Fetches core-motion from dpearson2699/swift-ios-skills and configures it for Cursor.
3
Select Cursor when prompted
The CLI shows a list of agents. Use arrow keys and space to select Cursor:
◆ Which agents do you want to install to?
│
│ ── Universal (.agents/skills) ────────────────
│ · Cline · Codex · Goose · Windsurf
│ ●Cursor(selected)
│ · Cursor · Aider · Continue
4
Verify installation
Confirm successful installation by checking the skill directory location:
.cursor/skills/core-motion
Restart Cursor to activate core-motion. Access via /core-motion in your agent's command palette.
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Security Notice
We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.
Skills execute code in your environment. Always review source, verify the publisher, and test in isolation before production.
Read device sensor data -- accelerometer, gyroscope, magnetometer, pedometer, and
activity recognition -- on iOS and watchOS. CoreMotion fuses raw sensor inputs into
processed device-motion data and provides pedometer/activity APIs for fitness and
navigation use cases. Targets Swift 6.3 / iOS 26+.
Add NSMotionUsageDescription to Info.plist with a user-facing string explaining
why your app needs motion data. Without this key, the app crashes on first access.
<key>NSMotionUsageDescription</key><string>This app uses motion data to track your activity.</string>
Authorization
CoreMotion uses CMAuthorizationStatus for pedometer and activity APIs. Sensor
APIs (accelerometer, gyro) do not require explicit authorization but do require
the usage description key.
importCoreMotionlet status =CMMotionActivityManager.authorizationStatus()switch status {case.notDetermined:// Will prompt on first usebreakcase.authorized:breakcase.restricted,.denied:// Direct user to Settingsbreak@unknowndefault:break}
For games, start updates without a handler and poll the latest sample each frame:
motionManager.startAccelerometerUpdates()// In your game loop / display link:iflet data = motionManager.accelerometerData {let tilt = data.acceleration.x
// Move player based on tilt}
Processed Device Motion
Device motion fuses accelerometer, gyroscope, and magnetometer into a single
CMDeviceMotion object with attitude, user acceleration (gravity removed),
rotation rate, and calibrated magnetic field.
›Access to product documentation and roadmap tools (Jira, Notion, etc.)
›Understanding of product management frameworks (RICE, Jobs-to-be-Done, etc.)
›Stakeholder contact information and communication channels
Time Estimate
30-60 minutes to see productivity improvements
Steps
1Install product management skill
2Start with user story generation for known feature
3Progress to competitive analysis: research 2-3 competitors
4Use for roadmap prioritization: apply RICE/ICE scoring
5Draft stakeholder communications and refine based on feedback
6Build template library for recurring PM tasks
7Share effective prompts with product team
Common Pitfalls
⚠Not validating competitive research—verify facts before sharing
⚠Accepting user stories without involving engineering team
⚠Over-relying on frameworks without qualitative judgment
⚠Not customizing outputs to company culture and communication style
⚠Skipping stakeholder validation of generated requirements
Best Practices
✓ Do
+Validate research and competitive analysis with real data
+Collaborate with engineering when generating technical requirements
+Customize frameworks and templates to your company context
+Use skill for first drafts, refine with stakeholder input
+Document successful prompt patterns for PM tasks
+Combine AI efficiency with human judgment and intuition
✗ Don't
−Don't publish competitive analysis without fact-checking
−Don't finalize user stories without engineering review
−Don't make prioritization decisions solely on AI scoring
−Don't skip customer validation of generated requirements
−Don't ignore company-specific context and culture
💡 Pro Tips
★Provide context: company goals, constraints, customer feedback
★Ask for alternatives: 'Show 3 ways to prioritize this roadmap'
★Request stakeholder-specific formatting: 'Executive summary vs. engineering spec'
★Use skill for 70% generation + 30% customization to company needs
When to Use This
✓ Use when
Use for user story writing, competitive research, roadmap prioritization, stakeholder communication, and PRD drafting. Best for reducing repetitive documentation and research work.
✗ Avoid when
Avoid for strategic product vision (requires deep customer empathy), pricing decisions (needs market and financial expertise), or when face-to-face customer discovery is more valuable than speed.
Learning Path
1Basic: user stories, feature specs, status updates
