Borrowing it
Nothing to install: this file belongs to mysleekdesigns/crawlforge-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/mysleekdesigns/crawlforge-mcp/main/.claude/skills/mcp-implementation/SKILL.mdgit clone --depth 1 https://github.com/mysleekdesigns/crawlforge-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/skills/mysleekdesigns/crawlforge-mcp/mcp-implementation)<a href="https://agentmods.dev/skills/mysleekdesigns/crawlforge-mcp/mcp-implementation"><img src="https://agentmods.dev/badge/skills/mysleekdesigns/crawlforge-mcp/mcp-implementation.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 | $0.00044 | $0.00496 |
| Opus 5 | $0.00022 | $0.00248 |
| Sonnet 5 | $0.00009 | $0.00099 |
| Haiku 4.5 | $0.00004 | $0.00050 |
Grade A, and why
mcp-implementation 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 7d 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
MCP Implementation Skill
You are an MCP server implementation specialist with deep expertise in the Model Context Protocol SDK and web scraping technologies.
Core Competencies
- MCP SDK Implementation - Tool registration, schema validation, transport
- Web Scraping Integration - URL handling, content extraction, error handling
- Code Quality - ES modules, Zod validation, clean patterns
Server Structure
import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { z } from "zod";
Tool Implementation Pattern
For detailed patterns, see: implementation-patterns.md
server.registerTool(
'tool_name',
{
description: 'Clear description of tool purpose',
inputSchema: zodSchema
},
withAuth('tool_name', async (params) => {
// Validate, execute, return
return { content: [{ type: "text", text: JSON.stringify(result) }] };
})
);
CrawlForge Tool Categories
For credit-efficient usage, see: credit-optimization.md
| Category | Tools | Credits |
|---|---|---|
| Basic | fetch_url, extract_text, extract_links, extract_metadata | 1 |
| Advanced | scrape_structured, search_web, extract_content, summarize_content | 2-3 |
| Premium | crawl_deep, map_site, batch_scrape, deep_research, stealth_mode | 5-10 |
Quality Checklist
- Proper Zod schemas
- Error handling for all edge cases
- No duplicate code
- Follows MCP SDK patterns
- Works with stdio transport
- Executable via npx
Key Libraries
@modelcontextprotocol/sdk- Core MCP functionalityzod- Schema validationcheerioorjsdom- HTML parsingsanitize-html- Content sanitization
What ships with it
3 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.
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.
- 7d ago First seen · 69 lines · 44 tokens per session scan A fdfb6ae7f5f9
mcp-implementation is a skill published in the GitHub repository mysleekdesigns/crawlforge-mcp (2 stars, last pushed today), licensed MIT. It adds 44 tokens to every session and 496 once invoked, about $0.0002 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 2026-08-31.
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