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/xbluesky/cortexes/genesisgit clone --depth 1 https://github.com/XBlueSky/cortexesWhat 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 | $0.00017 | $0.01016 |
| Opus 5 | $0.00009 | $0.00508 |
| Sonnet 5 | $0.00003 | $0.00203 |
| Haiku 4.5 | $0.00002 | $0.00102 |
Grade A, and why
genesis 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 2d 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 — 161 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Initialize or reconfigure the cortex memory vault. Run once per machine, or again after switching machines to rebuild local state.
Steps
1. Check the cortex-vec CLI
Run command -v cortex-vec. If it is not on PATH, tell the user the vault's
indexing and search need the CLI, and offer to install it now:
# Recommended: isolated tool install via uv
uv tool install cortex-vec
# Or with pip
pip install cortex-vec
If they decline, continue anyway — recording and the skills degrade
gracefully — but note that semantic indexing and cortex-vec search stay
unavailable until it is installed.
2. Check for existing config
Read ~/.cortex/config.json. If it exists, show current config and ask if the
user wants to reconfigure or abort.
3. Ask for vault path
If the user provided an argument, use that as the vault path. Otherwise, ask: "Where is the cortex vault? (e.g. /srv/cortex, ~/cortex)"
If the path exists and contains Notes/ or Weekly/ or Raw/, recognize it as an existing vault. If the path doesn't exist, ask if they want to create it.
4. Ask for author info
Ask for:
- Author name (for git commits)
- Author email (for git commits)
5. Write config
Create ~/.cortex/ directory if needed, then write ~/.cortex/config.json:
{
"vault_path": "<user's answer>",
"author": "<name>",
"author_email": "<email>",
"git": {
"auto_commit": true,
"auto_push": false
}
}
6. Initialize vault structure
Ensure these directories exist in the vault:
Raw/Notes/Projects/Weekly/
Ensure log.md exists at the vault root. If missing, create it with:
---
created: <today>
---
# Cortex Log
Append-only record of vault operations (distill, evolve).
---
The file is append-only; do not overwrite if it exists.
7. Initialize git
If the vault is not a git repo, run git init and create an initial commit.
8. Rebuild _index.md
Scan every page under Notes/<topic>/ and Projects/<repo>/, skipping any path
containing _archive. For each page extract the title, the tags from
frontmatter, and a one-line summary.
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.
- 2d ago First seen · 161 lines · 17 tokens per session scan A be7aadd506ba
genesis is a command published in the GitHub repository XBlueSky/cortexes (20 stars, last pushed 27d ago), licensed Apache-2.0. It adds 17 tokens to every session and 1,016 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.
Other commands, from other repositories
search-code
Hybrid code search — semantic + keyword + BM25.
index
Visual overview of Beacon index — chunks, coverage, provider. Pass --files to list indexed files.
config
View and modify Beacon configuration — providers, thresholds, indexing rules.
blacklist
Manage Beacon indexing blacklist — prevent indexing of dangerous directories.
whitelist
Manage Beacon indexing whitelist — allow indexing in specific directories that would otherwise be blacklisted.
run-indexer
Manually trigger Beacon indexing (useful when auto-index is off).