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Devtools

Code History Explainer

Ask why a line of code exists and get the story from commits and PRs.

Intermediate14h1–2 people17/20 fit
TL;DR

Build Code History Explainer for developers working on legacy code in ~14h with 1–2 people. Stack: Git + GitHub API + LLM.

Why it wins: Saves hours of archaeology.

Build flow

01 · Problem
Legacy code has strange lines nobody remembers adding.
02 · Solution
Trace the line through git history, collect related commits, PRs and issues and summarise the reasoning with links.
03 · Build
  1. 1Run git log for the line
  2. 2Fetch PRs
  3. 3Summarise
  4. 4Show links
04 · Demo
Click a weird line and read its history.

MVP checklist

  • Line history
  • PR and issue links
  • Summary
  • Editor integration

Tech stack

TechRole
GitVersion control
GitHub APIRepo + PR data
LLMLanguage model

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