Local Tools
freestylefly/wesight
Access local system resources including Calendar on macOS and Windows.
View Outlook Calendar events for any day, create and manage events, and check availability
MITAuto-check passed
Install Outlook Calendar
$ npx skills add vellum-ai/vellum-assistant --skill outlook-calendar -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install vellum-ai/vellum-assistant outlook-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/vellum-ai/vellum-assistant.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/outlook-calendar .claude/skills/outlook-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 "outlook-calendar" agent skill from https://github.com/vellum-ai/vellum-assistant/tree/main/skills/outlook-calendar into .claude/skills/outlook-calendar/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "outlook-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/vellum-ai/vellum-assistant/tree/main/skills/outlook-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 vellum-ai/vellum-assistant --skill outlook-calendar -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install vellum-ai/vellum-assistant outlook-calendar --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vellum-ai/vellum-assistant.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/outlook-calendar .agents/skills/outlook-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 "outlook-calendar" agent skill from https://github.com/vellum-ai/vellum-assistant/tree/main/skills/outlook-calendar into .agents/skills/outlook-calendar/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "outlook-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 vellum-ai/vellum-assistant --skill outlook-calendar -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install vellum-ai/vellum-assistant outlook-calendar --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vellum-ai/vellum-assistant.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/outlook-calendar .cursor/skills/outlook-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 "outlook-calendar" agent skill from https://github.com/vellum-ai/vellum-assistant/tree/main/skills/outlook-calendar into .cursor/skills/outlook-calendar/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "outlook-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/vellum-ai/vellum-assistant.git --path skills/outlook-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 vellum-ai/vellum-assistant --skill outlook-calendar -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install vellum-ai/vellum-assistant outlook-calendar --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vellum-ai/vellum-assistant.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/outlook-calendar .gemini/skills/outlook-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 "outlook-calendar" agent skill from https://github.com/vellum-ai/vellum-assistant/tree/main/skills/outlook-calendar into .gemini/skills/outlook-calendar/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "outlook-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 vellum-ai/vellum-assistant outlook-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 vellum-ai/vellum-assistant --skill outlook-calendar -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/vellum-ai/vellum-assistant.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/outlook-calendar .github/skills/outlook-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 "outlook-calendar" agent skill from https://github.com/vellum-ai/vellum-assistant/tree/main/skills/outlook-calendar into .github/skills/outlook-calendar/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "outlook-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 vellum-ai/vellum-assistant --skill outlook-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 vellum-ai/vellum-assistant outlook-calendar --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vellum-ai/vellum-assistant.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/outlook-calendar .opencode/skills/outlook-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 "outlook-calendar" agent skill from https://github.com/vellum-ai/vellum-assistant/tree/main/skills/outlook-calendar into .opencode/skills/outlook-calendar/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "outlook-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
outlook-calendar- GitHub stars
- 1.4k
- Token cost
- ~1.7k tokens
- SKILL.md length
- 681 words
- Files
- 6 (incl. scripts, assets)
- Skills in repo
- 108
- Repo updated
- First seen
- Licence
- MIT
At a glance
View Outlook Calendar events for any day, create and manage events, and check availability
- Works in 2 steps: Check connection health first. Run… → If no connection is found or the status…
- SKILL.md covers Script Reference, Usage Examples, Connection Setup and Scheduling Playbook, plus 3 more sections
- Runs TypeScript scripts from its folder; calls bun
What it does
Outlook Calendar is an agent skill from vellum-ai/vellum-assistant. View Outlook Calendar events for any day, create and manage events, and check availability
Its SKILL.md is about 1.7k tokens, which your agent loads only when the skill is triggered. The skill folder holds 8 other files, including scripts and assets (for example `scripts/lib/common.test.ts`, `scripts/lib/common.ts` and `scripts/lib/outlook-cal-client.ts`). Compatibility notes: Designed for Vellum personal assistants
It works with Microsoft Outlook. The repository describes itself as: An AI Assistant that’s easy to setup, does your work 24/7, knows your preferences and gets better over time. The licence is MIT.
Example prompts
- “/outlook-calendar”
Requirements
- Node.js
- Compatibility (from SKILL.md): Designed for Vellum personal assistants
Workflow steps
2 steps, taken from the first numbered list in SKILL.md.
- Check connection health first. Run assistant oauth status outlook. This checks whether the user's Outlook/Microsoft account is connected…
- If no connection is found or the status check fails: Load the vellum-oauth-integrations skill. The skill will evaluate whether managed or…
What it can do on your machine
Read from SKILL.md and the folder at commit 33cc983. 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
Ships 4 files in scripts/ (TypeScript), which the agent can run.
Shell commands in SKILL.md call:
bun
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.
Compatibility
Designed for Vellum personal assistants
From compatibility in the SKILL.md frontmatter.
