What is lfx-mcp AGENTS.md?

Repository instructions for LFX MCP, a Go implementation that lets AI agents interact with the Linux Foundation’s LFX platform through MCP, a standard interface for AI tools.

Use it when navigating or modifying the Go server, authentication, MCP tools and resources, JSON-RPC communication, or standard input and HTTP transports.

It provides the project’s architecture, technologies, and data flow so an agent can understand where changes belong.

How linuxfoundation/lfx-mcp configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to linuxfoundation/lfx-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/linuxfoundation/lfx-mcp/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/linuxfoundation/lfx-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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/linuxfoundation/lfx-mcp/agents-md/github.svg)](https://agentmods.dev/instructions/linuxfoundation/lfx-mcp/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/linuxfoundation/lfx-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/linuxfoundation/lfx-mcp/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/linuxfoundation/lfx-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/linuxfoundation/lfx-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 10,936 This file is loaded in full into every session.

When invoked 10,936 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 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.

Model	Per session	Once invoked
Fable 5.1	$0.10936	$0.10936
Opus 5.5	$0.04374	$0.04374
Sonnet 5.5	$0.02187	$0.02187
Haiku 4.5	$0.01094	$0.01094

Measured 6d ago against content hash 6030b1993c96, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

lfx-mcp 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 6d 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://localhost:8080/mcp \

AGENTS.md · 822 lines

How it starts

The opening of the file, as written. The whole thing — 822 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Note: CLAUDE.md is a symlink to this file. Only AGENTS.md needs to be edited; changes are automatically reflected in CLAUDE.md.

This file provides essential information for AI agents working on the LFX MCP Server codebase. It focuses on development workflows, architecture understanding, and build processes needed for making code changes.

Repository Overview

The LFX MCP Server is a Model Context Protocol (MCP) implementation that provides tools and resources for interacting with the Linux Foundation's LFX platform. It's built using the official Go SDK for MCP and follows a clean, extensible architecture.

Key Technologies

Language: Go (see go.mod for the minimum required version)
Protocol: Model Context Protocol (MCP) 2024-11-05
SDK: Official MCP Go SDK (see go.mod for version)
Transport: JSON-RPC 2.0 over stdio and Streamable HTTP
Schema: Automatic JSON schema generation via struct tags

Architecture Overview

The service follows a simple, clean architecture pattern optimized for MCP tool development:

lfx-mcp/
├── cmd/
│   └── lfx-mcp-server/     # Main application entry point
├── internal/
│   ├── auth/               # JWT and API-key verification
│   ├── lfxv2/              # LFX V2 API client
│   ├── otel/               # OpenTelemetry instrumentation
│   ├── serviceapi/         # Shared service API helpers
│   └── tools/              # MCP tool implementations
├── charts/                 # Helm chart for Kubernetes deployment
├── scripts/                # Test and utility scripts
├── bin/                    # Built binaries (gitignored)
├── go.mod                  # Go module definition
├── Makefile                # Build automation
├── README.md               # User documentation
└── AGENTS.md               # This file (AI agent guidelines)

Data Flow

Client (Claude, etc.) → JSON-RPC 2.0 → stdio transport → MCP Server → Tool Handler → Response

Key Design Principles

Read the full file on GitHub · 822 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.

6d ago Changed · +6 lines · +109 tokens per session 6030b1993c96
24d ago Changed · +37 lines · +618 tokens per session f1225db34258
25d ago Changed · +101 lines · +1,640 tokens per session 611d75738ec3
1mo ago Changed · +31 lines · +1,101 tokens per session 4291db75becb
1mo ago Changed · +65 lines · +1,275 tokens per session 821ab533dbb0
1mo ago Changed · +9 lines · +371 tokens per session fccec69a2c6b
1mo ago First seen · 573 lines · 5,822 tokens per session scan A cfbafa6787b8

Subscribe to this mod's changes

lfx-mcp AGENTS.md is an instructions file published in the GitHub repository linuxfoundation/lfx-mcp (21 stars, last pushed 6d ago), licensed MIT. It adds 10,936 tokens to every session, about $0.0437 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 2026-08-30.

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 · 9,715 tokens

lfx-mcp: Instructions file for Codex