typescript-patterns

typescript-patterns is a skill for Claude Code from Nmor/the-claude-council. It costs 58 tokens per session (8,390 once invoked), scanned B, original, no licence file.

A guide to TypeScript's type system, including narrowing, generics, branded types, coding patterns, and strictness settings.

In plain words
What is it for?
Use it when editing TypeScript or TSX files and working with complex or strict types.
Why use it?
It helps prevent type errors and gives more specific advice than general coding standards.

Skill for Claude Code

Written for Claude Code: paths in frontmatter.

Good fit Use it when editing TypeScript or TSX files and working with complex or strict types.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nmor/the-claude-council/typescript-patterns
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 Nmor/the-claude-council --skill typescript-patterns
Clone the repo
git clone --depth 1 https://github.com/Nmor/the-claude-council

Made for: Claude Code.

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 typescript-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/nmor/the-claude-council/typescript-patterns/github.svg)](https://agentmods.dev/skills/nmor/the-claude-council/typescript-patterns)
Your own site
<a href="https://agentmods.dev/skills/nmor/the-claude-council/typescript-patterns"><img src="https://agentmods.dev/badge/skills/nmor/the-claude-council/typescript-patterns/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 typescript-patterns

Your own site · 80×15
<a href="https://agentmods.dev/skills/nmor/the-claude-council/typescript-patterns"><img src="https://agentmods.dev/badge/skills/nmor/the-claude-council/typescript-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,390 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00058 $0.08390
Opus 5 $0.00029 $0.04195
Sonnet 5 $0.00012 $0.01678
Haiku 4.5 $0.00006 $0.00839

Measured 6d ago against content hash e29d3e7ae308, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade B, and why

typescript-patterns scanned grade B with 1 finding 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 6d 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

Configure in `~/.claude/settings.json`:
skills/typescript-patterns/SKILL.md · 1,100 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. 6d ago Changed e29d3e7ae308
  2. 9d ago First seen · 1,100 lines · 58 tokens per session scan B 51542f5acd65

Subscribe to this mod's changes

typescript-patterns is a skill published in the GitHub repository Nmor/the-claude-council (9 stars, last pushed 5d ago), with no licence file. It adds 58 tokens to every session and 8,390 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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