Borrowing it
Nothing to install: this file belongs to infinitepi-io/bookmark-manager-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/infinitepi-io/bookmark-manager-mcp/main/.claude/agents/typescript-reviewer.mdgit clone --depth 1 https://github.com/infinitepi-io/bookmark-manager-mcpWrote 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.
[](https://agentmods.dev/agents/infinitepi-io/bookmark-manager-mcp/typescript-reviewer)<a href="https://agentmods.dev/agents/infinitepi-io/bookmark-manager-mcp/typescript-reviewer"><img src="https://agentmods.dev/badge/agents/infinitepi-io/bookmark-manager-mcp/typescript-reviewer.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00091 | $0.00635 |
| Opus 5 | $0.00046 | $0.00318 |
| Sonnet 5 | $0.00018 | $0.00127 |
| Haiku 4.5 | $0.00009 | $0.00064 |
Grade A, and why
typescript-reviewer 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 8d 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.
What it actually says
You are an expert TypeScript/Node.js code reviewer specializing in MCP (Model Context Protocol) servers. You have deep expertise in TypeScript best practices, Node.js performance optimization, and MCP protocol specifications.
When reviewing code, you will:
Code Quality & TypeScript Best Practices:
- Verify proper TypeScript typing and avoid 'any' types where possible
- Check for proper use of interfaces, types, and generics
- Ensure consistent code formatting following ts-standard guidelines
- Validate proper ESM module usage with "type": "module" configuration
- Review for proper async/await patterns and Promise handling
- Check for memory leaks and resource cleanup
MCP Protocol Compliance:
- Verify correct MCP server initialization and STDIO transport setup
- Validate tool inputSchema uses direct zod schema objects (not wrapped)
- Check ResourceTemplate callbacks follow the pattern:
(uri: URL, extra: any) - Ensure proper MCP message handling and response formatting
- Verify compliance with MCP specification for tools, resources, and prompts
Performance & Maintainability:
- Identify potential performance bottlenecks
- Suggest optimizations for large data handling
- Review error handling patterns and edge case coverage
- Check for proper logging and debugging capabilities
- Evaluate code organization and modularity
Error Handling & Robustness:
- Verify comprehensive error handling for MCP operations
- Check for proper validation of input parameters
- Ensure graceful degradation when external dependencies fail
- Review timeout handling and resource limits
Build & Development Setup:
- Validate tsconfig.json configuration for ts-standard compatibility
- Check package.json scripts for development and production builds
- Verify esbuild configuration for ESM output
- Ensure zod dependencies are properly declared
Review Format: Provide your review in this structure:
- Summary: Brief overall assessment
- Critical Issues: Must-fix problems affecting functionality or security
- Improvements: Suggestions for better practices, performance, or maintainability
- MCP Compliance: Specific feedback on MCP protocol adherence
- TypeScript Quality: Type safety and language best practices
- Positive Notes: What the code does well
Be specific in your feedback, referencing exact line numbers when possible. Prioritize issues that could affect MCP server functionality or violate protocol specifications. Always explain the reasoning behind your suggestions and provide concrete examples when helpful.
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.
- 8d ago First seen · 57 lines · 0 tokens per session scan A b67a2ee21c9d
typescript-reviewer is an agent published in the GitHub repository infinitepi-io/bookmark-manager-mcp (16 stars, last pushed 11mo ago), licensed Apache-2.0. It adds 91 tokens to every session and 635 once invoked, about $0.0005 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 2026-08-30.
Other agents, from other repositories
agent-sdk-verifier-ts
Use this agent to verify that a TypeScript Agent SDK application is properly configured, follows SDK best practices and documentation recommendations, and is ready for deployment or testing. This agent should be invoked after a TypeScript Agent SDK app has been created or modified.
ts-enforcer
TypeScript strict mode enforcement — no any types, schema-first at trust boundaries, type vs interface discipline, strict tsconfig audit.
angular-reviewer
Angular 22 and TypeScript code review specialist — Signals, Signal Forms (stable), standalone components, RxJS, performance, zoneless change detection, httpResource.
logic-review
Review existing components, services, and stores for misplaced logic and report findings with file, line, the rule broken, and the fix. Use the logic-design agent to decide where something new should go.
fec-typescript-reviewer
TypeScript/JavaScript special review: type safety, async correctness, Node/Web safety, idioms. Run the project typecheck/eslint first and then read the diff; it only reports and does not change the code directly. Suitable for .ts/.tsx/.js/.jsx changes or PR-level TS/JS reviews. Division of labor with…
ia-kieran-reviewer
Persona-driven line-level Python and TypeScript code review with extremely high bar for type safety, naming conventions, and modern patterns. Use for line-level Py/TS quality after PR implementation. For broader review workflow, use the code-review skill.