Emacs Client for Claude Code

ecc runs claude headless, communicates over pipes using its stream-json protocol, and renders the conversation directly in ordinary Emacs buffers. The transcript is read-only text, so isearch, occur, and M-w work just as they do anywhere in Emacs. Permission requests, diffs, and plans can be answered with a single keystroke, either from the transcript or from whatever file you are editing.

Answer from any buffer

Pending permission requests appear in every mode line, and C-c c a lets you allow them without switching buffers. Global keybindings

Review the change, not the claim

Review all session changes in a unified diff, add comments hunk by hunk, and send them back as a single prompt. Review and plan mode

Send editor context

@region, @cursor, and @diagnostics are expanded before the prompt is sent, and answers can appear in an overlay directly above your code. Prompt and transcript

Manage multiple sessions

Track multiple concurrent tasks with a unified dashboard, per-session tabs, and clear indicators for sessions awaiting your response. Session management

Hand off to the terminal

ecc-tui-open hands off the conversation to the CLI’s native interface, and ecc-tui-return brings it back. Transient menu

Safe by default

Permission prompts default to deny, the loopback MCP server is disabled by default, and evaluating Elisp requires explicit opt-in. Configuration

Emacs 29.1+ and the claude CLI are the only requirements; no external packages are needed. Start with the overview, then check the installation guide.