google-calendar-free-up-time

google-calendar-free-up-time is a skill for Codex from fanfan-de/anybox. It costs 57 tokens per session (528 once invoked), scanned A, original, MIT.

A guide for finding calendar changes that create a longer uninterrupted block of free time. It examines meetings in a chosen period and distinguishes likely fixed events from movable ones.

In plain words
What is it for?
Use it to clear part of a day, make room for focused work, propose meeting moves, or create a temporary focus-time hold.
Why use it?
It focuses on recovering useful blocks of time instead of merely counting scattered free minutes.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit Use it to clear part of a day, make room for focused work, propose meeting moves, or create a temporary focus-time hold.

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Install with agentmods
npx agentmods add skills/fanfan-de/anybox/google-calendar-free-up-time
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.

Any agent
npx skills add fanfan-de/anybox --skill google-calendar-free-up-time
Clone the repo
git clone --depth 1 https://github.com/fanfan-de/anybox

Made for: Codex.

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.

agentmods badge for google-calendar-free-up-time

README.md
[![agentmods](https://agentmods.dev/badge/skills/fanfan-de/anybox/google-calendar-free-up-time/github.svg)](https://agentmods.dev/skills/fanfan-de/anybox/google-calendar-free-up-time)
Your own site
<a href="https://agentmods.dev/skills/fanfan-de/anybox/google-calendar-free-up-time"><img src="https://agentmods.dev/badge/skills/fanfan-de/anybox/google-calendar-free-up-time/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.

agentmods 80×15 button for google-calendar-free-up-time

Your own site · 80×15
<a href="https://agentmods.dev/skills/fanfan-de/anybox/google-calendar-free-up-time"><img src="https://agentmods.dev/badge/skills/fanfan-de/anybox/google-calendar-free-up-time.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 528 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00057 $0.00528
Opus 5 $0.00028 $0.00264
Sonnet 5 $0.00011 $0.00106
Haiku 4.5 $0.00006 $0.00053

Measured 9d ago against content hash 2408991103e9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

google-calendar-free-up-time 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 9d 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/Anybox-Plugins/google-calendar/skills/google-calendar-free-up-time/SKILL.md · 40 lines

How it starts

The opening of the file, as written. The whole thing — 40 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Google Calendar Free Up Time

Use this skill when the goal is to create time, not just inspect time.

Relevant Actions

  • Use search_events to map the day's current fragmentation and identify movable candidates.
  • Use read_event or read_event_all_fields when one candidate meeting needs a closer look before proposing a move.
  • Use create_event when the user explicitly wants a temporary hold or focus block once the target slot is grounded.
  • Use update_event only after the proposal is clear and set update_scope to this_instance, entire_series, or this_and_following once the correct scope of change is grounded.

Workflow

  1. Start by identifying the target: today, tomorrow, this afternoon, a specific day, or a broader window. If the user already gave a concrete window or duration, work inside it before asking follow-up questions.
  2. Optimize for contiguous free blocks, not raw free-minute totals.
  3. Identify which meetings are likely fixed and which are more movable before proposing changes.
  4. If the user explicitly wants a temporary hold or focus block rather than a reschedule plan, choose the best qualifying free slot and create the hold once the slot is clear.
  5. Look for the smallest edit set that creates a meaningful uninterrupted block.
  6. Prefer solutions that reduce fragmentation across the rest of the day, not just one local gap.
  7. If no clean block exists, show the best partial win and what tradeoff it requires.

Prioritization Heuristics

  • Protect hard anchors such as external meetings, major reviews, commute buffers, or lunch if it is already a stable part of the day.
  • Move lower-cost meetings first, such as optional events, transparent holds, lightweight internal syncs, or self-created placeholders.
  • Favor one or two coherent shifts over a chain of many tiny moves.
  • Prefer creating one useful block over scattering a few small openings.

Output Conventions

  • Show the before-and-after effect of the proposal.
  • Name the block of time created and the minimum meetings that would need to move.
  • When creating a hold, state the exact slot and whether the hold is transparent or busy.
  • If suggesting multiple options, keep them short and explain the tradeoff for each.

Read the full file on GitHub · 40 lines

Files

What ships with it

3 files 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.

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.

  1. 9d ago First seen · 40 lines · 57 tokens per session scan A 2408991103e9

Subscribe to this mod's changes

google-calendar-free-up-time is a skill published in the GitHub repository fanfan-de/anybox (57 stars, last pushed 1mo ago), licensed MIT. It adds 57 tokens to every session and 528 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 2026-09-03.

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