Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/Abilityai/corneliusnpx agentmods add skills/abilityai/cornelius/first-runWrote 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/skills/abilityai/cornelius/first-run)<a href="https://agentmods.dev/skills/abilityai/cornelius/first-run"><img src="https://agentmods.dev/badge/skills/abilityai/cornelius/first-run/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/skills/abilityai/cornelius/first-run"><img src="https://agentmods.dev/badge/skills/abilityai/cornelius/first-run.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 | $0.00091 | $0.02061 |
| Opus 5.5 | $0.00036 | $0.00824 |
| Sonnet 5.5 | $0.00018 | $0.00412 |
| Haiku 4.5 | $0.00009 | $0.00206 |
Grade A, and why
first-run 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 8d 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 — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.
First Run
ℹ️ Print one line first:
first-run v1.2 - recent: foreground install, never detached (orphan sweeper). Then proceed.
Purpose
A fresh copy of Cornelius has the whole seeded knowledge base and a prebuilt search index, but not the Python environment that reads it, and the index still carries the file paths of the machine that built it. Until both are fixed, /recall, /advise, /decide, /find-connections, /extract-insights and every other search-backed playbook return nothing or fail. This playbook takes the vault from "cloned" to "answers questions" in one command, and reports honestly what it found at every step.
Safe to run repeatedly: every step checks before it acts.
State Dependencies
| Source | Location | Read | Write |
|---|---|---|---|
| Search engine | resources/local-brain-search/ (venv, requirements.txt, run_daemon.sh, run_index.sh, run_search.sh) |
✓ | ✓ (venv, daemon, index files) |
| Index manifest | resources/local-brain-search/data/manifest.json |
✓ | via reindex |
| Bootstrap log and marker (Trinity) | ~/.trinity-bootstrap.log, ~/.trinity-bootstrap.done, ~/.trinity-bootstrap.lock |
✓ | ✓ |
| The vault | $VAULT_BASE_PATH (default ./Brain) |
✓ |
Process
Work from the agent root (the folder that holds Brain/ and resources/). Keep every Bash call short (under 60 s): long installs run detached and are polled, so the platform's stall watchdog never fires.
Step 1 - Is a bootstrap already running or done?
ls -la ~/.trinity-bootstrap.done ~/.trinity-bootstrap.lock 2>/dev/null; tail -5 ~/.trinity-bootstrap.log 2>/dev/null
.donepresent → the boot-time bootstrap finished; skip to Step 5 (verify)..lockpresent and the log still growing → it is running; polltail -3 ~/.trinity-bootstrap.logevery 30 s until.doneappears or the log stops for 2 minutes. A log that stops after "venv built" or "reindex start" with no process behind it means the boot-time bootstrap was swept (see Step 2) - continue with Step 2; every step checks before it acts, so nothing is redone.- Neither → continue with Step 2.
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.
- 8d ago First seen · 119 lines · 91 tokens per session scan A 07fabf2e2391
first-run is a skill published in the GitHub repository Abilityai/cornelius (110 stars, last pushed 8d ago), licensed MIT. It adds 91 tokens to every session and 2,061 once invoked, about $0.0004 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 2026-10-09.
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