Context cost
Outlook Calendar loads about 1.7k tokens when it runs. Until then it costs about 27 tokens; SKILL.md has 681 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); the scripts in this folder are not scanned.
SKILL.md
The full file from vellum-ai/vellum-assistant at commit 33cc983, republished under its MIT licence (© vellum-ai). 681 words, ~1,670 tokens.
Download SKILL.mdSave it as
.claude/skills/outlook-calendar/SKILL.md (or your agent's skills folder). This skill also uses 5 other files; get the full folder from GitHub.- name
- outlook-calendar
- description
- View Outlook Calendar events for any day, create and manage events, and check availability
- compatibility
- Designed for Vellum personal assistants
- metadata.icon
- assets/icon.svg
- metadata.emoji
- 📅
Script Reference
All operations use a single CLI script that returns JSON:
- Success:
{ "ok": true, "data": ... } - Failure:
{ "ok": false, "error": "..." }
| Script | Subcommand | Description |
|---|---|---|
scripts/outlook-cal.ts | list | List events within a date range (supports OData $filter) |
scripts/outlook-cal.ts | get | Get full details of a specific event |
scripts/outlook-cal.ts | create | Create a new event (requires user confirmation) |
scripts/outlook-cal.ts | availability | Check free/busy times across calendars |
scripts/outlook-cal.ts | rsvp | Respond to an event invitation (accepted, declined, tentative) |
Usage Examples
# List events in a date range
bun scripts/outlook-cal.ts list --start-date-time "2024-01-15T00:00:00Z" --end-date-time "2024-01-22T00:00:00Z"
# List events with an OData filter
bun scripts/outlook-cal.ts list --filter "subject eq 'Team Meeting'"
# Get full details of a specific event
bun scripts/outlook-cal.ts get --event-id "AAMkAD..."
# Create a new event (gates on assistant ui confirm)
bun scripts/outlook-cal.ts create --subject "Team Meeting" --start "2024-01-15T09:00:00-05:00" --end "2024-01-15T10:00:00-05:00" --timezone "America/New_York"
# Check availability for a day
bun scripts/outlook-cal.ts availability --start "2024-01-15T00:00:00Z" --end "2024-01-15T23:59:59Z"
# RSVP to an event invitation
bun scripts/outlook-cal.ts rsvp --event-id "AAMkAD..." --response accepted
# Target a specific connected account (see "Multiple Accounts" below)
bun scripts/outlook-cal.ts list --start-date-time "2024-01-15T00:00:00Z" --end-date-time "2024-01-22T00:00:00Z" --account "work@example.com"Every subcommand accepts --account <email> to select which connected Outlook/Microsoft account the request runs against. When omitted, the request runs against a single account chosen automatically — safe only when exactly one Outlook account is connected. Each JSON envelope echoes the queried account in an account field when it is reported by the OAuth layer, so an empty result is self-describing (e.g. No events found in the specified time range for work@example.com.).
Connection Setup
- Check connection health first. Run
assistant oauth status outlook. This checks whether the user's Outlook/Microsoft account is connected and the token is valid. Outlook Calendar shares the same OAuth connection as Outlook email — if the user already connected Outlook email, calendar access is included.- If the status output shows more than one active connection, you MUST pass
--account <email>on everyscripts/outlook-cal.tsinvocation, matching the calendar the user is asking about. When the user references a calendar by name or company (e.g. "my Acme calendar"), map it to the connected account email before querying. Omitting--accountwith multiple connections silently queries one arbitrary account — an empty or partial result then looks like a genuinely free calendar when it is really the wrong account. Confirm theaccountfield in each response matches the account you intended.
- If the status output shows more than one active connection, you MUST pass
- If no connection is found or the status check fails: Load the
vellum-oauth-integrationsskill. The skill will evaluate whether managed or your-own mode is appropriate and guide the user accordingly.
Scheduling Playbook
When the user wants to schedule something:
- Always check availability first before proposing times. Use
bun scripts/outlook-cal.ts availabilityto find free slots. - Propose 2-3 available time options to the user.
- Once the user picks a time, create the event with
bun scripts/outlook-cal.ts create. - If adding other attendees, mention that they'll receive an invitation email.
Show full SKILL.md (310 more words)Show less
Date & Time Handling
- Use ISO 8601 format for dates and times (e.g.,
2024-01-15T09:00:00-05:00). - For all-day events, Outlook uses
dateTimewith anisAllDayflag — set the start and end as date-only values (e.g.,2024-01-15). - Always ask the user for their timezone if it's not already known from context or their profile.
- When listing events, display times in the user's local timezone.
- Timezone edge case: When
dateTimealready includes a UTC offset (e.g.,2024-01-15T09:00:00-05:00), do not send a separatetimeZoneparameter — the offset in the datetime string is authoritative and sending both can cause conflicts.
