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Build, run, and debug iOS apps via CLI without Xcode UI. Use when user wants to build iOS app, run on simulator, capture logs, take screenshots, or automate simulator interactions. Not for Swift code patterns (use apple-swift).
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Execution trace capture and token baselining. Use when user says trace, extract trace, count tokens, token baseline, or /harness-trace. Not for harness optimization (use harness-mechanic).
Release prep and tagging with pre-flight verification. Use when user says release, tag, ship it, push to production, create release, or bump version. Not for editing a version string outside a release, a lockfile or a changelog entry by hand, and not for reading what changed in a past release: those are ordinary edits, just do them.
Mine LEARNING.md retrospectives across all repos for recurring failure-modes, then propose harness changes (hooks, rules, skills, checklist items) with falsifiable change-contracts. Also runs the doc-gardening pass over the governance docs (stale rules, dead cross-references, skill-table drift). Use when user says learning loop, mine learnings, recurring failures, what should I fix in my process, cross-repo retrospective, doc gardening, stale docs, or run learning-loop. Runs on human schedule, never autonomously. Not for single-project retrospectives (use learning-docs) or trace/token analysis (use harness-mechanic).
Full contractor-mode loop: sub-protocols (LOCALIZE, BENCH-BASELINE, REPRODUCE, DRIFT), review routing by file pattern, blast radius, UAT, parallelism and effort caps, escalation, just-do-it, goal-backed runs. Load it to RUN that loop, once you have an approved plan and are entering step 1, or when a step needs its detail. It is a protocol, not a way to do the work: it never replaces the language, review or planning skill the task itself calls for, and a task small enough to just edit (SKIP_SET) needs none of it. The always-on spine lives in rules/orchestrator-protocol.md. Not for trace capture (harness-trace) or harness optimization (harness-mechanic).
Ruby on Rails with service-oriented architecture, Dry-validation, Sidekiq/Solid Queue, Hotwire. Use for Rails API, Rails services, Rails forms, RSpec, ActiveRecord, Rails migrations. Not for standalone Ruby gems (use ruby skill), and not for judging whether a migration is safe to run in production (that is the database-reviewer agent).
Get three independent second opinions (isolated Claude + isolated Gemini + isolated DeepSeek) on a problem Claude is analyzing. Use when user says second opinion, another perspective, challenge this approach, or asks gemini/deepseek about a decision, approach, or diagnosis. Also invoke on your own initiative, without being asked: on a complex task before planning, after 2 failed root-cause attempts, on a 🔴 decision (rewrite, core logic, security), or when the review loop is stuck below 80 after 2 fix rounds. Gathers context, writes a focused prompt, calls all reviewers in isolated Docker containers, and synthesizes all viewpoints. Not for reviewing code or changes, even phrased as 'ask gemini to review' (use gemini-review).
| name | ios-debugger |
| description | Build, run, and debug iOS apps via CLI without Xcode UI. Use when user wants to build iOS app, run on simulator, capture logs, take screenshots, or automate simulator interactions. Not for Swift code patterns (use apple-swift). |
| compatibility | Requires Xcode and iOS Simulator. Optionally XcodeBuildMCP for enhanced integration. |
# Ensure XcodeBuildMCP is available
# Check if simulator is booted (pick <booted device> from this list, do not hardcode a model)
xcrun simctl list devices | grep Booted
# Boot simulator if needed
xcrun simctl boot "<booted device>"
Throughout this file, <booted device> is a placeholder: substitute the device name or UDID from xcrun simctl list devices | grep Booted.
# Build for simulator
xcodebuild -workspace MyApp.xcworkspace \
-scheme MyApp \
-sdk iphonesimulator \
-destination 'platform=iOS Simulator,name=<booted device>' \
build
# Install app on simulator
xcrun simctl install booted path/to/MyApp.app
# Launch app
xcrun simctl launch booted com.example.myapp
simctl io does NOT do taps/typing/swipes (it only handles screenshot, recordVideo, enumerate, poll). For UI automation pick one of:
# Screenshot / screen recording (simctl's actual io surface)
xcrun simctl io booted screenshot screenshot.png
xcrun simctl io booted recordVideo demo.mov # stop with Ctrl-C
# Taps/typing/gestures option 1: XCUITest (robust, accessibility-ID based)
xcodebuild test -workspace App.xcworkspace -scheme AppUITests \
-destination 'platform=iOS Simulator,name=<booted device>'
# Taps/typing/gestures option 2: Meta's idb (brew install idb-companion; pip install fb-idb)
idb ui tap 200 400
idb ui text "Hello World"
idb ui swipe 200 600 200 200 --duration 0.5
If a command shape is not listed here, verify with xcrun simctl help io before using it (this file once shipped invented simctl io tap/type/swipe subcommands).
# Stream all logs from booted simulator
xcrun simctl spawn booted log stream --predicate 'processImagePath CONTAINS "MyApp"'
# Filter by subsystem
xcrun simctl spawn booted log stream --predicate 'subsystem == "com.example.myapp"'
# Capture logs to file
xcrun simctl spawn booted log stream \
--predicate 'processImagePath CONTAINS "MyApp"' \
> app.log &
# Erase all data
xcrun simctl erase "<booted device>"
# Shutdown and boot
xcrun simctl shutdown "<booted device>"
xcrun simctl boot "<booted device>"
log stream predicates to filter noisexcrun simctl openurl to test deep links# Run XCTests on simulator
xcodebuild test \
-workspace App.xcworkspace \
-scheme App \
-destination 'platform=iOS Simulator,name=<booted device>' \
-resultBundlePath TestResults.xcresult