CapabilityWire
// event · cli

Claude Code v2.1.260 adds fullscreen diff panel, /advisor text form, and headless /reload-plugins

cli
vendor: Anthropicpublished: 1h agoconfidence: 0.90id: d830ecfb-efc1-4e2a-ab55-d32e75968e23

Claude 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.

capability delta

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.

curator note

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.

// install
npm i -g @anthropic-ai/claude-code@2.1.260
npm · @anthropic-ai/claude-code @ 2.1.260
// example
bash
npm 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
// links
claude-codeclianthropiccoding-agentdiff-panelpluginspermissionsmcp
source: github_release · https://github.com/anthropics/claude-code/releases/tag/v2.1.260