mcp-server: Instructions file for Codex

AGENTS.md

mcp-server AGENTS.md is an instructions file for Codex, OpenCode from centia-io/mcp-server. It costs 142 tokens per session, scanned A, original, no licence file.

Repository rules for the Centia MCP server, including core principles, tool priorities, the difference between running the service and changing its setup, and security requirements. An MCP server connects an AI agent to software tools.

In plain words
What is it for?
Use it when working on the Centia MCP server, especially tool selection, runtime behavior, provisioning, authentication, or security.
Why use it?
It tells agents which rules and tools take precedence and helps prevent incorrect or insecure changes.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/centia-io/mcp-server/agents-md"><img src="https://agentmods.dev/badge/instructions/centia-io/mcp-server/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 142 This file is loaded in full into every session.
When invoked 142 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 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 $0.00142 $0.00142
Opus 5.5 $0.00057 $0.00057
Sonnet 5.5 $0.00028 $0.00028
Haiku 4.5 $0.00014 $0.00014

Measured 19d ago against content hash 70a0de16b6b5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-server 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 19d 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 · 8 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. 19d ago Changed · -69 lines · -641 tokens per session 70a0de16b6b5
  2. 1mo ago Changed · +2 lines · +51 tokens per session 5e24998a5158
  3. 1mo ago Changed · +2 lines · +56 tokens per session 9f7835d662a0
  4. 1mo ago First seen · 73 lines · 676 tokens per session scan A c040864a273f

Subscribe to this mod's changes

mcp-server AGENTS.md is an instructions file published in the GitHub repository centia-io/mcp-server (1 stars, last pushed 20d ago), with no licence file. It adds 142 tokens to every session, about $0.0006 per session on Opus 5.5. 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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