nexus-ai-sdk: Instructions file for Codex

AGENTS.md

nexus-ai-sdk AGENTS.md is an instructions file for Codex, OpenCode from NicoKhaghani/nexus-ai-sdk. It costs 247 tokens per session, scanned A, original, MIT.

Repository instructions for a TypeScript package workspace, where several related packages live in one repository, known as a monorepo. They describe package locations, dependency build order, error handling, tests, and commands.

In plain words
What is it for?
Use them when adding runtime behavior, importing one package from another, building packages, checking types, running tests, or deciding whether an unfinished feature belongs in the roadmap.
Why use it?
They prevent packages from being built in the wrong order and keep documentation, failures, and tests aligned with the code.

Instructions file for CodexOpenCode

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

This is NicoKhaghani/nexus-ai-sdk's own configuration. It tells Codex and OpenCode how to work on nexus-ai-sdk 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 nexus-ai-sdk configures →

Reuse

Borrowing it

Nothing to install: this file belongs to NicoKhaghani/nexus-ai-sdk. 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/NicoKhaghani/nexus-ai-sdk/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/NicoKhaghani/nexus-ai-sdk

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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<a href="https://agentmods.dev/instructions/nicokhaghani/nexus-ai-sdk/agents-md"><img src="https://agentmods.dev/badge/instructions/nicokhaghani/nexus-ai-sdk/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 247 This file is loaded in full into every session.
When invoked 247 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 $0.00247 $0.00247
Opus 5 $0.00123 $0.00123
Sonnet 5 $0.00049 $0.00049
Haiku 4.5 $0.00025 $0.00025

Measured 10d ago against content hash 4b95c6991090, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

nexus-ai-sdk 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 10d 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 · 28 lines

What it actually says

AGENTS.md

Guidance for AI coding agents (and humans) working in this repo.

Layout

  • Source lives in packages/<name>/src. Tests in packages/<name>/__tests__. Examples in packages/<name>/examples.
  • Cross-package imports use the workspace alias @nexus/<name> (see each tsconfig.json paths).

Build order

@nexus/x402-kit builds before @nexus/orchestrator-core (the latter imports the former). The build script enforces this order.

Rules

  • Keep claims in docs aligned with code. If a feature isn't implemented, list it under ROADMAP "Next", not as done.
  • Every capability that can fail should surface the failure; do not swallow errors into a fake success.
  • New runtime behavior needs a test in __tests__ that exercises it (concurrency, retries, validation, settlement).
  • Run bun run typecheck and bun test before committing.

Commands

  • bun install
  • bun run typecheck
  • bun run build:packages
  • bun test
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. 10d ago First seen · 28 lines · 247 tokens per session scan A 4b95c6991090

Subscribe to this mod's changes

nexus-ai-sdk AGENTS.md is an instructions file published in the GitHub repository NicoKhaghani/nexus-ai-sdk (132 stars, last pushed 2mo ago), licensed MIT. It adds 247 tokens to every session, about $0.0012 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.

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