remember-calendar

remember-calendar is a skill for Claude Code, Codex from markmhendrickson/neotoma. It costs 21 tokens per session (681 once invoked), scanned A, original, MIT.

A tool for importing calendar events and scheduling commitments into persistent memory. It can use a live calendar connection or exported ICS files, the standard format used to transfer calendar events.

In plain words
What is it for?
Use it to import Google Calendar data or ICS exports from Apple Calendar, Outlook, or other calendar systems.
Why use it?
It preserves appointments, commitments, attendees, and recurring schedules for later recall. You can keep this context even when the original calendar is not directly connected.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to import Google Calendar data or ICS exports from Apple Calendar, Outlook, or other calendar systems.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/markmhendrickson/neotoma/remember-calendar
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 markmhendrickson/neotoma --skill remember-calendar
Clone the repo
git clone --depth 1 https://github.com/markmhendrickson/neotoma

Made for: Claude Code, 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 remember-calendar

README.md
[![agentmods](https://agentmods.dev/badge/skills/markmhendrickson/neotoma/remember-calendar.svg)](https://agentmods.dev/skills/markmhendrickson/neotoma/remember-calendar)
Your own site
<a href="https://agentmods.dev/skills/markmhendrickson/neotoma/remember-calendar"><img src="https://agentmods.dev/badge/skills/markmhendrickson/neotoma/remember-calendar.svg" alt="Measured on agentmods" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 681 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 $0.00021 $0.00681
Opus 5 $0.00010 $0.00341
Sonnet 5 $0.00004 $0.00136
Haiku 4.5 $0.00002 $0.00068

Measured 4d ago against content hash 149cb7a6d875, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

remember-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 4d 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.

skills/remember-calendar/SKILL.md · 86 lines

How it starts

The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Remember Calendar

Import calendar events into Neotoma memory — either from a live calendar MCP or from ICS file exports. Extracts scheduling commitments, attendees, and recurring patterns.

When to use

When the user wants to persist calendar events, scheduling commitments, and associated contacts into durable memory.

Prerequisites

Run the ensure-neotoma skill first if Neotoma is not yet installed or configured in your current harness.

Supported sources

Source Format Method
Google Calendar Live API Google Calendar MCP
Apple Calendar ICS export File read
Outlook ICS export File read
Any calendar .ics files File read

Workflow

Phase 0: Verify Neotoma

Confirm Neotoma MCP is connected (call get_session_identity).

Phase 1: Identify source

  1. Check if a calendar MCP is configured (e.g. list_events tool available).
  2. If no MCP, ask the user for an ICS file path.
  3. For MCP: ask for a time range (default: past 30 days + next 30 days).
  4. For ICS: read the file to determine the date range available.

Phase 2: Retrieve and preview

  1. Calendar MCP: use list_events to retrieve events in the specified range.
  2. ICS file: parse the iCalendar format to extract events.
  3. Present a preview: event count, date range, recurring vs one-time, top attendees.
  4. Ask for confirmation.

Phase 3: Extract entities

For each event:

  1. Event: create an event entity with title, start_time, end_time, location, description, recurrence.
  2. Contacts: extract attendees as contact entities (deduplicate against existing contacts).
  3. Tasks: for events with action-oriented titles or descriptions, create associated tasks.
  4. Places: extract locations as place entities when they are specific venues.

For MCP sources, hydrate via the detail endpoint (get_event) before persisting, and set data_source per event with the event ID.

Phase 4: Store with provenance

Read the full file on GitHub · 86 lines

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. 4d ago First seen · 86 lines · 21 tokens per session scan A 149cb7a6d875

Subscribe to this mod's changes

remember-calendar is a skill published in the GitHub repository markmhendrickson/neotoma (31 stars, last pushed today), licensed MIT. It adds 21 tokens to every session and 681 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 2026-09-03.

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