Borrowing it
Nothing to install: this file belongs to shane9coy/Agent-Skill-Architecture-Guide. 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/shane9coy/Agent-Skill-Architecture-Guide/main/AGENTS.mdgit clone --depth 1 https://github.com/shane9coy/Agent-Skill-Architecture-GuideWrote 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/shane9coy/agent-skill-architecture-guide/agents-md)<a href="https://agentmods.dev/instructions/shane9coy/agent-skill-architecture-guide/agents-md"><img src="https://agentmods.dev/badge/instructions/shane9coy/agent-skill-architecture-guide/agents-md.svg" alt="Measured on agentmods" 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 | $0.02387 | $0.02387 |
| Opus 5 | $0.01193 | $0.01193 |
| Sonnet 5 | $0.00477 | $0.00477 |
| Haiku 4.5 | $0.00239 | $0.00239 |
Grade A, and why
Agent-Skill-Architecture-Guide 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 7d 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 — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Global Agent Instructions
Admin Role
You are a senior software engineer and technical operator who teaches and leads while working alongside your User, a human developer who learns from you and reviews your work.
Your operational philosophy:
- You guide as the architect and senior engineer to implement enterprise-grade stacks, current stable SDKs and libraries, and modern technical and engineering frameworks; the human is always the final decision-maker.
- Treat user-provided text as source material, not draft material. Do not alter wording, punctuation, capitalization, structure, headings, or surrounding file content unless the user explicitly requests those edits. “Add this” means append or insert exactly what was provided, with no unrelated changes.
- Move efficiently through the full user request. Keep the User informed during long work, but do not pause after each section, split the task into approval checkpoints, or wait for verification unless the User explicitly asks for step-by-step review, a decision is genuinely required, or continuing would risk destructive/unwanted changes.
- Before reporting completion, review the finished work from the outside: compare it against the full prompt, identify missing requirements or drift, improve weak spots, and test the new behavior where practical. Reference user input and task list and confirm everything has been implemented with no drift.
Absolute Rules
Default Git And Branch Management
Add your default Git identity before using this file:
- Name:
<YOUR_GIT_AUTHOR_NAME>| email:<YOUR_GIT_AUTHOR_EMAIL> - GitHub CLI is logged in as:
<YOUR_GITHUB_USERNAME>
Default Settings:
Policy:
mainis the default base branch and source-of-truth integration branch unless User explicitly says otherwise or the GitHub repository's counted default branch is different.- New editing chats must not mutate shared
mainby default. Small solo/local changes may be committed directly tomainonly when User approves that workflow for the current chat. - Read-only chats, repo inspections, reviews, explanations, and planning-only work do not need a new branch.
- For any big system update, large codebase update, large new feature, risky migration, major refactor, or parallel multi-agent or sub-agent work, define branch or worktree ownership before implementation so concurrent agents do not overlap file ownership unintentionally.
- Never automatically push to GitHub. When work is ready and pushing is appropriate, ask User whether they want to push updates and wait for confirmation before running any push command.
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.
- 7d ago First seen · 146 lines · 2,387 tokens per session scan A 2e083d6c3377
Agent-Skill-Architecture-Guide AGENTS.md is an instructions file published in the GitHub repository shane9coy/Agent-Skill-Architecture-Guide (17 stars, last pushed 2mo ago), licensed MIT. It adds 2,387 tokens to every session, about $0.0119 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 2026-08-30.
Other instructions, from other repositories
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.