StockQuotes.MCP: Instructions file for Codex

AGENTS.md

StockQuotes.MCP AGENTS.md is an instructions file for Codex, OpenCode from lionelschiepers/StockQuotes.MCP. It costs 165 tokens per session, scanned A, original, MIT.

Repository instructions for a TypeScript/Node.js server that fetches stock prices from Yahoo Finance and exposes them through MCP. MCP is a standard for letting AI tools use external services.

In plain words
What is it for?
Use them when changing stock-quote tools, the MCP server, its configuration or its tests.
Why use it?
They explain how to build, test, format and lint the server, and set expectations for keeping documentation lookups and repository changes controlled.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is lionelschiepers/StockQuotes.MCP's own configuration. It tells Codex and OpenCode how to work on StockQuotes.MCP 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 StockQuotes.MCP configures →

Reuse

Borrowing it

Nothing to install: this file belongs to lionelschiepers/StockQuotes.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.

Copy the file
curl -O https://raw.githubusercontent.com/lionelschiepers/StockQuotes.MCP/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/lionelschiepers/StockQuotes.MCP

Made for: Codex, OpenCode.

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 StockQuotes.MCP AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/lionelschiepers/stockquotes.mcp/agents-md.svg)](https://agentmods.dev/instructions/lionelschiepers/stockquotes.mcp/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/lionelschiepers/stockquotes.mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/lionelschiepers/stockquotes.mcp/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 165 This file is loaded in full into every session.
When invoked 165 The same file — it is already loaded in full.
Security scan A 0 findings. 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 $0.00165 $0.00165
Opus 5 $0.00082 $0.00082
Sonnet 5 $0.00033 $0.00033
Haiku 4.5 $0.00016 $0.00016

Measured 8d ago against content hash 4f6efad45274, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

StockQuotes.MCP AGENTS.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 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.

AGENTS.md · 18 lines

What it actually says

StockQuotes.MCP

Project Overview

This is a TypeScript/Node.js project for creating a server to fetch stock quotes. The project implements a Model Context Protocol (MCP) server that provides tools for fetching stock quotes from Yahoo Finance.

Building and Running

  • 'npm run build' for building
  • 'npm test' for testing
  • 'npm run format' for formatting the code
  • 'npm run lint' for linting the code

Development Conventions

  • Always use context7 when I need code generation, setup or configuration steps, or library/API documentation. This means you should automatically use the Context7 MCP tools to resolve library id and get library docs without me having to explicitly ask.
  • Don't update git.
  • Lint and Format the project for each code modification.
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. 8d ago First seen · 18 lines · 165 tokens per session scan A 4f6efad45274

Subscribe to this mod's changes

StockQuotes.MCP AGENTS.md is an instructions file published in the GitHub repository lionelschiepers/StockQuotes.MCP (19 stars, last pushed 4mo ago), licensed MIT. It adds 165 tokens to every session, about $0.0008 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.

Related

Other instructions, from other repositories

vibetags com-example-service-EvidenceBasedShowcase.instructions.md

Instructions for PIsberg/vibetags, covering copilot instructions for evidencebasedshowcase, generated — edit the source, rules for field settledorderids, rules for method totalwithtax and rules for method refreshcartbadge.

PIsberg/vibetags · 443 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,182 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,296 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,469 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).

microsoft/vscode · 5,001 tokens