get-dates

name	get-dates
description	Resolve target date from argument and return all date formats needed for planning rituals.
disable-model-invocation	true
allowed-tools	Bash

Get Dates

This sub-skill resolves a target date from user arguments and returns all date-related fields needed by planning rituals.

Input

The $ARGUMENTS variable contains the raw date argument:

• (empty) → today
• today → today
• tomorrow → tomorrow
• monday, tuesday, etc. → next occurrence (including today if matches)
• next monday, next tuesday, etc. → next occurrence after today
• YYYY-MM-DD → specific date

Instructions

1. Parse $ARGUMENTS to determine the target date

2. Use macOS date commands to resolve relative dates:

   # For "tomorrow"
   date -v+1d +"%Y-%m-%d"
   
   # For next weekday (e.g., "monday")
   # Calculate days until next occurrence
   

3. Calculate all date fields for the resolved target date:

   # Day of week
   date -j -f "%Y-%m-%d" "$TARGET_DATE" +"%A"
   
   # ISO week number
   date -j -f "%Y-%m-%d" "$TARGET_DATE" +"%Y-W%V"
   
   # Month
   date -j -f "%Y-%m-%d" "$TARGET_DATE" +"%Y-%m"
   
   # Quarter
   # Q1: Jan-Mar, Q2: Apr-Jun, Q3: Jul-Sep, Q4: Oct-Dec
   

4. Determine relationship to today:

   • is_today: target date equals current date
   • is_future: target date is after current date
   • is_past: target date is before current date

Output

Return structured JSON:

{
  "target_date": "2026-02-15",
  "day_name": "Sunday",
  "day_short": "Sun",
  "week": "2026-W07",
  "month": "2026-02",
  "month_name": "February",
  "quarter": "2026-Q1",
  "year": "2026",
  "is_today": false,
  "is_future": true,
  "is_past": false,
  "days_from_today": 1
}

Error Cases

• Invalid date format: Return error with valid format examples
• Past date: Allow but set is_past: true for caller to handle

Example Resolutions

Input	Target Date	Notes
(empty)	2026-02-14	Today
today	2026-02-14	Today
tomorrow	2026-02-15	+1 day
monday	2026-02-16	Next Monday (including today if Monday)
next monday	2026-02-16	Next Monday (always future)
2026-02-20	2026-02-20	Specific date

---

Week Resolution (for weekly rituals)

When scope=week is passed in arguments or the input contains an ISO week format:

Week Input Formats

• (empty) → current week
• last week → previous week
• YYYY-Www → specific ISO week (e.g., 2026-W07)

Week Calculations

# Get current ISO week
date +"%G-W%V"

# Get week start (Monday) from ISO week
# Use: date command with week calculation

# Get week end (Sunday) from ISO week
# week_end = week_start + 6 days

Extended Output for Weekly Scope

When resolving weeks, include these additional fields:

{
  "target_date": "2026-02-14",
  "day_name": "Saturday",
  "day_short": "Sat",
  "week": "2026-W07",
  "week_start": "2026-02-09",
  "week_end": "2026-02-15",
  "is_current_week": true,
  "is_past_week": false,
  "month": "2026-02",
  "month_name": "February",
  "quarter": "2026-Q1",
  "year": "2026",
  "is_today": false,
  "is_future": true,
  "is_past": false,
  "days_from_today": 1
}

Week Resolution Examples

Input	Target Week	Week Start	Week End
(empty) scope=week	2026-W07	2026-02-09	2026-02-15
last week	2026-W06	2026-02-02	2026-02-08
2026-W05	2026-W05	2026-01-26	2026-02-01

Week Resolution Logic

1. If input matches YYYY-Www pattern → use directly
2. If input is last week → current week minus 1
3. If scope=week with empty input → current week
4. Calculate week_start as the Monday of that week
5. Calculate week_end as the Sunday of that week