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Dockerfile

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+# Paperless-ngx MCP server image
+#
+# Wraps the freeformz/paperless-ngx-mcp Go binary (stdio transport) with
+# mcp-proxy 0.9.0, which exposes it as a streamable-HTTP MCP endpoint on
+# :3000. This exact version combination was verified end-to-end before
+# being pinned here: initialize + tools/list over POST /mcp/ returned all
+# 116 tools. Newer mcp-proxy releases (0.11/0.12) resolve incompatible
+# `mcp` SDK versions and fail at import time — bump only via the Gitea
+# Actions workflow, which resolves the upstream release version itself.
+ARG PAPERLESS_VERSION=0.3.2
+
+FROM python:3.13-slim
+ARG PAPERLESS_VERSION
+
+RUN pip install --no-cache-dir mcp-proxy==0.9.0
+
+ADD https://github.com/freeformz/paperless-ngx-mcp/releases/download/v${PAPERLESS_VERSION}/paperless-ngx-mcp_${PAPERLESS_VERSION}_linux_amd64.tar.gz /tmp/
+RUN tar -xzf /tmp/paperless-ngx-mcp_${PAPERLESS_VERSION}_linux_amd64.tar.gz -C /usr/local/bin paperless-ngx-mcp \
+    && rm -f /tmp/paperless-ngx-mcp_*.tar.gz \
+    && chmod +x /usr/local/bin/paperless-ngx-mcp
+
+# --pass-environment forwards PAPERLESS_URL / PAPERLESS_TOKEN (deploy-time
+# env from the Infisical-synced secret) into the stdio child process.
+# NOTE: this mcp-proxy version serves the MCP endpoint at /mcp/ (trailing
+# slash) and a /status health endpoint.
+EXPOSE 3000
+CMD ["mcp-proxy", "--host", "0.0.0.0", "--port", "3000", "--pass-environment", "--", "/usr/local/bin/paperless-ngx-mcp", "mcp"]