Borrowing it
Nothing to install: this file belongs to Abdullah4AI/apple-developer-toolkit. 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/Abdullah4AI/apple-developer-toolkit/main/AGENTS.mdgit clone --depth 1 https://github.com/Abdullah4AI/apple-developer-toolkitWrote 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/abdullah4ai/apple-developer-toolkit/agents-md)<a href="https://agentmods.dev/instructions/abdullah4ai/apple-developer-toolkit/agents-md"><img src="https://agentmods.dev/badge/instructions/abdullah4ai/apple-developer-toolkit/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/abdullah4ai/apple-developer-toolkit/agents-md"><img src="https://agentmods.dev/badge/instructions/abdullah4ai/apple-developer-toolkit/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 | $0.00728 | $0.00728 |
| Opus 5.5 | $0.00291 | $0.00291 |
| Sonnet 5.5 | $0.00146 | $0.00146 |
| Haiku 4.5 | $0.00073 | $0.00073 |
Grade A, and why
apple-developer-toolkit 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 — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agentic Engineering Rules
This repository is updated from upstream on a recurring cadence. After every upstream sync, preserve or reapply the project-level agent rules below.
Core Principles
- Do not let temporary run state poison future agent behavior.
- Make tool permissions explicit before side effects.
- Keep observability artifacts for non-trivial runs.
- Route workflows through the right surface instead of guessing.
Memory Discipline
- Do not persist task logs, raw Apple docs output, generated code snippets, App Store state, build errors, credentials, or temporary decisions as long-term memory.
- Save only stable reusable facts: durable user preferences, environment conventions, tool quirks, or confirmed setup details.
- Prefer repo artifacts, run summaries, status files, and skill references for workflow state.
Tool Permission Design
Read-only by default:
node cli.js search,symbols,doc,overview,samples, andwwdc-*appledev store ... list/status/validate/diff/docs/doctor- Reading reference files, README files, config defaults, and docs
Requires explicit user approval before side effects:
- App Store Connect creates, updates, deletes, uploads, TestFlight publish, App Store submit, pricing, IAP, subscriptions, certificates, profiles, devices, webhooks, notarization, and Xcode Cloud runs
appledev buildactions that write a local project, fix files, launch simulators, install hooks, or invoke credentials- Any GitHub write action: commits, pushes, PR creation, merges, releases, tags, or workflow changes
Never use this repository or skill to post to X/Twitter or invoke any X publishing command.
Observability Requirements
For non-trivial runs, leave enough audit trail to understand what happened:
- Logs: preserve relevant command output or failure excerpts.
- Traces: state which surface was used:
node cli.js,appledev store, orappledev build. - Artifacts: write plans, diffs, reports, metadata exports, or build summaries to project-local files when appropriate.
- Status files: for long release or app-builder workflows, keep a compact status summary with current step, target app/project, next safe action, and blockers.
- Run summaries: finish with what was checked, what changed, what did not change, and remaining risks.
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 · 69 lines · 728 tokens per session scan A ac182c28572c
apple-developer-toolkit AGENTS.md is an instructions file published in the GitHub repository Abdullah4AI/apple-developer-toolkit (11 stars, last pushed 2d ago), licensed MIT. It adds 728 tokens to every session, about $0.0029 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-developer-toolkit AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| apple-developer-toolkit AGENTS.mdAbdullah4AI/apple-developer-toolkit | Instructions file | 11 | 2d ago | MIT | A | 728 | 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 |