🤖 refactor: rename cmux to mux

.github/actions/setup-cmux/action.yml → .github/actions/setup-mux/action.yml

@@ -1,4 +1,4 @@
-name: "Setup Cmux"
+name: "Setup Mux"
 description: "Setup Bun and install dependencies with caching"
 inputs:
   install-imagemagick:

.github/workflows/build.yml

@@ -16,7 +16,7 @@ jobs:
         with:
           fetch-depth: 0 # Required for git describe to find tags
 
-      - uses: ./.github/actions/setup-cmux
+      - uses: ./.github/actions/setup-mux
         with:
           install-imagemagick: true
 
@@ -72,7 +72,7 @@ jobs:
         with:
           fetch-depth: 0 # Required for git describe to find tags
 
-      - uses: ./.github/actions/setup-cmux
+      - uses: ./.github/actions/setup-mux
         with:
           install-imagemagick: true
 
@@ -99,14 +99,14 @@ jobs:
         with:
           fetch-depth: 0 # Required for git describe to find tags
 
-      - uses: ./.github/actions/setup-cmux
+      - uses: ./.github/actions/setup-mux
 
       - uses: ./.github/actions/build-vscode-extension
 
       - name: Upload VS Code extension artifact
         uses: actions/upload-artifact@v4
         with:
           name: vscode-extension
-          path: vscode/cmux-*.vsix
+          path: vscode/mux-*.vsix
           retention-days: 30
           if-no-files-found: error

.github/workflows/chromatic.yml

@@ -19,7 +19,7 @@ jobs:
         with:
           fetch-depth: 0 # Required for Chromatic to track changes
 
-      - uses: ./.github/actions/setup-cmux
+      - uses: ./.github/actions/setup-mux
 
       - name: Generate version file
         run: ./scripts/generate-version.sh

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
         with:
           fetch-depth: 0 # Required for git describe to find tags
 
-      - uses: ./.github/actions/setup-cmux
+      - uses: ./.github/actions/setup-mux
 
       - name: Generate version file
         run: ./scripts/generate-version.sh
@@ -76,7 +76,7 @@ jobs:
         with:
           fetch-depth: 0 # Required for git describe to find tags
 
-      - uses: ./.github/actions/setup-cmux
+      - uses: ./.github/actions/setup-mux
 
       - name: Build worker files
         run: make build-main
@@ -101,7 +101,7 @@ jobs:
         with:
           fetch-depth: 0 # Required for git describe to find tags
 
-      - uses: ./.github/actions/setup-cmux
+      - uses: ./.github/actions/setup-mux
 
       - name: Check if Ollama is pre-installed
         id: check-ollama
@@ -157,7 +157,7 @@ jobs:
         with:
           fetch-depth: 0 # Required for git describe to find tags
 
-      - uses: ./.github/actions/setup-cmux
+      - uses: ./.github/actions/setup-mux
 
       - name: Install Playwright browsers
         run: bun x playwright install --with-deps
@@ -183,7 +183,7 @@ jobs:
         with:
           fetch-depth: 0 # Required for git describe to find tags
 
-      - uses: ./.github/actions/setup-cmux
+      - uses: ./.github/actions/setup-mux
 
       - name: Install system dependencies
         run: |

.github/workflows/publish-npm.yml

@@ -22,7 +22,7 @@ jobs:
         with:
           fetch-depth: 0 # Required for git describe to find tags
 
-      - uses: ./.github/actions/setup-cmux
+      - uses: ./.github/actions/setup-mux
         with:
           install-imagemagick: "true"
 

.github/workflows/release.yml

@@ -17,7 +17,7 @@ jobs:
         with:
           fetch-depth: 0 # Required for git describe to find tags
 
-      - uses: ./.github/actions/setup-cmux
+      - uses: ./.github/actions/setup-mux
         with:
           install-imagemagick: true
 
