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87cc202 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | 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
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