Access research-grade sensor data using SensorKit for approved studies.

Custom licenceAuto-check passedMobile

Install Sensorkit

skills CLI
$ npx skills add dpearson2699/swift-ios-skills --skill sensorkit -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install dpearson2699/swift-ios-skills sensorkit --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/dpearson2699/swift-ios-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sensorkit .claude/skills/sensorkit && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
sensorkit
GitHub stars
1.2k
Token cost
~3.3k tokens
SKILL.md length
789 words
Files
3 (incl. references)
Skills in repo
86
Repo updated
First seen
Licence
Custom licence

At a glance

Access research-grade sensor data using SensorKit for approved studies.

  • Works in 5 steps: Apple-approved research study -- submit… → SensorKit entitlement -- Apple grants… → Manual provisioning profile -- Xcode… → …
  • An app needs SensorKit entitlement setup
  • SKILL.md covers Contents, Overview and Requirements, Entitlements and Info.plist Configuration, plus 8 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Sensorkit is an agent skill from dpearson2699/swift-ios-skills. Access research-grade sensor data using SensorKit for approved studies. Use when an app needs SensorKit entitlement setup, Research Sensor & Usage Data authorization, ambient light, recorded motion, device usage, keyboard metrics, visits, speech, face, wrist temperature, ECG, PPG, acoustic settings, or sleep-session data. Route ordinary motion to CoreMotion and health records/workouts to HealthKit.

Its SKILL.md is about 3.3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `evals/evals.json` and `references/sensorkit-patterns.md`).

It sits in Mobile, covering Health and fitness tracking and Authorization and RBAC. The repository describes itself as: Agent Skills for iOS 26+, Swift 6.3, SwiftUI, and modern Apple frameworks.

When your agent uses it

  • An app needs SensorKit entitlement setup
  • Research Sensor & Usage Data authorization
  • Recorded motion
  • Keyboard metrics

Example prompts

  • “/sensorkit”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Apple-approved research study -- submit a proposal at
  2. SensorKit entitlement -- Apple grants com.apple.developer.sensorkit.reader.allow
  3. Manual provisioning profile -- Xcode requires an explicit App ID with the
  4. User authorization -- the system presents a Research Sensor & Usage Data
  5. Delayed retrieval -- design fetch timing around the canonical

What it can do on your machine

Read from SKILL.md and the folder at commit 8d90fd1. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are swift and xml).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • sosumi.ai
    • researchandcare.org

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Sensorkit loads about 3.3k tokens when it runs, and up to ~11k if it reads all its reference files. Until then it costs about 103 tokens; SKILL.md has 789 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~103
When it runs · the whole SKILL.md, loaded when a task matches
~3.3k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~11k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 789 words (~3,281 tokens).

“Choose the exact SRSensor and verify its individual availability. Use CoreMotion for ordinary motion/activity features and HealthKit for health records and workouts.”

— opening of SKILL.md by dpearson2699, Custom licence
name
sensorkit

Read the full SKILL.md on GitHub

Files

SKILL.md and 2 other files (references) in skills/sensorkit of dpearson2699/swift-ios-skills.

  • SKILL.md
  • evals/evals.json
  • references/sensorkit-patterns.md

Open the folder on GitHubat commit 8d90fd1

Compare with similar skills

Sensorkit next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Sensorkit compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Sensorkit this skilldpearson2699/swift-ios-skills1.2k—~3.3kAutomated safety check: PassCustom licence
Watchos Design Guidelinesehmo/platform-design-skills606—~4.3kAutomated safety check: PassMIT
Asyncredux Abort Dispatchmarcglasberg/async_redux238—~2.3kAutomated safety check: PassCustom licence
RuView Sensing Applicationsruvnet/RuView97k—~1.1kAutomated safety check: NotesMIT
Coachfelixrieseberg/claude-coach1991 repos~4.9kAutomated safety check: PassMIT
Fitness Analyzerhuifer/WellAlly-health9605 repos~1.3kAutomated safety check: PassMIT

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Questions about Sensorkit

What does Sensorkit do?

Access research-grade sensor data using SensorKit for approved studies. Sensorkit is an agent skill from dpearson2699/swift-ios-skills. Access research-grade sensor data using SensorKit for approved studies.

When should I use Sensorkit?

Sensorkit fits situations like: an app needs SensorKit entitlement setup; research Sensor & Usage Data authorization; recorded motion; keyboard metrics.

How do I install Sensorkit in Claude Code?

Run `npx skills add dpearson2699/swift-ios-skills --skill sensorkit -a claude-code`. Or copy the skill folder (skills/sensorkit in dpearson2699/swift-ios-skills) into .claude/skills/sensorkit in your project. Claude Code loads it when a task matches its description.

How do I install Sensorkit in Codex?

Run `npx skills add dpearson2699/swift-ios-skills --skill sensorkit -a codex`. Or copy the skill folder (skills/sensorkit in dpearson2699/swift-ios-skills) into .agents/skills/sensorkit in your project. Codex loads it when a task matches its description.

Can I use Sensorkit in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add dpearson2699/swift-ios-skills --skill sensorkit -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sensorkit, .gemini/skills/sensorkit, .github/skills/sensorkit and .opencode/skills/sensorkit in your project.

What does Sensorkit need to run?

SKILL.md names no scripts, command-line tools or credentials: Sensorkit is instructions for the agent only.

Does Sensorkit access the network?

SKILL.md names 2 domains. As links in the text: sosumi.ai and researchandcare.org. This is read from the text; nothing was executed.

Is Sensorkit safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Sensorkit use?

Sensorkit has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Sensorkit use?

About 3.3k tokens (SKILL.md is roughly 13k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 7.2k tokens, read only when the agent opens those files.

What are the alternatives to Sensorkit?

Skills that share tags, products or a category with Sensorkit: Watchos Design Guidelines (ehmo/platform-design-skills, 606 stars), Asyncredux Abort Dispatch (marcglasberg/async_redux, 238 stars), RuView Sensing Applications (ruvnet/RuView, 97k stars) and Coach (felixrieseberg/claude-coach, 199 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Sensorkit?

dpearson2699 (a GitHub user) maintains it in dpearson2699/swift-ios-skills, which has 1,183 GitHub stars. The repository holds 86 skills in this directory. The repository was last updated on July 31, 2026.

Source: dpearson2699/swift-ios-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.