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 commands/spillwavesolutions/agent-brain/agent-brain-indexgit 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-index)<a href="https://agentmods.dev/commands/spillwavesolutions/agent-brain/agent-brain-index"><img src="https://agentmods.dev/badge/commands/spillwavesolutions/agent-brain/agent-brain-index.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 | $0.00010 | $0.01723 |
| Opus 5 | $0.00005 | $0.00861 |
| Sonnet 5 | $0.00002 | $0.00345 |
| Haiku 4.5 | $0.00001 | $0.00172 |
Grade A, and why
agent-brain-index 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 4d 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 — 212 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Index Documents
Purpose
Indexes documents at the specified path for semantic search. Processes markdown, PDF, text, and optionally code files. Creates vector embeddings for semantic search and builds the BM25 index for keyword search. Supports incremental indexing — only changed files are re-processed on subsequent runs.
Usage
/agent-brain:agent-brain-index <path> [options]
Parameters
| Parameter | Required | Default | Description |
|---|---|---|---|
| path | Yes | - | Path to documents (file or directory) |
| --include-code | No | false | Include code files (.py, .ts, .js, .java, etc.) |
| --include-type | No | - | File type presets (e.g., python,docs,typescript). Use agent-brain types list to see all. |
| --chunk-size | No | 512 | Target chunk size in tokens |
| --chunk-overlap | No | 50 | Overlap between chunks in tokens |
| --no-recursive | No | false | Don't scan subdirectories |
| --languages | No | - | Comma-separated language list for code files |
| --code-strategy | No | ast_aware | Code splitting strategy: ast_aware or text_based |
| --include-patterns | No | - | Additional glob include patterns |
| --exclude-patterns | No | - | Additional glob exclude patterns |
| --generate-summaries | No | false | Generate LLM summaries for better search quality |
| --force | No | false | Force re-indexing (bypass manifest, evict all prior chunks) |
| --allow-external | No | false | Allow indexing paths outside the project directory |
| --json | No | false | Output results as JSON |
Examples
/agent-brain:agent-brain-index docs/
/agent-brain:agent-brain-index ./src --include-code
/agent-brain:agent-brain-index ./project --include-type python,docs
/agent-brain:agent-brain-index ./src --include-type typescript --include-patterns "*.json"
/agent-brain:agent-brain-index ./docs --force
/agent-brain:agent-brain-index ./src --include-code --chunk-size 1024 --generate-summaries
/agent-brain:agent-brain-index ./src --allow-external
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.
- 4d ago First seen · 212 lines · 10 tokens per session scan A 4d180d9e686f
agent-brain-index is a command published in the GitHub repository SpillwaveSolutions/agent-brain (117 stars, last pushed 4d ago), licensed MIT. It adds 10 tokens to every session and 1,723 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 2026-08-30.
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