# Session handoff — 2026-06-12 (68)

Sixty-eighth handover. Continues directly from handoff-67 (which
triaged a manual-testing pass into fixes + filed issues). This was an
**issue-burndown session**: six Gitea issues closed across five
commits, each landed with the full phased workflow + a `/runda` +
Devil's-Advocate pass before commit. Net: **six issues closed, five
commits, +29 tests, zero regressions.**

## §1. State at handoff

**Branch:** `main`. Working tree **clean**; all work committed.
**Five unpushed commits** (push is the user's step).

**Tests: 2436 passing / 0 failing / 0 skipped / 1 ignored** (the
long-standing `friendly` doctest). **Clippy clean** (nursery, all
targets). Breakdown: 1730 lib + 506 integration (`it`) + 200
typing-surface-matrix. +29 over handoff-67's 2407.

**Commits since handoff-67:**
```
ee3ccd8 feat(hint): advertise the optional seed count in the hint panel (#26)
deb0948 feat(seed): year-as-int + conventional choice-set heuristics (#33, #34)
fde50ce fix(ui): mark sidebar focus with an accent colour, not bold (#25)
3d4a0fd fix(render): trim IEEE-754 noise from displayed decimal arithmetic (#32)
7e4bc12 fix(completion): treat a bare in-scope table alias as an alias, not an unknown column (#31)
```

## §2. Issues closed this session (all committed, all tested, all `/runda`-reviewed)

Each closed on `git.lazyeval.net/oli/rdbms-playground` with a summary
comment. The `/runda` pass earned its keep on every one — see the
"DA caught" notes.

1. **#31 (`7e4bc12`) — bare table alias treated as unknown column.**
   A bare in-scope table alias in a SQL expression (`… GROUP BY o`,
   `o` aliasing `FROM Orders o`) got `no such column o on table …` and
   zero completions. Now: completion offers each FROM source's
   *qualifier* (alias-if-present-else-table) at a bare `sql_expr_ident`
   slot; the `matched.len()==0` arm emits a targeted
   `alias_used_as_column` / `table_used_as_column` hint after the
   projection-alias check. **DA caught** two real bugs pre-commit: a
   DSL leak (the hint fired for simple-mode `expr_column` refs, which
   have no `table.column` syntax) and wrong advice for an
   aliased-table-by-real-name — both fixed by gating on
   `role == "sql_expr_ident"` + matching the *effective qualifier*.
   ADR-0032 Amendment 3.

2. **#32 (`3d4a0fd`) — decimal aggregation float noise.** `decimal`
   is exact TEXT, but SQLite has no decimal type, so arithmetic
   coerces to IEEE-754 double; `sum(price*qty)` rendered
   `298.59999999999997`. Now `format_real_display` (db.rs) rounds REAL
   to 15 sig figs **for display only**, wired into `format_cell`.
   **DA caught** a real regression: I'd also wired it into
   `render_value`, which is a *canonical identity key* for the
   uniqueness dry-runs (`dry_run_unique`, `check_uniqueness_collisions`)
   — rounding there would report collisions the exact-valued engine
   wouldn't. Reverted `render_value` to exact; locked with a
   regression test. CSV/FK-key/EXPLAIN paths stay exact. ADR-0005
   Amendment 1.

3. **#25 (`fde50ce`) — sidebar focus accent colour, not bold.** Bold
   box-drawing glyphs render broken in asciinema casts.
   `panel_border_style` now uses a non-bold accent colour
   (`theme.mode_simple`); bold stays fine on text spans. **DA caught**
   that the issue's "Tier-2 snapshots need re-accepting" was wrong —
   `render_to_string` is text-only, so no snapshot changed. Added a
   render-level test that inspects the actual border *cells*.
   User visually confirmed. ADR-0046 Amendment 1.

4. **#33 + #34 (`deb0948`) — seed heuristics: year-as-int + choice
   sets.** Two additive D7 catalogue rules. **#33:** `year`/`*_year`/
   `published`/`founded` → bounded `int` year (1950–2025, or the
   `dob`-style birth window 1945–2007 for `birth`/`born`/`dob`); new
   `YearRecent`/`YearBirth` generators. Placed *after* the quantity
   rule so `year_count` stays a count. **#34:** type-gated `PickFrom`
   sets for `priority`/`prio`, `severity`, `rating`/`stars`; `status`
   **deliberately excluded** (user-confirmed on the issue — values too
   domain-specific). `priority` left `ENUM_TOKENS`. A user `IN`-CHECK
   still wins. **DA/process caught** that I'd skipped reading the issue
   *comments* (where the `status` decision + a website cast note lived)
   — **lesson: always read issue comments**. Also closed a
   pre-existing column-fill integration-test gap. ADR-0048 Amendment 1.

