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MCPbundler: Instructions file for Codex

AGENTS.md

MCPbundler AGENTS.md is an instructions file for Codex, OpenCode from eugenepyvovarov/MCPbundler. It costs 1,524 tokens per session, scanned A, original, Apache-2.0.

Repository instructions for MCPBundler, a macOS SwiftUI app that bundles MCP servers, which are tools that follow the Model Context Protocol.

In plain words
What is it for?
Use them when changing MCPBundler services, views, models, tests, documentation, or project records.
Why use it?
They give contributors consistent locations for code, tests, documentation, builds, and Obsidian mirrors.

Instructions file for CodexOpenCode

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

This is eugenepyvovarov/MCPbundler's own configuration. It tells Codex and OpenCode how to work on MCPbundler 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 MCPbundler configures →

not rated 48repo 8mo ago A scan 1,524 tokens original Apache-2.0
View source ↗ eugenepyvovarov/MCPbundler mcp-bundler.com
Reuse

Borrowing it

Nothing to install: this file belongs to eugenepyvovarov/MCPbundler. 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/eugenepyvovarov/MCPbundler/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/eugenepyvovarov/MCPbundler

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.

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README.md
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Your own site
<a href="https://agentmods.dev/instructions/eugenepyvovarov/mcpbundler/agents-md"><img src="https://agentmods.dev/badge/instructions/eugenepyvovarov/mcpbundler/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 MCPbundler AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/eugenepyvovarov/mcpbundler/agents-md"><img src="https://agentmods.dev/badge/instructions/eugenepyvovarov/mcpbundler/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,524 This file is loaded in full into every session.
When invoked 1,524 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 $0.01524 $0.01524
Opus 5.5 $0.00610 $0.00610
Sonnet 5.5 $0.00305 $0.00305
Haiku 4.5 $0.00152 $0.00152

Measured 2mo ago against content hash 10de4347db92, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

MCPbundler 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.

AGENTS.md · 89 lines

How it starts

The opening of the file, as written. The whole thing — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Guidelines

Spec Baseline: All MCP lifecycle references should align with the 2025-06-18 MCP specification revision.

Project Structure & Module Organization

  • MCPBundler/ holds the macOS SwiftUI app. Services live in MCPBundler/Services/, UI views under MCPBundler/Views/, and data models in MCPBundler/Models/.
  • MCPBundlerTests/ provides unit tests; each suite mirrors the production module (e.g., BundledServerManagerTests.swift exercises Services/ logic).
  • MCPBundlerUITests/ stores the UI automation harness for future scenarios.
  • docs/ contains end-user documentation; docs/specs/ only tracks OSS prep (spec_open_source.md).

Documentation (Obsidian)

  • Store project documents/specs/changelogs in the Obsidian vault Thoughts, under Y26/P/MCPbundler/.
    • Vault path (macOS/iCloud): ~/Library/Mobile Documents/iCloud~md~obsidian/Documents/Thoughts
    • Project folder: Y26/P/MCPbundler/
    • Docs folder: Y26/P/MCPbundler/Docs/
  • Mirror docs/ into Y26/P/MCPbundler/Docs/.
  • Mirror docs/specs/spec_open_source.md into Y26/P/MCPbundler/spec_open_source.md.
  • Mirror CHANGELOG.md into Y26/P/MCPbundler/Changelog.md.

Build, Test, and Development Commands

  • xcodebuild build -project MCPBundler.xcodeproj -scheme MCPBundler -destination 'platform=macOS': builds the debug app locally.
  • xcodebuild build-for-testing ... CODE_SIGNING_ALLOWED=NO CODE_SIGNING_REQUIRED=NO: prepares test bundles quickly without signing.
  • xcodebuild test-without-building -only-testing:<Target/TestSuite>: executes a specific suite using the cached build, ideal for fast verification.

Headless STDIO Environment Flags

  • MCP_BUNDLER_STORE_URL=/tmp/.../mcp-bundler.sqlite: override the default Application Support store, useful for tests or scratch sessions.
  • MCP_BUNDLER_PERSIST_STDIO=0|1: default 1; when set to 0 the headless runner tears down provider caches after stdin closes.
  • MCP_BUNDLER_STDIO_VERBOSE=1: enables detailed stderr tracing for stdio startup/teardown and transport events.
  • MCP_BUNDLER_SMOKE_TEST=1: opt-in gate for HeadlessStdIOSmokeTests; without it the suite skips by design.

Read the full file on GitHub · 89 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 · 89 lines · 1,524 tokens per session scan A 10de4347db92

Subscribe to this mod's changes

MCPbundler AGENTS.md is an instructions file published in the GitHub repository eugenepyvovarov/MCPbundler (48 stars, last pushed 8mo ago), licensed Apache-2.0. It adds 1,524 tokens to every session, about $0.0061 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 2026-08-30.

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