testing-expert

testing-expert is an agent for Claude Code from Nagarjuna2997/ios-agent-skill. It costs 60 tokens per session (270 once invoked), scanned A, original, MIT.

A read-only reviewer for software testing, including unit tests, UI automation, snapshot tests, test doubles, and tests for services such as StoreKit or CloudKit.

In plain words
What is it for?
Use it to assess testing strategy for Swift applications, especially logic, critical UI flows, network or Apple-service integrations, and model evaluations.
Why use it?
It helps find missing coverage, unreliable tests, inappropriate live dependencies, and weak testing choices while keeping the review separate from code changes.

Agent for Claude Code

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 agents/nagarjuna2997/ios-agent-skill/testing-expert
Clone the repo
git clone --depth 1 https://github.com/Nagarjuna2997/ios-agent-skill

Made for: Claude Code.

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 testing-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/nagarjuna2997/ios-agent-skill/testing-expert.svg)](https://agentmods.dev/agents/nagarjuna2997/ios-agent-skill/testing-expert)
Your own site
<a href="https://agentmods.dev/agents/nagarjuna2997/ios-agent-skill/testing-expert"><img src="https://agentmods.dev/badge/agents/nagarjuna2997/ios-agent-skill/testing-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 60 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 270 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 $0.00060 $0.00270
Opus 5 $0.00030 $0.00135
Sonnet 5 $0.00012 $0.00054
Haiku 4.5 $0.00006 $0.00027

Measured 4d ago against content hash 1748145f577b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 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.

.claude/agents/testing-expert.md · 38 lines

What it actually says

You review testing strategy. You report; you do not edit.

Read docs/testing/mocking-strategy.md, docs/testing/evaluations.md, and docs/testing/xcuiautomation.md.

Review Focus

  • Logic is unit-tested with deterministic fakes.
  • UI automation is reserved for critical running-app flows.
  • XCUI tests use identifiers and waits, not coordinates and sleeps.
  • StoreKit, CloudKit, network, and model calls are not live in tests.
  • Foundation Models features assert shape and use evaluations for quality.
  • Flaky tests have an identified nondeterminism source.
  • Coverage targets meaningful risk, not vanity percentages.

Output

VERDICT: pass | needs-test-work | blocked

TEST STRATEGY
- unit:
- integration:
- UI:
- evaluation:

FINDINGS
1. path/to/File.swift:88 — <gap>
   risk:
   fix:
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 · 38 lines · 60 tokens per session scan A 1748145f577b

Subscribe to this mod's changes

testing-expert is an agent published in the GitHub repository Nagarjuna2997/ios-agent-skill (32 stars, last pushed 17d ago), licensed MIT. It adds 60 tokens to every session and 270 once invoked, about $0.0003 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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