Borrowing it
Nothing to install: this file belongs to brianmontero18/dev-mcp-tools. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/brianmontero18/dev-mcp-tools/main/.claude/commands/qcheckt.mdgit clone --depth 1 https://github.com/brianmontero18/dev-mcp-toolsWrote 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/commands/brianmontero18/dev-mcp-tools/qcheckt)<a href="https://agentmods.dev/commands/brianmontero18/dev-mcp-tools/qcheckt"><img src="https://agentmods.dev/badge/commands/brianmontero18/dev-mcp-tools/qcheckt/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/commands/brianmontero18/dev-mcp-tools/qcheckt"><img src="https://agentmods.dev/badge/commands/brianmontero18/dev-mcp-tools/qcheckt.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00000 | $0.00751 |
| Opus 5.5 | $0.00000 | $0.00300 |
| Sonnet 5.5 | $0.00000 | $0.00150 |
| Haiku 4.5 | $0.00000 | $0.00075 |
Grade A, and why
qcheckt 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 2mo 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
QCHECKT - Test-Focused Review
When user types "qcheckt", execute this workflow as a SKEPTICAL senior software engineer:
Focus: Writing Tests Best Practices Only
For every MAJOR test added or edited (skip minor changes):
Test Quality Checklist (CLAUDE.md)
- Parameterized Inputs: SHOULD parameterize inputs; never embed unexplained literals such as 42 or "foo" directly in test
- Real Defect Testing: SHOULD NOT add test unless it can fail for real defect. Trivial asserts (e.g., expect(2).toBe(2)) are forbidden
- Description Alignment: SHOULD ensure test description states exactly what the final expect verifies. If wording and assert don't align, rename or rewrite
- Independent Expectations: SHOULD compare results to independent, pre-computed expectations or domain properties, never to function's output re-used as oracle
- Code Standards: SHOULD follow same lint, type-safety, and style rules as prod code (prettier, ESLint, strict types)
- Property Testing: SHOULD express invariants or axioms (commutativity, idempotence, round-trip) rather than single hard-coded cases when practical. Use
fast-checklibrary - Test Grouping: Unit tests for function should be grouped under
describe(functionName, () => ... - Parameter Testing: Use
expect.any(...)when testing for parameters that can be anything (e.g. variable ids) - Strong Assertions: ALWAYS use strong assertions over weaker ones e.g.
expect(x).toEqual(1)instead ofexpect(x).toBeGreaterThanOrEqual(1) - Edge Cases: SHOULD test edge cases, realistic input, unexpected input, and value boundaries
- Type Safety: SHOULD NOT test conditions that are caught by the type checker
Response Template
🧪 **QCHECKT - Test Review**
**Tests Analyzed:**
**Test**: `testName` in `file.test.ts`
1. **Parameterized**: ✅/❌ [No magic literals like 42, "foo"?]
2. **Real Defects**: ✅/❌ [Can fail for actual bugs, not trivial?]
3. **Description**: ✅/❌ [Description matches what expect verifies?]
4. **Independent**: ✅/❌ [Expectations independent of implementation?]
5. **Standards**: ✅/❌ [Follows lint/type/style rules?]
6. **Properties**: ✅/❌ [Uses invariants/axioms when possible?]
7. **Grouping**: ✅/❌ [Grouped under describe(functionName)?]
8. **Parameters**: ✅/❌ [Uses expect.any() appropriately?]
9. **Strong Asserts**: ✅/❌ [Strong over weak assertions?]
10. **Edge Cases**: ✅/❌ [Covers boundaries/unexpected input?]
11. **Type Safety**: ✅/❌ [Doesn't test type-checker conditions?]
**Property Testing Opportunities:**
[Could this test benefit from fast-check invariants?]
**Edge Cases Coverage:**
- Boundaries: ✅/❌
- Empty/null inputs: ✅/❌
- Invalid inputs: ✅/❌
- Large datasets: ✅/❌
**Recommendations:**
[Specific suggestions for test improvement]
**Test Status:** ✅ Solid / ⚠️ Needs improvement / ❌ Rewrite needed
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.
- 2mo ago First seen · 54 lines · 0 tokens per session scan A 1959d7ebbe43
qcheckt is a command published in the GitHub repository brianmontero18/dev-mcp-tools (0 stars, last pushed 1y ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 751 tokens. 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 2026-09-01.
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