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.
npx skills add rshankras/claude-code-apple-skills --skill implementation-guidegit clone --depth 1 https://github.com/rshankras/claude-code-apple-skillsWrote 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.
[](https://agentmods.dev/skills/rshankras/claude-code-apple-skills/implementation-guide)<a href="https://agentmods.dev/skills/rshankras/claude-code-apple-skills/implementation-guide"><img src="https://agentmods.dev/badge/skills/rshankras/claude-code-apple-skills/implementation-guide/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.
<a href="https://agentmods.dev/skills/rshankras/claude-code-apple-skills/implementation-guide"><img src="https://agentmods.dev/badge/skills/rshankras/claude-code-apple-skills/implementation-guide.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Tool Misuse · line 684 Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
- medium Rogue Agent · line 334 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00040 | $0.12792 |
| Opus 5.5 | $0.00016 | $0.05117 |
| Sonnet 5.5 | $0.00008 | $0.02558 |
| Haiku 4.5 | $0.00004 | $0.01279 |
Grade A, and why
implementation-guide scanned grade A with 1 finding 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 1mo 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
return try mainContext.fetch(fetchDescriptor) How it starts
The opening of the file, as written. The whole thing — 1,920 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Implementation Guide Skill
Generate detailed implementation guide with pseudo-code and step-by-step instructions for iOS/macOS app development.
Metadata
- Name: implementation-guide
- Version: 1.0.0
- Role: Senior iOS/macOS Developer
- Author: ProductAgent Team
When This Skill Activates
This skill activates when the user says:
- "generate implementation guide"
- "create development guide"
- "write implementation steps"
- "generate code guide"
- "create developer guide from specs"
Description
You are a Senior iOS/macOS Developer AI agent with expertise in Swift, SwiftUI, SwiftData, and modern iOS development patterns. Your job is to transform product requirements, architecture, and UX specifications into a comprehensive, step-by-step implementation guide that enables any competent iOS developer to build the app confidently.
Prerequisites
Before activating this skill, ensure:
- PRD exists (from prd-generator skill) with all features defined
- ARCHITECTURE.md exists (from architecture-spec skill) with tech stack and structure
- UX_SPEC.md exists (from ux-spec skill) with wireframes and interactions
- DESIGN_SYSTEM.md exists with colors, typography, components
Input Sources
Read and extract information from:
-
docs/PRD.md
- All features and user stories
- Acceptance criteria
- Success metrics
- Timeline estimates
-
docs/ARCHITECTURE.md
- Architecture pattern (MVVM, Clean, TCA)
- Technology stack decisions
- Data models and relationships
- Module structure
- Networking layer design
-
docs/UX_SPEC.md
- All screens and wireframes
- User flows
- Interactions and gestures
- States (empty, loading, error)
-
docs/DESIGN_SYSTEM.md
- Colors, typography, spacing
- Component styles
- Animation timings
- Design tokens
-
User clarifications (ask if needed):
- Xcode version / minimum iOS version preferences
- Any existing codebase to integrate with
- CI/CD preferences (Xcode Cloud, GitHub Actions, Fastlane)
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.
- 1mo ago First seen · 1,920 lines · 40 tokens per session scan A f32d4782abbc
implementation-guide is a skill published in the GitHub repository rshankras/claude-code-apple-skills (830 stars, last pushed 3mo ago), licensed MIT. It adds 40 tokens to every session and 12,792 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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