Apple Crash Log .NET Symbolication
dotnet/skills
Resolves .NET runtime frames in Apple .ips crash logs to function names, source files and line numbers using dSYM symbols, atos and the Microsoft symbol server.
A skill your agent uses when implementing Network.framework connections (NWConnection, NetworkConnection), debugging connection failures, migrating from sockets/URLSession streams, or handling…
Install Swift Networking
$ npx skills add johnrogers/claude-swift-engineering --skill swift-networking -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install johnrogers/claude-swift-engineering swift-networking --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/johnrogers/claude-swift-engineering.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/swift-engineering/skills/swift-networking .claude/skills/swift-networking && 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 "swift-networking" agent skill from https://github.com/johnrogers/claude-swift-engineering/tree/main/plugins/swift-engineering/skills/swift-networking into .claude/skills/swift-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swift-networking", 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/johnrogers/claude-swift-engineering/tree/main/plugins/swift-engineering/skills/swift-networkingType 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 johnrogers/claude-swift-engineering --skill swift-networking -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install johnrogers/claude-swift-engineering swift-networking --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/johnrogers/claude-swift-engineering.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/swift-engineering/skills/swift-networking .agents/skills/swift-networking && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "swift-networking" agent skill from https://github.com/johnrogers/claude-swift-engineering/tree/main/plugins/swift-engineering/skills/swift-networking into .agents/skills/swift-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swift-networking", 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 johnrogers/claude-swift-engineering --skill swift-networking -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install johnrogers/claude-swift-engineering swift-networking --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/johnrogers/claude-swift-engineering.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/swift-engineering/skills/swift-networking .cursor/skills/swift-networking && 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 "swift-networking" agent skill from https://github.com/johnrogers/claude-swift-engineering/tree/main/plugins/swift-engineering/skills/swift-networking into .cursor/skills/swift-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swift-networking", 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/johnrogers/claude-swift-engineering.git --path plugins/swift-engineering/skills/swift-networking--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 johnrogers/claude-swift-engineering --skill swift-networking -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install johnrogers/claude-swift-engineering swift-networking --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/johnrogers/claude-swift-engineering.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/swift-engineering/skills/swift-networking .gemini/skills/swift-networking && 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 "swift-networking" agent skill from https://github.com/johnrogers/claude-swift-engineering/tree/main/plugins/swift-engineering/skills/swift-networking into .gemini/skills/swift-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swift-networking", 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 johnrogers/claude-swift-engineering swift-networkingInstalls 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 johnrogers/claude-swift-engineering --skill swift-networking -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/johnrogers/claude-swift-engineering.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/swift-engineering/skills/swift-networking .github/skills/swift-networking && 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 "swift-networking" agent skill from https://github.com/johnrogers/claude-swift-engineering/tree/main/plugins/swift-engineering/skills/swift-networking into .github/skills/swift-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swift-networking", 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 johnrogers/claude-swift-engineering --skill swift-networking -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install johnrogers/claude-swift-engineering swift-networking --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/johnrogers/claude-swift-engineering.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/swift-engineering/skills/swift-networking .opencode/skills/swift-networking && 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 "swift-networking" agent skill from https://github.com/johnrogers/claude-swift-engineering/tree/main/plugins/swift-engineering/skills/swift-networking into .opencode/skills/swift-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swift-networking", 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
swift-networking- GitHub stars
- 231
- Token cost
- ~701 tokens
- SKILL.md length
- 297 words
- Files
- 6 (incl. references)
- Skills in repo
- 17
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when implementing Network.framework connections (NWConnection, NetworkConnection), debugging connection failures, migrating from sockets/URLSession streams, or handling…
- Works in 6 steps: Choose transport (TCP/UDP/QUIC) based on… → Create NWConnection (iOS 12+) or… → Set up state handler for connection… → …
- Implementing Network.framework connections (NWConnection
- SKILL.md covers Reference Loading Guide, Core Workflow, When to Use Network.framework… and Common Mistakes
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Swift Networking is an agent skill from johnrogers/claude-swift-engineering. Use when implementing Network.framework connections (NWConnection, NetworkConnection), debugging connection failures, migrating from sockets/URLSession streams, or handling network transitions. Covers UDP/TCP patterns, structured concurrency networking (iOS 26+), and common anti-patterns.
