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 CoWork-OS/CoWork-OS --skill calendlygit clone --depth 1 https://github.com/CoWork-OS/CoWork-OSWrote 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/cowork-os/cowork-os/calendly)<a href="https://agentmods.dev/skills/cowork-os/cowork-os/calendly"><img src="https://agentmods.dev/badge/skills/cowork-os/cowork-os/calendly/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/cowork-os/cowork-os/calendly"><img src="https://agentmods.dev/badge/skills/cowork-os/cowork-os/calendly.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 | $0.00064 | $0.00467 |
| Opus 5.5 | $0.00026 | $0.00187 |
| Sonnet 5.5 | $0.00013 | $0.00093 |
| Haiku 4.5 | $0.00006 | $0.00047 |
Grade A, and why
calendly 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 1mo 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
Calendly
Purpose
Manage Calendly scheduling via the v2 API. List event types, view scheduled events, check invitee details, manage availability schedules, cancel/reschedule events, create one-off links, and configure webhooks. Use when the user asks about their calendar, upcoming meetings, scheduling links, or availability.
Routing
- Use when: User asks about Calendly meetings, scheduling links, availability, booking, upcoming events, or wants to manage their Calendly calendar
- Do not use when: User asks about Google Calendar, Apple Calendar, Outlook calendar, or general time management without Calendly
- Outputs: Meeting agendas, invitee details, availability windows, scheduling links, webhook configurations
- Success criteria: User receives accurate calendar data formatted as a clear agenda with times in their timezone
Trigger Examples
Positive
- Use the calendly skill for this request.
- Help me with calendly.
- User asks about Calendly meetings, scheduling links, availability, booking, upcoming events, or wants to manage their Calendly calendar
- Calendly: provide an actionable result.
Negative
- User asks about Google Calendar, Apple Calendar, Outlook calendar, or general time management without Calendly
- Do not use calendly for unrelated requests.
- This request is outside calendly scope.
- This is conceptual discussion only; no tool workflow is needed.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| query | string | No | What to check or manage (e.g., 'upcoming meetings', 'cancel 3pm tomorrow', 'my scheduling links') |
Runtime Prompt
- Current runtime prompt length: 845 characters.
- Runtime prompt is defined directly in
../calendly.json.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 1mo ago Changed 893f5916cc05
- 2mo ago First seen · 48 lines · 64 tokens per session scan A 573b7cb94b4a
calendly is a skill published in the GitHub repository CoWork-OS/CoWork-OS (517 stars, last pushed today), licensed MIT. It adds 64 tokens to every session and 467 once invoked, about $0.0003 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 2026-08-30.
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