Works with the AI tools you already use
Codebase Explainer & Onboarding Mapper
Dropping into an unfamiliar repo is slow: you don't know how to run it, which of 400 files matter, or how the pieces connect.
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See it in action
You say
Explain this repo — I just inherited it and have to add a feature next week.
Your agent does
An Onboarding Map: a TL;DR (Express API + Postgres, run with pnpm dev); the four directories that actually matter and what each does; the request lifecycle traced route → controller → service → DB; the env vars it won't boot without; a flagged gotcha ("the real payment logic lives in utils/legacy/"); and a 7-file start-here reading list — with an offer to save ONBOARDING.md.
What you get
About this skill
Dropping into an unfamiliar repo is slow: you don't know how to run it, which of 400 files matter, or how the pieces connect. This skill builds the mental model for you and leaves behind an onboarding doc the whole team can reuse.
It runs an ordered pass over any repo:
• Orient — language, framework, build system, and the exact install/run/test/build commands • Architecture overview — what the project is and its overall shape • Key-module map — the directories that actually matter, in priority order, with the files to read first • Core flows — one to three important paths traced end to end, so you see how it connects • Data & dependencies — stores, models, external services, and the config it needs to boot • Conventions & gotchas — the patterns to follow and where the real complexity hides • ONBOARDING.md — assembled into a doc with a "start here" reading list
It cites real files (never invents them), separates what it verified from what it inferred, and prioritizes the 20% you need to grasp the 80%. It explains and documents — it doesn't audit code quality or security; pair it with a code-review or security gate for that.
How to install
Drop the file into your AI Agent. Works with Claude, Cursor, ChatGPT, and 20+ more.
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Creator
PubsProToolkit builds rigor-first skills for AI agents — they write your docs and content properly, then adversarially review them to catch what's wrong before it ships. The result: cleaner output and a hard quality gate in one toolkit. Built by a CMPP-certified, PhD medical writer who brings regulated-industry standards to developer docs, content, compliance, and research integrity.
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