Borrowing it
Nothing to install: this file belongs to gaelic-ghost/apple-dev-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/gaelic-ghost/apple-dev-skills/main/AGENTS.mdgit clone --depth 1 https://github.com/gaelic-ghost/apple-dev-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/instructions/gaelic-ghost/apple-dev-skills/agents-md)<a href="https://agentmods.dev/instructions/gaelic-ghost/apple-dev-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/gaelic-ghost/apple-dev-skills/agents-md/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/instructions/gaelic-ghost/apple-dev-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/gaelic-ghost/apple-dev-skills/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00647 | $0.00647 |
| Opus 5.5 | $0.00259 | $0.00259 |
| Sonnet 5.5 | $0.00129 | $0.00129 |
| Haiku 4.5 | $0.00065 | $0.00065 |
Grade A, and why
apple-dev-skills AGENTS.md 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 2mo 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.
How it starts
The opening of the file, as written. The whole thing — 40 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
This file is the Apple Dev Skills compatibility-repo override. Follow the root socket guidance for general git, docs, release, branch, and maintainer workflow rules when changing the canonical Socket-hosted payload.
Scope
- This repository is a compatibility marketplace and README pointer for users who installed
gaelic-ghost/apple-dev-skillsdirectly. - The canonical authored Apple Dev Skills payload now lives in
gaelic-ghost/socketunderplugins/apple-dev-skills. - Treat
productivity-skillsas the default baseline maintainer layer for general repo docs and maintenance work; this repo is the narrower specialist layer when Apple-specific behavior should change the workflow. - Preserve standalone-install guidance for public users who install only
apple-dev-skills, while leading new users to the Socket marketplace. - Keep
.agents/plugins/marketplace.jsonas the compatibility surface that redirects to the Socket subdirectory. - Do not add plugin payload,
.codex-plugin, or.agents/skillssurfaces back to this repository for new feature work; make payload changes in Socket.
Apple Rules
- For Swift, Apple framework, Apple platform, SwiftUI, SwiftData, Observation, AppKit, UIKit, Foundation-on-Apple, or Xcode-related guidance, require reading the relevant Apple documentation before proposing implementation changes.
- State the documented Apple behavior being relied on before design or code changes are proposed.
- If Apple docs and current code disagree, stop and surface that conflict.
- If no relevant Apple documentation can be found, say that explicitly before proceeding.
- Keep
explore-apple-swift-docsas the canonical docs-routing surface instead of re-embedding broad docs-source selection logic into execution skills. - Prefer framework-provided behavior over custom wrappers, coordinators, glue, or renaming layers unless a concrete constraint requires them.
- For Xcode app repos, tracked
.pbxprojchanges are critical project state when produced by Xcode, XcodeGen, or another project-aware workflow. - Treat
Package.resolvedand similar package-manager outputs as generated files. Do not tell maintainers or agents to hand-edit them.
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.
- 2mo ago First seen · 40 lines · 647 tokens per session scan A 19571556a538
apple-dev-skills AGENTS.md is an instructions file published in the GitHub repository gaelic-ghost/apple-dev-skills (9 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 647 tokens to every session, about $0.0026 per session on Opus 5.5. 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 2026-08-31.
apple-dev-skills AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| apple-dev-skills AGENTS.mdgaelic-ghost/apple-dev-skills | Instructions file | 9 | 4mo ago | Apache-2.0 | A | 647 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |