Interactive CLI Testing With tui-test
slopus/happy
Tests interactive CLI and TUI programs with Microsoft's tui-test, driving prompts, arrow keys and screen output in a real pseudo-terminal.
Comprehensive verification system for Claude Code sessions. An agent skill from cloudnative-co/claude-code-starter-kit.
Install Verification Loop
$ npx skills add cloudnative-co/claude-code-starter-kit --skill verification-loop -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install cloudnative-co/claude-code-starter-kit verification-loop --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/cloudnative-co/claude-code-starter-kit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/verification-loop .claude/skills/verification-loop && 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 "verification-loop" agent skill from https://github.com/cloudnative-co/claude-code-starter-kit/tree/main/skills/verification-loop into .claude/skills/verification-loop/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "verification-loop", 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/cloudnative-co/claude-code-starter-kit/tree/main/skills/verification-loopType 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 cloudnative-co/claude-code-starter-kit --skill verification-loop -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install cloudnative-co/claude-code-starter-kit verification-loop --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cloudnative-co/claude-code-starter-kit.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/verification-loop .agents/skills/verification-loop && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "verification-loop" agent skill from https://github.com/cloudnative-co/claude-code-starter-kit/tree/main/skills/verification-loop into .agents/skills/verification-loop/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "verification-loop", 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 cloudnative-co/claude-code-starter-kit --skill verification-loop -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install cloudnative-co/claude-code-starter-kit verification-loop --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cloudnative-co/claude-code-starter-kit.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/verification-loop .cursor/skills/verification-loop && 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 "verification-loop" agent skill from https://github.com/cloudnative-co/claude-code-starter-kit/tree/main/skills/verification-loop into .cursor/skills/verification-loop/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "verification-loop", 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/cloudnative-co/claude-code-starter-kit.git --path skills/verification-loop--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 cloudnative-co/claude-code-starter-kit --skill verification-loop -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install cloudnative-co/claude-code-starter-kit verification-loop --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cloudnative-co/claude-code-starter-kit.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/verification-loop .gemini/skills/verification-loop && 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 "verification-loop" agent skill from https://github.com/cloudnative-co/claude-code-starter-kit/tree/main/skills/verification-loop into .gemini/skills/verification-loop/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "verification-loop", 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 cloudnative-co/claude-code-starter-kit verification-loopInstalls 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 cloudnative-co/claude-code-starter-kit --skill verification-loop -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/cloudnative-co/claude-code-starter-kit.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/verification-loop .github/skills/verification-loop && 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 "verification-loop" agent skill from https://github.com/cloudnative-co/claude-code-starter-kit/tree/main/skills/verification-loop into .github/skills/verification-loop/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "verification-loop", 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 cloudnative-co/claude-code-starter-kit --skill verification-loop -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install cloudnative-co/claude-code-starter-kit verification-loop --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cloudnative-co/claude-code-starter-kit.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/verification-loop .opencode/skills/verification-loop && 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 "verification-loop" agent skill from https://github.com/cloudnative-co/claude-code-starter-kit/tree/main/skills/verification-loop into .opencode/skills/verification-loop/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "verification-loop", 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
verification-loop- GitHub stars
- 152
- Token cost
- ~733 tokens
- SKILL.md length
- 317 words
- Files
- 1
- Skills in repo
- 8
- Repo updated
- First seen
- Licence
- MIT
At a glance
Comprehensive verification system for Claude Code sessions. An agent skill from cloudnative-co/claude-code-starter-kit.
- Works in 6 steps: Build Verification → Type Check → Lint Check → …
- Testing & QA work in your project
- SKILL.md covers When to Use, Verification Phases, Output Format and Integration with Hooks
- Calls git, npm and cargo
What it does
Verification Loop is an agent skill from cloudnative-co/claude-code-starter-kit. Comprehensive verification system for Claude Code sessions. Use after implementation to validate correctness.
Its SKILL.md is about 730 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. It works with npm. The repository describes itself as: One-command setup of a complete Claude Code development environment with interactive wizard. The licence is MIT.
When your agent uses it
- Testing & QA work in your project
Example prompts
- “/verification-loop”
Requirements
- Node.js
Workflow steps
6 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit 475212e. 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
Shell commands in SKILL.md call:
gitnpmcargogoshellchecknpxmypyruffpytestbash
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use git, npm and npx, which can reach the network depending on how they are called.
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
Verification Loop loads about 733 tokens when it runs. Until then it costs about 32 tokens; SKILL.md has 317 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
The full file from cloudnative-co/claude-code-starter-kit at commit 475212e, republished under its MIT licence (© cloudnative-co). 317 words, ~733 tokens.
Download SKILL.mdSave it as
.claude/skills/verification-loop/SKILL.md (or your agent's skills folder).- name
- verification-loop
- description
- Comprehensive verification system for Claude Code sessions. Use after implementation to validate correctness.
- when_to_use
- Use when implementation is complete and the user wants verification before handoff, commit, or PR creation.
Verification Loop Skill
A comprehensive verification system for Claude Code sessions.
When to Use
Invoke this skill:
- After completing a feature or significant code change
- Before creating a PR
- When you want to ensure quality gates pass
- After refactoring
Verification Phases
Pick the right command for each phase from the project's own configuration (package.json scripts, Makefile, CI workflow, etc.). The commands below are examples, not prescriptions. Summarize long output instead of pasting it verbatim.
Phase 1: Build Verification
Check that the project builds. Examples: npm run build, cargo check, go build ./..., shellcheck -S warning *.sh.
If the build fails, STOP and fix before continuing.
Phase 2: Type Check
Run the project's type checker if it has one. Examples: npx tsc --noEmit (TypeScript), pyright . or mypy . (Python).
