Interact with the sigil CLI tool for collecting and analyzing AI usage data from Claude Code and OpenAI Codex CLI. Use this skill when the user asks about their AI usage patterns, wants to push new session data, wants to generate usage reports, or references their "AI stack" or "AI usage". Also trigger when the user asks about token consumption, session history, tool usage patterns across their AI tools, or wants to update their living essay / AI log on their blog. This skill requires the `sigil` CLI to be installed and available on PATH.
2026-03-20