Why: the make-variable pass-through re-quoted CMD and broke any command
containing quotes (caught by the redaction self-test before it could run).
Evidence: redaction self-test now records 'token <redacted> hello' with quoting
intact (row sha256 aae6a895); negative 'false' case earlier recorded exit=1
row and propagated rc — both in the task card evidence table.
Impact: CMD now travels via environment (CMD="..." make evidence); SRC/TAIL
stay make variables; usage strings updated in Makefile/AGENTS.md/task.sh
template comment.
Refs: task card evidence table; guidelines draft.10 tool-written-evidence rule.