What is figma-flutter-pixel-diff?

A visual comparison workflow for Flutter screens designed in Figma. It runs the app, captures a stable screenshot, retrieves the matching Figma screenshot, and compares the images by pixels, including a heatmap and regional results.

Checking Flutter pages against Figma designs, measuring visual differences, and locating mismatched regions.

It shows where the implemented screen differs from the design instead of relying only on visual inspection.

figma-flutter-pixel-diff — Skill for Claude Code by kane313

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.

Any agent

npx skills add kane313/flutter-figma-skills --skill figma-flutter-pixel-diff

Clone the repo

git clone --depth 1 https://github.com/kane313/flutter-figma-skills

Made for: Claude Code.

Or install flutter-figma-reproduce, the plugin that ships this one along with the rest of its 9 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/kane313/flutter-figma-skills/figma-flutter-pixel-diff/github.svg)](https://agentmods.dev/skills/kane313/flutter-figma-skills/figma-flutter-pixel-diff)

Your own site

<a href="https://agentmods.dev/skills/kane313/flutter-figma-skills/figma-flutter-pixel-diff"><img src="https://agentmods.dev/badge/skills/kane313/flutter-figma-skills/figma-flutter-pixel-diff/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/kane313/flutter-figma-skills/figma-flutter-pixel-diff"><img src="https://agentmods.dev/badge/skills/kane313/flutter-figma-skills/figma-flutter-pixel-diff.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 121 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 953 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00121	$0.00953
Opus 5.5	$0.00048	$0.00381
Sonnet 5.5	$0.00024	$0.00191
Haiku 4.5	$0.00012	$0.00095

Measured 2mo ago against content hash e3d26501c99e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

figma-flutter-pixel-diff 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 2mo 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.

plugins/flutter-figma-reproduce/skills/figma-flutter-pixel-diff/SKILL.md · 79 lines

The source is not reproduced here

No licence file

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

references/patrol-bridge.md 5.7 KB

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.

2mo ago First seen · 79 lines · 121 tokens per session scan A e3d26501c99e

Subscribe to this mod's changes

figma-flutter-pixel-diff is a skill published in the GitHub repository kane313/flutter-figma-skills (4 stars, last pushed 5mo ago), with no licence file. It adds 121 tokens to every session and 953 once invoked, about $0.0005 per session on Opus 5.5. 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 2026-08-31.

Design and UX E2E testing Testing

figma-flutter-pixel-diff next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
figma-flutter-pixel-diffkane313/flutter-figma-skills	Skill	4	5mo ago	none	A	121	Claude Code
qa-test-plannerdavila7/claude-code-templates	Skill	33k	yesterday	MIT	A	34	Claude Code, Codex
critiqueplugin87/ux-ui-agent-skills	Skill	3.1k	10d ago	MIT	A	37	Claude Code
testing-coachCommunity-Access/accessibility-agents	Skill	435	8d ago	MIT	A	19	Claude Code, Codex
design-shipyonatangross/orchestkit	Skill	299	yesterday	MIT	A	50	Claude Code
visual-validationalinaqi/maggy	Skill	711	24d ago	MIT	A	23	Claude Code
shaft-accessibility-testingShaftHQ/SHAFT_ENGINE	Skill	418	yesterday	MIT	A	31	Claude Code, Codex