# Quality scorecard (the ratchet)

Cheap to measure (`grep -c`, `wc -l`, `clj-kondo`), recorded **before/after each
migration** in the commit message and in the results table below. **No metric may regress
for the touched modal** without a written exception in `gotchas.md`. These are directional
evidence, not targets to game — always paired with the e2e parity gate.

## Heuristics

| # | Heuristic | Measure | Target |
|---|-----------|---------|--------|
| 1 | Faked cursor positions (not cursors themselves) | `grep -cE 'with-cursor\|MapCursor\.'` re-roots + `grep -c 'defn.*-no-cursor'` | → 0 (top-rooted cursors are fine) |
| 2 | Implicit state merges (snapshot/cursor) | count merge sites | → 0 (forms); explicit `put-step` only (wizards) |
| 3 | Branching complexity | `clj-kondo`, or count `cond`/`condp`/`case`/nested `if` + max depth | net ↓ |
| 4 | Lines of code | `wc -l` on the modal's file(s) | net ↓ |
| 5 | Reuse / cross-form similarity | cookbook components reused; duplicated-block count | reuse ↑, dup ↓ |
| 6 | Route count | count routes for the modal | → 2 (+1 for add-row) |
| 7 | OOB swaps | `grep -c hx-swap-oob` | → 0 unless a justified disjoint-region case is documented |
| 8 | Attribute consistency | mixed `:x-`/`"x-"` encodings in migrated template | → 0 |

## How to measure (copy/paste)

```bash
F=src/clj/auto_ap/ssr/<modal>.clj
echo "LOC                $(wc -l < $F)"
echo "no-cursor twins    $(grep -c 'defn.*-no-cursor' $F)"
echo "faked-cursor roots $(grep -cE 'with-cursor|MapCursor\.' $F)"
echo "snapshot merges    $(grep -c ':multi-form-state :snapshot' $F)"
echo "branch forms       $(grep -cE '\(cond |\(condp |\(case |\(when-not ' $F)"
echo "hx-swap-oob        $(grep -c 'hx-swap-oob' $F)"
echo "mixed string hx-   $(grep -cE '\"hx-[a-z]' $F)"
# route count: count this modal's entries in src/cljc/auto_ap/routes/*.cljc
```

## Results

Each migration appends one row (after-numbers), referencing the before in the diff.

| Phase | Modal | LOC | Routes | no-cursor twins | faked roots | snapshot merges | OOB | mixed hx- | cookbook reused / added |
|-------|-------|-----|--------|-----------------|-------------|-----------------|-----|-----------|-------------------------|
| 1 (baseline) | Transaction Edit `transaction/edit.clj` | 1608 | ~12 | 1 | 2 | ~75 | 0 | 8 | — / seeded 7 entries |

> Phase 1 is distillation only — no app code changed. The Transaction Edit row is the
> **before** baseline that Phase 2 must beat (target: routes → ~3, no-cursor → 0, faked
> roots → 0, snapshot merges → 0, LOC ↓, mixed hx- → 0). The `0` OOB is already achieved
> by the merged reference and must not regress.