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 agentmods add commands/derek-larson14/delegate/calendargit clone --depth 1 https://github.com/derek-larson14/delegateWhat 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 | $0.00013 | $0.01264 |
| Opus 5 | $0.00006 | $0.00632 |
| Sonnet 5 | $0.00003 | $0.00253 |
| Haiku 4.5 | $0.00001 | $0.00126 |
Grade A, and why
calendar 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 2d 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 — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Calendar Assistant
Access calendar data via icalBuddy (reads from Mac Calendar app, which syncs with Google Calendar, iCloud, etc).
Mac only. If the user is on Windows or Linux, tell them: "/calendar uses a Mac-only tool. For calendar access, try Rube which can connect to Google Calendar, Outlook, and other services."
Setup (handle automatically)
Step 1: Check if icalBuddy is installed
which icalBuddy
If not found:
- Check if Homebrew exists:
which brew - If brew exists → run
brew install ical-buddyyourself - If no brew → tell user: "icalBuddy needs Homebrew. In Finder, open your workspace folder and double-click
SETUP.command- it'll install Homebrew and the tools you need. Follow the prompts in the terminal window, then try/calendaragain."
Step 2: Test calendar access
After installing (or if already installed), run:
icalBuddy calendars
If you see "error: No calendars." this means the app running Claude needs calendar permission. Tell the user:
Calendar permission needed. Go to System Settings → Privacy & Security → Calendars and enable:
- Obsidian (if you're running Claude from Obsidian)
- Terminal (if you're running Claude from Terminal)
If permission is already enabled but it's still not working, the permission entry might be corrupted. Run this in Terminal to reset Obsidian's calendar permission:
tccutil reset Calendar md.obsidian
Then try /calendar again and click Allow when macOS prompts.
If it lists calendars, you're good to proceed with their question.
Event Commands
# Today's events
icalBuddy eventsToday
# What's happening right now
icalBuddy eventsNow
# Today + N days (e.g., next 7 days)
icalBuddy eventsToday+7
# Specific date range (MUST use YYYY-MM-DD format, not relative words like 'tomorrow')
icalBuddy eventsFrom:'2025-01-20' to:'2025-01-25'
# Only events from now on (skip past events today)
icalBuddy -n eventsToday
# List all calendars
icalBuddy calendars
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.
- 2d ago First seen · 155 lines · 13 tokens per session scan A 91c9cabfe343
calendar is a command published in the GitHub repository derek-larson14/delegate (39 stars, last pushed 4mo ago), licensed MIT. It adds 13 tokens to every session and 1,264 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.
Other commands, from other repositories
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checklist
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clarify
Identify underspecified areas in the current feature spec by asking up to 5 highly targeted clarification questions and encoding answers back into the spec.
specify
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analyze
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constitution
Create or update the project constitution from interactive or provided principle inputs.