Web Application Testing
anthropics/skills
Tests local web applications with Python Playwright scripts, checking frontend behavior, capturing screenshots and reading browser console logs.
A skill your agent uses when behaviour must be proven in the running application: journeys, screenshots for visual checks, external effects, or reproducing a bug.
Install Verify App
$ npx skills add greenfield-inc/Pane --skill verify-app -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install greenfield-inc/Pane verify-app --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/greenfield-inc/Pane.git skills-src && mkdir -p .claude/skills && cp -r skills-src/main/src/services/paneChatBundle/skills/verify-app .claude/skills/verify-app && rm -rf skills-srcUse ~/.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/
Install the "verify-app" agent skill from https://github.com/greenfield-inc/Pane/tree/main/main/src/services/paneChatBundle/skills/verify-app into .claude/skills/verify-app/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "verify-app", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/greenfield-inc/Pane/tree/main/main/src/services/paneChatBundle/skills/verify-appType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add greenfield-inc/Pane --skill verify-app -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install greenfield-inc/Pane verify-app --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/greenfield-inc/Pane.git skills-src && mkdir -p .agents/skills && cp -r skills-src/main/src/services/paneChatBundle/skills/verify-app .agents/skills/verify-app && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "verify-app" agent skill from https://github.com/greenfield-inc/Pane/tree/main/main/src/services/paneChatBundle/skills/verify-app into .agents/skills/verify-app/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "verify-app", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add greenfield-inc/Pane --skill verify-app -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install greenfield-inc/Pane verify-app --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/greenfield-inc/Pane.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/main/src/services/paneChatBundle/skills/verify-app .cursor/skills/verify-app && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "verify-app" agent skill from https://github.com/greenfield-inc/Pane/tree/main/main/src/services/paneChatBundle/skills/verify-app into .cursor/skills/verify-app/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "verify-app", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/greenfield-inc/Pane.git --path main/src/services/paneChatBundle/skills/verify-app--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add greenfield-inc/Pane --skill verify-app -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install greenfield-inc/Pane verify-app --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/greenfield-inc/Pane.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/main/src/services/paneChatBundle/skills/verify-app .gemini/skills/verify-app && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "verify-app" agent skill from https://github.com/greenfield-inc/Pane/tree/main/main/src/services/paneChatBundle/skills/verify-app into .gemini/skills/verify-app/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "verify-app", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install greenfield-inc/Pane verify-appInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add greenfield-inc/Pane --skill verify-app -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/greenfield-inc/Pane.git skills-src && mkdir -p .github/skills && cp -r skills-src/main/src/services/paneChatBundle/skills/verify-app .github/skills/verify-app && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "verify-app" agent skill from https://github.com/greenfield-inc/Pane/tree/main/main/src/services/paneChatBundle/skills/verify-app into .github/skills/verify-app/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "verify-app", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add greenfield-inc/Pane --skill verify-app -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install greenfield-inc/Pane verify-app --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/greenfield-inc/Pane.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/main/src/services/paneChatBundle/skills/verify-app .opencode/skills/verify-app && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "verify-app" agent skill from https://github.com/greenfield-inc/Pane/tree/main/main/src/services/paneChatBundle/skills/verify-app into .opencode/skills/verify-app/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "verify-app", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
verify-app- GitHub stars
- 522
- Token cost
- ~914 tokens
- SKILL.md length
- 477 words
- Files
- 1
- Skills in repo
- 35
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
A skill your agent uses when behaviour must be proven in the running application: journeys, screenshots for visual checks, external effects, or reproducing a bug.
- Works in 4 steps: Confirm the target: branch or commit… → Check tools and sign-ins before starting… → Use test-mode keys, test accounts, local… → …
- Behaviour must be proven in the running application: journeys
- SKILL.md covers Set up, Drive the journeys, Verify outside the browser and Reproducing a bug, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Verify App is an agent skill from greenfield-inc/Pane. Use when behaviour must be proven in the running application: journeys, screenshots for visual checks, external effects, or reproducing a bug. Never fixes.
Its SKILL.md is about 910 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 Testing & QA. The repository describes itself as: Terminal-first, open-source AI agent manager for any CLI agent (agent agnostic), any OS (mac, windows, linux). The Open-Source Agentic Development Environment for running…
When your agent uses it
- Behaviour must be proven in the running application: journeys
- Screenshots for visual checks
- External effects
- Reproducing a bug
Example prompts
- “/verify-app”
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Confirm the target: branch or commit (including any uncommitted changes), worktree, journey numbers or check names, exact URL or route…
- Check tools and sign-ins before starting anything long: browser automation, the dev server or simulator, test accounts, and any connector…
- Use test-mode keys, test accounts, local containers, and staging-safe endpoints. Never touch production unless the person explicitly asked.
