apple-dev-skills: Instructions file for Codex

AGENTS.md

apple-dev-skills AGENTS.md is an instructions file for Codex, OpenCode from Syniox5334/apple-dev-skills. It costs 1,793 tokens per session, scanned A, original, Apache-2.0.

Repository guidance for maintaining a collection of Apple development skills. It defines where those skills belong and points to standards and documentation for creating, reviewing, and sharing them.

In plain words
What is it for?
Updating Apple-related agent skills, following the repository's contribution rules, and consulting guidance for skill files, agent instructions, MCP servers, and snippets.
Why use it?
It keeps changes in the correct development repository and gives contributors the project's expectations for skill quality and runtime behavior.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions Claude Code; mentions AGENTS.md; mentions Codex.

This is Syniox5334/apple-dev-skills's own configuration. It tells Codex and OpenCode how to work on apple-dev-skills itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything apple-dev-skills configures →

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /Users/galew/Workspace/apple-dev-skills.

Reuse

Borrowing it

Nothing to install: this file belongs to Syniox5334/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.

Copy the file
curl -O https://raw.githubusercontent.com/Syniox5334/apple-dev-skills/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/Syniox5334/apple-dev-skills

Made for: Codex, OpenCode.

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.

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README.md
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Your own site
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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.

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<a href="https://agentmods.dev/instructions/syniox5334/apple-dev-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/syniox5334/apple-dev-skills/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,793 This file is loaded in full into every session.
When invoked 1,793 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.01793 $0.01793
Opus 5.5 $0.00717 $0.00717
Sonnet 5.5 $0.00359 $0.00359
Haiku 4.5 $0.00179 $0.00179

Measured 2mo ago against content hash 443b899296b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

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.

AGENTS.md · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Repository Expectations

  • For work in this repository, edit skills only under /Users/galew/Workspace/apple-dev-skills.
  • Never modify production-installed skills under ~/.agents/skills while working in this development repository.
  • This file defines maintainer guidance for developing skills in this repository. Keep these links and rules at repo root for contributor workflows.

Standards and Guidance

Consult these resources when creating, updating, reviewing, or sharing skills:

Read the full file on GitHub · 117 lines

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. 2mo ago First seen · 117 lines · 1,793 tokens per session scan A 443b899296b9

Subscribe to this mod's changes

apple-dev-skills AGENTS.md is an instructions file published in the GitHub repository Syniox5334/apple-dev-skills (5 stars, last pushed 25d ago), licensed Apache-2.0. It adds 1,793 tokens to every session, about $0.0072 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.

Related

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deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file275k2d agoMITA4,313Codex, OpenCode