Instructions

# Tell every agent *once.*

Instructions are the rules you write yourself, in Settings. Every Claude Code and Codex request on every machine carries them.

[Get started free](https://console.context-mode.com/login) [Read the docs](https://contextmode.ai/docs/instructions)

Try it

You write Your message wins vs Memory

```
// Settings → Instructions · 4,096 characters at most
Keep answers short. No wall of text.
Never touch code or technical terms.
```

Saved once. Every request from every agent carries it, read from the cache.

```
Instructions: Explain each change in detail.
Your message: Answer in one line.
The agent:   one line.
```

Instructions are a standing rule. What you ask now comes first.

| Fact | Value | Valid from | Until |
| --- | --- | --- | --- |
| `production deployed_to` | Hetzner Cloud, Falkenstein | 21:14:38 | 21:15:09 |
| `production deployed_to` | Render, Oregon region | 21:15:09 | now |

Memory is learned from your sessions. Instructions change only when you save.

How it works

## You set the rule. *Every agent follows it.*

1. 01 **You write it** “Keep answers short.” At most 4,096 characters, in Settings.
2. 02 **Every request carries it** Claude Code and Codex, on every machine. No file to copy into each repo.
3. 03 **Your message still wins** Ask for detail in one turn, and you get detail.

Instructions or Memory

## You write one. *The other is learned.*

**Instructions**

Written by you. Change only when you save. How the agent should answer you.

**Memory**

Learned from your sessions. Changes as facts change. What is true about you and your projects.

Features

## Costs almost nothing.

**From the cache**

After the first request, it is read at the cache price, not as new input.

**System prompt untouched**

It goes at the start of the conversation. Your client stays as it is.

**One per account**

Both agents, every machine. Clear the box to turn it off.

Use cases: [Agent rules](https://contextmode.ai/use-cases/agent-rules) · [Onboard a new engineer](https://contextmode.ai/use-cases/onboard-new-engineer)

## Write it *once.*

*npx @context-mode/cli* connects your agents. 1,000 requests free, no card.

[Get started free →](https://console.context-mode.com/login) [Read the docs →](https://contextmode.ai/docs/instructions)