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.
npx agentmods add instructions/ronnycoding/my_mcp_rss/claude-mdgit clone --depth 1 https://github.com/ronnycoding/my_mcp_rssWrote 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/instructions/ronnycoding/my_mcp_rss/claude-md)<a href="https://agentmods.dev/instructions/ronnycoding/my_mcp_rss/claude-md"><img src="https://agentmods.dev/badge/instructions/ronnycoding/my_mcp_rss/claude-md.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 | $0.01167 | $0.01167 |
| Opus 5 | $0.00583 | $0.00583 |
| Sonnet 5 | $0.00233 | $0.00233 |
| Haiku 4.5 | $0.00117 | $0.00117 |
Grade A, and why
my_mcp_rss CLAUDE.md 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 4d 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 — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project Overview
MCP RSS is a Model Context Protocol (MCP) server that provides RSS feed management capabilities through a standardized API. The server runs as a stdio-based MCP server that can be integrated with Claude Desktop and other MCP-compatible clients.
Development Commands
Build and Development
npm run build # Compile TypeScript to JavaScript (outputs to dist/)
npm run watch # Watch mode for development
npm run prepare # Pre-publish build step (runs automatically)
Testing and Debugging
npx @modelcontextprotocol/inspector node dist/index.js # Debug MCP server with inspector
Database Setup
Using Docker Compose (Recommended):
docker-compose up -d # Start PostgreSQL in background
docker-compose down # Stop PostgreSQL
docker-compose logs -f postgres # View PostgreSQL logs
Using Docker CLI:
docker run -itd --name postgres-test -p 5433:5432 -e POSTGRES_USER=mcp_user -e POSTGRES_PASSWORD=123456 -e POSTGRES_DB=mcp_rss postgres:16-alpine
Configuration:
- Copy
.env.exampleto.envand customize settings - Docker Compose reads environment variables from
.envfile - Default credentials: mcp_user/123456 on port 5433 (change for production)
Architecture
Core Service Layer Pattern
The application follows a three-tier service architecture:
-
OpmlService (
src/services/OpmlService.ts): Handles OPML file parsing and initial feed import- Recursively processes OPML outline elements to handle nested categories
- Creates Feed entities from RSS subscriptions found in OPML
-
RssService (
src/services/RssService.ts): Manages RSS feed fetching and article storage- Uses
rss-parserto fetch and parse RSS feeds - Deduplicates articles by link before saving
- Runs on a cron schedule (configurable via
RSS_UPDATE_INTERVAL)
- Uses
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.
- 4d ago First seen · 127 lines · 1,167 tokens per session scan A cae3adf30b3c
my_mcp_rss CLAUDE.md is an instructions file published in the GitHub repository ronnycoding/my_mcp_rss (5 stars, last pushed 10mo ago), licensed MIT. It adds 1,167 tokens to every session, about $0.0058 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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