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/evolvegit 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 | $0.00146 |
| Opus 5 | $0.00009 | $0.00073 |
| Sonnet 5 | $0.00003 | $0.00029 |
| Haiku 4.5 | $0.00002 | $0.00015 |
Grade A, and why
evolve 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.
What it actually says
Use the cortex-evolve skill to save content to the cortex vault.
If the user provided arguments, use them as the content or topic to save. If no arguments, ask the user what they want to save.
Determine the content type (Notes or Projects) and write the content following the cortex-evolve skill's templates and conventions. Always update _index.md after writing.
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 · 24 lines · 17 tokens per session scan A 979574170d16
evolve is a command published in the GitHub repository XBlueSky/cortexes (20 stars, last pushed 26d ago), licensed Apache-2.0. It adds 17 tokens to every session and 146 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).