Test
Manual UI testing with Chrome browser - explore your app while errors are
- Type
- Slash Command
- Repository
- jeremylongshore/tons-of-skills-marketplace
- GitHub stars
- 2.8k
- License
- MIT
- Repo last updated
- Sep 27, 2026
- Source file
- plugins/community/sprint/commands/test.md
What Test is
Test is a slash command published in the jeremylongshore/tons-of-skills-marketplace repository on GitHub, which has about 2.8k stars. The repository describes itself as: “Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com.”
A slash command is a reusable prompt saved as a markdown file and run by typing its name after a slash. In Claude Code, custom commands have been merged into skills: a file in .claude/commands/ and a skill folder in .claude/skills/ both create the same kind of command, and existing command files keep working.
Test gives you a repeatable way to run the same instructions without retyping them, optionally with arguments.
How to install Test
Claude Code
- Download test.md from the repository.
- Save it to ~/.claude/commands/ (all projects) or .claude/commands/ (one project). As a skill, you can instead save it as ~/.claude/skills/<name>/SKILL.md.
- Run it by typing / followed by its name, with arguments such as [url].
Claude Cowork
- Turn the command into a skill: create a folder with the file saved as SKILL.md and zip it.
- In Customize → Skills, click +, then upload the ZIP.
- Run it from any task with / and the skill name.
New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.
Inside the source file
An excerpt from plugins/community/sprint/commands/test.md, shared under the repository's MIT license. Read the full file on GitHub.
You are launching a manual UI testing session using Chrome browser.
This is a standalone command - it does NOT run the full sprint workflow. Use this when you want to:
- Quickly explore your app in a real browser
- Manually test features while console errors are captured
- Debug UI issues interactively
- Feed observations into the next sprint (reports are saved to the sprint folder)
Workflow
Step 0: Locate Sprint Directory
Find the current sprint directory:
ls -d .claude/sprint/*/ 2>/dev/null | sort -V | tail -1If no sprint exists, create the first one:
mkdir -p .claude/sprint/1Store the sprint directory path (e.g., .claude/sprint/1/) for saving the report later.
Step 1: Determine Frontend URL
Check for URL in this order:
- Command argument (e.g., /sprint:test http://localhost:8080)
- .claude/project-map.md - look for frontend URL
- Default: http://localhost:3000
Step 2: Initialize Chrome Browser
Call: mcp__claude-in-chrome__tabs_context_mcpGet the current tab context. Then create a new tab:
Call: mcp__claude-in-chrome__tabs_create_mcpStore the tabId for subsequent calls.
Step 3: Navigate to App
Call: mcp__claude-in-chrome__navigate
- url: [frontend URL]
- tabId: [tabId]Step 4: Take Initial Screenshot
Confirm the app loaded correctly:
Call: mcp__claude-in-chrome__computer
- action: "screenshot"
- tabId: [tabId]Report to user:
Browser opened at [URL]
You can now interact with the app manually.
I'm monitoring for console errors in the background.
When you're done testing, say "done" or "finish testing".Step 5: Monitor for Errors
While the user tests, periodically check for console errors:
Call: mcp__claude-in-chrome__read_console_messages
- tabId: [tabId]
- pattern: "error|Error|ERROR|exception|Exception"If errors are found, briefly note them but don't interrupt the user's flow.
Step 6: Wait for User to Finish
The user will indicate they're done testing by saying something like:
- "done"
- "finish"
- "stop testing"
- "I'm done"
Step 7: Capture Final State
When the user signals completion:
- Take final screenshot:
Call: mcp__claude-in-chrome__computer
- action: "screenshot"
- tabId: [tabId]- Get all console messages:
Call: mcp__claude-in-chrome__read_console_messages
- tabId: [tabId]- Optionally get network requests if relevant:
Call: mcp__claude-in-chrome__read_network_requests
- tabId: [tabId]Step 8: Generate and Save Report
Generate a report with this structure:
## MANUAL TEST REPORT
### Session Info
- URL: [frontend URL]
- Date: [timestamp]
- Duration: [approximate time]
### Console Errors
[List any JS errors captured, or "None detected"]
### Network Issues
[Any failed requests, or "None detected"]
### User Observations
[Space for any notes the user mentioned during testing]
### Issues Found
[Summarize any problems discovered, or "None"]
…Save the report to the sprint directory:
Write the report to: .claude/sprint/[N]/manual-test-report.md
If a previous manual-test-report.md exists, append a timestamp suffix:
- .claude/sprint/[N]/manual-test-report-[timestamp].md
Inform the user:
Report saved to .claude/sprint/[N]/manual-test-report.md
This report will be picked up when you run /sprint
The architect will use it to understand what needs to be fixed.Error Handling
If the browser fails to open or navigate:
- Report the error to the user
- Suggest checking if the app is running
- Provide the URL that was attempted
Notes
- This command uses Chrome browser MCP (mcpclaude-in-chrome*)
- The browser tab stays open for the user to interact with
- Console errors are captured automatically
- Reports are saved to the sprint folder for the architect to use
- No sprint workflow, no architect, no agents - just direct browser testing
Before you install
- Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
- Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
- Try it in a test project or a copy of your files before pointing it at real work.
- Pin the version you tested, and review changes before updating.
- Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.
FAQ
What is Test?
Test is a slash command for Claude Code and Claude Cowork from the jeremylongshore/tons-of-skills-marketplace repository on GitHub. Manual UI testing with Chrome browser - explore your app while errors are
How do I install Test in Claude Code?
Download test.md from the repository. Save it to ~/.claude/commands/ (all projects) or .claude/commands/ (one project). As a skill, you can instead save it as ~/.claude/skills/<name>/SKILL.md. Run it by typing / followed by its name, with arguments such as [url].
Can I use Test in Claude Cowork?
Turn the command into a skill: create a folder with the file saved as SKILL.md and zip it. In Customize → Skills, click +, then upload the ZIP. Run it from any task with / and the skill name.
Is Test safe to install?
It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.
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