how

how is a skill for Claude Code, Codex from Ertinox7711/SGRR-AGI-V2. It costs 28 tokens per session (1,635 once invoked), scanned A, a copy of how, MIT.

A codebase-exploration tool that explains how a feature, subsystem, or runtime flow works. It can also critique the architecture, meaning the way the system is divided and connected.

In plain words
What is it for?
Use it to trace request flows, understand authentication or billing structure, explain individual functions, and onboard someone to a subsystem.
Why use it?
It reduces the time needed to build a mental model of unfamiliar code and makes it easier to find architectural problems before changing the system.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Use it to trace request flows, understand authentication or billing structure, explain individual functions, and onboard someone to a subsystem.

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Install with agentmods
npx agentmods add skills/ertinox7711/sgrr-agi-v2/how
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 Ertinox7711/SGRR-AGI-V2 --skill how
Clone the repo
git clone --depth 1 https://github.com/Ertinox7711/SGRR-AGI-V2

Made for: Claude Code, 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 how

README.md
[![agentmods](https://agentmods.dev/badge/skills/ertinox7711/sgrr-agi-v2/how/github.svg)](https://agentmods.dev/skills/ertinox7711/sgrr-agi-v2/how)
Your own site
<a href="https://agentmods.dev/skills/ertinox7711/sgrr-agi-v2/how"><img src="https://agentmods.dev/badge/skills/ertinox7711/sgrr-agi-v2/how/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 how

Your own site · 80×15
<a href="https://agentmods.dev/skills/ertinox7711/sgrr-agi-v2/how"><img src="https://agentmods.dev/badge/skills/ertinox7711/sgrr-agi-v2/how.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,635 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 100% copy Near-identical to another mod 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 $0.00028 $0.01635
Opus 5 $0.00014 $0.00817
Sonnet 5 $0.00006 $0.00327
Haiku 4.5 $0.00003 $0.00163

Measured 3d ago against content hash 2dd4d2818db0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

how 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 3d 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.

Origin

This is a copy

100% identical to how — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/how/SKILL.md · 141 lines

How it starts

The opening of the file, as written. The whole thing — 141 lines — stays where its author put it; the contents beside it link to each section on GitHub.

How

Explore the codebase to answer "how does X work?" questions. Produce clear architectural explanations at the level of a senior engineer onboarding onto a subsystem — enough to build a working mental model, not so much that it reads like annotated source code.

Two modes:

  1. Explain (default) — explore the codebase and produce a clear explanation
  2. Critique — explain first, then spawn multiple models to independently identify architectural issues

Explain Mode

Step 1 — Understand the Question and Assess Complexity

Parse what the user is asking about. They might say:

  • "How does message virtualization work?" — a subsystem
  • "How do we handle billing for on-demand usage?" — a feature flow
  • "How is the auth service structured?" — an architectural overview
  • "Walk me through what happens when a user sends a message" — a runtime trace

Identify the scope. If it's ambiguous, make your best guess and state your interpretation before exploring. Don't ask — explore and let the user redirect if you're off.

Assess complexity to decide the approach:

  • Simple (a single module, a small utility, a narrow question like "how does function X work"): Skip explorer agents entirely. The explainer agent explores and explains in a single pass. Go directly to Step 2b.
  • Complex (a subsystem spanning multiple files/services, a cross-cutting feature, a full architectural overview): Spawn parallel explorer agents first, then hand off to the explainer. Go to Step 2a.

When in doubt, lean toward the simple path — you can always spawn explorers if the explainer hits a wall.

Step 2a — Explore (complex questions only)

Decompose the question into 2-4 parallel exploration angles. Each angle should cover a distinct slice of the subsystem so the explorers aren't duplicating work. For example, if the question is "how does message virtualization work?", you might split into:

  • Explorer 1: the data model and state management
  • Explorer 2: the rendering pipeline and DOM interaction
  • Explorer 3: the scroll/measurement infrastructure

Read the full file on GitHub · 141 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. 3d ago First seen · 141 lines · 28 tokens per session scan A 2dd4d2818db0

Subscribe to this mod's changes

how is a skill published in the GitHub repository Ertinox7711/SGRR-AGI-V2 (1 stars, last pushed 4d ago), licensed MIT. It adds 28 tokens to every session and 1,635 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to how, differing in 0 lines, and is treated as a copy.

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