Vitor PamplonaandClaude Opus 5.5
d6a5382e58
Codex (run locally) added AGENTS.md, .agents/skills symlinks and a .codex push hook; this makes both agents read one copy of everything: - AGENTS.md is now the single source of the project rules. .claude/CLAUDE.md imports it with @../AGENTS.md and keeps only Claude-specific notes; the res/ guide moves to amethyst/src/main/res/AGENTS.md the same way. - .agents/skills/<name> are symlinks to .claude/skills/<name>, never copies. - The push checks move to tools/agent-hooks/, run by .claude/settings.json, .codex/hooks.json (matched to Bash and the PR tool) and CI. The Codex hook now also runs spotless. The shared gate accepts Codex's payloads. - New agent_config_check.py (pre-push and CI) enforces the layout: symlinks, CLAUDE.md imports, AGENTS.md under Codex's 32 KiB doc limit, description length, the combined skill-list budget, and that every path a skill cites exists. - Fixes the Compose-escaping pre-push hook, which exited 1 on a hit and so never blocked a push (PreToolUse blocks only on exit 2). - Live docs point at AGENTS.md instead of .claude/CLAUDE.md. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Amethyst icon font
Builds amethyst_icons.ttf from the Kotlin ImageVector icons in
commonsUI/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/icons/.
Why
Icon(imageVector = …) calls rememberVectorPainter, and a VectorPainter
rasterises its paths into a cached graphics layer per instance. A feed therefore
re-rasterised the same handful of glyphs once for every card scrolled in. A font glyph
is a blit from the shared text atlas instead, shared across every call site in the app
for free — no CompositionLocal plumbing, no per-screen scoping.
Measured on the uniform-corpus macrobenchmark (SM-T220, three arms, 0.2% noise floor):
| approach | frame P90 | overrun P90 | artwork |
|---|---|---|---|
one shared VectorPainter per icon |
−8.2% | −14.2% | unchanged |
| MaterialSymbols glyph substitutes | −10.4% | −16.0% | changes |
| this font | −10.7% | −17.4% | unchanged |
| ceiling: draw no icons at all | −12.7% | −22.9% | n/a |
Usage
pip install fonttools
python3 tools/icon-font/build_icon_font.py <icons-dir> <out.ttf> <out.kt>
See the "Amethyst's own icons are also a font" section of AGENTS.md for the
mandatory regeneration step and why both outputs must be committed together.
How it works
The ImageVector builder DSL maps 1:1 onto SVG path commands (moveTo → M,
curveToRelative → c, …; none of the icons use arcTo), so the script extracts the
path data, emits an SVG d string, and draws it into a TrueType glyph via fontTools —
converting cubics to quadratics and flipping the y axis, since SVG grows downward and
font outlines grow upward from the baseline.
Font metrics deliberately mirror the bundled material_symbols_outlined.ttf
(unitsPerEm 960, ascent 1056, descent −96, advance 960) so the glyphs align with
existing MaterialSymbols call sites and Icon() sizing. Generated outlines land within
a few units of Google's own: our Like spans (78,94)–(882,851), their heart
(80,120)–(880,854).
An icon whose path data the parser cannot reach is reported and skipped rather than
silently emitted empty; it must keep using its ImageVector.