code-reviewer-typescript

code-reviewer-typescript is a skill for Claude Code from korbinjoe/TeemAI. It costs 86 tokens per session (1,671 once invoked), scanned A, original, MIT.

A code-review guide for TypeScript files, the files commonly used to add types to JavaScript programs.

In plain words
What is it for?
Use it when reviewing non-React .ts files, including changed files in a pull request or recent Git changes.
Why use it?
It helps identify weak type definitions, unclear module structure, unsafe generic designs, and missing runtime checks.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it when reviewing non-React .ts files, including changed files in a pull request or recent Git changes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/korbinjoe/teemai/code-reviewer-typescript
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 korbinjoe/TeemAI --skill code-reviewer-typescript
Clone the repo
git clone --depth 1 https://github.com/korbinjoe/TeemAI

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 code-reviewer-typescript

README.md
[![agentmods](https://agentmods.dev/badge/skills/korbinjoe/teemai/code-reviewer-typescript/github.svg)](https://agentmods.dev/skills/korbinjoe/teemai/code-reviewer-typescript)
Your own site
<a href="https://agentmods.dev/skills/korbinjoe/teemai/code-reviewer-typescript"><img src="https://agentmods.dev/badge/skills/korbinjoe/teemai/code-reviewer-typescript/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 code-reviewer-typescript

Your own site · 80×15
<a href="https://agentmods.dev/skills/korbinjoe/teemai/code-reviewer-typescript"><img src="https://agentmods.dev/badge/skills/korbinjoe/teemai/code-reviewer-typescript.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 86 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,671 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 original 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 $0.00086 $0.01671
Opus 5.5 $0.00034 $0.00668
Sonnet 5.5 $0.00017 $0.00334
Haiku 4.5 $0.00009 $0.00167

Measured 1mo ago against content hash f0eb4240a505, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-reviewer-typescript 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.

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.

ai-assets/skills/code-reviewer-typescript/SKILL.md · 171 lines

How it starts

The opening of the file, as written. The whole thing — 171 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Positioning

Focused on TypeScript language-level type system and code structure review. Checks whether types are rigorous, designs are sound, and modules are clear.

Difference from code-reviewer-react: React skill focuses on component design and Hooks; this skill focuses on TS type gymnastics and module design. Difference from code-reviewer-nodejs: Node.js skill focuses on runtime behavior; this skill focuses on compile-time type safety.

Execution timing: When reviewing .ts files (non-React components) Scan scope: Specified files, or file list obtained via git diff


Review Process

Step 1: Determine Review Scope

Determine files to review by priority:

  1. Files or directories explicitly specified by user
  2. User mentions PR or branch → run git diff --name-only <base>..HEAD to get changed files
  3. User says "look at recent changes" → run git diff --name-only HEAD~1
  4. None of the above → ask user which files to review

Only review .ts files. Skip test files (*.test.* / *.spec.*), type declaration files (*.d.ts), and config files. For .tsx files, use the code-reviewer-react skill instead.

Step 2: Per-file Review

Read the complete file content first, understand context, then check each item. Execute the following review items for each file.

Step 3: Summary Report

Generate a structured report using the output template at the bottom.


Review Checklist

1. Type Safety

The type system is TypeScript's core value — loose types mean giving up compile-time protection.

Check items:

  • Using any type → replace with specific type or unknown
  • Using non-null assertion ! → use optional chaining ?. or type guards instead
  • Using type assertion as to bypass checks → check if there's a safer type narrowing approach
  • Whether unknown is properly narrowed after use (typeof / instanceof / custom type guards)
  • Function parameters and return values have explicit types (exported functions must have explicit annotations)
  • Whether implicit any exists (e.g., unannotated callback parameters, destructured assignments)

Read the full file on GitHub · 171 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. 1mo ago First seen · 171 lines · 86 tokens per session scan A f0eb4240a505

Subscribe to this mod's changes

code-reviewer-typescript is a skill published in the GitHub repository korbinjoe/TeemAI (2 stars, last pushed 3mo ago), licensed MIT. It adds 86 tokens to every session and 1,671 once invoked, about $0.0003 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 2026-08-31.

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