skill-architecture

skill-architecture is a skill for Claude Code, Codex from proxify-dev/agentic-playbook. It costs 81 tokens per session (492 once invoked), scanned A, original, no licence file.

A guide to designing skills for coding agents, covering when they are used, how much context they provide, where their instructions are stored, and how those instructions are framed.

In plain words
What is it for?
Use it when creating, restructuring, or reviewing agent skills.
Why use it?
It helps prevent skills from being missed, shown at the wrong time, or filled with unnecessary instructions.

Skill for Claude CodeCodex

Part of the claude-code plugin — 4 skills, 1 hook shipped together

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.

agentmods
npx agentmods add skills/proxify-dev/agentic-playbook/skill-architecture
Any agent
npx skills add proxify-dev/agentic-playbook --skill skill-architecture
Clone the repo
git clone --depth 1 https://github.com/proxify-dev/agentic-playbook

Made for: Claude Code, Codex.

Or install claude-code, the plugin that ships this one along with the rest of its 4 skills, 1 hook.

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 skill-architecture

README.md
[![agentmods](https://agentmods.dev/badge/skills/proxify-dev/agentic-playbook/skill-architecture.svg)](https://agentmods.dev/skills/proxify-dev/agentic-playbook/skill-architecture)
Your own site
<a href="https://agentmods.dev/skills/proxify-dev/agentic-playbook/skill-architecture"><img src="https://agentmods.dev/badge/skills/proxify-dev/agentic-playbook/skill-architecture.svg" alt="Measured on agentmods" height="20"></a>
Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 492 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00081 $0.00492
Opus 5 $0.00041 $0.00246
Sonnet 5 $0.00016 $0.00098
Haiku 4.5 $0.00008 $0.00049

Measured 3d ago against content hash d4c085d88ba8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

skill-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 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.

skills/skill-architecture/SKILL.md · 22 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 22 lines · 81 tokens per session scan A d4c085d88ba8

Subscribe to this mod's changes

skill-architecture is a skill published in the GitHub repository proxify-dev/agentic-playbook (2 stars, last pushed 11d ago), with no licence file. It adds 81 tokens to every session and 492 once invoked, about $0.0004 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.