text, json, rpc, daemon, acp modes. Key flags: --provider, --model, --api-key, --thinking (levels: off/minimal/low/medium/high/xhigh/max), --autonomous, --resume, --fork, --extension, --skill, --theme, --no-tools, --no-extensions, --goal, --goal-token-budget, --list-models (deprecated; use model list). REMOVED_BUILTIN_TOOL_NAMES (read, write, grep, find, ls) no longer exist as built-ins.
Related: Coding agent index