@@ -47,7 +47,7 @@ jobs:
         with:
           fetch-depth: 0 # Required for git describe to find tags
 
-      - uses: ./.github/actions/setup-cmux
+      - uses: ./.github/actions/setup-mux
         with:
           install-imagemagick: true
 
@@ -68,7 +68,7 @@ jobs:
         with:
           fetch-depth: 0 # Required for git describe to find tags
 
-      - uses: ./.github/actions/setup-cmux
+      - uses: ./.github/actions/setup-mux
 
       - uses: ./.github/actions/build-vscode-extension
 
@@ -77,5 +77,5 @@ jobs:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           gh release upload ${{ github.event.release.tag_name }} \
-            vscode/cmux-*.vsix \
+            vscode/mux-*.vsix \
             --clobber

.github/workflows/terminal-bench.yml

@@ -87,7 +87,7 @@ jobs:
         with:
           fetch-depth: 0 # Required for git describe to find tags
 
-      - uses: ./.github/actions/setup-cmux
+      - uses: ./.github/actions/setup-mux
 
       - name: Install uv
         run: curl -LsSf https://astral.sh/uv/install.sh | sh

Makefile

@@ -1,6 +1,6 @@
 # Build System
 # ============
-# This Makefile orchestrates the cmux build process.
+# This Makefile orchestrates the mux build process.
 #
 # Quick Start:
 #   make help          - Show all available targets
@@ -110,7 +110,7 @@ dev-server: node_modules/.installed build-main ## Start server mode with hot rel
 	@bun x concurrently -k \
 		"bun x concurrently \"$(TSGO) -w -p tsconfig.main.json\" \"bun x tsc-alias -w -p tsconfig.main.json\"" \
 		"bun x nodemon --watch dist/main.js --watch dist/main-server.js --delay 500ms --exec 'NODE_ENV=development node dist/main.js server --host $(or $(BACKEND_HOST),localhost) --port $(or $(BACKEND_PORT),3000)'" \
-		"CMUX_VITE_HOST=$(or $(VITE_HOST),127.0.0.1) CMUX_VITE_PORT=$(or $(VITE_PORT),5173) VITE_BACKEND_URL=http://$(or $(BACKEND_HOST),localhost):$(or $(BACKEND_PORT),3000) vite"
+		"MUX_VITE_HOST=$(or $(VITE_HOST),127.0.0.1) MUX_VITE_PORT=$(or $(VITE_PORT),5173) VITE_BACKEND_URL=http://$(or $(BACKEND_HOST),localhost):$(or $(BACKEND_PORT),3000) vite"
 
 
 
@@ -225,7 +225,7 @@ test-coverage: ## Run tests with coverage
 
 test-e2e: ## Run end-to-end tests
 	@$(MAKE) build
-	@CMUX_E2E_LOAD_DIST=1 CMUX_E2E_SKIP_BUILD=1 PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD=1 bun x playwright test --project=electron $(PLAYWRIGHT_ARGS)
+	@MUX_E2E_LOAD_DIST=1 MUX_E2E_SKIP_BUILD=1 PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD=1 bun x playwright test --project=electron $(PLAYWRIGHT_ARGS)
 
 ## Distribution
 dist: build ## Build distributable packages
@@ -308,7 +308,7 @@ chromatic: node_modules/.installed ## Run Chromatic for visual regression testin
 	@bun x chromatic --exit-zero-on-changes
 