Its SKILL.md is about 700 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `references/connection-states.md`, `references/getting-started.md` and `references/ios26-networking.md`).
It sits in Mobile, covering iOS development. It works with iOS. The repository describes itself as: A collection of agents and skills to aid in the planning, implementation, documentation and testing of Swift/TCA code. The licence is MIT.
When your agent uses it
- Implementing Network.framework connections (NWConnection
- NetworkConnection)
- Debugging connection failures
- Migrating from sockets/URLSession streams
Example prompts
- “/swift-networking”
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Choose transport (TCP/UDP/QUIC) based on use case
- Create NWConnection (iOS 12+) or NetworkConnection (iOS 26+)
- Set up state handler for connection lifecycle
- Start connection on appropriate queue
- Send/receive data with proper error handling
- Handle network transitions (WiFi to cellular)
What it can do on your machine
Read from SKILL.md and the folder at commit 1dc2cf4. 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.
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
Swift Networking loads about 701 tokens when it runs, and up to ~4.4k if it reads all its reference files. Until then it costs about 77 tokens; SKILL.md has 297 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
The full file from johnrogers/claude-swift-engineering at commit 1dc2cf4, republished under its MIT licence (© johnrogers). 297 words, ~701 tokens.
Download SKILL.mdSave it as
.claude/skills/swift-networking/SKILL.md (or your agent's skills folder). This skill also uses 5 other files; get the full folder from GitHub.- name
- swift-networking
- description
- Use when implementing Network.framework connections (NWConnection, NetworkConnection), debugging connection failures, migrating from sockets/URLSession streams, or handling network transitions. Covers UDP/TCP patterns, structured concurrency networking (iOS 26+), and common anti-patterns.
Swift Networking
Network.framework is Apple's modern networking API for TCP/UDP connections, replacing BSD sockets with smart connection establishment, user-space networking, and seamless mobility handling.
Reference Loading Guide
ALWAYS load reference files if there is even a small chance the content may be required. It's better to have the context than to miss a pattern or make a mistake.
| Reference | Load When |
|---|---|
| Getting Started | Setting up NWConnection for TCP/UDP, choosing between APIs |
| Connection States | Handling .waiting, .ready, .failed transitions |
| iOS 26+ Networking | Using NetworkConnection with async/await, TLV framing, Coder protocol |
| Migration Guide | Moving from sockets, CFSocket, SCNetworkReachability, URLSession |
| Troubleshooting | Debugging timeouts, TLS failures, connection issues |
Core Workflow
- Choose transport (TCP/UDP/QUIC) based on use case
- Create NWConnection (iOS 12+) or NetworkConnection (iOS 26+)
- Set up state handler for connection lifecycle
- Start connection on appropriate queue
- Send/receive data with proper error handling
- Handle network transitions (WiFi to cellular)
When to Use Network.framework vs URLSession
- URLSession: HTTP, HTTPS, WebSocket, simple TCP/TLS streams
- Network.framework: UDP, custom protocols, low-level control, peer-to-peer, gaming
Common Mistakes
Ignoring state handlers — Creating an NWConnection without a state change handler means you never learn when it's ready or failed. Always implement the state handler first.
Blocking the main thread — Never call
receive()on the main queue. Use a background DispatchQueue or Task for all network operations.Wrong queue selection — Using the wrong queue (UI queue for network work, or serial queue for concurrent reads) causes deadlocks or silent failures. Always explicit your queue choice.
Not handling network transitions — WiFi/cellular switches or network loss aren't always detected automatically. Implement viability checks and state monitoring for robust apps.
Improper error recovery — Network errors need retry logic with backoff. Immediately failing on transient errors (timeouts, temporary loss) creates poor UX.
© johnrogers, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 5 other files (references) in plugins/swift-engineering/skills/swift-networking of johnrogers/claude-swift-engineering.
