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 shinpr/claude-code-workflows --skill integration-e2e-testinggit clone --depth 1 https://github.com/shinpr/claude-code-workflowsWrote 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/shinpr/claude-code-workflows/integration-e2e-testing)<a href="https://agentmods.dev/skills/shinpr/claude-code-workflows/integration-e2e-testing"><img src="https://agentmods.dev/badge/skills/shinpr/claude-code-workflows/integration-e2e-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/shinpr/claude-code-workflows/integration-e2e-testing"><img src="https://agentmods.dev/badge/skills/shinpr/claude-code-workflows/integration-e2e-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 | $0.00042 | $0.02839 |
| Opus 5.5 | $0.00017 | $0.01136 |
| Sonnet 5.5 | $0.00008 | $0.00568 |
| Haiku 4.5 | $0.00004 | $0.00284 |
Grade A, and why
integration-e2e-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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 182 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Integration and E2E Testing Principles
References
E2E test design: See references/e2e-design.md for UI Spec-driven E2E test candidate selection.
Test Type Definition and Standard Budgets
| Test Type | Purpose | Scope | External Deps | Standard Budget per Input Design Doc | Implementation Timing |
|---|---|---|---|---|---|
| Integration | Verify component interactions in-process | Partial system integration (in-process modules; for UI components, the framework's in-process renderer e.g., RTL+MSW for React/TS) | Mocked or in-process | MAX 3 | Created alongside implementation |
| fixture-e2e | Verify UI behavior in a browser with deterministic fixtures | Full UI flow with mocked backend / fixture-driven state | Mocked / fixture only — no live services | MAX 3 | Created alongside the UI feature |
| service-integration-e2e | Verify critical user journeys against a running local stack | Full system across services | Live local services or stubs | MAX 1-2 | Earliest task where the proof boundary and required services are executable |
Lane selection (E2E only):
- Default lane for user-facing UI journeys is fixture-e2e — it runs a real browser against deterministic fixtures, catches the bugs that unit/integration tests miss (button no-op, state never updates, navigation breaks), and runs in CI without infrastructure setup
- Add service-integration-e2e only when the journey's correctness depends on real cross-service behavior (data persistence, transactional consistency, external service contracts) that cannot be faked safely
One input Design Doc is one budget scope: apply each lane budget once across all ACs and candidates in that document. The two E2E lanes are budgeted independently — having a fixture-e2e for a journey does not consume the service-integration-e2e budget and vice versa. Treat the numbers above as enforced standard budgets. Exceed a budget only when an accepted requirement or a distinct failure mode cannot be proved by a selected test; annotate that exception and why consolidation cannot cover it.
What ships with it
1 file 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.
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.
- 5d ago Changed · -16 lines 25ae01956b30
- 1mo ago Changed 9e20e2f4e2f4
- 1mo ago First seen · 198 lines · 42 tokens per session scan A 6be174fc7180
integration-e2e-testing is a skill published in the GitHub repository shinpr/claude-code-workflows (701 stars, last pushed yesterday), licensed MIT. It adds 42 tokens to every session and 2,839 once invoked, about $0.0002 per session on Opus 5.5. 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.
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