Claude Code v2.1.260 adds fullscreen diff panel, /advisor text form, and headless /reload-plugins
cliClaude Code 2.1.260 introduces a live `/diff` panel beside the conversation in fullscreen showing uncommitted edits as Claude works, a text-form `/advisor` command usable from the Agent SDK and Remote Control, `/reload-plugins` in headless/SDK sessions, prompt-cache miss diagnostics in `/cost`, plus many fixes to permission rules, subagent messaging, rewind, MCP server startup, and Fable 5.1 model routing.
An agent can now watch its own uncommitted edits live via a `/diff` side panel, hot-reload plugins in headless SDK sessions, toggle `/advisor` from Remote Control/SDK, and see why prompt-cache misses happened via `/cost` diagnostics.
Point release: main net-new capabilities are the fullscreen `/diff` side panel, headless `/reload-plugins` and text-form `/advisor` (both reach Agent SDK), and prompt-cache miss diagnostics; rest is bug fixes and permission hardening.
npm i -g @anthropic-ai/claude-code@2.1.260npm i -g @anthropic-ai/claude-code@2.1.260
# Launch, enter fullscreen, and open the live diff panel
claude
# then inside the TUI:
# /diff # toggle the uncommitted-changes panel
# /cost # now shows likely cause of prompt-cache misses
# /reload-plugins
# /advisor sonnet
# Headless / SDK session with the new commands available:
claude -p "refactor auth module" --output-format stream-json