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 isorensen/lox-brain --skill sync-calendargit clone --depth 1 https://github.com/isorensen/lox-brainWrote 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/isorensen/lox-brain/sync-calendar)<a href="https://agentmods.dev/skills/isorensen/lox-brain/sync-calendar"><img src="https://agentmods.dev/badge/skills/isorensen/lox-brain/sync-calendar/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/isorensen/lox-brain/sync-calendar"><img src="https://agentmods.dev/badge/skills/isorensen/lox-brain/sync-calendar.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 | $0.00029 | $0.03531 |
| Opus 5 | $0.00015 | $0.01766 |
| Sonnet 5 | $0.00006 | $0.00706 |
| Haiku 4.5 | $0.00003 | $0.00353 |
Grade A, and why
sync-calendar 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 — 361 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Sync Calendar — Google Calendar to Obsidian via Lox
Syncs Google Calendar events to Obsidian meeting notes, including Gemini AI meeting summaries when available. Uses three MCP servers: Google Calendar, Gmail, and Lox MCP Server.
Prerequisites
- Google Calendar MCP — connected via Claude.ai OAuth (provides
gcal_list_events) - Gmail MCP — connected via Claude.ai OAuth (provides
gmail_search_messages,gmail_read_message) — optional, needed only for Gemini meeting summaries - Lox MCP Server — running and accessible (provides
write_note,search_text,read_note)
If any required MCP server is unavailable, stop and tell the user which one is missing.
Configuration
This skill reads calendar sync settings from ~/.lox/config.json:
{
"sync_calendar": {
"calendars": [
{ "id": "primary", "label": "Work" },
{ "id": "[email protected]", "label": "Secondary" }
],
"timezone": "America/Sao_Paulo"
}
}
If sync_calendar is not configured, the skill prompts the user for setup on first run.
calendars— list of Google Calendar IDs to sync. Theidis passed directly togcal_list_events; thelabelis used in notes and the summary output.timezone— IANA timezone string. Defaults to the user's system timezone if omitted.
Folder mapping by preset:
| Preset | Meeting notes folder |
|---|---|
| zettelkasten | 7 - Meeting Notes/ |
| para | 2 - Projects/Meetings/ |
Arguments
The skill receives an optional date or date range as argument:
- No argument -> today's date
- Single date -> that day (e.g.,
2026-03-11) - Date range -> inclusive range (e.g.,
2026-03-10 2026-03-12or2026-03-10..2026-03-12)
Parse flexibly: accept YYYY-MM-DD, DD/MM/YYYY, today, yesterday, last monday, etc.
Workflow
Step 1: Fetch Events
Read ~/.lox/config.json to get the sync_calendar.calendars list and timezone. For each date in the range, call gcal_list_events once per calendar. Since the calls are independent, run them in parallel:
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 · 361 lines · 29 tokens per session scan A 82f3066b0dee
sync-calendar is a skill published in the GitHub repository isorensen/lox-brain (2 stars, last pushed 2d ago), licensed MIT. It adds 29 tokens to every session and 3,531 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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