Delivers ADR-0007 Decision 1: visualization, drag-to-propose and hot-seat
play, at a measured marginal AM-4a cost of zero.
games-ground shipped: 23 third-party crates
cb-render-html: 23 third-party crates
new crates introduced: 0
Measured, not asserted — the survey's own lesson. AM-4a is unmoved at
246,250; own source is 7,636 -> 9,652.
What shipped:
crates/cb-render-html doc.rs (HTML/SVG emission, incl. the relationship
graph), input.rs (pointer facts -> commands),
serve.rs (Guard, Request, loopback bind)
tools/cb-play hotseat.rs + `--serve PORT`
Per ADR-0007 Decision 2 there is NO cb-render-api and NO cb-render-null.
The renderer targets the existing Project trait; the port waits for
stage 2's wgpu implementation to be its second use.
The six controls, all live, all mutation-checked (8 mutations, each red
for its stated reason):
1-3 token / Origin+Sec-Fetch-Site / explicit 127.0.0.1 bind
4 a token-less request is refused, in the unit AND over a real socket
5 JS may not construct commands — the page reports pointer facts, Rust
resolves them against the legal list the aggregate already offered,
and a test asserts the emitted script contains no game vocabulary
6 the coverage gate crosses the language boundary: it walks the
serialized view for leaf paths and requires each token to appear in
the PARSED emitted document, with a test that the parse really is a
parse (script/style contents must not count as rendered)
The gate fired on its author again, on its first run: ground_choices.*.
choice, ground_choices.*.problem and players.*.blame_from were in neither
list. The last is the one worth keeping — an EMPTY vector is a leaf path
of its own, and it now renders as an explicit absence.
Also, a mutation that did not go red: removing the Sec-Fetch-Site arm
alone left the cross-site test green, because the Origin check caught it
independently. Both had to be removed before the control bit. Recorded
because a control that passes for a reason you did not intend has not
been demonstrated.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Four of six challenges conceded; the survey's two main arguments are
replaced rather than clarified.
C1 The survey concluded the sub-100k region was empty without ever
measuring it. It is not empty: tiny-skia fits at 83,956, and the
real windowed floor is fltk at 140,079 — 1.5x corrected headroom,
not 128x. "Two orders of magnitude" is withdrawn.
C1b Following that concession: wgpu+winit is 1,741,979 marginal lines
against a 250,000 target. AM-4a is incompatible with INTENT stage 2
by 7x, and has been since both were written. Raised for the
maintainer; deliberately not decided by this pass.
C2 "Marginal cost zero" was scored on an axis chosen to produce zero,
and the same relocation already flattered sdl2 and fltk in the
survey's own table. One acquisition rule now covers all three, and
it raises two candidates' cost rather than lowering the winner's.
C3 The survey contradicted itself on the second-use rule. cb-render-api
and cb-render-null are withdrawn; cb-render-html ships against the
existing Project trait, and the port waits for stage 2's second use.
C6 The candidate measurements did carry a positive control. The C1
batch did not — it copied dep-weight.py's measurement function
without its guards — and was re-measured under them before being
cited. Figures reproduced unchanged. The HTML row is relabelled
0 by construction, not by measurement.
C4/C5 become six controls binding on ADR-0007.
The recommendation stands. The reasoning that reached it does not.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Measured with dep-weight.py's own method so the numbers subtract.
Marginal cost against the 23-crate base graph, not headline size:
egui+eframe 2,782,849 742x headroom
wgpu+winit 1,741,979 465x
softbuffer+tiny-skia 1,147,081 306x
ratatui+crossterm 1,067,013 285x
macroquad 480,501 128x
HTML/SVG emission 0 0x
ratatui costing more than macroquad is the surprise: rustix pulls
linux-raw-sys at 479,901 lines.
Separately, AM-4a counts proc-macro crates that never reach a binary:
89,048 lines, 36.2% of the shipped-runtime figure, syn alone 66,916.
Real headroom is 92,798, not the 3,750 this repo has been citing.
The recommendation is unchanged by that correction — macroquad is 5.2x
over even at 92,798 — which is the only condition under which a survey
may propose correcting a number in its own favour. The metric fix is
filed separately, not bundled with the decision it unblocks.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
