Borrowing it
Nothing to install: this file belongs to cyberpapiii/imessage-max. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/cyberpapiii/imessage-max/main/AGENTS.mdgit clone --depth 1 https://github.com/cyberpapiii/imessage-maxWrote 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.
[](https://agentmods.dev/instructions/cyberpapiii/imessage-max/agents-md)<a href="https://agentmods.dev/instructions/cyberpapiii/imessage-max/agents-md"><img src="https://agentmods.dev/badge/instructions/cyberpapiii/imessage-max/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.
<a href="https://agentmods.dev/instructions/cyberpapiii/imessage-max/agents-md"><img src="https://agentmods.dev/badge/instructions/cyberpapiii/imessage-max/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.04003 | $0.04003 |
| Opus 5.5 | $0.01601 | $0.01601 |
| Sonnet 5.5 | $0.00801 | $0.00801 |
| Haiku 4.5 | $0.00400 | $0.00400 |
Grade A, and why
imessage-max 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 20d 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 \ How it starts
The opening of the file, as written. The whole thing — 347 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
This file provides guidance to coding agents (Claude Code, Codex) and contributors.
Project overview
iMessage Max is an MCP (Model Context Protocol) server for iMessage, built for AI assistants to call.
The goal is to cut tool calls per user intent from 3-5 down to 1-2. Tools are shaped around what someone wants to know, not around the database tables.
Current implementation
The project is written in Swift and lives in /swift/. The old Python implementation is gone.
Build, install, run
After making code changes, build and deploy with:
cd swift
make install # builds, signs, restarts launchd service, verifies health
Always run make install after code changes. It signs the binary, which is what keeps Full Disk Access from being revoked on every rebuild.
Other Makefile targets:
make testruns the full test suite (FILTER=ClassOrMethodfor a subset)make statuschecks process, version, signature, healthmake logstails the stderr logmake cleanremoves debug artifacts and clears logsmake setup-signingis one-time setup for a persistent code signing identitymake versionchecks the five version sites agree;make release-checkruns everything that must pass before tagging (seedocs/RELEASING.md)make install-agentcopiesswift/launchd/local.imessage-max.plistinto~/Library/LaunchAgents/(do not hand-write the plist)
The server runs as a launchd service (local.imessage-max) on port 8080, configured at ~/Library/LaunchAgents/local.imessage-max.plist. Install that agent with make install-agent. It auto-starts on login and auto-restarts on crash.
Clients reach it through plug (HTTP, protocol = "legacy") at http://127.0.0.1:8080. After restarting the service, clients may need to reconnect (e.g. /mcp in Codex).
make build passes --build-system native so the binary stays at .build/arm64-apple-macosx/release/imessage-max, the path the Full Disk Access grant names. Swift 6.4's default build system writes elsewhere; a bare swift build -c release binary is not the one launchd runs.
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.
- 20d ago Changed · +7 lines · +198 tokens per session ac3c76e2cd80
- 1mo ago Changed · +5 lines · +107 tokens per session f20d118edd2f
- 1mo ago Changed · +13 lines · +359 tokens per session 24a325efd2ad
- 2mo ago First seen · 322 lines · 3,339 tokens per session scan A 44e05e1be4b6
imessage-max AGENTS.md is an instructions file published in the GitHub repository cyberpapiii/imessage-max (6 stars, last pushed yesterday), licensed MIT. It adds 4,003 tokens to every session, about $0.0160 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 2026-08-31.
Other instructions, from other repositories
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).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.