Swiftui Pro
twostraws/SwiftUI-Agent-Skill
Comprehensively reviews SwiftUI code for best practices on modern APIs, maintainability, and performance.
Profile, diagnose, and remediate SwiftUI runtime performance using code review, Instruments, and repeatable measurements.
Install Swiftui Performance
$ npx skills add dpearson2699/swift-ios-skills --skill swiftui-performance -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install dpearson2699/swift-ios-skills swiftui-performance --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/dpearson2699/swift-ios-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/swiftui-performance .claude/skills/swiftui-performance && rm -rf skills-srcUse ~/.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/
Install the "swiftui-performance" agent skill from https://github.com/dpearson2699/swift-ios-skills/tree/main/skills/swiftui-performance into .claude/skills/swiftui-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swiftui-performance", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/dpearson2699/swift-ios-skills/tree/main/skills/swiftui-performanceType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add dpearson2699/swift-ios-skills --skill swiftui-performance -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install dpearson2699/swift-ios-skills swiftui-performance --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dpearson2699/swift-ios-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/swiftui-performance .agents/skills/swiftui-performance && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "swiftui-performance" agent skill from https://github.com/dpearson2699/swift-ios-skills/tree/main/skills/swiftui-performance into .agents/skills/swiftui-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swiftui-performance", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add dpearson2699/swift-ios-skills --skill swiftui-performance -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install dpearson2699/swift-ios-skills swiftui-performance --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dpearson2699/swift-ios-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/swiftui-performance .cursor/skills/swiftui-performance && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "swiftui-performance" agent skill from https://github.com/dpearson2699/swift-ios-skills/tree/main/skills/swiftui-performance into .cursor/skills/swiftui-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swiftui-performance", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/dpearson2699/swift-ios-skills.git --path skills/swiftui-performance--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add dpearson2699/swift-ios-skills --skill swiftui-performance -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install dpearson2699/swift-ios-skills swiftui-performance --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dpearson2699/swift-ios-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/swiftui-performance .gemini/skills/swiftui-performance && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "swiftui-performance" agent skill from https://github.com/dpearson2699/swift-ios-skills/tree/main/skills/swiftui-performance into .gemini/skills/swiftui-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swiftui-performance", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install dpearson2699/swift-ios-skills swiftui-performanceInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add dpearson2699/swift-ios-skills --skill swiftui-performance -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/dpearson2699/swift-ios-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/swiftui-performance .github/skills/swiftui-performance && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "swiftui-performance" agent skill from https://github.com/dpearson2699/swift-ios-skills/tree/main/skills/swiftui-performance into .github/skills/swiftui-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swiftui-performance", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add dpearson2699/swift-ios-skills --skill swiftui-performance -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install dpearson2699/swift-ios-skills swiftui-performance --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dpearson2699/swift-ios-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/swiftui-performance .opencode/skills/swiftui-performance && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "swiftui-performance" agent skill from https://github.com/dpearson2699/swift-ios-skills/tree/main/skills/swiftui-performance into .opencode/skills/swiftui-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swiftui-performance", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
swiftui-performance- GitHub stars
- 1.2k
- Token cost
- ~3k tokens
- SKILL.md length
- 1,288 words
- Files
- 7 (incl. references)
- Skills in repo
- 86
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Profile, diagnose, and remediate SwiftUI runtime performance using code review, Instruments, and repeatable measurements.
- Works in 5 steps: Code-First Review → Guide the User to Profile → Analyze and Diagnose → …
- A SwiftUI screen renders slowly
- SKILL.md covers Contents, Workflow Decision Tree, 1. Code-First Review and 2. Guide the User to Profile, plus 12 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Swiftui Performance is an agent skill from dpearson2699/swift-ios-skills. Profile, diagnose, and remediate SwiftUI runtime performance using code review, Instruments, and repeatable measurements. Use when a SwiftUI screen renders slowly, scrolling or animations hitch, view bodies update excessively, list identity churns, layout work spikes, or broad Observation dependencies raise CPU cost. Covers evidence-based triage, SwiftUI Instruments lanes, lazy-container guardrails, state lifetime, and before/after verification.
Its SKILL.md is about 3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 8 other files, including reference files (for example `evals/evals.json`, `references/demystify-swiftui-performance-wwdc23.md` and `references/optimizing-swiftui-performance-instruments.md`).
It sits in Mobile, covering iOS development. It works with SwiftUI. The repository describes itself as: Agent Skills for iOS 26+, Swift 6.3, SwiftUI, and modern Apple frameworks.
When your agent uses it
- A SwiftUI screen renders slowly
- Animations hitch
- View bodies update excessively
- List identity churns
Example prompts
- “/swiftui-performance”
Workflow steps
5 steps, taken from the step headings in SKILL.md.
- Code-First Review
- Guide the User to Profile
- Analyze and Diagnose
- Remediate
- Verify
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).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
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
Swiftui Performance loads about 3k tokens when it runs, and up to ~9.1k if it reads all its reference files. Until then it costs about 117 tokens; SKILL.md has 1,288 words of instructions outside code blocks.
