> ## Documentation Index > Fetch the complete documentation index at: https://docs.charlielabs.ai/llms.txt > Use this file to discover all available pages before exploring further. # How It Works > Charlie’s runtime model, execution flow, and operating boundaries. To learn more about how daemons work, please read [How Daemons Work](https://charlielabs.ai/how-it-works). To learn more about how Charlie works generally, please read about [CAOS, the Coding Agent Operating System](https://charlielabs.ai/blog/charlie-v2-introducing-the-coding-agent-operating-system-caos/). ## Multi-surface wake model Charlie can start work from routed events on the systems your team already uses: * GitHub events such as mentions, review requests, assignments, and PR activity * Linear events such as issue creation, issue comments of any kind on mapped issues, issue mentions, and issues assigned to Charlie * Slack events such as mentions, thread replies, channel messages, and DMs * daemon `schedule` entries for cron-based wakes For daemon `watch` conditions, GitHub events route through the repo-scoped GitHub App installation. Linear events require a connected Linear workspace and the event issue's Linear team mapped to the repo where the daemon lives. Slack events require a connected Slack workspace mapped to that repo. Use [Daemons](/daemons) for wake model details and [Integrations](/integrations) for setup. Charlie run lifecycle visual overview