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.
npx agentmods add rules/savagelysubtle/big-brain-memory-bank/1001-python-importsgit clone --depth 1 https://github.com/savagelysubtle/BIG-BRAIN-Memory-BankWrote 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/rules/savagelysubtle/big-brain-memory-bank/1001-python-imports)<a href="https://agentmods.dev/rules/savagelysubtle/big-brain-memory-bank/1001-python-imports"><img src="https://agentmods.dev/badge/rules/savagelysubtle/big-brain-memory-bank/1001-python-imports.svg" alt="Measured on agentmods" 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 | $0.00000 | $0.00833 |
| Opus 5 | $0.00000 | $0.00417 |
| Sonnet 5 | $0.00000 | $0.00167 |
| Haiku 4.5 | $0.00000 | $0.00083 |
Grade A, and why
1001-python-imports 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 3d 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.
How it starts
The opening of the file, as written. The whole thing — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.
description: Organize Python imports in the recommended order with proper grouping and formatting globs: src/**/.py
This module provides utilities to extract and analyze metadata from different file types in the Aichemist Codex system. """
from future import annotations
all = ['MetadataExtractor', 'FileTypeDetector'] version = '0.1.0'
Standard library imports
import json import logging from dataclasses import dataclass from datetime import datetime from pathlib import Path from typing import Any, Dict, List, Optional, Protocol, Set, Tuple, Union, TypeVar, cast
Third-party imports
import magic import yaml from pydantic import BaseModel, Field, validator
Application imports (absolute)
from the_aichemist_codex.backend.domain.models.file import File, FileType from the_aichemist_codex.backend.domain.repositories.metadata_repository import MetadataRepository
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.
- 3d ago First seen · 102 lines · 0 tokens per session scan A ddbe0e5f4aeb
1001-python-imports is a cursor rule published in the GitHub repository savagelysubtle/BIG-BRAIN-Memory-Bank (5 stars, last pushed 1y ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 833 tokens. 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.
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