google-calendar SKILL.md skillA
google-calendar from vellum-ai/vellum-assistant is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add vellum-ai/vellum-assistant/google-calendar@git:20260903.5802532Pins git:20260903.5802532 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- vellum-ai/vellum-assistant
- Path
skills/google-calendar/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260903.5802532, committed Sep 3, 2026
- First version recorded
- Jun 2, 2026
- Size
- 6,092 bytes
- Repository stars
- 1,467
- License
- MIT
View Google Calendar events for any day, create and manage events, and check availability.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
## Script Reference
All operations use a single CLI script that returns JSON:
- **Success**: `{ "ok": true, "data": ... }`
- **Failure**: `{ "ok": false, "error": "..." }`
| Script | Subcommand | Description |
| ----------------- | -------------- | -------------------------------------------------------------- |
| `scripts/gcal.ts` | `list` | List events within a date range |
| `scripts/gcal.ts` | `get` | Get full details of a specific event |
| `scripts/gcal.ts` | `create` | Create a new event (**requires user confirmation**) |
| `scripts/gcal.ts` | `availability` | Check free/busy times across calendars |
| `scripts/gcal.ts` | `rsvp` | Respond to an event invitation (accepted, declined, tentative) |
## Usage Examples
```bash
# List events in a date range
bun scripts/gcal.ts list --time-min "2024-01-15T00:00:00Z" --time-max "2024-01-22T00:00:00Z"
# Get full details of a specific event
bun scripts/gcal.ts get --event-id "abc123"
# Create a new event (gates on assistant ui confirm)
…Read the whole file at its exact version.
How to install
mdr add vellum-ai/vellum-assistant/google-calendar@sha256:fbfd3eac49312575The line at the top of this page pins the label git:20260903.5802532, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_vfvoff6jxrzemlv2)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jun 2, 2026 and Sep 3, 2026, about one every 23 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260903.5802532 latest | 2026-09-03 | 5802532 | 6,092 B | A | view · diff |
| git:20260810.33e6f3f | 2026-08-10 | 33e6f3f | 6,366 B | A | view · diff |
| git:20260707.0c1990a | 2026-07-07 | 0c1990a | 6,361 B | A | view · diff |
| git:20260603.ff934d9 | 2026-06-03 | ff934d9 | 4,914 B | A | view · diff |
| git:20260602.6d9a543 | 2026-06-02 | 6d9a543 | 4,889 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6092 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
vellum-ai/vellum-assistant · 1,467 stars · license MIT · pushed 2026-10-29 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vfvoff6jxrzemlv2 GET https://markdownregistry.com/api/v1/resolve?ref=vellum-ai/vellum-assistant/google-calendar GET https://markdownregistry.com/api/v1/blob/fbfd3eac493125756ebf2aa7941475f183429a61c5920063b9b041ab88496981
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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