david@web-1:~$ ls process/

total 8 · one card = one process: what it is, why it is busy, diagnose, fix, safe to kill? · machine-readable: index.json ── Kernel threads & system daemons ──

NAME	KIND	SAFE TO KILL?	WHAT IT IS
kswapd0	kernel-thread	NO	Kernel thread that reclaims memory in the background when a zone's free pages fall below the low watermark; one per NUMA node, kswapd0 is node 0.
systemd-journald	system-daemon	RESTART INSTEAD	The systemd journal daemon: collects kernel, service and syslog messages into binary journal files under /run/log/journal (volatile) or /var/log/journal (persistent), rate-limits chatty services and enforces disk caps.
unattended-upgrades	system-daemon	NO	Ubuntu's automatic security updates: a daily systemd timer refreshes the package lists and runs unattended-upgrade, which installs packages from the allowed origins (the security pockets by default) and can reboot the machine if you let it.

── AI agents ──

NAME	KIND	SAFE TO KILL?	WHAT IT IS
claude	ai-agent	YES	Claude Code command-line agent: reads, edits and runs commands in a project directory with the permissions of the user who started it, filtered by the session's permission mode.
codex	ai-agent	YES	OpenAI's Codex CLI agent: a native binary that edits files and runs commands in your repository under two settings, the sandbox mode that the operating system enforces and the approval policy that decides when it asks you.
gemini	ai-agent	YES	Google's Gemini CLI agent: a Node.js process that reads, edits and runs commands in the current project with your user's permissions, approving tools by its approval mode.
ollama	ai-agent	RESTART INSTEAD	Local LLM server: ollama serve loads models on demand and answers an unauthenticated HTTP API on 127.0.0.1:11434 by default; whoever can reach that port can run models, and read or feed them anything.
openclaw-gateway	ai-agent	RESTART INSTEAD	The OpenClaw Gateway: a Node.js daemon that serves the Control UI, the WebSocket and HTTP API (/v1/, /tools/invoke, /api/channels/) on one port, 18789 by default, and runs the agent's tools, terminal and browser control behind it.