hai-architecture

hai-architecture is a skill for Codex from hylarucoder/hai-stack. It costs 128 tokens per session (1,694 once invoked), scanned A, original, no licence file.

An architecture review based on evidence from the codebase and on John Ousterhout’s software-design principles. It maps the system, identifies its main complexity center, applies selected review viewpoints, and ranks findings with file and line evidence.

In plain words
What is it for?
Use it to review an existing architecture or critique a proposed design, including alternatives, evidence, and adversarial checks.
Why use it?
It helps expose design problems and difficult trade-offs before they become more expensive to change. It also tests the review through opposing arguments and compares alternatives.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit Use it to review an existing architecture or critique a proposed design, including alternatives, evidence, and adversarial checks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/hylarucoder/hai-stack/hai-architecture
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add hylarucoder/hai-stack --skill hai-architecture
Clone the repo
git clone --depth 1 https://github.com/hylarucoder/hai-stack

Made for: Codex.

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 hai-architecture

README.md
[![agentmods](https://agentmods.dev/badge/skills/hylarucoder/hai-stack/hai-architecture/github.svg)](https://agentmods.dev/skills/hylarucoder/hai-stack/hai-architecture)
Your own site
<a href="https://agentmods.dev/skills/hylarucoder/hai-stack/hai-architecture"><img src="https://agentmods.dev/badge/skills/hylarucoder/hai-stack/hai-architecture/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 hai-architecture

Your own site · 80×15
<a href="https://agentmods.dev/skills/hylarucoder/hai-stack/hai-architecture"><img src="https://agentmods.dev/badge/skills/hylarucoder/hai-stack/hai-architecture.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 128 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,694 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00128 $0.01694
Opus 5.5 $0.00051 $0.00678
Sonnet 5.5 $0.00026 $0.00339
Haiku 4.5 $0.00013 $0.00169

Measured 16d ago against content hash 161c1cc69e8e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

hai-architecture 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 16d 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.

skills/hai-architecture/SKILL.md · 149 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 16d ago Changed · +15 lines · +16 tokens per session 161c1cc69e8e
  2. 1mo ago Changed · +10 lines · +6 tokens per session bf5447e35321
  3. 1mo ago Changed · -132 lines · -103 tokens per session ab0597e79f4e
  4. 1mo ago First seen · 256 lines · 209 tokens per session scan A 0c14828bcd24

Subscribe to this mod's changes

hai-architecture is a skill published in the GitHub repository hylarucoder/hai-stack (393 stars, last pushed 15d ago), with no licence file. It adds 128 tokens to every session and 1,694 once invoked, about $0.0005 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 2026-08-30.

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