# US01-01 — Inventory and Characterize Donor Code

Epic: [E01](../E01-shared-identity-inventory.md)

**State: done (2026-07-15).** Deliverables: [`donor_ledger.yaml`](../../donor_ledger.yaml)
(44 rows, all 12 required areas), characterization suite
`tests/characterization/` (61 tests incl. ledger lint), all passing via
`python3 -m pytest tests/characterization/`. No legacy file moved.

As a maintainer, I want a donor ledger and characterization suite for the current CLI
implementations so proven behavior is reused deliberately instead of rewritten.

## Acceptance criteria

- Relevant functions in both CLI codebases are classified as reuse, extract, refactor,
  or replace, with rationale and target module.
- The ledger covers discovery, hashing, imaging, NSFW, vision, EXIF, database, UI,
  configuration, logging, cancellation, and error behavior.
- Representative current outputs are captured against stable fixture IDs.
- No legacy file is moved or archived in this story.

## Automated tests

- Characterization tests run against current donor entry points and core functions.
- A ledger-lint test rejects missing source references, target locations, or test IDs.