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 Miaoge-Ge/coding-agent-skills --skill llm-testing-expertgit clone --depth 1 https://github.com/Miaoge-Ge/coding-agent-skillsWrote 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/miaoge-ge/coding-agent-skills/llm-testing-expert)<a href="https://agentmods.dev/skills/miaoge-ge/coding-agent-skills/llm-testing-expert"><img src="https://agentmods.dev/badge/skills/miaoge-ge/coding-agent-skills/llm-testing-expert/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/miaoge-ge/coding-agent-skills/llm-testing-expert"><img src="https://agentmods.dev/badge/skills/miaoge-ge/coding-agent-skills/llm-testing-expert.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 | $0.00080 | $0.02953 |
| Opus 5.5 | $0.00032 | $0.01181 |
| Sonnet 5.5 | $0.00016 | $0.00591 |
| Haiku 4.5 | $0.00008 | $0.00295 |
Grade A, and why
llm-testing-expert 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.
How it starts
The opening of the file, as written. The whole thing — 268 lines — stays where its author put it; the contents beside it link to each section on GitHub.
LLM Testing and Evaluation
Description
Provide LLM test strategy design, test dataset construction, automated evaluation, and security red teaming recommendations to ensure models meet production requirements for functionality, performance, robustness, and safety.
When to Use
- User requests "design LLM testing strategy" or "how to evaluate model quality"
- User needs to build test datasets, design test cases, or perform regression testing
- User seeks prompt optimization, engineering, and version management recommendations
- User needs to evaluate model performance metrics (accuracy, hallucination rate, safety, latency, cost)
- User asks how to conduct A/B testing or comparative evaluation (multi-model/multi-version)
- User needs automated testing workflows or CI/CD integration
- User requests red team testing design (jailbreak, prompt injection, adversarial attacks)
- User asks about specialized testing strategies for RAG systems or Agent applications
When NOT to Use
- User only needs traditional software testing (unit tests, integration tests) without LLM-specific concerns
- User's problem is about model training or fine-tuning techniques, not testing/evaluation
- User needs data annotation or data cleaning, not test strategy design
- User only asks how to use an LLM framework or tool, not testing strategy
- User's problem is pure Prompt Engineering (how to write better prompts), not how to test prompt effectiveness
Input
{
testTarget: {
type: string // Test object type (base-model/fine-tuned-model/rag-system/agent/prompt-template)
modelInfo?: {
name: string // Model name (e.g., gpt-4, claude-3.5-sonnet)
version?: string // Version
deployment?: string // Deployment method (API/self-hosted)
}
applicationContext?: string // Application scenario (e.g., customer service, code generation, document summarization)
}
testObjectives: {
functional?: boolean // Functional correctness testing
performance?: boolean // Performance testing (latency, throughput, cost)
robustness?: boolean // Robustness testing (adversarial samples, edge cases)
safety?: boolean // Safety testing (jailbreak, injection, PII leakage)
userExperience?: boolean // User experience testing
}
constraints: {
budget?: string // Testing budget (API call cost/manual annotation cost)
timeline?: string // Testing timeline
existingTestAssets?: string[] // Existing test assets (test sets, annotated data)
complianceRequirements?: string // Compliance requirements (GDPR, industry regulations)
}
riskAreas?: string[] // Known risk areas (e.g., hallucination, bias, privacy leakage)
existingMetrics?: string // Existing evaluation metrics and baselines
}
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 · 268 lines · 80 tokens per session scan A 3206c795e977
llm-testing-expert is a skill published in the GitHub repository Miaoge-Ge/coding-agent-skills (7 stars, last pushed 5mo ago), licensed MIT. It adds 80 tokens to every session and 2,953 once invoked, about $0.0003 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 2026-08-31.
llm-testing-expert compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| llm-testing-expertMiaoge-Ge/coding-agent-skills | Skill | 7 | 5mo ago | MIT | A | 80 | Claude Code |
| compressed-system-promptsalivirgo/Major-AI-Skills | Skill | 2 | today | MIT | A | 23 | Claude Code |
| agent-system-prompt-architectCR-730/agent-system-prompt-architect-skill | Skill | 25 | 1mo ago | MIT | A | 145 | Codex |
| Prompt RefinerNotysoty/openagentskills | Skill | 9 | 3mo ago | MIT | A | 21 | Claude Code, Codex |
| Prompt Version Control WorkflowNotysoty/openagentskills | Skill | 9 | 3mo ago | MIT | A | 30 | Claude Code, Codex |
| ai-engineering-toolkitaboalrejal-ai/skills | Skill | 1 | 2mo ago | MIT | A | 47 | Claude Code, Codex |
| ai-engineering-toolkitsickn33/agentic-awesome-skills | Skill | 50k | today | MIT | A | 47 | Claude Code |