Agent skill

Screenshot Analysis

by A-EVO-Lab in A-EVO-Lab/a-evolve

How to interpret accessibility tree elements and correlate them with screenshot regions for accurate GUI interaction.

No licenceAuto-check passedFrontend & Design

Install Screenshot Analysis

skills CLI
$ npx skills add A-EVO-Lab/a-evolve --skill screenshot-analysis -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install A-EVO-Lab/a-evolve screenshot-analysis --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/A-EVO-Lab/a-evolve.git skills-src && mkdir -p .claude/skills && cp -r skills-src/seed_workspaces/osworld/skills/screenshot-analysis .claude/skills/screenshot-analysis && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
screenshot-analysis
GitHub stars
806
Token cost
~428 tokens
SKILL.md length
179 words
Files
1
Skills in repo
17
Repo updated
First seen
Licence
None found

At a glance

How to interpret accessibility tree elements and correlate them with screenshot regions for accurate GUI interaction.

  • Tasks that involve Accessibility
  • SKILL.md covers Reading the Accessibility Tree, Coordinate mapping, Element roles cheat sheet and When a11y_tree is insufficient, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Screenshot Analysis is an agent skill from A-EVO-Lab/a-evolve. How to interpret accessibility tree elements and correlate them with screenshot regions for accurate GUI interaction.

Its SKILL.md is about 430 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Frontend & Design, covering Accessibility. The repository describes itself as: The official repository of "Position: Agentic Evolution is the Path to Evolving LLMs".

When your agent uses it

  • Tasks that involve Accessibility

Example prompts

  • “/screenshot-analysis”

What it can do on your machine

Read from SKILL.md and the folder at commit 18ba996. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Screenshot Analysis loads about 428 tokens when it runs. Until then it costs about 34 tokens; SKILL.md has 179 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~34
When it runs · the whole SKILL.md, loaded when a task matches
~428

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 179 words (~428 tokens).

“The a11y_tree is your primary guide for finding interactive elements:”

— opening of SKILL.md by A-EVO-Lab
name
screenshot-analysis

Read the full SKILL.md on GitHub

Files

Just SKILL.md in seed_workspaces/osworld/skills/screenshot-analysis of A-EVO-Lab/a-evolve.

Open the folder on GitHubat commit 18ba996

Compare with similar skills

Screenshot Analysis next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Screenshot Analysis compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Screenshot Analysis this skillA-EVO-Lab/a-evolve806—~428Automated safety check: PassNone
Web Interface Guidelines Reviewervercel-labs/openreview1.7k98 repos~308Automated safety check: PassNone
Accessibility Reviewmarkmead/hyperui12k1 repos~1.1kAutomated safety check: PassMIT
Web Animation DesignbaptisteArno/typebot.io11k2 repos~2.7kAutomated safety check: PassCustom licence
Accessibility Fixeribelick/ui-skills9.5k4 repos~1.2kAutomated safety check: PassMIT
Wcag Audit PatternsvmDeshpande/ai-agent-automation17811 repos~610Automated safety check: PassApache-2.0

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Questions about Screenshot Analysis

What does Screenshot Analysis do?

How to interpret accessibility tree elements and correlate them with screenshot regions for accurate GUI interaction. Screenshot Analysis is an agent skill from A-EVO-Lab/a-evolve. How to interpret accessibility tree elements and correlate them with screenshot regions for accurate GUI interaction.

When should I use Screenshot Analysis?

Screenshot Analysis fits situations like: tasks that involve Accessibility.

How do I install Screenshot Analysis in Claude Code?

Run `npx skills add A-EVO-Lab/a-evolve --skill screenshot-analysis -a claude-code`. Or copy the skill folder (seed_workspaces/osworld/skills/screenshot-analysis in A-EVO-Lab/a-evolve) into .claude/skills/screenshot-analysis in your project. Claude Code loads it when a task matches its description.

How do I install Screenshot Analysis in Codex?

Run `npx skills add A-EVO-Lab/a-evolve --skill screenshot-analysis -a codex`. Or copy the skill folder (seed_workspaces/osworld/skills/screenshot-analysis in A-EVO-Lab/a-evolve) into .agents/skills/screenshot-analysis in your project. Codex loads it when a task matches its description.

Can I use Screenshot Analysis in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add A-EVO-Lab/a-evolve --skill screenshot-analysis -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/screenshot-analysis, .gemini/skills/screenshot-analysis, .github/skills/screenshot-analysis and .opencode/skills/screenshot-analysis in your project.

What does Screenshot Analysis need to run?

SKILL.md names no scripts, command-line tools or credentials: Screenshot Analysis is instructions for the agent only.

Does Screenshot Analysis access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Screenshot Analysis safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Screenshot Analysis use?

No licence was found for Screenshot Analysis or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Screenshot Analysis use?

About 428 tokens (SKILL.md is roughly 1.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Screenshot Analysis?

Skills that share tags, products or a category with Screenshot Analysis: Web Interface Guidelines Reviewer (vercel-labs/openreview, 1.7k stars), Accessibility Review (markmead/hyperui, 12k stars), Web Animation Design (baptisteArno/typebot.io, 11k stars) and Accessibility Fixer (ibelick/ui-skills, 9.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Screenshot Analysis?

A-EVO-Lab (a GitHub organization) maintains it in A-EVO-Lab/a-evolve, which has 806 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on August 22, 2026.

Source: A-EVO-Lab/a-evolve on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.