- Reuse the running app and authenticated session whenever possible. Start only the missing authorized services, record them, and keep to…
What it can do on your machine
Read from SKILL.md and the folder at commit c038a7b. 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
Verify App loads about 914 tokens when it runs. Until then it costs about 42 tokens; SKILL.md has 477 words of instructions outside code blocks.
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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 477 words (~914 tokens).
“Prove what works with evidence, say what you could not determine, and leave a trail someone else can follow. A check you could not run is undetermined. It is never a pass.”
- name
- verify-app
Files
Just SKILL.md in main/src/services/paneChatBundle/skills/verify-app of greenfield-inc/Pane.
Open the folder on GitHubat commit c038a7b
Compare with similar skills
Verify App 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Verify App this skillgreenfield-inc/Pane | 522 | — | ~914 | Automated safety check: Pass | Custom licence | |
| Web Application Testinganthropics/skills | 180k | 51 repos | ~966 | Automated safety check: Pass | Apache-2.0 | |
| Diagnosing Bugsfossasia/eventyay-interpretation | 1.6k | 32 repos | ~2.1k | Automated safety check: Pass | Apache-2.0 | |
| TDDpietheinstrengholt/rssmonster | 564 | 30 repos | ~906 | Automated safety check: Pass | MIT | |
| TDD WorkflowhellangleZ/burn-in-cceverywhere-ralph | 112 | 11 repos | ~2.4k | Automated safety check: Pass | None | |
| TDDsanity-io/sanity | 6.4k | 20 repos | ~1k | Automated safety check: Pass | MIT |
Similar skills
- Official
Diagnosing Bugs
fossasia/eventyay-interpretation
Diagnosis loop for hard bugs and performance regressions. An agent skill from fossasia/eventyay-interpretation.
TDD
pietheinstrengholt/rssmonster
Test-driven development. An agent skill from pietheinstrengholt/rssmonster.
TDD Workflow
hellangleZ/burn-in-cceverywhere-ralph
A skill your agent uses when writing new features, fixing bugs, or refactoring code.
- Official
TDD
sanity-io/sanity
Test-driven development with red-green-refactor loop. An agent skill from sanity-io/sanity.
Context Driven Development
Ibrahim-3d/orchestrator-supaconductor
A skill your agent uses when working with Conductor's context-driven development methodology, managing project context artifacts, or understanding the relationship between product.md, tech-stack.md…
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Related
Categories
Questions about Verify App
What does Verify App do?
A skill your agent uses when behaviour must be proven in the running application: journeys, screenshots for visual checks, external effects, or reproducing a bug. Verify App is an agent skill from greenfield-inc/Pane. Use when behaviour must be proven in the running application: journeys, screenshots for visual checks, external effects, or reproducing a bug.
When should I use Verify App?
Verify App fits situations like: behaviour must be proven in the running application: journeys; screenshots for visual checks; external effects; reproducing a bug.
How do I install Verify App in Claude Code?
Run `npx skills add greenfield-inc/Pane --skill verify-app -a claude-code`. Or copy the skill folder (main/src/services/paneChatBundle/skills/verify-app in greenfield-inc/Pane) into .claude/skills/verify-app in your project. Claude Code loads it when a task matches its description.
How do I install Verify App in Codex?
Run `npx skills add greenfield-inc/Pane --skill verify-app -a codex`. Or copy the skill folder (main/src/services/paneChatBundle/skills/verify-app in greenfield-inc/Pane) into .agents/skills/verify-app in your project. Codex loads it when a task matches its description.
Can I use Verify App 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 greenfield-inc/Pane --skill verify-app -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/verify-app, .gemini/skills/verify-app, .github/skills/verify-app and .opencode/skills/verify-app in your project.
What does Verify App need to run?
SKILL.md names no scripts, command-line tools or credentials: Verify App is instructions for the agent only.
Does Verify App 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 Verify App 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 Verify App use?
Verify App has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Verify App use?
About 914 tokens (SKILL.md is roughly 3.7k 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 Verify App?
Skills that share tags, products or a category with Verify App: Web Application Testing (anthropics/skills, 180k stars), Diagnosing Bugs (fossasia/eventyay-interpretation, 1.6k stars), TDD (pietheinstrengholt/rssmonster, 564 stars) and TDD Workflow (hellangleZ/burn-in-cceverywhere-ralph, 112 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Verify App?
greenfield-inc (a GitHub organization) maintains it in greenfield-inc/Pane, which has 522 GitHub stars. The repository holds 35 skills in this directory. The repository was last updated on October 9, 2026.
Source: greenfield-inc/Pane on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.