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 zeenie-ai/OpenCompany --skill google-calendar-skillgit clone --depth 1 https://github.com/zeenie-ai/OpenCompanyWrote 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/zeenie-ai/opencompany/google-calendar-skill)<a href="https://agentmods.dev/skills/zeenie-ai/opencompany/google-calendar-skill"><img src="https://agentmods.dev/badge/skills/zeenie-ai/opencompany/google-calendar-skill/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/zeenie-ai/opencompany/google-calendar-skill"><img src="https://agentmods.dev/badge/skills/zeenie-ai/opencompany/google-calendar-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00026 | $0.01175 |
| Opus 5 | $0.00013 | $0.00588 |
| Sonnet 5 | $0.00005 | $0.00235 |
| Haiku 4.5 | $0.00003 | $0.00118 |
Grade A, and why
google-calendar-skill 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 13d 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 — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Google Calendar Skill
Manage Google Calendar events - create, list, update, and delete.
Tool: google_calendar
Consolidated Google Calendar tool with operation parameter.
Operations
| Operation | Description | Required Fields |
|---|---|---|
create |
Create a new event | title, start_time, end_time |
list |
List events in date range | (none, defaults to this week) |
update |
Update an existing event | event_id |
delete |
Delete an event | event_id |
create - Create a new event
| Field | Type | Required | Description |
|---|---|---|---|
| operation | string | Yes | Must be "create" |
| title | string | Yes | Event title/summary |
| start_time | string | Yes | Start time in ISO 8601 format |
| end_time | string | Yes | End time in ISO 8601 format |
| description | string | No | Event description |
| location | string | No | Event location |
| attendees | string | No | Comma-separated email addresses |
| reminder_minutes | integer | No | Minutes before event for reminder |
| timezone | string | No | Timezone (default: user's timezone) |
Example - Simple event:
{
"operation": "create",
"title": "Team Meeting",
"start_time": "2024-02-01T14:00:00",
"end_time": "2024-02-01T15:00:00",
"description": "Weekly team sync"
}
Example - Event with attendees:
{
"operation": "create",
"title": "Project Review",
"start_time": "2024-02-01T10:00:00",
"end_time": "2024-02-01T11:30:00",
"location": "Conference Room A",
"attendees": "[email protected],[email protected]",
"reminder_minutes": 30
}
list - List events in date range
| Field | Type | Required | Description |
|---|---|---|---|
| operation | string | Yes | Must be "list" |
| start_date | string | No | Start date (ISO 8601, default: today) |
| end_date | string | No | End date (ISO 8601, default: 7 days ahead) |
| max_results | integer | No | Maximum results (default: 10, max: 100) |
| calendar_id | string | No | Calendar ID (default: primary) |
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.
- 13d ago First seen · 146 lines · 26 tokens per session scan A 54368a46500c
google-calendar-skill is a skill published in the GitHub repository zeenie-ai/OpenCompany (883 stars, last pushed today), licensed MIT. It adds 26 tokens to every session and 1,175 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.
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