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 1,288 words (~2,957 tokens).
“Audit SwiftUI view performance from a reproducible symptom to measured remediation. Route animation design to swiftui-animation, production telemetry to metrickit, ownership/leak analysis to ios-memgraph-analysis, navigation behavior to swiftui-navigation, state architecture to swiftui-patterns, and layout construction to swiftui-layout-components.”
- name
- swiftui-performance
Files
SKILL.md and 6 other files (references) in skills/swiftui-performance of dpearson2699/swift-ios-skills.
- SKILL.md
- evals/evals.json
- references/demystify-swiftui-performance-wwdc23.md
- references/optimizing-swiftui-performance-instruments.md
- references/understanding-hangs-in-your-app.md
- references/understanding-improving-swiftui-performance.md
- references/wwdc-session-sources.md
Open the folder on GitHubat commit 8d90fd1
Compare with similar skills
Swiftui Performance 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Swiftui Performance this skilldpearson2699/swift-ios-skills | 1.2k | — | ~3k | Automated safety check: Pass | Custom licence | |
| Swiftui Protwostraws/SwiftUI-Agent-Skill | 5.1k | 2 repos | ~1.5k | Automated safety check: Pass | MIT | |
| Swiftui UI PatternsAFK-surf/OpenBridge | 430 | 4 repos | ~887 | Automated safety check: Pass | MIT | |
| Swiftui Performance Auditharperreed/dotfiles | 334 | 8 repos | ~1.4k | Automated safety check: Pass | None | |
| Hig Project Contextraintree-technology/hig-doctor | 143 | 5 repos | ~1.2k | Automated safety check: Pass | MIT | |
| Hig Components Contentraintree-technology/hig-doctor | 143 | 5 repos | ~1.3k | Automated safety check: Pass | MIT |
Similar skills
Swiftui UI Patterns
AFK-surf/OpenBridge
Best practices and example-driven guidance for building SwiftUI views and components.
Swiftui Performance Audit
harperreed/dotfiles
Audit and improve SwiftUI runtime performance from code review and architecture.
Hig Project Context
raintree-technology/hig-doctor
Create or update a shared Apple design context document that other HIG skills use to tailor guidance.
Hig Components Content
raintree-technology/hig-doctor
Apple Human Interface Guidelines for content display components.
Chunui
liseami/ChunUI
Build iOS apps with the ChunUI design system (Monochrome texture extracted from the production app Zinner/Chat0IM).
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Related
Works with
Categories
Questions about Swiftui Performance
What does Swiftui Performance do?
Profile, diagnose, and remediate SwiftUI runtime performance using code review, Instruments, and repeatable measurements. Swiftui Performance is an agent skill from dpearson2699/swift-ios-skills. Profile, diagnose, and remediate SwiftUI runtime performance using code review, Instruments, and repeatable measurements.
When should I use Swiftui Performance?
Swiftui Performance fits situations like: A SwiftUI screen renders slowly; animations hitch; view bodies update excessively; list identity churns.
How do I install Swiftui Performance in Claude Code?
Run `npx skills add dpearson2699/swift-ios-skills --skill swiftui-performance -a claude-code`. Or copy the skill folder (skills/swiftui-performance in dpearson2699/swift-ios-skills) into .claude/skills/swiftui-performance in your project. Claude Code loads it when a task matches its description.
How do I install Swiftui Performance in Codex?
Run `npx skills add dpearson2699/swift-ios-skills --skill swiftui-performance -a codex`. Or copy the skill folder (skills/swiftui-performance in dpearson2699/swift-ios-skills) into .agents/skills/swiftui-performance in your project. Codex loads it when a task matches its description.
Can I use Swiftui Performance 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 swiftui-performance -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/swiftui-performance, .gemini/skills/swiftui-performance, .github/skills/swiftui-performance and .opencode/skills/swiftui-performance in your project.
What does Swiftui Performance need to run?
SKILL.md names no scripts, command-line tools or credentials: Swiftui Performance is instructions for the agent only.
Does Swiftui Performance access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Swiftui Performance 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 Swiftui Performance use?
Swiftui Performance 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 Swiftui Performance use?
About 3k tokens (SKILL.md is roughly 12k 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 6.1k tokens, read only when the agent opens those files.
What are the alternatives to Swiftui Performance?
Skills that share tags, products or a category with Swiftui Performance: Swiftui Pro (twostraws/SwiftUI-Agent-Skill, 5.1k stars), Swiftui UI Patterns (AFK-surf/OpenBridge, 430 stars), Swiftui Performance Audit (harperreed/dotfiles, 334 stars) and Hig Project Context (raintree-technology/hig-doctor, 143 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Swiftui Performance?
dpearson2699 (a GitHub user) maintains it in dpearson2699/swift-ios-skills, which has 1,175 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.