyed you most — open an issue or reply to the Saturday letter. Make it to the end and Course 1 is on me.
