Sample Agent Skills for Builders is a collection of reusable skills that extend AI coding agents with AWS, CDK, security, testing, and engineering workflows. Developers can install the skills for practical AWS development tasks or use the repository as a model for creating their own agent skills. The catalogue entries are skills and instructions from this collection.
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.
npx skills add aws-samples/sample-agent-skills-for-builders --skill end-to-end-testinggit clone --depth 1 https://github.com/aws-samples/sample-agent-skills-for-buildersWrote 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.
[](https://agentmods.dev/skills/aws-samples/sample-agent-skills-for-builders/end-to-end-testing)<a href="https://agentmods.dev/skills/aws-samples/sample-agent-skills-for-builders/end-to-end-testing"><img src="https://agentmods.dev/badge/skills/aws-samples/sample-agent-skills-for-builders/end-to-end-testing/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.
<a href="https://agentmods.dev/skills/aws-samples/sample-agent-skills-for-builders/end-to-end-testing"><img src="https://agentmods.dev/badge/skills/aws-samples/sample-agent-skills-for-builders/end-to-end-testing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00038 | $0.00485 |
| Opus 5 | $0.00019 | $0.00243 |
| Sonnet 5 | $0.00008 | $0.00097 |
| Haiku 4.5 | $0.00004 | $0.00049 |
Grade A, and why
end-to-end-testing 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 10d 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.
What it actually says
End-to-End Testing
Systematic E2E testing workflow for complete system validation with evidence capture.
When to Apply
Reference this skill when:
- Running integration or E2E tests
- Validating complete user flows
- Capturing test evidence (screenshots, logs)
- Generating test reports
- Documenting defects systematically
How It Works
Phase 1: Preparation
- Gather environment information
- Verify test credentials
- Set up test data
Phase 2: Planning & Design
- Smoke testing
- Test case design
- Priority assignment
Phase 3: Execution
- Execute test cases
- Capture evidence (screenshots)
- Document defects
Phase 4: Pre-Reporting Validation (CRITICAL)
- MANDATORY before reporting
- Verify all evidence captured
- Validate defect documentation
- Cross-check test results
Phase 5: Reporting
- Generate comprehensive reports
- Create HTML viewer
- Archive evidence
Output Structure
test-reports/
└── YYYY-MM-DD_HHMMSS/
├── Test_Report_Viewer.html
├── test-case-reports/
├── defect-reports/
├── test-summary-report.md
├── screenshots/
└── logs/
Usage
# Generate HTML report
python scripts/generate-html-report.py --input test-results/
# Validate test data
./scripts/validate-test-data.sh
Templates
References
What ships with it
13 files 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.
- assets/templates/defect-report.md 2.9 KB
- assets/templates/Test_Report_Viewer.html 63 KB
- assets/templates/test-case-report.md 1.6 KB
- assets/templates/test-env.template 709 B
- assets/templates/test-summary-report.md 4.7 KB
- README.md 5.0 KB
- references/execution.md 12 KB
- references/planning-design.md 8.2 KB
- references/preparation.md 3.4 KB
- references/reporting.md 17 KB
- references/validation.md 19 KB
- scripts/generate-html-report.py 23 KB runs code
- scripts/validate-test-data.sh 12 KB runs code
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.
- 10d ago First seen · 87 lines · 38 tokens per session scan A 22d5dd4cacae
end-to-end-testing is a skill published in the GitHub repository aws-samples/sample-agent-skills-for-builders (47 stars, last pushed 13d ago), licensed Apache-2.0. It adds 38 tokens to every session and 485 once invoked, about $0.0002 per session on Opus 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 2026-08-30.
Other skills, from other repositories
dogfood
Systematically explore and test a mobile app on iOS/Android with agent-device to find bugs, UX issues, and other problems. Use when asked to dogfood, QA, exploratory test, find issues, bug hunt, or test this app on mobile.
test-warp-ui
Guides testing Warp UI features and changes using the computer use tool. Use this skill only when computer-use testing was requested (explicit request or accepted offer) and the computeruse tool is available to the agent. Covers launching Warp and verifying UI behavior.
test-electron-app
Drive the real running PostHog Electron app (live tRPC, workspace-server, real data) over CDP with agent-browser. Connect to the running app on port 9222, test desktop changes against a local Django stack, snapshot the accessibility tree, inspect network requests, and screenshot only when explicitly asked. Use when…
pyats-dynamic-test
Generate and execute deterministic pyATS aetest validation scripts - interface state, OSPF neighbors, BGP paths, ping matrices, and custom compliance tests. Use when writing a network test, validating post-change state, running pass/fail checks, or building automated regression tests.
test-loop
Plan, generate, and heal an executable E2E test suite from approved acceptance criteria (web and mobile).
playwright-cli
Automates browser interactions for testing and validating your own web applications using playwright-cli. Use when you need terminal-first browser control for navigation, form filling, screenshots, tracing, bound browser sessions, debugging, or generating Playwright test code. Only use against applications you own or…