agentmods.dev

SidewalkWebpage css.instructions.md

A set of project-specific rules for reviewing CSS, the code that controls a webpage's appearance. It focuses on using shared colour and typography tokens and scaling the fixed dimensions of certain tool interfaces.

In plain words
What is it for?
Use it to review CSS for token usage, correct font handling, digit rendering, and scaled spacing, sizes, borders, and radii in Explore, Validate, and overlay interfaces.
Why use it?
It catches styling that can drift from the project's design system, such as hardcoded colours, hand-built font settings, or numbers shown in the wrong typeface. It also flags dimensions that may not scale with the interface.

Instructions file for GitHub Copilot

104 3d ago A scan 252 tokens original MIT
View the source file ProjectSidewalk/SidewalkWebpage
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/projectsidewalk/sidewalkwebpage/css
Clone the repo
git clone --depth 1 https://github.com/ProjectSidewalk/SidewalkWebpage

Made for: GitHub Copilot.

Per session 252 This file is loaded in full into every session.
When invoked 252 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00252 $0.00252
Opus 5 $0.00126 $0.00126
Sonnet 5 $0.00050 $0.00050
Haiku 4.5 $0.00025 $0.00025

Measured 2d ago against content hash cf0104dd4320, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

SidewalkWebpage css.instructions.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.github/instructions/css.instructions.md · 18 lines

What it actually says

CSS review

  • Design tokens (main.css :root): colors via --color-*; type via composite --text-* font shorthands (font: var(--text-body-regular);) — not raw --font-* plus hand-picked size/weight. Flag hardcoded hex colors or hand-assembled font stacks where a token fits.
  • Never set numbers in the accent font (Raleway). It uses old-style figures that misalign; anything rendering digits (counts, stats, timers, %, dates) gets a primary-font --text-* token, even inside an accent heading. Flag digits in a Raleway/--font-accent token.
  • Tool UI scaling: for Explore/Validate/overlay UI, every fixed dimension (padding, gap, width/height, border width/radius, raw font-size) must be calc(<n>px * var(--ui-scale, 1)). --text-* tokens already bake it in. Flag bare px. Fixed page chrome (navbar) is exempt.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 18 lines · 252 tokens per session scan A cf0104dd4320

Subscribe to this mod's changes

SidewalkWebpage css.instructions.md is an instructions file published in the GitHub repository ProjectSidewalk/SidewalkWebpage (104 stars, last pushed 3d ago), licensed MIT. It adds 252 tokens to every session, about $0.0013 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Code reviewFrontendaccessibilitygoogle-streetviewmapillaryopenstreetmaposmsidewalk
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