neo-skills: Instructions file for Codex

AGENTS.md

neo-skills AGENTS.md is an instructions file for Codex, OpenCode from Benknightdark/neo-skills. It costs 777 tokens per session, scanned A, original, MIT.

A set of instructions for a Node.js and JavaScript project called neo-skills. It documents the project's architecture expectations, commands, nine-stage development workflow, and forbidden patterns.

In plain words
What is it for?
Use it to guide development, testing, syntax checks, builds, and self-review in neo-skills. It is also a reference for the exact commands and workflow stages the project expects.
Why use it?
It gives coding agents a defined process for reproducing problems, making small changes, checking their work, and reviewing the result. It also helps prevent unrequested dependencies and inconsistent project structure.

Instructions file for CodexOpenCode

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

This is Benknightdark/neo-skills's own configuration. It tells Codex and OpenCode how to work on neo-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 neo-skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Benknightdark/neo-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/Benknightdark/neo-skills/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/Benknightdark/neo-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.

agentmods badge for neo-skills AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/benknightdark/neo-skills/agents-md/github.svg)](https://agentmods.dev/instructions/benknightdark/neo-skills/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/benknightdark/neo-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/benknightdark/neo-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.

agentmods 80×15 button for neo-skills AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/benknightdark/neo-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/benknightdark/neo-skills/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 777 This file is loaded in full into every session.
When invoked 777 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 $0.00777 $0.00777
Opus 5 $0.00388 $0.00388
Sonnet 5 $0.00155 $0.00155
Haiku 4.5 $0.00078 $0.00078

Measured 9d ago against content hash 9f5e249c2307, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

neo-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 9d 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 · 63 lines

How it starts

The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.

neo-skills AGENTS.md


1. Project Overview

  • Primary Technology Stack: Node.js / JavaScript
  • Coding & Architectural Conventions:
    • Follow modular architecture and existing code formatting.
    • Inspect existing implementation files before creating new utilities.
    • Do NOT introduce unrequested third-party dependencies.

2. Commands

List exact command lines used for project development, testing, linting, typechecking, and building:

Command Type Exact Command Line Purpose / Scope
Unit / Integration Tests npm test Verify behavioral correctness
Skill Syntax Check python3 scripts/check-skills-syntax.py Verify skill markdown and frontmatter syntax
Build Check npm run build Confirm clean compilation

3. Workflow

The development workflow strictly follows this 9-stage closed loop:

graph TD
    Step1[1. Perceive Task] --> Step2[2. Establish Baseline]
    Step2 --> Step3[3. Reproduce Problem]
    Step3 --> Step4[4. Plan Edits]
    Step4 --> Step5[5. Minimal Implementation]
    Step5 --> Step6[6. Incremental Verification]
    Step6 --> Step7[7. Self-Review]
    Step7 -->|Fail| Step4
    Step7 -->|Pass| Step9[9. Handoff upon Pass]
  1. Perceive Task: Read project guidelines (AGENTS.md) and target source files to understand goals and constraints.
  2. Establish Baseline: Run existing test and build commands to confirm the project is in a stable, passing state.
  3. Reproduce Problem: Write or run test cases/verification steps that reliably reproduce the issue or requirement.
  4. Plan Edits: Decompose the task into small, atomic edit plans to avoid large single-turn changes.
  5. Minimal Implementation: Apply minimal code changes while preserving existing comments and public API contracts.
  6. Incremental Verification: Run local test, lint, and build commands immediately after each edit.
  7. Self-Review: After an AI Agent finishes modifying code, tests, configuration, or scripts, activate neo-code-review and review the current uncommitted working tree with --working-tree. Inspect diffs and execution logs; if checks fail, read full un-truncated error logs to find the root cause.
  8. Remediate on Failure: If verification or review finds a critical issue, the review scope is unclear, or the skill cannot be loaded, do not declare completion or hand off. Return to "Plan Edits / Minimal Implementation", then rerun verification and neo-code-review after each remediation.
  9. Handoff upon Pass: Once all verification sensors pass, present a concise report with empirical proof for handoff.

Read the full file on GitHub · 63 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. 9d ago First seen · 63 lines · 777 tokens per session scan A 9f5e249c2307

Subscribe to this mod's changes

neo-skills AGENTS.md is an instructions file published in the GitHub repository Benknightdark/neo-skills (7 stars, last pushed 3d ago), licensed MIT. It adds 777 tokens to every session, about $0.0039 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 2026-08-31.

Related

Other instructions, from other repositories

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.

vercel/next.js · 7,296 tokens

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.

openai/codex · 5,153 tokens

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).

microsoft/vscode · 6,785 tokens

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).

microsoft/vscode · 5,001 tokens

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.

langchain-ai/langchain · 4,469 tokens

deepseek-harness AGENTS.md

AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.

deepseek-ai/deepseek-harness · 3,737 tokens