mediagraph-mcp: Instructions file for Codex

AGENTS.md

mediagraph-mcp AGENTS.md is an instructions file for Codex, OpenCode from mediagraph-io/mediagraph-mcp. It costs 1,455 tokens per session, scanned A, original, MIT.

Instructions for a Mediagraph MCP server, which connects AI assistants to a digital asset management service for storing, searching, and organising media files. The project uses TypeScript, Node.js, and OAuth sign-in.

In plain words
What is it for?
Setting up the project, building it, running tests and type checks, starting development mode, and working with its Mediagraph asset API connection.
Why use it?
It gives developers a shared reference for installing, building, testing, checking, and running the server without guessing the project’s setup.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md; mentions Codex.

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

Reuse

Borrowing it

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

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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Per session 1,455 This file is loaded in full into every session.
When invoked 1,455 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 $0.01455 $0.01455
Opus 5.5 $0.00582 $0.00582
Sonnet 5.5 $0.00291 $0.00291
Haiku 4.5 $0.00145 $0.00145

Measured 2mo ago against content hash 92c7d40b28a0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mediagraph-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 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.

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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 187 lines

How it starts

The opening of the file, as written. The whole thing — 187 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

This file provides guidance to Codex when working with this repository.

Project Overview

Mediagraph MCP is a Model Context Protocol (MCP) server that provides AI assistants with access to the Mediagraph digital asset management API. It enables Codex and other MCP-compatible AI assistants to search, manage, and organize media assets.

Tech Stack:

  • TypeScript with ESM modules
  • Node.js 20+
  • MCP SDK (@modelcontextprotocol/sdk)
  • OAuth 2.0 with PKCE for authentication
  • Vitest for testing
  • tsup for bundling

Common Commands

# Install dependencies
npm install

# Build the project
npm run build

# Run in development mode (watch)
npm run dev

# Run tests
npm test

# Run tests in watch mode
npm run test:watch

# Type check without emitting
npm run typecheck

# Start the MCP server
npm start

Project Structure

src/
├── index.ts              # MCP server entry point, CLI handling
├── api/
│   ├── client.ts         # Mediagraph API client (all HTTP methods)
│   ├── types.ts          # Re-exports from types/
│   └── types/            # Split type definitions by domain
│       ├── index.ts      # Re-exports all types
│       ├── assets.ts     # Asset, SearchParams, etc.
│       ├── groups.ts     # Collection, Lightbox, StorageFolder
│       ├── tags.ts       # Tag, Taxonomy, etc.
│       ├── users.ts      # User, Organization, Membership
│       └── ...           # Other domain types
├── auth/
│   ├── oauth.ts          # OAuth flow with PKCE support
│   └── token-store.ts    # Encrypted token storage
├── tools/                # MCP tool definitions and handlers
│   ├── index.ts          # Combines all tool modules
│   ├── shared.ts         # Common types and helpers
│   ├── assets.ts         # Asset tools (search, get, update, etc.)
│   ├── groups.ts         # Collection, Lightbox, StorageFolder tools
│   ├── tags.ts           # Tag, Taxonomy tools
│   ├── admin.ts          # User groups, invites, uploads, etc.
│   └── ...               # Other tool modules
├── resources/            # MCP resource providers
│   └── index.ts          # mediagraph:// URI handlers
└── __tests__/            # Test files
    ├── tools.test.ts
    ├── types.test.ts
    └── client.test.ts

Read the full file on GitHub · 187 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. 2mo ago First seen · 187 lines · 1,455 tokens per session scan A 92c7d40b28a0

Subscribe to this mod's changes

mediagraph-mcp AGENTS.md is an instructions file published in the GitHub repository mediagraph-io/mediagraph-mcp (1 stars, last pushed 4d ago), licensed MIT. It adds 1,455 tokens to every session, about $0.0058 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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