Folders

CLAUDE.md                    how Claude works on this app
README.md                    what the app is, the report format, the connectors
product/DESIGN.md            the table rules
app/                         the app itself
  .env                       your connector keys (private, never in git)
  .env.example               every installed connector's keys, empty
  wiki/                      this wiki: one file per page, a folder per section
  public/wiki/               images for the wiki
  src/reports/<id>/          one report: report.tsx and its .sql files
  src/metrics/               named metrics (metrics.ts) and the dictionary
  src/connectors/            the connectors, one folder each
  src/components/report-kit/ the report-kit: the blocks and the checks

What you change

Ask Claude to change these; they are your content:

Folder	Holds
`app/src/reports/`	Your reports
`app/src/metrics/`	Your named metrics
`app/wiki/`	This wiki and your own pages
`app/.env`	Your database keys

What the kit owns

The rest is the app's code. It changes when the kit is updated (see Kit updates) or when content cannot do what you need. Claude changes it only then.