[system] init: model claude-fable-5-1, Claude Code 2.1.312, permission mode dontAsk [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [assistant] I'll write a single self-contained `index.html` with a canvas metaball lava lamp, then sanity-check it with a quick syntax run. [tool Write] { "file_path": "[workspace]/index.html", "content": "\n\n\n\n\nLava Lamp\n\n\n\n\n\n\n\n\n" } [tool result] File created successfully at: [workspace]/index.html (file state is current in your context — no need to Read it back) [system] status [assistant] Now a quick syntax check of the script and a per-frame cost estimate without a browser. [tool Bash] { "command": "node -e '\nconst fs=require(\"fs\");const html=fs.readFileSync(\"index.html\",\"utf8\");\nconst js=html.match(/