# Phase 1.0BQ: inline invocation failure

Status: `BP_CONSUMED_BEFORE_PYTHON_ENTRYPOINT_SOURCE_ALLOWED`

Date: 2026-07-29

The single BP invocation exited in Bash parsing with an unexpected-token error
around the inline Python `join` expression. Python did not start, the runner was
not imported and all ten materializer requests remained uncalled. The exact
stage, build and archive paths are still absent. BP is consumed; it is not
retried.

BQ permits only a tiny exact Python entrypoint source that imports `run_once`,
calls it once and prints its completed operation list. The source must contain
no arguments, shell, subprocess, filesystem, network, RetroArch or device
logic. No invocation or build is authorized by this phase.