bike_index: Skill for Claude Code

.claude/skills/frontend-screenshots/SKILL.md

frontend-screenshots is a skill for Claude Code from bikeindex/bike_index. It costs 208 tokens per session (4,981 once invoked), scanned A, original, AGPL-3.0.

A workflow for capturing desktop and mobile screenshots of Bike Index pages from a local development server. It uses a seeded test user so personal information is not included in the images.

In plain words
What is it for?
Use it for pull request documentation, bug reproductions, before-and-after comparisons, and design reviews of local pages.
Why use it?
It makes visual review and bug reporting repeatable while reducing the risk of exposing private user data.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

This is bikeindex/bike_index's own configuration. It tells Claude Code how to work on bike_index itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything bike_index configures →

Reuse

Borrowing it

Nothing to install: this file belongs to bikeindex/bike_index. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/bikeindex/bike_index/main/.claude/skills/frontend-screenshots/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/bikeindex/bike_index

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for frontend-screenshots

README.md
[![agentmods](https://agentmods.dev/badge/skills/bikeindex/bike_index/frontend-screenshots/github.svg)](https://agentmods.dev/skills/bikeindex/bike_index/frontend-screenshots)
Your own site
<a href="https://agentmods.dev/skills/bikeindex/bike_index/frontend-screenshots"><img src="https://agentmods.dev/badge/skills/bikeindex/bike_index/frontend-screenshots/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for frontend-screenshots

Your own site · 80×15
<a href="https://agentmods.dev/skills/bikeindex/bike_index/frontend-screenshots"><img src="https://agentmods.dev/badge/skills/bikeindex/bike_index/frontend-screenshots.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 208 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,981 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 5.1 $0.00208 $0.04981
Opus 5 $0.00104 $0.02491
Sonnet 5 $0.00042 $0.00996
Haiku 4.5 $0.00021 $0.00498

Measured 2d ago against content hash fe155065025b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

frontend-screenshots scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- `curl -fs "$BASE_URL/" >/dev/null` — if it isn't, **stop and ask the user to start it**. `bin/env` resolves `$DEV_PORT`/`$BASE_URL` from the workspace ID, so the bin/dev the user starts will bind to the same port and D
.claude/skills/frontend-screenshots/SKILL.md · 176 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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 Changed fe155065025b
  2. 3d ago Changed eb80970cdbec
  3. 9d ago First seen · 176 lines · 208 tokens per session scan A 1e05a1971961

Subscribe to this mod's changes

frontend-screenshots is a skill published in the GitHub repository bikeindex/bike_index (309 stars, last pushed yesterday), licensed AGPL-3.0. It adds 208 tokens to every session and 4,981 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Related

Other skills, from other repositories

browserwing-executor

Control browser automation through HTTP API. Supports page navigation, element interaction (click, type, select), data extraction, accessibility snapshot analysis, screenshot, JavaScript execution, and batch operations.

MemTensor/MemOS · 42 tokens

figma-design-review

Critique and review Figma designs to ensure alignment with Chromium codebase components, tokens, and structure. Use when the user asks to critique, review, or audit a design, check alignment with code, or compare a Figma node against component specifications or coding standards.

chromium/chromium · 59 tokens

figma-to-views-json

Recreate Figma design frames as prototype-ready Chromium Views JSON script following Chrome's native Views architecture, component guidelines, and color/shape token mappings. Use when asked to create C++ Views Prototype JSON script from a Figma frame URL.

chromium/chromium · 55 tokens

figma-to-webui

Recreate Figma design frames as production-level Chromium WebUI code following Chrome's Lit-element architecture and styling guidelines. Use when asked to create WebUI code from a Figma frame URL.

chromium/chromium · 44 tokens

figma-to-views

Recreate Figma design frames as production-ready Chromium C++ Views code following Chrome's native Views architecture, component guidelines, and color/shape token mappings. Use when asked to create C++ Views code from a Figma frame URL.

chromium/chromium · 53 tokens

chrome-cdp

Drive a headless Chrome over the Chrome DevTools Protocol (CDP) for browser QA — navigate, click, fill forms, read the DOM/accessibility tree, screenshot, and assert. Use whenever a task requires loading a web page and interacting with it like a user. Chrome is launched by a bash step (recipe below); this skill…

mattzcarey/shippie · 91 tokens