Design Fleet
v7.0.1
The complete toolkit to contract, build, and review UI with your agent — a machine-checkable VISION.md, a deterministic lint that blocks bad edits before they land, and a taste judge that must prove itself before it may gate. For Cursor and Claude Code.
npx design-fleet init --target=both
## Tokens --brand: oklch(55% 0.19 42) --ink: oklch(22% 0.006 80) ## Motion press 150ms · modal 200ms · ease-out ## Error copy “We couldn’t save your changes — check your connection and try again.”
$ npx design-fleet lint src/ ✗ src/pricing.css — 3 violations T1 “Arial” as the primary font V5 #ffffff ground, #000000 text V7 padding: 13px — off the scale agent fixes the values, retries… ✓ exit 0 — all checks passed
The pricing page every agent ships on autopilot. Drag the divider to wipe the governed version across it. The readout is real: npx design-fleet lint exits 1 on the before and 0 on the after, and design-review adds what no regex can check.
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Every plan includes all core features for 14 days.
The other checks catch the rest of the autopilot repertoire — side-tab borders, overshoot easing, the stock “premium” palette. The full list is in the docs; the whole loop is on the system page.
Every claim runs through the eval harness with an independent judge — different models; the harness refuses to self-grade. What the fleet promises, it measures.
[ THE CONTRACT, ENFORCED ]
Hygiene stays sane. The contract pins your tokens, type ramp, exact error copy and timings; the deterministic lint enforces them in CI and exits 1 on drift; reconcile catches the doc drifting from reality. Hard rails, not vibes.
[ THE ADMISSION RULE ]
Knowledge that's actually knowledge. New content needs a failing cold-baseline eval to get in. What the model already does is cut; what it reliably misses is kept sharp.
[ NATIVE PER PLATFORM ]
The harness is proper. Cursor gets real .mdc rules; Claude Code gets launch-loaded paths:-scoped rules that survive compaction; the contract is wired by the CLI, never hand-glue.
[ BUILDER SKILL, JUDGED BLIND ]
+41ppplacebo-controlled · judge noise 1.6pp
[ THE TASTE GATE ]
0.38the critique may only gate once it separates good from slop by this margin
[ THE ADMISSION LEDGER — 7.0 RUNS ]
| knowledge item | cold | fleet | Δ | verdict |
|---|---|---|---|---|
| burned-font trap — the “alternatives to Inter” that became the new tells | 20% | 80% | +60pp | admitted |
| flip test — features disguised as outcome goals | 44% | 100% | +56pp | admitted |
| gesture physics — velocity handoff, rubber-banding | 67% | 94% | +28pp | admitted |
@starting-style entry animations | 42% | 67% | +25pp | admitted |
| size-specific tracking & inverse leading | 100% | — | 0pp | retired |
the gate rejects our own content: a 100% cold baseline never ships. Full ledger: ABSORPTION.md in the repo.
Install once and your existing agent — not a separate bot — gains four roles that never grade their own work. Every role's uplift is measured against a cold frontier model by an independent judge.
design-contractInterviews you for taste once, audits the codebase, and writes VISION.md — the rails every edit must respect.
frontend-designShips distinctive, production-grade UI inside the rails — and owns motion: easing, springs, gesture physics, View Transitions.
design-reviewTwo altitudes, never blended: a deterministic lint floor that exits 1, and a taste critique that may only gate once calibrated.
animation-vocabularyThe namer: “the bouncy thing when a popover opens” → Pop in — so your next prompt asks for exactly the right motion.
VISION.md› design-taste› package defaults — the contract wins wherever it speaks
New in 7.0, experimental and opt-in: a Claude Code PreToolUse hook runs the same ten checks against proposed file content — and blocks writes that would introduce new violations. Pre-existing debt never blocks an unrelated edit.
tool: Write · src/components/Card.css ✗ blocked (exit 2) — 2 new violations V7 padding: 13px — off the spacing scale V1 box-shadow: rgba(0,0,0,.4) — pure black agent fixes the values, retries… ✓ write allowed — no new violations
New violations only. Findings are compared against the file's prior state — legacy debt never blocks an unrelated edit.
Fail-open, by design. Malformed input, a crash, a timeout — every error path allows the write. A hook bug must never block work.
Loop-breaker. Three identical denials downgrade to a warning. The agent can't get stuck arguing with a regex.
node node_modules/design-fleet/bin/hook.mjs --install · hook docs
Five minutes to install, five more to understand — 10 rules, 4 skills, a deterministic lint and a machine-checkable contract, for Cursor and Claude Code.
npx design-fleet init --target=both