test

test is a skill for Claude Code, Codex from owainlewis/blueprint. It costs 44 tokens per session (513 once invoked), scanned A, original, MIT.

A testing guide that checks whether a code change meets its stated acceptance criteria. For browser-based work, it includes checking the real user flow in a browser.

In plain words
What is it for?
Use it to test a change, branch, pull request, web page, URL, or user flow, and to add focused tests where proof is missing.
Why use it?
A successful build or a quick look at the code may not prove that the feature works for users. This helps connect each requirement to concrete evidence.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/owainlewis/blueprint/test
Any agent
npx skills add owainlewis/blueprint --skill test
Clone the repo
git clone --depth 1 https://github.com/owainlewis/blueprint

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for test

README.md
[![agentmods](https://agentmods.dev/badge/skills/owainlewis/blueprint/test.svg)](https://agentmods.dev/skills/owainlewis/blueprint/test)
Your own site
<a href="https://agentmods.dev/skills/owainlewis/blueprint/test"><img src="https://agentmods.dev/badge/skills/owainlewis/blueprint/test.svg" alt="Measured on agentmods" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 513 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00044 $0.00513
Opus 5 $0.00022 $0.00257
Sonnet 5 $0.00009 $0.00103
Haiku 4.5 $0.00004 $0.00051

Measured 4d ago against content hash 80aed43fc8c5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

test 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 4d 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.

skills/test/SKILL.md · 45 lines

How it starts

The opening of the file, as written. The whole thing — 45 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Test

Prove the behavior that matters. A passing build or a source-code reading can support the proof, but neither proves a user-visible flow.

Process

  1. Read the task, its source design when present, changed code, existing tests, and repository instructions. Acceptance criteria come from the task or approved design. Preserve their wording and AC-n or INV-n IDs. Never rewrite criteria to match the code.
  2. Map every acceptance criterion, cited invariant, and affected failure path to proof by ID. Test changed behavior and behavior a refactor must preserve.
  3. If automated tests cannot exercise the affected behavior, explain why and give other evidence.
  4. Add or update focused tests where proof is missing. Assertions should fail when the changed behavior breaks.
  5. Assert behavior a user or caller can observe unless the test targets a documented internal contract. Keep setup and assertions no more complex than the scenario.
  6. Run the narrowest checks that exercise the changed behavior and affected interfaces. Run wider checks when shared behavior or interfaces changed.
  7. When browser-rendered behavior changes, start the documented app and check the required flows and affected failures in a real browser.
    • Check desktop and mobile when layout or responsive styles changed.
    • Check keyboard use when interactions changed.
    • Check console errors and failed requests during every flow.
    • Capture evidence. Reading source is not browser proof.
  8. Report each AC-n, INV-n, or task criterion as pass, fail, or unverified. Include the command, browser flow, or other evidence.

Return

Report each criterion in this shape:

Criterion: <ID or exact wording>
Result: Pass / Fail / Unverified
Evidence: <command, browser flow, or artifact>
Gap: <what remains unknown, or None>

Lead with failures and unverified criteria. Do not hide them below passing checks.

Boundaries

  • Do not weaken assertions to make a change pass.
  • Do not fix unrelated failures.
  • If required browser tooling is unavailable, report the check as blocked unless the user explicitly accepts a manual exception.

Read the full file on GitHub · 45 lines

Changes

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.

  1. 4d ago First seen · 45 lines · 44 tokens per session scan A 80aed43fc8c5

Subscribe to this mod's changes

test is a skill published in the GitHub repository owainlewis/blueprint (375 stars, last pushed 6d ago), licensed MIT. It adds 44 tokens to every session and 513 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.

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