5. **#26 (`ee3ccd8`) — optional `count` advertised in the hint panel.**
   At `seed <table> ▮` only `set`/`--seed` chips showed; the optional
   row count (a bare positional number) was invisible, and the prior
   `IntroProse` attempt was reverted because `pending_hint_mode` is
   cleared by the trailing optionals. Now `walk_optional` stashes a
   skipped inner's `IntroProse` key into a new
   `WalkContext.surviving_intro_hint` (key + position) before the empty
   match clears it; a **position guard** (`pos == cursor`) stops it
   leaking past a later `set …` clause or once the count is given. Tab
   still cycles the keywords. Prose mentions the count, `.column`
   column-fill, `set`, and `--seed` (user-chosen scope). **DA caught**
   a coverage gap (advanced-mode path untested — seed runs in both
   modes); added the test. ADR-0022 Amendment 7.

## §3. Open issues — next session's candidates

Four open, all on `git.lazyeval.net/oli/rdbms-playground`. **All four
are interaction/UX design changes that need a decision or two from the
user up front — none is a pure mechanical fix.** Read each issue body
**and its comments** before starting (the #33/#34 lesson).

- **#28 — Reconsider relationship prose in `add column` (incidental
  DDL) confirmations** *(enhancement)*. **Revisits a decided area** →
  needs a **new ADR** superseding the relevant part of ADR-0016 §5 /
  ADR-0044 §1. User preference (from the issue): do **not** show the
  `References:` / `Referenced by:` block in the add-column
  confirmation. Confirm scope with the user (just `add column`, or all
  incidental DDL). The highest-ceremony of the four.

- **#27 — Bottom status line: keybindings-only, context- and
  state-aware; add `mode advanced` to empty hint** *(enhancement)*.
  Per-nav-focus keybindings (Input vs sidebar), **including transient
  states** (Tab-cycle, history) per user preference. May warrant a
  small ADR. Touches `src/ui.rs` rendering + the nav-focus model
  (ADR-0046).

- **#29 — Command input keystroke support.** Esc / double-Esc to clear
  a partly-typed command; possibly Ctrl-A/Ctrl-E (Home/End). Relates
  to the deferred **I1b readline shortcuts** (`requirements.md`).
  **Needs a key-set decision** from the user before coding.

- **#30 — History brings back all commands in both modes.**
  Advanced-mode history entries can't replay in simple mode; proposal:
  if we can distinguish them, prepend `:` to reuse advanced history
  from simple mode. Interaction design; touches the input-history +
  mode model (ADR-0003).

No strong ordering. **#28** is the only one that *must* produce an ADR.
**#29** is closest to "small once the key-set is decided." **#27** and
**#30** are medium UX work.

## §4. Carried-over follow-up (not a `main`-branch task)

- **Website `seed` cast re-record** (from #34's comment thread). The
  `website` branch ships a `seed` cast exercising a `tickets` table
  with `priority`; now that `priority` collapses to `low/medium/high`,
  the cast should be re-recorded (`cd website && pnpm casts seed`,
  needs a `../target/debug` binary) so the table tightens. The issue
  comment notes it is **likely redundant** — casts get a full
  re-record sweep before publication. Tracked on the `website` branch,
  **not** here. `website/` is not in the `main` tree.

## §5. Other open roadmap (unchanged from handoff-67 §5)

`seed` is feature-complete (`requirements.md` SD1/SD2 `[x]`, now with
the #33/#34 catalogue refinements noted inline). User's call:

- **H2 `hint`** — the last A1 gap (its own ADR).
- **TT5 CI** — test infra exists; no CI workflow yet (the `ci` branch
  exists — check its state before starting).
- **TT4 PTY (Tier-4)** — ADR-0008 specifies it; not wired.
- Larger: **V4 journal**, **tutorial/lesson system** (each needs an ADR).

## §6. How to take over

1. Read handoffs 66 → 67 → 68, `CLAUDE.md`, `docs/requirements.md`.
2. Confirm green baseline: `cargo test` (expect 2436 pass / 1 ignored)
   + `cargo clippy --all-targets` (clean).
3. Pick from §3 (#28/#27/#29/#30). **For each, read the issue body AND
   its comments** before designing, and **escalate the design fork to
   the user** before coding — all four have genuine UX decisions. #28
   needs a new ADR.
4. Follow the project workflow: phased (requirements → divergent →
   eval → execute → verify), test-first (failing test before the fix),
   `/runda` + DA pass before every commit, ADR amendment for any
   decided-area change + the README index-upkeep rule, and confirm the
   commit message with the user before committing.
5. Consider a `cargo sweep` at this milestone (`target/` grows across
   sessions; see CLAUDE.md "Build hygiene").