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.
git clone --depth 1 https://github.com/SpillwaveSolutions/agent-brainWrote 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/commands/spillwavesolutions/agent-brain/agent-brain-install)<a href="https://agentmods.dev/commands/spillwavesolutions/agent-brain/agent-brain-install"><img src="https://agentmods.dev/badge/commands/spillwavesolutions/agent-brain/agent-brain-install/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/commands/spillwavesolutions/agent-brain/agent-brain-install"><img src="https://agentmods.dev/badge/commands/spillwavesolutions/agent-brain/agent-brain-install.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00020 | $0.01617 |
| Opus 5.5 | $0.00008 | $0.00647 |
| Sonnet 5.5 | $0.00004 | $0.00323 |
| Haiku 4.5 | $0.00002 | $0.00162 |
Grade A, and why
agent-brain-install 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 1mo 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 — 249 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Install Agent Brain Packages
STOP - READ THIS FIRST
DO NOT RUN ANY INSTALLATION COMMANDS YET.
You MUST ask the user which installation method they prefer using the AskUserQuestion tool BEFORE doing anything else.
Step 1: Ask User for Installation Method
THIS IS MANDATORY. DO NOT SKIP THIS STEP.
Use the AskUserQuestion tool with this exact structure:
{
"questions": [{
"question": "Which installation method do you prefer for Agent Brain?",
"header": "Install via",
"options": [
{
"label": "pipx (Recommended)",
"description": "Install globally in an isolated environment. No activation needed."
},
{
"label": "uv",
"description": "Fast, modern Python tool installer. Good for power users."
},
{
"label": "pip (venv)",
"description": "Install into a local virtual environment. Requires activation."
},
{
"label": "conda",
"description": "For conda users. Creates a conda environment with pip inside."
}
],
"multiSelect": false
}]
}
STOP HERE AND WAIT FOR THE USER'S RESPONSE.
Do not proceed until you have called AskUserQuestion and received the user's selection.
Step 1.5: Resolve Version
After receiving the user's installation method choice, resolve the latest version from PyPI:
# Resolve helper script path (installed plugin or local repo)
PYPI_VERSION_SCRIPT=$(find ~/.claude/plugins/agent-brain/scripts ~/.claude/skills/agent-brain/scripts agent-brain-plugin/scripts -name "ab-pypi-version.sh" 2>/dev/null | head -1)
if [ -n "$PYPI_VERSION_SCRIPT" ]; then
VERSION=$("$PYPI_VERSION_SCRIPT")
echo "Latest available: $VERSION"
else
echo "ab-pypi-version.sh not found — falling back to inline version lookup"
VERSION=$(curl -sf https://pypi.org/pypi/agent-brain-rag/json | python3 -c "import sys,json; print(json.load(sys.stdin)['info']['version'])")
echo "Latest available: $VERSION"
fi
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.
- 1mo ago First seen · 249 lines · 20 tokens per session scan E 4929378274e9
agent-brain-install is a command published in the GitHub repository SpillwaveSolutions/agent-brain (119 stars, last pushed 27d ago), licensed MIT. It adds 20 tokens to every session and 1,617 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-30.
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