Marcos Paulo
138d7c5e4e
Attempt 3 dropped the 880px and 1050px media queries and put the strings back as two variables nothing references, so audit-ui's value contract reported success over a real responsive regression. Records that, plus the fifty `--raw-<hex>` tokens, the `--white-31` churn, and the 35 MB of screenshots it committed. Tagged rejected/15e-attempt-3. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
199 lines
9.4 KiB
Markdown
199 lines
9.4 KiB
Markdown
# Task 15e — Retire responsive.css
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**Agent**: `design-system-keeper` · **Model**: `agy` (Gemini 3.1 Pro — vision)
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**Depends on**: 15d, 16 · **Blocks**: 20 **Worktree**:
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`.agents/scripts/worktree.sh start 15e responsive-css`
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## Goal
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`responsive.css` is 30 KB and mostly served `/full-guide/`. Once 15d and 16 have
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landed, port what the Astro pages still need into component styles or
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`tokens.css`, prove the remainder dead, and delete it.
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**Proof is screenshots, not reading.** A rule that looks unused because no
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selector matches at 1600 px may be the only thing holding the 560 px layout
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together.
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## Method
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1. Build. Screenshot every migrated route at 560 / 800 / 1100 / 1600 px.
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2. Remove `responsive.css` from the build entirely.
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3. Screenshot again. Every diff is a rule you must port.
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4. Port it into the owning component's `<style>`, or — if it is a real token —
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into `tokens.css`, which **you own**. No other agent may add tokens.
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5. Repeat until the diffs are empty.
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## Constraints
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- Allowed breakpoints are 560 / 800 / 1100 / 1600 / 2200 px.
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`.agents/scripts/check-tokens.mjs` rejects others.
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- Do not delete the file while any legacy page still loads it. Check which
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routes have actually been migrated at the time you run; 20 is the cutover.
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- No raw hex, no `font-size: Npx` outside `tokens.css`.
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- You are also the owner of the ~190 accumulated `/* token-gap: ... */` markers.
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Resolving them is **not** in this brief — do not start. Report the count so it
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can be scheduled.
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## Done when
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- [ ] Screenshot diffs empty at all four widths without `responsive.css`
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- [ ] Ported rules live with the component that needs them, or in `tokens.css`
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- [ ] `responsive.css` deleted, and nothing references it
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- [ ] `pnpm run gate` green; 42 assertions intact
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## Amendment — the screenshot step now actually works
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When this brief was written, `.agents/scripts/visual-regression.mjs` threw
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`playwright ... install its project dependency` for everyone: the browsers were
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cached in `~/.cache/ms-playwright` but the node package was never a dependency.
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Every "screenshots match" checkbox in this plan was unsatisfiable. `playwright`
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is now a devDependency (`c2a046d`) and a headless screenshot has been verified
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to work. **Take the screenshots.** "I read the rules and they look unused" is
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not the proof this brief asks for.
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All eight routes are migrated as of `edd03f9` — `index`, `models`, `agents`,
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`skills`, `summary`, `rules`, `full-guide`, `skills-review`. Screenshot all of
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them, not just `/full-guide/`.
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## Amendment — the token-gap queue is already closed
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The brief says "~190 accumulated `/* token-gap: ... */` markers … do not start".
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Task 02c ran and took them from 154 to **17**. Do not reopen that work either;
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the 17 that remain are deliberate.
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Two things 02c got wrong that you must not repeat. It closed six markers by
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pointing the value at a palette token with a _different_ value — `#5b7098` at
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`var(--accent)` (`#7c78a8`), `#9eb0bb` at `var(--muted)` (`#697b89`) — after its
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own marker comments had recorded "no token matches". That shipped a silent
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redesign the gate could not see. `edd03f9` repaired it by adding exact on-dark
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tokens: `--ink-muted`, `--ink-line`, `--ink-code`, `--accent-paper`,
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`--accent-paper-active`, `--accent-surface`, and four exact-alpha overlays
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`--white-14/23/25/31`. Use those when you need a colour on `--ink` or
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`--accent`; the light-background palette is the wrong family there.
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If you must port a colour or size that has no token, add an **exact** one to
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`tokens.css` — you own it — or leave the raw value under a `token-gap:` marker.
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Never round to a near neighbour.
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## Amendment — how this gets verified
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The gate does not read your output: all 42 assertions in `scripts/verify.mjs`
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read the legacy files, so deleting `responsive.css` and breaking every mobile
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layout passes it cleanly. Before you claim done, diff the **built** CSS
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(`dist/_astro/*.css`) against `main` and enumerate every declaration that
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disappeared. Each one is either present elsewhere or a regression.
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## Attempt 1 stopped short — and the goal as written is not reachable yet
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Preserved as `rejected/15e-attempt-1` (`d2312d7`). Start by reading that diff:
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it ported rules into `ChapterHero`, `FleetDiagram`, `RouteTable`, `WorktreeMap`,
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`LanguageToggle`, `ReadingProgress`, `agents.astro`, `full-guide.astro` and
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`tokens.css`, and it added `pixelmatch`, `pngjs` and `postcss` plus a working
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screenshot-compare harness. Reuse all of it. It never finished the comparison
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loop and never committed on its own.
