Google Calendar
codewhale-hq/Codewhale
Reads schedules, checks free and busy time, and creates or updates Google Calendar events through the Calendar API, with care around invites and recurring series.
Manage calendars and events via Radicale CalDAV server. An agent skill from evolvent-ai/ClawMark.
Custom licenceAuto-check passed
Install Calendar
$ npx skills add evolvent-ai/ClawMark --skill calendar -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install evolvent-ai/ClawMark calendar --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/evolvent-ai/ClawMark.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/calendar .claude/skills/calendar && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "calendar" agent skill from https://github.com/evolvent-ai/ClawMark/tree/main/skills/calendar into .claude/skills/calendar/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "calendar", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/evolvent-ai/ClawMark/tree/main/skills/calendarType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add evolvent-ai/ClawMark --skill calendar -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install evolvent-ai/ClawMark calendar --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/evolvent-ai/ClawMark.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/calendar .agents/skills/calendar && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "calendar" agent skill from https://github.com/evolvent-ai/ClawMark/tree/main/skills/calendar into .agents/skills/calendar/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "calendar", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add evolvent-ai/ClawMark --skill calendar -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install evolvent-ai/ClawMark calendar --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/evolvent-ai/ClawMark.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/calendar .cursor/skills/calendar && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "calendar" agent skill from https://github.com/evolvent-ai/ClawMark/tree/main/skills/calendar into .cursor/skills/calendar/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "calendar", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/evolvent-ai/ClawMark.git --path skills/calendar--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add evolvent-ai/ClawMark --skill calendar -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install evolvent-ai/ClawMark calendar --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/evolvent-ai/ClawMark.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/calendar .gemini/skills/calendar && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "calendar" agent skill from https://github.com/evolvent-ai/ClawMark/tree/main/skills/calendar into .gemini/skills/calendar/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "calendar", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install evolvent-ai/ClawMark calendarInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add evolvent-ai/ClawMark --skill calendar -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/evolvent-ai/ClawMark.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/calendar .github/skills/calendar && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "calendar" agent skill from https://github.com/evolvent-ai/ClawMark/tree/main/skills/calendar into .github/skills/calendar/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "calendar", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add evolvent-ai/ClawMark --skill calendar -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install evolvent-ai/ClawMark calendar --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/evolvent-ai/ClawMark.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/calendar .opencode/skills/calendar && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "calendar" agent skill from https://github.com/evolvent-ai/ClawMark/tree/main/skills/calendar into .opencode/skills/calendar/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "calendar", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
calendar- GitHub stars
- 124
- Token cost
- ~531 tokens
- SKILL.md length
- 88 words
- Files
- 1
- Skills in repo
- 3
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Manage calendars and events via Radicale CalDAV server. An agent skill from evolvent-ai/ClawMark.
- SKILL.md covers Server Info, Connect, List Calendars and Get a Calendar by Name, plus 5 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Calendar is an agent skill from evolvent-ai/ClawMark. Manage calendars and events via Radicale CalDAV server
Its SKILL.md is about 530 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The repository describes itself as: 🦞 ClawMark: A Living-World Benchmark for Multi-Day, Multimodal Coworker Agents.
Example prompts
- “/calendar”
Requirements
- Python 3
What it can do on your machine
Read from SKILL.md and the folder at commit d1b641b. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are python).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Calendar loads about 531 tokens when it runs. Until then it costs about 16 tokens; SKILL.md has 88 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 88 words (~531 tokens).
“Create, query, and delete calendar events on a CalDAV server using Python's caldav library (pre-installed in container).”
- name
- calendar
Files
Just SKILL.md in skills/calendar of evolvent-ai/ClawMark.
Open the folder on GitHubat commit d1b641b
Compare with similar skills
Calendar next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Calendar this skillevolvent-ai/ClawMark | 124 | — | ~531 | Automated safety check: Pass | Custom licence | |
| Google Calendarcodewhale-hq/Codewhale | 41k | — | ~512 | Automated safety check: Pass | MIT | |
| Calendar Event Creatorjeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~584 | Automated safety check: Pass | MIT | |
| Eventscoreyhaines31/marketingskills | 54k | — | ~3k | Automated safety check: Pass | MIT | |
| Caldav Calendarsundial-org/awesome-openclaw-skills | 663 | 2 repos | ~865 | Automated safety check: Pass | None | |
| Skill Event CalendarZJU-REAL/Easel | 3.3k | — | ~893 | Automated safety check: Pass | Apache-2.0 |
Similar skills
Calendar Event Creator
jeremylongshore/tons-of-skills-marketplace
Create calendar event creator operations. An agent skill from jeremylongshore/tons-of-skills-marketplace.
Events
coreyhaines31/marketingskills
When the user wants to plan, run, sponsor, speak at, or get pipeline from events — webinars, conferences, trade shows, meetups, dinners, workshops, virtual summits, or user conferences.
Caldav Calendar
sundial-org/awesome-openclaw-skills
Sync and query CalDAV calendars (iCloud, Google, Fastmail, Nextcloud, etc.) using vdirsyncer + khal.
Skill Event Calendar
ZJU-REAL/Easel
查询未来 N 天的节日、纪念日、电商节点、行业事件，为创作者提供内容蹭点. An agent skill from ZJU-REAL/Easel.
Team Calendar
sickn33/agentic-awesome-skills
Team calendar: event, type, date and time with time zone, attendees, organizer, location and source module.
More from evolvent-ai/ClawMark
Questions about Calendar
What does Calendar do?
Manage calendars and events via Radicale CalDAV server. An agent skill from evolvent-ai/ClawMark. Calendar is an agent skill from evolvent-ai/ClawMark.
How do I install Calendar in Claude Code?
Run `npx skills add evolvent-ai/ClawMark --skill calendar -a claude-code`. Or copy the skill folder (skills/calendar in evolvent-ai/ClawMark) into .claude/skills/calendar in your project. Claude Code loads it when a task matches its description.
How do I install Calendar in Codex?
Run `npx skills add evolvent-ai/ClawMark --skill calendar -a codex`. Or copy the skill folder (skills/calendar in evolvent-ai/ClawMark) into .agents/skills/calendar in your project. Codex loads it when a task matches its description.
Can I use Calendar in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add evolvent-ai/ClawMark --skill calendar -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/calendar, .gemini/skills/calendar, .github/skills/calendar and .opencode/skills/calendar in your project.
What does Calendar need to run?
SKILL.md names no scripts, command-line tools or credentials: Calendar is instructions for the agent only. Our summary lists: Python 3.
Does Calendar access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Calendar safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Calendar use?
Calendar has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Calendar use?
About 531 tokens (SKILL.md is roughly 2.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Calendar?
Skills that share tags, products or a category with Calendar: Google Calendar (codewhale-hq/Codewhale, 41k stars), Calendar Event Creator (jeremylongshore/tons-of-skills-marketplace, 2.8k stars), Events (coreyhaines31/marketingskills, 54k stars) and Caldav Calendar (sundial-org/awesome-openclaw-skills, 663 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Calendar?
evolvent-ai (a GitHub organization) maintains it in evolvent-ai/ClawMark, which has 124 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on May 28, 2026.
Source: evolvent-ai/ClawMark on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.