A read-only calendar view covering the next 30 days. It can read events from Google Calendar or Microsoft 365 and group them by day.

Reviewing upcoming meetings, appointments, times, locations, and busy or empty days over the next month.

It provides a monthly planning view without manually calculating dates or changing calendar events.

next-month — Skill for Claude Code and Codex by ondrasek: A read-only calendar view covering the next 30 days.

Install

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.

agentmods

npx agentmods add skills/ondrasek/cc-plugins/next-month

Any agent

npx skills add ondrasek/cc-plugins --skill next-month

Clone the repo

git clone --depth 1 https://github.com/ondrasek/cc-plugins

Made for: Claude Code, Codex.

Or install calendar-access, the plugin that ships this one along with the rest of its 9 skills.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/ondrasek/cc-plugins/next-month.svg)](https://agentmods.dev/skills/ondrasek/cc-plugins/next-month)

Your own site

<a href="https://agentmods.dev/skills/ondrasek/cc-plugins/next-month"><img src="https://agentmods.dev/badge/skills/ondrasek/cc-plugins/next-month.svg" alt="Measured on agentmods" height="20"></a>

Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 423 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00051	$0.00423
Opus 5	$0.00026	$0.00211
Sonnet 5	$0.00010	$0.00085
Haiku 4.5	$0.00005	$0.00042

Measured 3d ago against content hash 01639085ddb2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

next-month 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 3d 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.

plugins/calendar-access/skills/next-month/SKILL.md · 45 lines

What it actually says

Next Month's Calendar

Shortcut for viewing the next 30 days of events.

Critical Rules

Read cross-cutting behaviors first: skills/shared/references/cross-cutting.md
Read-only — never create, modify, or delete events

Context Files

skills/shared/references/cross-cutting.md — provider detection, output format, error handling
skills/shared/references/providers.md — CLI commands and response parsing

Workflow

1. Calculate Date Range

START=$(date +%Y-%m-%d)
END=$(date -v+30d +%Y-%m-%d 2>/dev/null || date -d '+30 days' +%Y-%m-%d)

2. Detect Providers and Fetch Events

Follow provider detection from cross-cutting.md, then fetch events for the next 30 days using commands from providers.md.

Google: gcalcli agenda "$START" "$END" --tsv --details location --nocolor

Microsoft: Use calendarView with startDateTime=${START}T00:00:00Z and endDateTime=${END}T00:00:00Z

3. Format Output

Use the standard markdown table format from cross-cutting.md. Group events by day — one ## Calendar — Day header per day. Skip days with no events.

For 30-day views, consider summarizing days with many events (e.g., "5 events") and expanding on request.

Changes

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.

3d ago First seen · 45 lines · 51 tokens per session scan A 01639085ddb2

Subscribe to this mod's changes

next-month is a skill published in the GitHub repository ondrasek/cc-plugins (2 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 51 tokens to every session and 423 once invoked, about $0.0003 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 2026-08-31.

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next-month