v2.9.6

The kit is an MCP server now. Any MCP client can run its gates, not just
read its doctrine.

claude mcp add ux-ui-gates -- npx -y --package=ux-ui-agent-skills ux-ui-mcp

Six tools: list_gates, run_gate, review_ui for measuring, and
get_doctrine, get_design_system, get_tokens for the rules and the source
to build from. Doctrine before generating, review after.

AGENTS.md already let Codex, Cursor and Copilot read the doctrine. This
lets any client run the 52 gates, which reading cannot do. Plenty of things
describe good UI; very little tells you afterwards that the contrast you shipped
is 3.9:1 on hover.

It speaks JSON-RPC directly rather than through an SDK, because this package
ships "dependencies": {} and says so on its front page. MCP is JSON-RPC 2.0
over stdio and a tools-only server needs four methods.

What it refuses to do is the point: it returns what the gates printed, unedited,
with their exit codes. 0 looked and found nothing, 1 found something, 2 could
not look - never a pass. DS_REQUIRE_BROWSER=1 is set on every call so a
render gate with no browser fails rather than printing SKIPPED and exiting 0. It
never summarises a gate or produces a number a gate did not produce.

node mcp/server.mjs --selftest drives the real handshake and every tool.
Details in docs/MCP.md.

A hook could block you over another project's files. Under a plugin install
the receipts directory is CLAUDE_PLUGIN_DATA, shared by every project on the
machine, and CLAUDE_SESSION_ID is unset in a claude -p run - so every such
run wrote to one ledger and read the others' edits. A session in one directory
was told that ten files in an unrelated one were unmeasured. The ledger is keyed
by project and session now.

Screen economy is a gate. verify_screen_economy.mjs - media bounded, no
large hollow boxes, the first screen carries a heading and a way to act, images
sized, nothing animating forever. Thresholds live in tokens/sizing.json -> screen, not in the script. The gate count is 52.

Fixing the doctrine came first, because it taught the opposite in four places:
"bento sizing" as the answer to repeated cards, a full-bleed card image, a
screen-filling hero archetype, and a full-bleed hero as a layout option. A named
system never overrides the rule now - nike and spacex keep their identity and
get their media capped, and apply-aesthetic states the adaptation.

It found what nothing else could. crm.html at 390px: a grid track collapsed to
6px while its neighbours held their floor, so three KPI panels rendered 160x1494

• stat cards a page and a half tall on a phone, with nothing overflowing and
  nothing clipped, so every existing gate passed it. checkout.html had no h1
  at all. Twelve operational consoles had no way to act on the first phone screen,
  and soc.html had no interactive element in the console at all; the counts in
  their top bars are links to what they count now.

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