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 skills/ne11nn/cantos-plugin/name-sessionnpx skills add ne11nn/cantos-plugin --skill name-sessiongit clone --depth 1 https://github.com/ne11nn/cantos-pluginWrote 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/ne11nn/cantos-plugin/name-session)<a href="https://agentmods.dev/skills/ne11nn/cantos-plugin/name-session"><img src="https://agentmods.dev/badge/skills/ne11nn/cantos-plugin/name-session.svg" alt="Measured on agentmods" 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 | $0.00023 | $0.00139 |
| Opus 5 | $0.00012 | $0.00069 |
| Sonnet 5 | $0.00005 | $0.00028 |
| Haiku 4.5 | $0.00002 | $0.00014 |
Grade A, and why
name-session 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 4d 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
Look at the conversation so far — what assistant is active, what topics have been discussed, what work has been done.
Output exactly one line in this format:
Session: [AssistantName] | [Short title]
- AssistantName: the active assistant (Cantos, Folio, Lyren, Pylon). Use Cantos if no assistant has been activated.
- Short title: 3–5 words capturing what this session has actually been about, not what it started as.
Output nothing else.
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.
- 4d ago First seen · 17 lines · 23 tokens per session scan A 2b8da0f6a3eb
name-session is a skill published in the GitHub repository ne11nn/cantos-plugin (1 stars, last pushed yesterday), licensed MIT. It adds 23 tokens to every session and 139 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 2026-08-31.
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