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/takeoffgit 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 | $0.00020 | $0.00195 |
| Opus 5 | $0.00010 | $0.00097 |
| Sonnet 5 | $0.00004 | $0.00039 |
| Haiku 4.5 | $0.00002 | $0.00019 |
Grade A, and why
takeoff 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-takeoff skill.
- No argument or
<topic>: create — curate the current session into that work line's baton (without a topic the skill reuses or derives one). resume [topic]: load a pending baton and continue (do not delete it).done [topic]: clear a baton (soft-delete; defaults to the baton this session resumed, otherwise refuses and lists the candidates).
Follow the skill's full process, including the takeoff.sh prepare
git-safety preflight before writing and the explicit-cwd rule for every
takeoff.sh call.
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 · 20 tokens per session scan A 22df81cc8f25
takeoff is a command published in the GitHub repository XBlueSky/cortexes (20 stars, last pushed 27d ago), licensed Apache-2.0. It adds 20 tokens to every session and 195 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).