brain-init-run

brain-init-run is a command for Claude Code from nutdnuy/brain-paper-to-alpha-plugin. It costs 11 tokens per session (155 once invoked), scanned A, original, MIT.

A command that creates a local folder for researching a paper, report, trading idea, or unsuccessful BRAIN result. BRAIN is a platform for testing quantitative investment ideas, and an alpha is a proposed trading signal.

In plain words
What is it for?
Use it to start a research run and prepare space for a research card, candidate data file, simulation queue, evaluation record, and memory update.
Why use it?
It gives each research effort a consistent place for its notes, data, simulations, evaluations, and follow-up memory. This reduces the chance of losing work or mixing artifacts from different ideas.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the brain-paper-to-alpha-plugin plugin — 1 skill, 6 commands shipped together

Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add nutdnuy/brain-paper-to-alpha-plugin
Claude Code
/plugin install brain-paper-to-alpha-plugin

Made for: Claude Code.

Or install brain-paper-to-alpha-plugin, the plugin that ships this one along with the rest of its 1 skill, 6 commands.

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.

agentmods badge for brain-init-run

README.md
[![agentmods](https://agentmods.dev/badge/commands/nutdnuy/brain-paper-to-alpha-plugin/brain-init-run.svg)](https://agentmods.dev/commands/nutdnuy/brain-paper-to-alpha-plugin/brain-init-run)
Your own site
<a href="https://agentmods.dev/commands/nutdnuy/brain-paper-to-alpha-plugin/brain-init-run"><img src="https://agentmods.dev/badge/commands/nutdnuy/brain-paper-to-alpha-plugin/brain-init-run.svg" alt="Measured on agentmods" height="20"></a>
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 155 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 5.1 $0.00011 $0.00155
Opus 5 $0.00005 $0.00077
Sonnet 5 $0.00002 $0.00031
Haiku 4.5 $0.00001 $0.00015

Measured 6d ago against content hash 503537544249, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

brain-init-run 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 6d 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.

commands/brain-init-run.md · 18 lines

What it actually says

Create a local research run folder for a paper, report, alpha idea, or failed BRAIN result.

Use $ARGUMENTS as options for:

cd "${CLAUDE_PLUGIN_ROOT:-$PWD}" && python3 scripts/wq_brain_alpha.py init $ARGUMENTS

After creation, summarize the run path and expected next artifacts: research card, candidate CSV, simulation queue, evaluation record, and memory update.

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. 6d ago First seen · 18 lines · 11 tokens per session scan A 503537544249

Subscribe to this mod's changes

brain-init-run is a command published in the GitHub repository nutdnuy/brain-paper-to-alpha-plugin (2 stars, last pushed 2mo ago), licensed MIT. It adds 11 tokens to every session and 155 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.