diff --git a/.devcontainer/backend/Dockerfile b/.devcontainer/backend/Dockerfile
index f9fa2902d..e36da6855 100644
--- a/.devcontainer/backend/Dockerfile
+++ b/.devcontainer/backend/Dockerfile
@@ -106,6 +106,12 @@ RUN git clone https://github.com/LazyVim/starter /home/${USER}/.config/nvim \
 RUN curl -fsSL https://claude.ai/install.sh | bash
 ENV PATH="/home/vscode/.local/bin:${PATH}"
 
+# Install herdr (terminal workspace manager for AI coding agents). Same pattern
+# as Claude Code above: the installer drops a self-contained static binary into
+# ~/.local/bin, which is now on PATH. Lets you run herdr from inside the
+# container. `herdr update` self-updates from herdr.dev thereafter.
+RUN curl -fsSL https://herdr.dev/install.sh | sh
+
 # Playwright chromium browser for the hyde Elmhurst automation. Run as the
 # vscode user so the download lands in /home/vscode/.cache/ms-playwright (the
 # OS deps were installed as root above). Headed chromium is required — the