Managing Cal Com

Cal.com Management Skill

Manage and analyze Cal.com scheduling resources including bookings, event types, and availability.

API Conventions

Authentication

All API calls use API key as query parameter or Bearer token, injected automatically.

Base URL

https://api.cal.com/v1 (cloud) or self-hosted instance URL

Core Helper Function

#!/bin/bash

calcom_api() {
    local method="$1"
    local endpoint="$2"
    local data="${3:-}"

    if [ -n "$data" ]; then
        curl -s -X "$method" \
            -H "Content-Type: application/json" \
            "${CALCOM_BASE_URL:-https://api.cal.com}/v1${endpoint}?apiKey=$CALCOM_API_KEY" \
            -d "$data"
    else
        curl -s -X "$method" \
            "${CALCOM_BASE_URL:-https://api.cal.com}/v1${endpoint}?apiKey=$CALCOM_API_KEY"
    fi
}

Output Rules

• Target ≤50 lines per script output
• Use jq to extract only needed fields
• Never dump full API responses

Phase 1: Discovery

#!/bin/bash
echo "=== Current User ==="
calcom_api GET "/me" | jq '{id: .user.id, name: .user.name, email: .user.email, timeZone: .user.timeZone}'

echo ""
echo "=== Event Types ==="
calcom_api GET "/event-types" \
    | jq -r '.event_types[] | "\(.id)\t\(.title[0:30])\t\(.length)min\t\(.slug)\t\(.hidden)"' \
    | column -t | head -15

echo ""
echo "=== Upcoming Bookings ==="
calcom_api GET "/bookings?status=upcoming" \
    | jq -r '.bookings[] | "\(.id)\t\(.title[0:30])\t\(.startTime[0:16])\t\(.status)\t\(.attendees[0].email // "?")"' \
    | column -t | head -15

echo ""
echo "=== Schedules (Availability) ==="
calcom_api GET "/schedules" \
    | jq -r '.schedules[] | "\(.id)\t\(.name)\t\(.timeZone)"' | head -10

Phase 2: Analysis

Booking Analytics

#!/bin/bash
echo "=== Booking Summary ==="
BOOKINGS=$(calcom_api GET "/bookings")
echo "$BOOKINGS" | jq '{
    total: (.bookings | length),
    by_status: (.bookings | group_by(.status) | map({(.[0].status): length}) | add)
}'

echo ""
echo "=== Bookings by Event Type ==="
echo "$BOOKINGS" | jq -r '.bookings[] | .title' | sort | uniq -c | sort -rn | head -10

echo ""
echo "=== Cancelled Bookings ==="
calcom_api GET "/bookings?status=cancelled" \
    | jq -r '.bookings[] | "\(.id)\t\(.title[0:30])\t\(.startTime[0:16])\t\(.cancellationReason[0:40] // "no reason")"' \
    | head -10

echo ""
echo "=== Bookings Per Day (recent) ==="
echo "$BOOKINGS" | jq -r '.bookings[] | .startTime[0:10]' | sort | uniq -c | sort -k2 | tail -7

Availability & Team Health

#!/bin/bash
echo "=== Availability Schedules ==="
calcom_api GET "/schedules" \
    | jq -r '.schedules[] | "\(.name)\t\(.timeZone)\t\(.availability | length) slots"' | head -10

echo ""
echo "=== Teams ==="
calcom_api GET "/teams" \
    | jq -r '.teams[] | "\(.id)\t\(.name)\t\(.members | length) members"' | head -10

echo ""
echo "=== Hidden/Disabled Event Types ==="
calcom_api GET "/event-types" \
    | jq -r '.event_types[] | select(.hidden == true) | "\(.id)\t\(.title[0:30])\t\(.length)min"' | head -10

Output Format

=== Cal.com User: <name> (<email>) ===

--- Event Types ---
Active: <n>  Hidden: <n>

--- Bookings ---
Total: <n>  Upcoming: <n>  Cancelled: <n>
By Type: <event_type>: <n>

--- Availability ---
Schedules: <n>  Timezone: <tz>

Anti-Hallucination Rules

1. NEVER assume resource names — always discover via CLI/API in Phase 1 before referencing in Phase 2.
2. NEVER fabricate metric names or dimensions — verify against the service documentation or --help output.
3. NEVER mix CLI commands between service versions — confirm which version/API you are targeting.
4. ALWAYS use the discovery → verify → analyze chain — every resource referenced must have been discovered first.
5. ALWAYS handle empty results gracefully — an empty response is valid data, not an error to retry.

Counter-Rationalizations

Common Pitfalls

• API key as query param: Cal.com v1 uses ?apiKey= not header-based auth
• Self-hosted: Ensure correct base URL for self-hosted instances
• Booking statuses: upcoming, past, cancelled, recurring
• Rate limits: 100 requests/minute for cloud; varies for self-hosted
• Pagination: Use limit and page parameters; no cursor pagination