 ## Benchmarks
-benchmark-terminal: ## Run Terminal-Bench with the cmux agent (use TB_DATASET/TB_SAMPLE_SIZE/TB_TIMEOUT/TB_ARGS to customize)
+benchmark-terminal: ## Run Terminal-Bench with the mux agent (use TB_DATASET/TB_SAMPLE_SIZE/TB_TIMEOUT/TB_ARGS to customize)
 	@TB_DATASET=$${TB_DATASET:-terminal-bench-core==0.1.1}; \
 	TB_TIMEOUT=$${TB_TIMEOUT:-1800}; \
 	CONCURRENCY_FLAG=$${TB_CONCURRENCY:+--n-concurrent $$TB_CONCURRENCY}; \
@@ -333,10 +333,10 @@ benchmark-terminal: ## Run Terminal-Bench with the cmux agent (use TB_DATASET/TB
 	fi; \
 	echo "Using timeout: $$TB_TIMEOUT seconds"; \
 	echo "Running Terminal-Bench with dataset $$TB_DATASET"; \
-	export CMUX_TIMEOUT_MS=$$((TB_TIMEOUT * 1000)); \
+	export MUX_TIMEOUT_MS=$$((TB_TIMEOUT * 1000)); \
 	uvx terminal-bench run \
 		--dataset "$$TB_DATASET" \
-		--agent-import-path benchmarks.terminal_bench.cmux_agent:CmuxAgent \
+		--agent-import-path benchmarks.terminal_bench.mux_agent:CmuxAgent \
 		--global-agent-timeout-sec $$TB_TIMEOUT \
 		$$CONCURRENCY_FLAG \
 		$$LIVESTREAM_FLAG \

README.md

@@ -1,8 +1,8 @@
 <div align="center">
 
-<img src="docs/img/logo.webp" alt="cmux logo" width="15%" />
+<img src="docs/img/logo.webp" alt="mux logo" width="15%" />
 
-# cmux - coding agent multiplexer
+# mux - coding agent multiplexer
 
 [![CI](https://github.com/coder/cmux/actions/workflows/ci.yml/badge.svg)](https://github.com/coder/cmux/actions/workflows/ci.yml)
 [![Build](https://github.com/coder/cmux/actions/workflows/build.yml/badge.svg?event=merge_group)](https://github.com/coder/cmux/actions/workflows/build.yml?query=event:merge_group)
@@ -11,7 +11,7 @@
 
 </div>
 
-![cmux product screenshot](docs/img/product-hero.webp)
+![mux product screenshot](docs/img/product-hero.webp)
 
 A desktop application for parallel agentic development.
 
@@ -27,7 +27,7 @@ Here are some specific use cases we enable:
   - The stream will automatically resume after restarts or intermittent connection issues. If the model completes early we will show an indicator.
 - **A/B testing**: run multiple workspaces in parallel on the same problem but different approaches,
   abandon the bad ones.
-- **Tangent exploration**: launch tangents in `cmux` away from main work
+- **Tangent exploration**: launch tangents in `mux` away from main work
 
 </details>
 
@@ -39,11 +39,11 @@ Here are some specific use cases we enable:
 - **Multi-model** (`sonnet-4-*`, `gpt-5-*`, `opus-4-*`)
   - Ollama supported for local LLMs ([docs](https://cmux.io/models.html#ollama-local))
   - OpenRouter supported for long-tail of LLMs ([docs](https://cmux.io/models.html#openrouter-cloud))
-- **VS Code Extension**: Jump into cmux workspaces directly from VS Code ([docs](https://cmux.io/vscode-extension.html))
+- **VS Code Extension**: Jump into mux workspaces directly from VS Code ([docs](https://cmux.io/vscode-extension.html))
 - Supporting UI and keybinds for efficiently managing a suite of agents
 - Rich markdown outputs (mermaid diagrams, LaTeX, etc.)
 
-cmux has a custom agent loop but much of the core UX is inspired by Claude Code. You'll find familiar features like Plan/Exec mode, vim inputs, `/compact` and new ones
+mux has a custom agent loop but much of the core UX is inspired by Claude Code. You'll find familiar features like Plan/Exec mode, vim inputs, `/compact` and new ones
 like [opportunistic compaction](https://cmux.io/context-management.html) and [mode prompts](https://cmux.io/instruction-files.html#mode-prompts).
 
 **[Read the full documentation →](https://cmux.io)**