- SKILL.md
- references/connection-states.md
- references/getting-started.md
- references/ios26-networking.md
- references/migration.md
- references/troubleshooting.md
Open the folder on GitHubat commit 1dc2cf4
Compare with similar skills
Swift Networking 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 |
|---|---|---|---|---|---|---|
| Swift Networking this skilljohnrogers/claude-swift-engineering | 231 | — | ~701 | Automated safety check: Pass | MIT | |
| Apple Crash Log .NET Symbolicationdotnet/skills | 5.6k | 1 repos | ~2.4k | Automated safety check: Pass | MIT | |
| iOS Memgraph Analysisdpearson2699/swift-ios-skills | 1.2k | — | ~2.4k | Automated safety check: Pass | Custom licence | |
| Audit Build Warningsbitwarden/ios | 695 | — | ~1.9k | Automated safety check: Pass | GPL-3.0 | |
| iOS Reviewplayer-ui/player | 101 | — | ~1.6k | Automated safety check: Pass | MIT | |
| Releasevaayne/mori | 303 | — | ~1.2k | Automated safety check: Pass | MIT |
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- Official
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dpearson2699/swift-ios-skills
A skill your agent uses when capturing or analyzing an iOS .memgraph, especially when the task mentions a memory leak, heap growth, persistent memory increase, ownership path, or matched-capture…
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Audit Build Warnings
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Build the Bitwarden iOS app, capture all compiler and lint warnings, categorize them into Swift 6 concurrency vs actionable, and interactively fix the actionable ones.
iOS Review
player-ui/player
Review Swift/iOS code against team conventions. An agent skill from player-ui/player.
Release
vaayne/mori
Release workflow for Mori macOS workspace terminal and MoriRemote iOS app.
Anishelf Release
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Prepare and publish AniShelf source-control releases through validation, release commits, annotated tags, and the main-to-release pull request.
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Related
Works with
Categories
Questions about Swift Networking
What does Swift Networking do?
A skill your agent uses when implementing Network.framework connections (NWConnection, NetworkConnection), debugging connection failures, migrating from sockets/URLSession streams, or handling…. Swift Networking is an agent skill from johnrogers/claude-swift-engineering.framework connections (NWConnection, NetworkConnection), debugging connection failures, migrating from sockets/URLSession streams, or handling network transitions.
When should I use Swift Networking?
Swift Networking fits situations like: implementing Network.framework connections (NWConnection; networkConnection); debugging connection failures; migrating from sockets/URLSession streams.
How do I install Swift Networking in Claude Code?
Run `npx skills add johnrogers/claude-swift-engineering --skill swift-networking -a claude-code`. Or copy the skill folder (plugins/swift-engineering/skills/swift-networking in johnrogers/claude-swift-engineering) into .claude/skills/swift-networking in your project. Claude Code loads it when a task matches its description.
How do I install Swift Networking in Codex?
Run `npx skills add johnrogers/claude-swift-engineering --skill swift-networking -a codex`. Or copy the skill folder (plugins/swift-engineering/skills/swift-networking in johnrogers/claude-swift-engineering) into .agents/skills/swift-networking in your project. Codex loads it when a task matches its description.
Can I use Swift Networking 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 johnrogers/claude-swift-engineering --skill swift-networking -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/swift-networking, .gemini/skills/swift-networking, .github/skills/swift-networking and .opencode/skills/swift-networking in your project.
What does Swift Networking need to run?
SKILL.md names no scripts, command-line tools or credentials: Swift Networking is instructions for the agent only.
Does Swift Networking 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 Swift Networking 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 Swift Networking use?
Swift Networking is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Swift Networking use?
About 701 tokens (SKILL.md is roughly 2.8k 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 3.7k tokens, read only when the agent opens those files.
What are the alternatives to Swift Networking?
Skills that share tags, products or a category with Swift Networking: Apple Crash Log .NET Symbolication (dotnet/skills, 5.6k stars), iOS Memgraph Analysis (dpearson2699/swift-ios-skills, 1.2k stars), Audit Build Warnings (bitwarden/ios, 695 stars) and iOS Review (player-ui/player, 101 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Swift Networking?
johnrogers (a GitHub user) maintains it in johnrogers/claude-swift-engineering, which has 231 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on January 18, 2026.
Source: johnrogers/claude-swift-engineering on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.