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webweaver-mcp-server: Instructions file for Claude Code

CLAUDE.md

webweaver-mcp-server CLAUDE.md is an instructions file for Claude Code from webweaver-nexus/webweaver-mcp-server. It costs 1,649 tokens per session, scanned A, original, Apache-2.0.

A set of instructions for Claude Code, an AI coding assistant, working on a WebWeaver Nexus Model Context Protocol (MCP) server. MCP is a standard way for AI applications such as Claude Desktop or ChatGPT to use tools provided by another service.

In plain words
What is it for?
Use it when developing or maintaining the server, its three exposed tools, its HTTP or command-line connection modes, or its browser form application.
Why use it?
It gives the coding assistant the project's architecture, editing rules, commands, verification checks, and known limitations in one place. This reduces guesswork when changing a server with both a backend and an embedded browser interface.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is webweaver-nexus/webweaver-mcp-server's own configuration. It tells Claude Code how to work on webweaver-mcp-server itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything webweaver-mcp-server configures →

not rated 0repo 3mo ago A scan 1,649 tokens original Apache-2.0
View source ↗ webweaver-nexus/webweaver-mcp-server webweaver-nexus.vercel.app
Reuse

Borrowing it

Nothing to install: this file belongs to webweaver-nexus/webweaver-mcp-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/webweaver-nexus/webweaver-mcp-server/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/webweaver-nexus/webweaver-mcp-server

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 webweaver-mcp-server CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/webweaver-nexus/webweaver-mcp-server/claude-md.svg)](https://agentmods.dev/instructions/webweaver-nexus/webweaver-mcp-server/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/webweaver-nexus/webweaver-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/webweaver-nexus/webweaver-mcp-server/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,649 This file is loaded in full into every session.
When invoked 1,649 The same file — it is already loaded in full.
Security scan A 1 finding. 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 $0.01649 $0.01649
Opus 5 $0.00825 $0.00825
Sonnet 5 $0.00330 $0.00330
Haiku 4.5 $0.00165 $0.00165

Measured 7d ago against content hash a96291e1ec5d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

webweaver-mcp-server CLAUDE.md scanned grade A 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 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- **No tests.** Verification is via the README's `curl` checks and the basic-host harness from `ext-apps/examples/basic-host`.
CLAUDE.md · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Guidance for Claude Code when working in this repo. For commands, deployment, verification curls, and known limitations, see README.md — this file focuses on the architectural mental model and editing gotchas.

Project Overview

MCP server that exposes WebWeaver Nexus's services to external AI hosts (Claude Desktop, claude.ai custom connectors, ChatGPT, Gemini, etc.) — not consumed by our own landing page or by the Python support agent. Three tools: join_waitlist (MCP App with embedded Tally form UI), get_product_overview, get_contact_info. Production: https://webweaver-nexus-mcp.vercel.app/mcp.

For the WebWeaver Nexus product context (this repo's role within Tier 3), see ../CLAUDE.md and ../README.md at the parent folder.

Architecture

Two-process model, communicating across the MCP wire protocol:

  • Server (Node + Express + MCP SDK) — registers tools and resources, handles JSON-RPC over Streamable HTTP (or stdio).
  • Client App (browser, runs in an iframe inside the MCP host) — src/mcp-app.ts + mcp-app.html + CSS, bundled by Vite + vite-plugin-singlefile into a single self-contained dist/mcp-app.html. Served back to the host as a resource on resources/read.

No shared types between server and client. They communicate over the MCP protocol (JSON-RPC + postMessage via @modelcontextprotocol/ext-apps). Don't try to import across the boundary.

Server: one core, two entry points

  • server.ts — canonical tool/resource registration. Exports createServer(). This is the only place tools are defined.
  • main.ts — local-dev entry. Supports --stdio or HTTP on PORT (default 3001). Imports createServer().
  • api/mcp.ts — Vercel serverless entry. Exports the Express app as default. Imports createServer(). Hardcodes allowedHosts (localhost + production domain) and uses StreamableHTTPServerTransport per-request (no session reuse).

When fixing a tool bug, edit server.ts — the change picks up in both entry points. When fixing a transport/CORS/routing bug, identify which entry point it affects.

Read the full file on GitHub · 75 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. 7d ago First seen · 75 lines · 1,649 tokens per session scan A a96291e1ec5d

Subscribe to this mod's changes

webweaver-mcp-server CLAUDE.md is an instructions file published in the GitHub repository webweaver-nexus/webweaver-mcp-server (0 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 1,649 tokens to every session, about $0.0082 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

ai-toolschatgptclaudemcpmcp-appsmcp-server
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