cron-expression-builder
Build and validate cron expressions from natural language. Convert between human-readable schedules and cron syntax with next run preview.
date-normalizer
Use when asked to parse, normalize, standardize, or convert dates from various formats to consistent ISO 8601 or custom formats.
working-with-intervals
Work with Interval datasets (time-bounded data) using OPAL. Use when analyzing data with start and end timestamps like distributed traces, batch jobs, or CI/CD pipeline runs. Covers duration calculations, temporal filtering, and aggregating by time properties. Intervals are immutable completed activities with two timestamps, distinct from Events (single timestamp) and Resources (mutable state).
time-series-analysis
Analyze event datasets (logs) and intervals over time using OPAL timechart. Use when you need to visualize trends, track metrics over time, or create time-series charts. Covers timechart for temporal binning, bin duration options (1h, 5m, 1d), options(bins:N) for controlling bin count, and understanding temporal output columns (_c_valid_from, _c_valid_to, _c_bucket). Returns multiple rows per group for time-series visualization. For single summaries, see aggregating-event-datasets skill.
time-helper
This skill should be used when users request current time information, timezone conversions, or any time-related queries. It provides a simple interface to Claude's built-in time-tools functionality for accurate time information and timezone conversions.
python-deprecation-fixer
Automatically detect and fix Python deprecation warnings in codebases, including datetime.utcnow(), and other common deprecated patterns. Supports extensible pattern matching for future deprecations.
conversation-search
Find and resume Claude Code conversations by searching topics or filtering by date. Returns session IDs and project paths for easy resumption via 'claude --resume'. Use when user asks "find that conversation about X", "what did we discuss", "what did we work on yesterday", "summarize today's work", "show this week's conversations", "recent projects we accomplished", or wants to locate past work by topic, date, or time period (yesterday, today, last week, specific dates).
datetime
Get current date and time in various formats. Use whenever you need the current date, time, timestamps, or formatted datetime values for any purpose (logging, file naming, scheduling, comparisons, etc.)
