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 skills add terrylica/cc-skills --skill booking-configgit clone --depth 1 https://github.com/terrylica/cc-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/terrylica/cc-skills/booking-config)<a href="https://agentmods.dev/skills/terrylica/cc-skills/booking-config"><img src="https://agentmods.dev/badge/skills/terrylica/cc-skills/booking-config/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/terrylica/cc-skills/booking-config"><img src="https://agentmods.dev/badge/skills/terrylica/cc-skills/booking-config.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What 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 5.1 | $0.00026 | $0.01305 |
| Opus 5 | $0.00013 | $0.00652 |
| Sonnet 5 | $0.00005 | $0.00261 |
| Haiku 4.5 | $0.00003 | $0.00130 |
Grade C, and why
booking-config scanned grade C with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
curl -s "https://api.cal.com/v1/webhooks?apiKey=$CALCOM_API_KEY" | python3 -m json.tool Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s "https://api.cal.com/v1/webhooks?apiKey=$CALCOM_API_KEY" | python3 -m json.tool How it starts
The opening of the file, as written. The whole thing — 181 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Booking Configuration
Configure Cal.com event types, schedules, and availability windows via CLI.
Self-Evolving Skill: This skill improves through use. If instructions are wrong, parameters drifted, or a workaround was needed — fix this file immediately, don't defer. Only update for real, reproducible issues.
Mandatory Preflight
Step 1: Check CLI Binary
ls -la "$HOME/.claude/plugins/marketplaces/cc-skills/plugins/calcom-commander/scripts/calcom-cli/calcom" 2>/dev/null || echo "BINARY_NOT_FOUND"
Step 2: Verify Environment
echo "CALCOM_OP_UUID: ${CALCOM_OP_UUID:-NOT_SET}"
echo "CALCOM_API_URL: ${CALCOM_API_URL:-NOT_SET}"
All must be SET. If any are NOT_SET, run the setup command first.
Step 3: Test API Access
CALCOM_CLI="$HOME/.claude/plugins/marketplaces/cc-skills/plugins/calcom-commander/scripts/calcom-cli/calcom"
$CALCOM_CLI event-types list 2>&1 | head -3
Event Type Management
Create Event Type
Use AskUserQuestion to collect required fields:
AskUserQuestion({
questions: [{
question: "What type of booking page do you want to create?",
header: "Event Type",
options: [
{ label: "30-min Meeting", description: "Standard 30-minute meeting slot" },
{ label: "60-min Interview", description: "Full hour interview session" },
{ label: "15-min Quick Call", description: "Brief check-in call" },
{ label: "Custom", description: "Specify custom duration and details" }
],
multiSelect: false
}]
})
CALCOM_CLI="$HOME/.claude/plugins/marketplaces/cc-skills/plugins/calcom-commander/scripts/calcom-cli/calcom"
# Create event type with collected details
$CALCOM_CLI event-types create \
--title "30min Interview" \
--slug "interview-30" \
--length 30 \
--description "Screening interview for VA candidates"
Update Event Type
# Update title
$CALCOM_CLI event-types update <id> --title "Updated Title"
# Update duration
$CALCOM_CLI event-types update <id> --length 45
# Disable event type
$CALCOM_CLI event-types update <id> --hidden true
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 12d ago First seen · 181 lines · 26 tokens per session scan C 09db9a238b0f
booking-config is a skill published in the GitHub repository terrylica/cc-skills (73 stars, last pushed today), licensed MIT. It adds 26 tokens to every session and 1,305 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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