archive-event

archive-event is a skill for Claude Code from PsychQuant/che-ical-mcp. It costs 0 tokens per session (3,120 once invoked), scanned A, original, MIT.

A calendar-archiving workflow that turns a meeting notice, announcement, or message thread into a calendar event. It follows later corrections, records the source in the event notes, and marks values that were estimated rather than stated.

In plain words
What is it for?
Use it when creating calendar events from narrative messages, especially when the source may contain corrections or missing details.
Why use it?
It helps prevent outdated times from being added and stops guesses, such as an estimated end time, from looking like facts later.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: reads .claude/ paths.

Part of the che-ical-mcp plugin — 3 skills, 5 commands, 2 hooks shipped together

Good fit Use it when creating calendar events from narrative messages, especially when the source may contain corrections or missing details.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/psychquant/che-ical-mcp/archive-event
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 PsychQuant/che-ical-mcp --skill archive-event
Clone the repo
git clone --depth 1 https://github.com/PsychQuant/che-ical-mcp

Made for: Claude Code.

Or install che-ical-mcp, the plugin that ships this one along with the rest of its 3 skills, 5 commands, 2 hooks.

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 archive-event

README.md
[![agentmods](https://agentmods.dev/badge/skills/psychquant/che-ical-mcp/archive-event/github.svg)](https://agentmods.dev/skills/psychquant/che-ical-mcp/archive-event)
Your own site
<a href="https://agentmods.dev/skills/psychquant/che-ical-mcp/archive-event"><img src="https://agentmods.dev/badge/skills/psychquant/che-ical-mcp/archive-event/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 archive-event

Your own site · 80×15
<a href="https://agentmods.dev/skills/psychquant/che-ical-mcp/archive-event"><img src="https://agentmods.dev/badge/skills/psychquant/che-ical-mcp/archive-event.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,120 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 warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 213
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 $0.00000 $0.03120
Opus 5.5 $0.00000 $0.01248
Sonnet 5.5 $0.00000 $0.00624
Haiku 4.5 $0.00000 $0.00312

Measured today against content hash 56b732f9cfc0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

archive-event 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 today.

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.

plugin/skills/archive-event/SKILL.md · 249 lines

How it starts

The opening of the file, as written. The whole thing — 249 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Archive an event from a source

Turning "here is the notice" into a calendar entry requires judgements the 29 EventKit tools will never prompt for. Two of those judgements fail silently — the event is created, the calendar looks normal, and the content is wrong:

  • The time was superseded. A notice goes out, then the organizer corrects it. Reading only the first message puts the wrong day in the calendar.
  • An estimated value reads as a stated fact. Notices often omit the end time. An estimate that is not labelled is indistinguishable, later, from something the source actually said.

Failures that raise an error can live in a README — the reader will look it up. Silent failures cannot, because nobody knows to look. That is what this skill is for.

What already exists — do not rebuild it

Mechanism Covers Does not cover
quick-event command parse → list calendars → conflict check → create source derivation, correction tracking, evidence
create_event built-in idempotency same-calendar repeat of (title, start ±30s) the same activity after its start time changed
find_duplicate_events tool duplicates across calendars within one calendar (it skips same-calendar pairs by design)
calendar-management skill tool catalogue and common workflows the judgements below

Conflict checking exists as a tool — this skill still invokes check_conflicts itself before any create (it does not go through quick-event, so it inherits nothing). What it adds are the five judgements that no existing mechanism covers.

Procedure

source ──▶ 1. authoritative time ──▶ 4. which calendar ──▶ 3. compose notes
                                                               │
                              2. update or create  ◀───────────┘
                              (check_conflicts before create)
                                            │
                                            └──▶ 5. same-day deadlines

Read the full file on GitHub · 249 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. today Changed · +2 lines 56b732f9cfc0
  2. 1mo ago First seen · 247 lines · 0 tokens per session scan A 41a6266af3dd

Subscribe to this mod's changes

archive-event is a skill published in the GitHub repository PsychQuant/che-ical-mcp (41 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 3,120 tokens. 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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