mcp-hello-server: Instructions file for Codex

AGENTS.md

mcp-hello-server AGENTS.md is an instructions file for Codex, OpenCode from Phionx/mcp-hello-server. It costs 4,099 tokens per session, scanned A, original, no licence file.

An AGENTS.md instruction file for the mcp-hello-server project. It documents what the project includes and how to run its development and production servers.

In plain words
What is it for?
Guiding work on the project, starting its development server, and starting its optimized production server.
Why use it?
It gives a coding agent the project-specific instructions needed to work with the repository. It also records the development server’s streamable HTTP setup on port 8081.

Instructions file for CodexOpenCode

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

This is Phionx/mcp-hello-server's own configuration. It tells Codex and OpenCode how to work on mcp-hello-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 mcp-hello-server configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Phionx/mcp-hello-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/Phionx/mcp-hello-server/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/Phionx/mcp-hello-server

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 mcp-hello-server AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/phionx/mcp-hello-server/agents-md/github.svg)](https://agentmods.dev/instructions/phionx/mcp-hello-server/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/phionx/mcp-hello-server/agents-md"><img src="https://agentmods.dev/badge/instructions/phionx/mcp-hello-server/agents-md/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.

agentmods 80×15 button for mcp-hello-server AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/phionx/mcp-hello-server/agents-md"><img src="https://agentmods.dev/badge/instructions/phionx/mcp-hello-server/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 4,099 This file is loaded in full into every session.
When invoked 4,099 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 unknown 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 $0.04099 $0.04099
Opus 5.5 $0.01640 $0.01640
Sonnet 5.5 $0.00820 $0.00820
Haiku 4.5 $0.00410 $0.00410

Measured 2mo ago against content hash 80e668d2faab, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-hello-server AGENTS.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 2mo 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.

curl -X POST "http://127.0.0.1:8081/mcp?pirate_mode=true" \
AGENTS.md · 464 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2mo ago First seen · 464 lines · 4,099 tokens per session scan A 80e668d2faab

Subscribe to this mod's changes

mcp-hello-server AGENTS.md is an instructions file published in the GitHub repository Phionx/mcp-hello-server (0 stars, last pushed 1y ago), with no licence file. It adds 4,099 tokens to every session, about $0.0164 per session on Opus 5.5. 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.

Related

mcp-hello-server AGENTS.md compared with instructions from other repositories

mcp-hello-server AGENTS.md next to 6 instructions from other repositories
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mcp-hello-server AGENTS.mdPhionx/mcp-hello-serverInstructions file01y agononeA4,099Codex, OpenCode
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next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, OpenCode
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vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode