swiftlint

swiftlint is a skill for Claude Code, Codex from TalissonVitorino/kmp-ios-skills. It costs 251 tokens per session (4,211 once invoked), scanned A, original, MIT.

A guide to setting up SwiftLint, a tool that checks Swift code for style and common problems, in an iOS or Kotlin Multiplatform app.

In plain words
What is it for?
Use it to write SwiftLint configuration, connect linting to Xcode and continuous integration, define custom rules, set rule severity, and handle legacy violations.
Why use it?
It helps teams apply consistent code rules and stop new violations without having to clean up the entire existing codebase at once.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to write SwiftLint configuration, connect linting to Xcode and continuous integration, define custom rules, set rule severity, and handle legacy violations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/talissonvitorino/kmp-ios-skills/swiftlint
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add TalissonVitorino/kmp-ios-skills --skill swiftlint
Clone the repo
git clone --depth 1 https://github.com/TalissonVitorino/kmp-ios-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for swiftlint

README.md
[![agentmods](https://agentmods.dev/badge/skills/talissonvitorino/kmp-ios-skills/swiftlint/github.svg)](https://agentmods.dev/skills/talissonvitorino/kmp-ios-skills/swiftlint)
Your own site
<a href="https://agentmods.dev/skills/talissonvitorino/kmp-ios-skills/swiftlint"><img src="https://agentmods.dev/badge/skills/talissonvitorino/kmp-ios-skills/swiftlint/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for swiftlint

Your own site · 80×15
<a href="https://agentmods.dev/skills/talissonvitorino/kmp-ios-skills/swiftlint"><img src="https://agentmods.dev/badge/skills/talissonvitorino/kmp-ios-skills/swiftlint.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 251 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,211 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00251 $0.04211
Opus 5 $0.00125 $0.02106
Sonnet 5 $0.00050 $0.00842
Haiku 4.5 $0.00025 $0.00421

Measured 8d ago against content hash 6b03d967e65a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

swiftlint scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

ios/swiftlint/SKILL.md · 341 lines

How it starts

The opening of the file, as written. The whole thing — 341 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SwiftLint (iOS / Swift)

Static analysis and style enforcement for Swift. This skill covers configuration authoring, build integration, and rollout — grounded in the realm/SwiftLint and SimplyDanny/SwiftLintPlugins docs. For a fintech codebase the goal is a lint gate that blocks new violations without a big-bang cleanup of the existing ones.

  • SwiftLint has two rule engines: lint rules (syntactic, AST via SourceKit) run by swiftlint lint (default), and analyzer rules run by swiftlint analyze against a compiler log.
  • Ships default-on rules plus a large opt-in set. swiftlint rules lists every rule and whether it's enabled; swiftlint reporters lists output formats.

Contents

Install

Pin the version so every machine and CI runner lints identically — a floating SwiftLint silently changes what fails.

brew install swiftlint          # local dev (unversioned; fine for editors)
mint install realm/SwiftLint    # Mintfile-pinned
  • Preferred for reproducibility: the SPM build-tool plugin (below) — it vendors a pinned binary per package, so no separate install step and no version drift between developers and CI.
  • Avoid the CocoaPods SwiftLint pod on new projects; the SPM plugin supersedes it.

.swiftlint.yml

Place at the repo root (or a target/subdirectory root — SwiftLint walks up from each file and applies the nearest config). Keys:

# --- rule selection ---
disabled_rules:            # turn OFF default-on rules
  - todo
  - trailing_whitespace

opt_in_rules:              # turn ON rules that are off by default
  - empty_count
  - first_where
  - force_unwrapping
  - explicit_init
  - all                    # special: enable EVERY opt-in rule (minus disabled_rules)

# only_rules:              # allow-list: ONLY these run. Mutually exclusive with
#   - force_cast           # disabled_rules AND opt_in_rules — do not combine.
#   - force_try

analyzer_rules:            # separate list, run only by `swiftlint analyze` (all opt-in)
  - unused_import
  - unused_declaration

# --- paths (case-sensitive, relative to the config file) ---
included:                  # if set, lint ONLY these (still minus `excluded`)
  - Sources
excluded:                  # skip these; wins over `included`
  - Tests
  - .build
  - Pods
  - "**/Generated"         # generated code (protobuf, Sourcery, R.swift) — never lint

# --- output ---
reporter: "xcode"          # default; see Reporters section

# --- global severity ---
strict: false              # true → warnings become errors (nonzero exit)
lenient: false             # true → errors become warnings (never fails)

Read the full file on GitHub · 341 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 341 lines · 251 tokens per session scan A 6b03d967e65a

Subscribe to this mod's changes

swiftlint is a skill published in the GitHub repository TalissonVitorino/kmp-ios-skills (12 stars, last pushed 17d ago), licensed MIT. It adds 251 tokens to every session and 4,211 once invoked, about $0.0013 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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