Confidence & Safety
Create and RSVP are medium-risk operations:
- Create: The
createsubcommand gates onassistant ui confirm— it presents a confirmation dialog to the user and only proceeds if approved. Pass--skip-confirmwhen the user has already given explicit confirmation in the conversation. - RSVP: The
rsvpsubcommand gates onassistant ui confirm— it presents a confirmation dialog showing the event, current status, and new response. Pass--skip-confirmwhen the user has already given explicit confirmation in the conversation.
Error Recovery
When a calendar script fails with a token or authorization error:
- Try to reconnect silently. Run
assistant oauth ping outlook. This often resolves expired tokens automatically. - If reconnection fails, go straight to setup. Don't present options, ask which route the user prefers, or explain what went wrong technically. Just tell the user briefly (e.g., "Outlook Calendar needs to be reconnected - let me set that up") and immediately load the
vellum-oauth-integrationsskill. The user came to you to get something done, not to troubleshoot - make it seamless. - Never try alternative approaches. Don't use curl, browser automation, or any workaround. If the scripts can't do it, the reconnection flow is the answer.
- Never expose error details. The user doesn't need to see error messages about tokens, OAuth, or API failures. Translate errors into plain language.
© vellum-ai, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 5 other files (scripts, assets) in skills/outlook-calendar of vellum-ai/vellum-assistant.
- SKILL.md
- assets/icon.svg
- scripts/lib/common.test.ts
- scripts/lib/common.ts
- scripts/lib/outlook-cal-client.ts
- scripts/outlook-cal.ts
Open the folder on GitHubat commit 33cc983
Compare with similar skills
Outlook 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 |
|---|---|---|---|---|---|---|
| Outlook Calendar this skillvellum-ai/vellum-assistant | 1.4k | — | ~1.7k | Automated safety check: Pass | MIT | |
| Local Toolsfreestylefly/wesight | 946 | — | ~3.4k | Automated safety check: Pass | MIT | |
| Outlooksigcli/sigcli | 293 | — | ~2.6k | Automated safety check: Pass | MIT | |
| Outlook Emails Lawvablelawve-ai/awesome-legal-skills | 847 | — | ~672 | Automated safety check: Pass | AGPL-3.0 | |
| Outlook Calendar Automationdavepoon/buildwithclaude | 3.6k | 5 repos | ~2.4k | Automated safety check: Pass | MIT | |
| Analyzing Outlook Pst For Email Forensicsmukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~3.2k | Automated safety check: Pass | Apache-2.0 |
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Questions about Outlook Calendar
What does Outlook Calendar do?
View Outlook Calendar events for any day, create and manage events, and check availability. Outlook Calendar is an agent skill from vellum-ai/vellum-assistant.
How do I install Outlook Calendar in Claude Code?
Run `npx skills add vellum-ai/vellum-assistant --skill outlook-calendar -a claude-code`. Or copy the skill folder (skills/outlook-calendar in vellum-ai/vellum-assistant) into .claude/skills/outlook-calendar in your project. Claude Code loads it when a task matches its description.
How do I install Outlook Calendar in Codex?
Run `npx skills add vellum-ai/vellum-assistant --skill outlook-calendar -a codex`. Or copy the skill folder (skills/outlook-calendar in vellum-ai/vellum-assistant) into .agents/skills/outlook-calendar in your project. Codex loads it when a task matches its description.
Can I use Outlook 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 vellum-ai/vellum-assistant --skill outlook-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/outlook-calendar, .gemini/skills/outlook-calendar, .github/skills/outlook-calendar and .opencode/skills/outlook-calendar in your project.
What does Outlook Calendar need to run?
Going by SKILL.md and its folder, Outlook Calendar needs TypeScript for the scripts in its folder and the command-line tools its instructions call (bun). Our summary lists: Node.js. Compatibility (from SKILL.md): Designed for Vellum personal assistants.
Does Outlook 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 Outlook 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Outlook Calendar use?
Outlook Calendar is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Outlook Calendar use?
About 1.7k tokens (SKILL.md is roughly 6.7k 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 Outlook Calendar?
Skills that share tags, products or a category with Outlook Calendar: Local Tools (freestylefly/wesight, 946 stars), Outlook (sigcli/sigcli, 293 stars), Outlook Emails Lawvable (lawve-ai/awesome-legal-skills, 847 stars) and Outlook Calendar Automation (davepoon/buildwithclaude, 3.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Outlook Calendar?
vellum-ai (a GitHub organization) maintains it in vellum-ai/vellum-assistant, which has 1,408 GitHub stars. The repository holds 108 skills in this directory. The repository was last updated on October 9, 2026.
Source: vellum-ai/vellum-assistant on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.