Report all type errors. Fix critical ones before continuing.
Phase 3: Lint Check
Run the project's linter. Examples: npm run lint, ruff check ., shellcheck.
Phase 4: Test Suite
Run the project's test suite, with coverage if available. Examples: npm test -- --coverage, pytest --cov, bash tests/run-unit-tests.sh.
Report:
- Total tests: X
- Passed: X
- Failed: X
- Coverage: X% (against the project's target)
Phase 5: Security Scan
Check for leaked secrets in the changes:
- If a dedicated scanner is available (gitleaks, trufflehog), use it.
- Otherwise, follow the bundled security-review skill.
- At minimum, review the added lines of
git difffor credentials, tokens, and keys. Do not report PASS based on a repository-wide grep.
Also check for leftover debug output (e.g., console.log, print) in the changed files.
Phase 6: Diff Review
# Show what changed
git diff --stat
git diff HEAD~1 --name-onlyReview each changed file for:
- Unintended changes
- Missing error handling
- Potential edge cases
Output Format
After running all phases, produce a verification report:
VERIFICATION REPORT
==================
Build: [PASS/FAIL]
Types: [PASS/FAIL] (X errors)
Lint: [PASS/FAIL] (X warnings)
Tests: [PASS/FAIL] (X/Y passed, Z% coverage)
Security: [PASS/FAIL] (X issues)
Diff: [X files changed]
Overall: [READY/NOT READY] for PR
Issues to Fix:
1. ...
2. ...Integration with Hooks
This skill complements PostToolUse hooks but provides deeper verification. Hooks catch issues immediately; this skill provides comprehensive review. If you need periodic automated re-verification, use a hook or the /loop command; instructions in this skill body cannot schedule themselves.
© cloudnative-co, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/verification-loop of cloudnative-co/claude-code-starter-kit.
Open the folder on GitHubat commit 475212e
Compare with similar skills
Verification Loop 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 |
|---|---|---|---|---|---|---|
| Verification Loop this skillcloudnative-co/claude-code-starter-kit | 152 | — | ~733 | Automated safety check: Pass | MIT | |
| Interactive CLI Testing With tui-testslopus/happy | 24k | — | ~603 | Automated safety check: Pass | MIT | |
| Testingtrieb-work/nextjs-turbo-redis-cache | 151 | — | ~1.1k | Automated safety check: Pass | MIT | |
| Run One SpecLiberatedPixelCup/Universal-LPC-Spritesheet-Character-Generator | 1.8k | — | ~746 | Automated safety check: Pass | GPL-3.0 | |
| UI Visual DebuggingNangoHQ/nango | 13k | — | ~1.3k | Automated safety check: Pass | Custom licence | |
| LivewireArtexis10/endstate-gui | 116 | — | ~2.9k | Automated safety check: Pass | Apache-2.0 |
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Run One Spec
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Run a single Node, browser, or Playwright spec instead of the full suite.
UI Visual Debugging
NangoHQ/nango
A skill your agent uses when modifying or visually debugging Nango frontend UI, including packages/webapp, packages/connect-ui, browser interactions, screenshots, and visual regressions.
Livewire
Artexis10/endstate-gui
Drive the real GUI against the real engine via the standalone dev HTTP bridge (npm run dev:bridge).
Testing Gaps
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Run coverage, inspect results, and identify missing test scenarios for a given source file.
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Related
Works with
Categories
Questions about Verification Loop
What does Verification Loop do?
Comprehensive verification system for Claude Code sessions. An agent skill from cloudnative-co/claude-code-starter-kit. Verification Loop is an agent skill from cloudnative-co/claude-code-starter-kit. Comprehensive verification system for Claude Code sessions.
When should I use Verification Loop?
Verification Loop fits situations like: testing & QA work in your project.
How do I install Verification Loop in Claude Code?
Run `npx skills add cloudnative-co/claude-code-starter-kit --skill verification-loop -a claude-code`. Or copy the skill folder (skills/verification-loop in cloudnative-co/claude-code-starter-kit) into .claude/skills/verification-loop in your project. Claude Code loads it when a task matches its description.
How do I install Verification Loop in Codex?
Run `npx skills add cloudnative-co/claude-code-starter-kit --skill verification-loop -a codex`. Or copy the skill folder (skills/verification-loop in cloudnative-co/claude-code-starter-kit) into .agents/skills/verification-loop in your project. Codex loads it when a task matches its description.
Can I use Verification Loop 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 cloudnative-co/claude-code-starter-kit --skill verification-loop -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/verification-loop, .gemini/skills/verification-loop, .github/skills/verification-loop and .opencode/skills/verification-loop in your project.
What does Verification Loop need to run?
Going by SKILL.md and its folder, Verification Loop needs the command-line tools its instructions call (git, npm, cargo, go, shellcheck and npx). Our summary lists: Node.js.
Does Verification Loop access the network?
SKILL.md contains no URLs. Its commands use git, npm and npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Verification Loop 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 Verification Loop use?
Verification Loop is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Verification Loop use?
About 733 tokens (SKILL.md is roughly 2.9k 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 Verification Loop?
Skills that share tags, products or a category with Verification Loop: Interactive CLI Testing With tui-test (slopus/happy, 24k stars), Testing (trieb-work/nextjs-turbo-redis-cache, 151 stars), Run One Spec (LiberatedPixelCup/Universal-LPC-Spritesheet-Character-Generator, 1.8k stars) and UI Visual Debugging (NangoHQ/nango, 13k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Verification Loop?
cloudnative-co (a GitHub organization) maintains it in cloudnative-co/claude-code-starter-kit, which has 152 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on October 8, 2026.
Source: cloudnative-co/claude-code-starter-kit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.