swift-concurrency

swift-concurrency18 wordsCuratedinstall-now-after-trust-gate

Curated third-party skill source. Run external-skill-auditor before repo promotion.

Quick Start

Install:

npx skills add avdlee/swift-concurrency-agent-skill --skill swift-concurrency -y -g -a antigravity claude-code codex crush cursor gemini-cli github-copilot grok opencode

Use: /swift-concurrency

Works with Claude Code, Gemini CLI, OpenCode, and other agentskills.io-compatible agents.

Curated external (hand-maintained)

Composed compose-external-wave-12 using authoring SSOT (docs/src/authoring/skills/swift-concurrency.mdx) + research. Do not run wagents docs generate on this file (HAND-MAINTAINED sentinel). Run external-skill-auditor before using in production or promoting.

What It Does

Swift Concurrency Agent Skill: expert guidance for AI coding tools on safe concurrency, performance optimization, and Swift 6+ migration. Distilled from Swift Concurrency Course by Antoine van der Lee. Covers choosing async/await vs actors vs tasks vs groups; @MainActor/custom actors/nonisolated; Sendable conformance; isolation domains & data races prevention; actor reentrancy/retain cycles avoidance; task lifecycle/cancellation/priorities; async sequences/streams; memory (isolated deinit, weak); performance (contention, suspension, Instruments); testing (Swift Testing/XCTest, withMainSerialExecutor, @MainActor handling); Core Data integration (NSManagedObjectID, DAO, custom executors); linting/migration strategies; latest Swift 6.2 features (default actor isolation, approachable concurrency, etc). Non-opinionated, compile-time safety focus. Practical references + decision trees. MIT.

Harness Coverage

Targets verified harnesses: antigravity, claude-code, codex, crush, cursor, gemini-cli, github-copilot, grok, opencode.

Portable multi-harness install command:

npx skills add avdlee/swift-concurrency-agent-skill --skill swift-concurrency -y -g -a antigravity claude-code codex crush cursor gemini-cli github-copilot grok opencode

Trust / Audit

Trust tier: Curated (curated-trust-gated)

Curated status: install-now-after-trust-gate

Risk notes: Curated third-party skill source. Run external-skill-auditor before repo promotion.

Entry maintained via authoring + research for compose-external-wave-12; provenance and audit notes are authoritative there (research context is advisory).

Install Prerequisites

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┌ skills │ │ Tip: use the —yes (-y) and —global (-g) flags to install without prompts. [?25l│ ◇ Source: https://github.com/avdlee/swift-concurrency-agent-skill.git [?25h[?25l│ ◒ Cloning repository◐ Cloning repository◓ Cloning repository◑ Cloning repository◒ Cloning repository◐ Cloning repository◓ Cloning repository◑ Cloning repository◒ Cloning repository.◇ Repository cloned [?25h[?25l│ ◇ Found 1 skill [?25h│ ● Selected 1 skill: swift-concurrency │ ■ Invalid agents: grok │ ● Valid agents: aider-desk, amp, antigravity, antigravity-cli, astrbot, autohand-code, augment, bob, claude-code, openclaw, cline, codearts-agent, codebuddy, codemaker, codestudio, codex, command-code, continue, cortex, crush, cursor, deepagents, devin, dexto, droid, firebender, forgecode, gemini-cli, github-copilot, goose, hermes-agent, inference-sh, jazz, junie, iflow-cli, kilo, kimi-code-cli, kiro-cli, kode, lingma, loaf, mcpjam, mistral-vibe, moxby, mux, opencode, openhands, ona, pi, qoder, qoder-cn, qwen-code, replit, reasonix, rovodev, roo, tabnine-cli, terramind, tinycloud, trae, trae-cn, warp, windsurf, zed, zencoder, zenflow, neovate, pochi, promptscript, adal, universal

status=install-now-after-trust-gate; selector=source-spec or named. Supports Claude plugin (personal or .claude/settings.json for teams), pi, manual. Requires compatible agent with skills support. See README for verification (agent should reference triage/playbook).

Public Metadata

Field	Value
Source Type	curated-external
Display Source	avdlee/swift-concurrency-agent-skill
Source Kind	github
Installability	portable command
Review State	curated
Trust Tier	curated-trust-gated
Target Agents	antigravity, claude-code, codex, crush, cursor, gemini-cli, github-copilot, grok, opencode

General

Field	Value
Name	swift-concurrency

Curated catalog entry

docs/src/authoring/skills/swift-concurrency.mdx (full SSOT excerpt)

---
name: "swift-concurrency"
description: "Curated third-party skill source. Run external-skill-auditor before repo promotion."
title: "Swift Concurrency"
source_kind: "curated-external"
source: "avdlee/swift-concurrency-agent-skill"
install_source: "avdlee/swift-concurrency-agent-skill"
status: "install-now-after-trust-gate"
trust_tier: "curated-trust-gated"
provenance_status: "verified-install-command"
install_command: "npx skills add avdlee/swift-concurrency-agent-skill --skill swift-concurrency -y -g -a antigravity claude-code codex crush cursor gemini-cli github-copilot grok opencode"
target_agents: [antigravity, claude-code, codex, crush, cursor, gemini-cli, github-copilot, grok, opencode]
source_url: "https://github.com/avdlee/swift-concurrency-agent-skill"
notes: "Curated third-party skill source. Run external-skill-auditor before repo promotion."
risk_notes: "Curated third-party skill source. Run external-skill-auditor before repo promotion."
promotion_policy: "Install only after trust gate; audit again before repo promotion."
provenance_evidence: "Curated `npx skills add` command with named `--skill` selectors under `install-now-after-trust-gate` in config/external-skills.md."
---

{/* GENERATED-AUTHORING: source=config/external-skills.md; entry=swift-concurrency; re-run migration to refresh */}

Curated third-party skill source. Run external-skill-auditor before repo promotion.

Install / provenance (from authoring frontmatter + research):

Field	Value
install_command	npx skills add avdlee/swift-concurrency-agent-skill --skill swift-concurrency -y -g -a antigravity claude-code codex crush cursor gemini-cli github-copilot grok opencode
source	avdlee/swift-concurrency-agent-skill
source_url	https://github.com/avdlee/swift-concurrency-agent-skill
trust_tier	curated-trust-gated
curated_status	install-now-after-trust-gate
target_agents	antigravity, claude-code, codex, crush, cursor, gemini-cli, github-copilot, grok, opencode

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