FROM ubuntu:24.04

RUN apt-get update && \
    apt-get install -y --no-install-recommends \
        g++ python3 python3-pip curl ca-certificates ripgrep && \
    pip3 install --break-system-packages requests && \
    rm -rf /var/lib/apt/lists/*

# The agent CLI (claude | codex) is installed at trial time by the harness,
# pinned to the `version` in the experiment's agent spec — so only the selected
# CLI lands in the container, and nothing here bakes a CLI build. Node 22 is a
# runtime prerequisite for codex (installed via npm at trial time), not a CLI.
ENV NVM_DIR="/root/.nvm"
RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.2/install.sh | bash && \
    . "$NVM_DIR/nvm.sh" && \
    nvm install 22 && nvm alias default 22 && \
    ln -sf "$(which node)" /usr/local/bin/node && \
    ln -sf "$(which npm)" /usr/local/bin/npm

ENV CLAUDE_CODE_MAX_OUTPUT_TOKENS=128000

WORKDIR /app