new-brain

A command for creating a new, empty named CaBrain brain, which is a separate store of memories for an AI agent. It can optionally create access limited to that brain.

In plain words
What is it for?
Use it to start a new memory collection and configure another session or teammate to connect to it.
Why use it?
It provides a separate memory space for a project, team, or other defined area of knowledge.

Command

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/togo-framework/cabrain-cli/new-brain
Clone the repo
git clone --depth 1 https://github.com/togo-framework/cabrain-cli
Per session 16 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 204 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00016 $0.00204
Opus 5 $0.00008 $0.00102
Sonnet 5 $0.00003 $0.00041
Haiku 4.5 $0.00002 $0.00020

Measured yesterday against content hash cc4f32438df6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

new-brain 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 yesterday.

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.

commands/new-brain.md · 13 lines

What it actually says

Create a new brain using the CaBrain brain_create MCP tool.

  • Take the brain name from the first token of $ARGUMENTS; use the rest as its description.
  • Call brain_create with { name, description }. It seeds a genesis marker so the namespace exists and is immediately connectable.
  • Report the new brain and how to connect it: another session pastes an MCP config with CABRAIN_DEFAULT_NAMESPACE=<name>, or runs cabrain mcp:install <client> --brain <name>.

If the user wants a teammate to have access to only this brain, tell them to mint a scoped token from the shell: cabrain brain create <name> --token (mints a non-admin token granted read+write on just that brain and prints a paste-ready snippet).

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. yesterday First seen · 13 lines · 16 tokens per session scan A cc4f32438df6

Subscribe to this mod's changes

new-brain is a command published in the GitHub repository togo-framework/cabrain-cli (0 stars, last pushed 1mo ago), licensed MIT. It adds 16 tokens to every session and 204 once invoked, about $0.0001 per session on Opus 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 2026-08-31.