What is agent-native-design?

A guide for designing command-line tools and interfaces that AI agents can use as well as people.

Designing, reviewing, or refactoring a CLI, or adapting an API or software development kit into a CLI.

It helps address cases where a CLI works for humans but is difficult for agents to discover, understand, or operate.

agent-native-design — Skill for Codex by Agents365-ai/365-skills

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 Agents365-ai/365-skills --skill agent-native-design

Clone the repo

git clone --depth 1 https://github.com/Agents365-ai/365-skills

Made for: Codex.

Its marketplace also offers this one on its own, as the plugin agent-native-design — /plugin install agent-native-design after adding the marketplace above.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/agents365-ai/365-skills/agent-native-design/github.svg)](https://agentmods.dev/skills/agents365-ai/365-skills/agent-native-design)

Your own site

<a href="https://agentmods.dev/skills/agents365-ai/365-skills/agent-native-design"><img src="https://agentmods.dev/badge/skills/agents365-ai/365-skills/agent-native-design/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/agents365-ai/365-skills/agent-native-design"><img src="https://agentmods.dev/badge/skills/agents365-ai/365-skills/agent-native-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,953 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. Third-party audits

Socket pass 14 Sept 2026
Snyk pass 14 Sept 2026

How audits are shown

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.

Model	Per session	Once invoked
Fable 5.1	$0.00038	$0.02953
Opus 5.5	$0.00015	$0.01181
Sonnet 5.5	$0.00008	$0.00591
Haiku 4.5	$0.00004	$0.00295

Measured 1mo ago against content hash 35479432026b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-native-design 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 1mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/validate-metadata.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

plugins/agent-native-design/skills/agent-native-design/SKILL.md · 241 lines

The source is not reproduced here

No licence file

Read it on GitHub

Files

What ships with it

9 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.

1mo ago Changed 35479432026b
2mo ago Changed · -24 lines 7d3b33b3b1b7
2mo ago First seen · 265 lines · 38 tokens per session scan A fd958d538851

Subscribe to this mod's changes

agent-native-design is a skill published in the GitHub repository Agents365-ai/365-skills (100 stars, last pushed 4d ago), with no licence file. It adds 38 tokens to every session and 2,953 once invoked, about $0.0002 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.

Building agents Claude Code agent-skills cli diagram drawio image-generation

agent-native-design next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
agent-native-designAgents365-ai/365-skills	Skill	100	4d ago	none	A	38	Codex
drawio-skillAgents365-ai/drawio-skill	Skill	11k	5d ago	MIT	A	107	Claude Code, Codex
cocosketchSnowflake-Labs/cocoplus	Skill	727	2d ago	MIT	A	20	Claude Code
diagram-skillCodingFeng101/CanvasAnvil	Skill	160	yesterday	MIT	A	55	Codex
cad-skillCodingFeng101/CanvasAnvil	Skill	160	yesterday	MIT	A	53	Codex
ppt-skillCodingFeng101/CanvasAnvil	Skill	160	yesterday	MIT	A	43	Codex
bruce-drawiobruc3van/bruce-drawio	Skill	114	2mo ago	MIT	A	129	Claude Code, Codex