mixx-dj-mcp: Instructions file for Codex

AGENTS.md

mixx-dj-mcp AGENTS.md is an instructions file for Codex, OpenCode from sandraschi/mixx-dj-mcp. It costs 1,048 tokens per session, scanned A, original, MIT.

A project instruction file for mixx-dj-mcp, a server that lets coding agents control the Mixxx DJ application through OSC, a message protocol for sending control data. It records ports, commands, important files, and development recipes.

In plain words
What is it for?
Use it to start the server and web app, configure Mixxx, run tests and linting, build the native package, or locate deck, library, and effects controls.
Why use it?
It gives agents the connection details and code map needed to run, test, and change the DJ-control system correctly.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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Per session 1,048 This file is loaded in full into every session.
When invoked 1,048 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 $0.01048 $0.01048
Opus 5 $0.00524 $0.00524
Sonnet 5 $0.00210 $0.00210
Haiku 4.5 $0.00105 $0.00105

Measured 9d ago against content hash d4f5c7f1dfca, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

mixx-dj-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 9d 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 · 70 lines

How it starts

The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.

mixx-dj-mcp Agent Context

Fleet MCP server for Mixxx DJ control via OSC. Chat abbreviation: mdm See justfile for available recipes.

Quick Ref

  • Ports: backend 11116, frontend 11117, OSC Mixxx-out 11118, OSC Mixxx-in 11119
  • Dependencies: uv sync, bun install (web_sota/)
  • Serve: uv run uvicorn mixx_dj_mcp.server:app --port 11116 --reload
  • Test: uv run pytest tests/ -q
  • Lint: just lint (ruff check + format)
  • Mixxx OSC config: Preferences -> MIDI/OSC -> Enable OSC, port 11119 (in), 11118 (out), 127.0.0.1
  • Webapp: cd web_sota && bun run dev -> http://127.0.0.1:11117
  • Build NSIS: just build-native
  • CUA smoke: just cua-nsis-test

Key Files

File Purpose
src/mixx_dj_mcp/server.py FastMCP app + tool registration + REST endpoints
src/mixx_dj_mcp/bridge/osc_bridge.py OSC UDP bridge to Mixxx
src/mixx_dj_mcp/bridge/protocol.py OSC address constants and CO mappings
src/mixx_dj_mcp/tools/deck_control.py mixx_deck portmanteau
src/mixx_dj_mcp/tools/library.py mixx_library portmanteau
src/mixx_dj_mcp/tools/effects.py mixx_effects portmanteau
src/mixx_dj_mcp/tools/mixer.py mixx_mixer portmanteau
src/mixx_dj_mcp/tools/controller.py mixx_controller USB auto-detect
src/mixx_dj_mcp/tools/daw.py mixx_daw DAW export
src/mixx_dj_mcp/tools/stems.py mixx_stems stem separation
src/mixx_dj_mcp/tools/transitions.py mixx_transition AI transitions
src/mixx_dj_mcp/tools/vinyl.py mixx_vinyl vinyl control
src/mixx_dj_mcp/tools/skin_manager.py mixx_skin skin management
src/mixx_dj_mcp/skinmaker/ QSS schemes, SVG recolor (see docs/SKINMAKER.md)
src/mixx_dj_mcp/tools/smart_crate.py mixx_crate LLM crate creation
src/mixx_dj_mcp/tools/set_sequencer.py mixx_set AI set sequencing
src/mixx_dj_mcp/tools/prefab_cards.py Prefab UI status cards
src/mixx_dj_mcp/config.py Env-based config
bridge/README.md Mixxx OSC setup guide

Read the full file on GitHub · 70 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. 9d ago First seen · 70 lines · 1,048 tokens per session scan A d4f5c7f1dfca

Subscribe to this mod's changes

mixx-dj-mcp AGENTS.md is an instructions file published in the GitHub repository sandraschi/mixx-dj-mcp (3 stars, last pushed 2d ago), licensed MIT. It adds 1,048 tokens to every session, about $0.0052 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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