qcheckt

qcheckt is a skill for Claude Code from 3awny/qship. It costs 62 tokens per session (1,559 once invoked), scanned A, original, MIT.

A reviewer for automated tests that checks whether they verify the right behavior, include edge cases, and avoid weak or flaky checks.

In plain words
What is it for?
Use it to review tests for a code change, classify them as unit, integration, or end-to-end tests, and find weak assertions, excessive mocking, or unreliable behavior.
Why use it?
It helps catch tests that appear to provide coverage but would not fail when the implementation is broken.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions CLAUDE.md.

Part of the qship plugin — 22 skills, 1 agent, 1 hook shipped together

Good fit Use it to review tests for a code change, classify them as unit, integration, or end-to-end tests, and find weak assertions, excessive mocking, or unreliable behavior.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/3awny/qship/qcheckt
View source ↗ 3awny/qship
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.

Any agent
npx skills add 3awny/qship --skill qcheckt
Clone the repo
git clone --depth 1 https://github.com/3awny/qship

Made for: Claude Code.

Or install qship, the plugin that ships this one along with the rest of its 22 skills, 1 agent, 1 hook.

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 qcheckt

README.md
[![agentmods](https://agentmods.dev/badge/skills/3awny/qship/qcheckt.svg)](https://agentmods.dev/skills/3awny/qship/qcheckt)
Your own site
<a href="https://agentmods.dev/skills/3awny/qship/qcheckt"><img src="https://agentmods.dev/badge/skills/3awny/qship/qcheckt.svg" alt="Measured on agentmods" height="20"></a>
Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,559 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00062 $0.01559
Opus 5 $0.00031 $0.00779
Sonnet 5 $0.00012 $0.00312
Haiku 4.5 $0.00006 $0.00156

Measured 7d ago against content hash 2dba7d5c8491, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

qcheckt scanned grade A with 1 finding 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 7d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- **E2E test that doesn't actually run live** — uses Jest mocks or curls localhost while the service isn't actually running. Must produce a real artifact (curl output, browser screenshot, SQL row). Memory: `feedback_e2e_
templates/skills/qcheckt/SKILL.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Tests Review

You are a skeptical senior engineer reviewing test code. The goal is to catch tests that look like they cover the change but don't actually fail when the implementation breaks — and to surface flaky / over-mocked / over-asserted tests before they ship.

Scope

Default to the diff under review:

git diff develop...HEAD -- '**/test_*.py' '**/*_test.py' '**/conftest.py' '**/*.test.ts' '**/*.test.tsx' '**/*.spec.ts' '**/*.spec.tsx'

If staged changes are the target, swap for git diff --cached. Whole-suite audits are an opt-in (--full), not the default.

For each test you find, classify it: unit, integration (real DB / real services), or E2E (live browser / live API stack). The review criteria differ.

What to look for

Walk these patterns. Flag a finding only when you can name the failure mode it produces — i.e., what bug the test would miss.

1. Tests that don't actually test the behavior

  • Assertion is too weak: assert len(result) > 0, assert result is not None, assert response.status_code < 500. Proves the code ran, not that it's correct.
  • Mocked the thing under test: the function whose behavior is being verified is itself a mock. Common in route tests that mock the service the route delegates to.
  • Snapshot without semantic check: snapshot test on a structure where any superficial change passes (auto-update on diff). Add at least one semantic assertion.
  • Tests the implementation, not the contract: assertions on internal call counts (mock.assert_called_with(...)) when the public behavior is what should be checked. Mocks are scaffolding, not assertions.

2. Mocking that hides real bugs

  • Mocking the database in a code path that does SQL gymnastics — your memory has explicit feedback on this (mocked tests pass while real migrations / SQL syntax fail). Integration tests for repos must hit a real DB.
  • Mocking time / network without testing the unmocked path elsewhere — at least one test in the suite must exercise the real I/O.
  • mock.ANY in critical assertions — proves nothing about the value. Replace with the actual expected value.
  • Patching the wrong import path — patches module_a.func when the test target imports it as module_b.func. Test passes; mock never fired.

Read the full file on GitHub · 105 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. 7d ago First seen · 105 lines · 62 tokens per session scan A 2dba7d5c8491

Subscribe to this mod's changes

qcheckt is a skill published in the GitHub repository 3awny/qship (2 stars, last pushed 2mo ago), licensed MIT. It adds 62 tokens to every session and 1,559 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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