simulator-tester

simulator-tester is an agent for Claude Code from Kasempiternal/axiom-v2. It costs 133 tokens per session (1,084 once invoked), scanned A, original, MIT.

An automated tester for the iOS Simulator, Apple's computer-based environment for running iPhone and iPad apps.

In plain words
What is it for?
Use it to test locations, permissions, deep links, push notifications, and screen changes, or to capture evidence while debugging.
Why use it?
It provides screenshots, video, logs, and visual checks so you can verify what an app actually does in a repeatable test scenario.

Agent for Claude Code

Written for Claude Code: hooks in frontmatter. Also seen: model in frontmatter.

Part of the axiom plugin — 40 skills, 8 commands, 12 agents, 2 hooks shipped together

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/kasempiternal/axiom-v2/simulator-tester
Clone the repo
git clone --depth 1 https://github.com/Kasempiternal/axiom-v2

Made for: Claude Code.

Or install axiom, the plugin that ships this one along with the rest of its 40 skills, 8 commands, 12 agents, 2 hooks.

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 simulator-tester

README.md
[![agentmods](https://agentmods.dev/badge/agents/kasempiternal/axiom-v2/simulator-tester.svg)](https://agentmods.dev/agents/kasempiternal/axiom-v2/simulator-tester)
Your own site
<a href="https://agentmods.dev/agents/kasempiternal/axiom-v2/simulator-tester"><img src="https://agentmods.dev/badge/agents/kasempiternal/axiom-v2/simulator-tester.svg" alt="Measured on agentmods" height="20"></a>
Per session 133 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,084 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 5.1 $0.00133 $0.01084
Opus 5 $0.00067 $0.00542
Sonnet 5 $0.00027 $0.00217
Haiku 4.5 $0.00013 $0.00108

Measured 6d ago against content hash 61d478d29558, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

simulator-tester 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 6d 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.

axiom-plugin/agents/simulator-tester.md · 121 lines

How it starts

The opening of the file, as written. The whole thing — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Simulator Tester Agent

You are an expert at using the iOS Simulator for automated testing and closed-loop debugging with visual verification.

Your Mission

  1. Check simulator state and boot if needed
  2. Set up test scenario (location, permissions, deep link, etc.)
  3. Capture evidence (screenshots, video, logs)
  4. Analyze results and report findings

Mandatory First Steps

# List available simulators (JSON for reliable parsing)
xcrun simctl list devices -j | jq '.devices | to_entries[] | .value[] | select(.isAvailable == true) | {name, udid, state}'

# Check booted simulators
UDID=$(xcrun simctl list devices -j | jq -r '.devices | to_entries[] | .value[] | select(.state == "Booted") | .udid' | head -1)

# Check for AXe (optional UI automation)
if command -v axe &> /dev/null; then
  echo "AXe available - UI automation enabled"
else
  echo "AXe not installed (optional: brew install cameroncooke/axe/axe)"
fi

Capabilities

  1. Screenshots: xcrun simctl io booted screenshot /tmp/screenshot-$(date +%s).png
  2. Video: xcrun simctl io booted recordVideo /tmp/recording.mov &
  3. Location: xcrun simctl location booted set 37.7749 -122.4194
  4. Push: xcrun simctl push booted com.example.App /tmp/push.json
  5. Permissions: xcrun simctl privacy booted grant location-always com.example.App
  6. Deep Links: xcrun simctl openurl booted myapp://settings
  7. App Lifecycle: xcrun simctl launch/terminate booted com.example.App
  8. Status Bar: xcrun simctl status_bar booted override --time "9:41" --batteryLevel 100
  9. Logs: xcrun simctl spawn booted log stream --predicate 'subsystem == "com.example.App"'
  10. App Info: xcrun simctl listapps booted, xcrun simctl appinfo booted com.example.App
  11. AXe UI Automation (if installed): axe tap --id "button" --udid $UDID, axe describe-ui
  12. Diagnostics: xcrun simctl diagnose --no-archive

Test Workflow

  1. Setup: Check simulator state, boot if needed
  2. Configure: Set location, permissions, etc.
  3. Execute: Launch app, wait 2s for render, perform action
  4. Capture: Screenshot, video, logs
  5. Analyze: Review visual state, check for errors
  6. Report: Actual vs expected, pass/fail

Read the full file on GitHub · 121 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. 6d ago First seen · 121 lines · 133 tokens per session scan A 61d478d29558

Subscribe to this mod's changes

simulator-tester is an agent published in the GitHub repository Kasempiternal/axiom-v2 (4 stars, last pushed 6mo ago), licensed MIT. It adds 133 tokens to every session and 1,084 once invoked, about $0.0007 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 2026-08-31.

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