Skills

Temporal

Resolve ANY named time window, today, yesterday, thisWeek, lastWeek, last7Days...

Install

npx skills add HarnessMD/munder-difflin --skill temporal -g -a claude-code -y
Category
Engineering
Updated
3d ago
License
MIT
Context cost
Lightabout 612 tokens
Runs scripts
Yes, review before use

What it does

Resolve ANY named time window, today, yesterday, thisWeek, lastWeek, last7Days, last30Days, last90Days, thisMonth, lastMonth, thisQuarter, lastQuarter, thisYear, lastYear, last12Months, or an arbitrary range (lastNdays / lastNweeks / lastNmonths) to a concrete ISO date range relative to your run time. Read-only: no writes, no network. Use whenever a task is time-scoped and you need exact start/end dates without computing them by hand.

/temporal, concrete date ranges, relative to now

This is the single source of truth for "what dates does <window> mean right now?". It resolves named windows to concrete ISO date ranges relative to your run time (new Date() at the moment you invoke it), so you never re-derive dates manually. It only reads the clock and prints, no files written, no network.

Run it

# all windows at once (a quick temporal-context dump)
node "$AGENT_DIR/.claude/skills/temporal/when.mjs"

# one or several specific windows
node "$AGENT_DIR/.claude/skills/temporal/when.mjs" last30Days thisQuarter

# JSON only (machine-readable), or list the supported keywords
node "$AGENT_DIR/.claude/skills/temporal/when.mjs" --json last7Days
node "$AGENT_DIR/.claude/skills/temporal/when.mjs" --list

If $AGENT_DIR is somehow unset, the script also lives under ~/.claude/skills/temporal/when.mjs.

Windows

KeywordMeaning
today / yesterdaythe single civil day
thisWeek / lastWeekISO week (Mon-start); this = Mon→today, last = the full prior Mon→Sun
last7Days / last30Days / last90Daysrolling N-day window ending today (inclusive)
thisMonth / lastMonththis = 1st→today; last = the full prior calendar month
thisQuarter / lastQuarterthis = quarter-start→today; last = the full prior quarter
thisYear / lastYearthis = Jan 1→today (YTD); last = the full prior year
last12Monthsrolling 12 months ending today
lastNdays / lastNweeks / lastNmonthsarbitrary rolling window, e.g. last45days, last2weeks, last6months

Aliases: ytd, qtd, mtd, wtd, 7d, 30d, 90d, 12m.

Convention: this* windows are period-start → today (to-date); last* named periods are the full prior complete period.

Output

Each window prints a human line plus a JSON record:

Read the whole SKILL.md on GitHub

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