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It also deleted `responsive.css` while **`full-guide/index.html` still links
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it**. That page is the live site until task 20 cuts over; deleting the
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stylesheet strips it. `src/components/islands/GuideSelector.astro` still
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references it too.
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So the "delete it" checkbox in this brief cannot be honestly ticked before the
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cutover. Do not tick it, and do not delete the file. **The deliverable is
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everything up to the deletion:**
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- Every rule `responsive.css` provides to an Astro route lives with the
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component that needs it, or in `tokens.css`.
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- No `.astro` file and no Astro layout links `responsive.css` any more.
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- `full-guide/index.html` still links it, unchanged, and still renders exactly
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as it does today.
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- A list, in this file, of the rules that remain in `responsive.css` solely for
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the legacy page — that list is the deletion checklist task 20 will execute.
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Amend the "Done when" boxes to match before you start, and say in your final
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report that the file is intentionally still present.
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### One rule to port properly while you are in there
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`.route-meter span` animates `height: var(--score)` — a layout property, which
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task 18 was meant to eliminate. 18 changed it in `responsive.css` and that
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change was reverted (`0bca43c`) because it belongs in the component, not in a
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legacy file. When you port this rule, port it as
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`transform: scaleY(var(--score)); transform-origin: bottom` with `height: 100%`.
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`--score` is set inline as a percentage (`--score:92%`) by `GuideSelector.astro`
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and `full-guide.astro`; a percentage in `scaleY()` is valid and was verified
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rendering correctly at `matrix(1, 0, 0, 0.92, 0, 0)`. Leave the legacy
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`responsive.css` copy of the rule alone.
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## Attempt 3 rejected: two breakpoints were replaced with dead tokens
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Tagged `rejected/15e-attempt-3` (`d5f5514`). The gate passed with 84 assertions
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intact, and the work is still wrong. Recover anything reusable from the tag; do
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not build on it.
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**The disqualifying defect.** `responsive.css` carries
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`@media (max-width: 880px)` — which collapses `.verify-layers` and
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`.verify-cta-grid` to one column and `.verify-intro` to a single column — and
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`@media (max-width: 1050px)`, which narrows `.tree-node` to 145px, puts
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`.tree-detail` on two columns, and collapses `.skill-explorer`. Neither was
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ported. Both are absent from the built CSS:
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```
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grep -oh 'max-width:[0-9]*px' dist/_astro/*.css | sort -u
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```
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returns every other breakpoint and not those two. On the built site the
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verification section stays multi-column down to 560px and the worktree tree
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never narrows.
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What made it look finished is worse than the omission. `audit-ui.mjs` compares
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the built CSS against `.agents/snapshots/built-css-values.json`, so dropping
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those two media queries fails the value contract. Attempt 3 answered that by
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adding
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```css
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/* Retained as exact legacy dimensions for the built-CSS value contract;
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neither is used as a media query. */
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--legacy-audit-width-880: 880px;
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--legacy-audit-width-1050: 1050px;
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```
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Two variables, referenced by nothing, whose only function is to put the strings
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`880px` and `1050px` back into the built sheet so the check that exists to catch
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this exact loss reports success. The comment says so outright. **Port the media
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queries. Never satisfy a value contract with a value nothing uses** — if a check
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is in the way, the check is telling you something.
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**Three more things to fix on the next attempt.**
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1. **No `--raw-<hex>` tokens.** Attempt 3 added roughly fifty of them:
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`--raw-9eabb4: #9eabb4`, `--raw-ffffff2d: #ffffff2d`, and so on. A token
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named after its own value carries no meaning, so it is not a token — it is a
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lookup table that satisfies `check-tokens.mjs` while defeating the point of
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having one. If a ported rule needs a colour that the palette has no name for,
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either it is one of the existing tokens (use it) or it is a genuine gap (name
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it for its role, or leave the literal and add a token-gap marker — see
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`.agents/rules/theming.md`).
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2. **Leave `--white-31` alone.** Attempt 3 rewrote it from
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`rgb(255 255 255 / 31.3725%)` to `#ffffff50` and added a second
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`--white-31-alpha` holding the original. The two are numerically equal; the
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churn reverses task 02c, which set these six on-dark tokens to their exact
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values on purpose, and leaves a duplicate behind.
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3. **Do not commit screenshots.** Attempt 3 added 128 PNGs under
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`.agents/snapshots/15e-before/` and `15e-after/`, 35 MB, to a repository
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whose entire pack is under 400 KB. Take them, compare them, report the
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comparison, and leave them out of the commit.
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**Acceptance, restated.** Every breakpoint in `responsive.css` that serves an
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Astro route appears in the built CSS, in a rule that does the same thing it did
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before:
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```
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diff <(grep -oh '(max\|min)-width:[0-9]*px' responsive.css | sort -u) \
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<(grep -ohE '(max|min)-width:[0-9]*px' dist/_astro/*.css | sort -u)
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```
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Anything only the legacy page needs may be missing from the built sheet — say
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which, and why, in the final report.
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