agentmods.dev

type-design

type-design is a skill for Claude Code, Codex from felipeblassioli/agent-skills. It costs 187 tokens per session (2,737 once invoked), scanned A, original, no licence file.

A method for designing TypeScript types so they describe the real rules of a domain and prevent invalid states from being represented. It is used for modeling and reviewing types, not just checking style.

In plain words
What is it for?
Use it when creating, reviewing, or refactoring TypeScript types and deciding how a concept should be represented in code.
Why use it?
It helps catch unclear or contradictory data models before they spread through an application.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

not rated 2repo 8d ago A scan 187 tokens no licence

Good fit Use it when creating, reviewing, or refactoring TypeScript types and deciding how a concept should be represented in code.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/felipeblassioli/agent-skills/type-design
View source ↗ felipeblassioli/agent-skills skills.sh
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 felipeblassioli/agent-skills --skill type-design
Clone the repo
git clone --depth 1 https://github.com/felipeblassioli/agent-skills

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 type-design

README.md
[![agentmods](https://agentmods.dev/badge/skills/felipeblassioli/agent-skills/type-design/github.svg)](https://agentmods.dev/skills/felipeblassioli/agent-skills/type-design)
Your own site
<a href="https://agentmods.dev/skills/felipeblassioli/agent-skills/type-design"><img src="https://agentmods.dev/badge/skills/felipeblassioli/agent-skills/type-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.

agentmods 80×15 button for type-design

Your own site · 80×15
<a href="https://agentmods.dev/skills/felipeblassioli/agent-skills/type-design"><img src="https://agentmods.dev/badge/skills/felipeblassioli/agent-skills/type-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 187 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,737 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 $0.00187 $0.02737
Opus 5.5 $0.00075 $0.01095
Sonnet 5.5 $0.00037 $0.00547
Haiku 4.5 $0.00019 $0.00274

Measured 2mo ago against content hash 949a3f88c2c0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

type-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 2mo 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/type-design/SKILL.md · 195 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. 2mo ago First seen · 195 lines · 187 tokens per session scan A 949a3f88c2c0

Subscribe to this mod's changes

type-design is a skill published in the GitHub repository felipeblassioli/agent-skills (2 stars, last pushed 8d ago), with no licence file. It adds 187 tokens to every session and 2,737 once invoked, about $0.0007 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 2026-09-03.

LanguagesTypeScript
Related

type-design compared with skills from other repositories

type-design next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
type-designfelipeblassioli/agent-skillsSkill28d agononeA187Claude Code, Codex
no-bare-castsprisma/ormSkill48kyesterdayApache-2.0A52Claude Code, Codex
aws-sst-developmentsickn33/agentic-awesome-skillsSkill49kyesterdayMITA26Claude Code
league-akari-shard-developmentLeagueAkari/LeagueAkariSkill4.7k6d agoMITA58Claude Code, Codex
dd-code-generationDataDog/pupSkill1.0ktodayApache-2.0A16Claude Code
fast-typescript-checkinternet-development/www-sacredSkill1.6k3d agoMITA84Claude Code, Codex
typescript-magicianmcollina/skillsSkill2.0k11d agoMITA108Claude Code, Codex