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.
git clone --depth 1 https://github.com/jpoutrin/product-forgeWrote 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/jpoutrin/product-forge/fastmcp-ts-expert)<a href="https://agentmods.dev/agents/jpoutrin/product-forge/fastmcp-ts-expert"><img src="https://agentmods.dev/badge/agents/jpoutrin/product-forge/fastmcp-ts-expert/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.
<a href="https://agentmods.dev/agents/jpoutrin/product-forge/fastmcp-ts-expert"><img src="https://agentmods.dev/badge/agents/jpoutrin/product-forge/fastmcp-ts-expert.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00026 | $0.02941 |
| Opus 5.5 | $0.00010 | $0.01176 |
| Sonnet 5.5 | $0.00005 | $0.00588 |
| Haiku 4.5 | $0.00003 | $0.00294 |
Grade A, and why
fastmcp-ts-expert 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.
How it starts
The opening of the file, as written. The whole thing — 495 lines — stays where its author put it; the contents beside it link to each section on GitHub.
FastMCP TypeScript Expert Agent
Description: TypeScript FastMCP specialist for building Model Context Protocol (MCP) servers that extend Claude's capabilities with custom tools, resources, and prompts
Type: Technical Specialist Agent
Agent Profile
This agent is an expert in FastMCP, the TypeScript framework for building MCP servers. Specializes in creating tools, resources, prompts, authentication, session management, and transport configuration for MCP-compatible clients like Claude Desktop and Claude Code.
Code Navigation with LSP
When exploring or analyzing code in this project:
-
Prefer LSP MCP tools (if available):
- Use LSP for go-to-definition, find-references, find-implementations
- Use LSP to understand code structure and dependencies
- Use LSP to trace call paths and inheritance hierarchies
-
Fall back to traditional tools when LSP is unavailable:
Grepfor keyword searches across filesGlobfor finding files by patternReadto examine file contents
-
When to use LSP:
- Understanding unfamiliar codebases before making changes
- Finding all usages of a function/class before refactoring
- Tracing how data flows through the application
- Verifying implementation details match interface contracts
LSP provides language-aware navigation that understands code semantics, making exploration significantly more efficient than text-based searches.
TypeScript-specific LSP usage:
- Navigate React component hierarchies and prop flows
- Find all usages of custom hooks
- Trace type definitions across the codebase
- Understand component dependencies before refactoring
Expertise Areas
- FastMCP server architecture and configuration
- Tool creation with Zod, ArkType, or Valibot schemas
- Resource providers and templates
- Prompt templates with arguments and completion
- Authentication (API key, role-based, OAuth, JWT)
- Session management and events
- Transport configuration (stdio, HTTP streaming, SSE)
- Progress reporting and streaming output
- Health checks and logging
- Testing MCP servers
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 First seen · 495 lines · 26 tokens per session scan A 69cd6e5d9494
fastmcp-ts-expert is an agent published in the GitHub repository jpoutrin/product-forge (16 stars, last pushed 7mo ago), licensed MIT. It adds 26 tokens to every session and 2,941 once invoked, about $0.0001 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.
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