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 skills add sageox/ox --skill ox-cli-session-startgit clone --depth 1 https://github.com/sageox/oxWrote 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/sageox/ox/ox-cli-session-start)<a href="https://agentmods.dev/skills/sageox/ox/ox-cli-session-start"><img src="https://agentmods.dev/badge/skills/sageox/ox/ox-cli-session-start/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/sageox/ox/ox-cli-session-start"><img src="https://agentmods.dev/badge/skills/sageox/ox/ox-cli-session-start.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 | $0.00015 | $0.00210 |
| Opus 5 | $0.00008 | $0.00105 |
| Sonnet 5 | $0.00003 | $0.00042 |
| Haiku 4.5 | $0.00002 | $0.00021 |
Grade A, and why
ox-cli-session-start 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 today.
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
Explicit invocation only. Run this when the user asks for it by name. It performs a lifecycle or diagnostic action with side effects, so never invoke it on your own initiative.
Start recording this agent session to the project ledger.
Post-Command (REQUIRED)
After the command completes, check the JSON output:
notice: If present, display the notice text to the user verbatim. This is a one-time transparency notice about session recording.guidance: Follow this guidance throughout the session. It contains instructions about plan capture, session boundaries, and troubleshooting.
$ox agent session start
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.
- today First seen · 23 lines · 15 tokens per session scan A a8c290817d21
ox-cli-session-start is a skill published in the GitHub repository sageox/ox (51 stars, last pushed today), licensed MIT. It adds 15 tokens to every session and 210 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 2026-09-08.
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