What is magnitude AGENTS.md?

An instruction file for working on Magnitude, an AI coding-agent platform. It explains the project’s package structure, how its parts communicate, and rules for keeping those boundaries intact.

Use it when changing Magnitude’s clients, shared client code, software development kit, daemon, agent runtime, or related packages.

It gives the coding agent the project context needed to place changes in the right package and avoid using internal components incorrectly. It also points the agent toward session inspection, testing, and type checking.

How magnitudedev/magnitude configures Codex and OpenCode

About the project

Magnitude is an open-source inference server, meaning software that runs language models and answers requests on a user's own computer. It profiles available hardware, recommends suitable local models, and connects them to coding agents for private and offline use on macOS, Linux, or Windows through WSL. Its catalogue entries help agents set up and use Magnitude.

magnitudedev/magnitude · 4,150 stars · on GitHub · magnitude.dev

Reuse

Borrowing it

Nothing to install: this file belongs to magnitudedev/magnitude. 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/magnitudedev/magnitude/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/magnitudedev/magnitude

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/magnitudedev/magnitude/agents-md.svg)](https://agentmods.dev/instructions/magnitudedev/magnitude/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/magnitudedev/magnitude/agents-md"><img src="https://agentmods.dev/badge/instructions/magnitudedev/magnitude/agents-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 1,903 This file is loaded in full into every session.

When invoked 1,903 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	$0.01903	$0.01903
Opus 5	$0.00951	$0.00951
Sonnet 5	$0.00381	$0.00381
Haiku 4.5	$0.00190	$0.00190

Measured 2d ago against content hash e37380deb17c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

magnitude 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 2d 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.

Motel is a local OpenTelemetry collector with an HTTP API at `http://127.0.0.1:27686`. Query it with `curl` to inspect traces, spans, and logs from the application.

AGENTS.md · 155 lines

How it starts

The opening of the file, as written. The whole thing — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.

TRESTING

Magnitude Project Context

You are working on Magnitude, an AI coding agent platform.

Package Layering

clients (cli/web) → client-common → sdk → acn (daemon)

Clients import only from @magnitudedev/client-common and @magnitudedev/sdk. Never from acn, agent, acn-protocol, ai, or providers directly.
client-common — shared state, hooks, display sync. Uses one connection-scoped Effect Query AgentClient over the shared SDK instance.
sdk — private, portable Effect RPC client, fixed-endpoint admission/recovery, and optional service-starter capability. Re-exports pure protocol contracts; no SQLite, process supervision, or query cache.
daemon-management — private owner-store, process supervision, binary acquisition, and OS-service implementation. Only privileged host composition roots (CLI bootstrap, desktop main, development server) import it.
client-common owns first-party Query/Mutation/Subscription definitions over SDK operations; providers owns provider-client construction.
acn — server daemon hosting agent runtime, sessions, file ops, display streams. Implements ACN protocol RPCs.
acn-protocol — wire contract (RPCs, schemas) shared by SDK and ACN. Not imported by clients.
ai — provider-agnostic contract (Provider, ModelCatalog, BoundModel, BaseCallOptions).
providers — concrete provider implementations + registry. See packages/providers/AGENTS.md.
agent — agent runtime, projections, workers, tools, display materialization.
event-core — event sourcing, projections, addressed state.
roles — role/slot definitions for worker specialization.
storage — persistent session/config/auth storage.

For a new backend operation, declare its Rpc.make once in the appropriate packages/acn-protocol/src/boundary/ domain, implement its handler in ACN, and consume the derived SDK method. Add first-party caching/synchronization policy in packages/client-common/src/operations/ as needed. Effect Query does not generate RPCs. The SDK may ask an injected starter to ensure availability; only daemon-management interprets SQLite/process coordination. Plugin packages bundle the private SDK and inherit its exact RPC-version check.

Read the full file on GitHub · 155 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.

2d ago Changed · +6 lines · +148 tokens per session e37380deb17c
8d ago First seen · 149 lines · 1,755 tokens per session scan A 15c2894e8e85

Subscribe to this mod's changes

magnitude AGENTS.md is an instructions file published in the GitHub repository magnitudedev/magnitude (4,150 stars, last pushed today), licensed Apache-2.0. It adds 1,903 tokens to every session, about $0.0095 per session on Opus 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.

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.

vercel/next.js · 7,296 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,153 tokens

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 · 6,785 tokens

magnitude: Instructions file for Codex