{
  "status": "Source changes complete; validation intentionally not executed.",
  "files_changed": [
    ".worktrees/hertz-304/crates/xtask/src/main.rs"
  ],
  "changes": [
    "help_for now returns Result and rejects unsuccessful exits and empty/whitespace stdout, preserving invocation, exit status, and stderr in diagnostics; launch failures also return contextual errors.",
    "cli_reference and push_command_tree propagate producer errors through the complete recursive command tree.",
    "Replaced the single-caller gen_one helper with returning gen_cli_reference(root, bin, check), which finishes generation before accessing the destination. gen prints returned errors and exits 1, following the existing changelog pattern.",
    "Successful output normalization, rendering, and drift comparison remain unchanged; no minimum page length or shrinkage restriction added.",
    "Added real subprocess fixtures for Windows and Unix within the existing CLI-reference test module; no production spt or generated reference edits."
  ],
  "tests_authored_unexecuted": [
    "cli_reference_tests::failed_root_or_nested_help_retains_reference_and_producer_context",
    "cli_reference_tests::empty_or_whitespace_root_or_nested_help_cannot_generate_or_pass_check",
    "cli_reference_tests::unlaunchable_help_producer_returns_error_without_clobbering_reference",
    "cli_reference_tests::successful_help_tree_can_shrink_reference_and_clear_drift"
  ],
  "requirement_mapping": "Existing REQ-DOCS-5 impl tags immediately above producer rejection and generation seams; existing recursive-rendering tags retained; each new regression test has an immediately preceding unit tag.",
  "verification": "UNEXECUTED: builds, tests, formatters, linters, generation, traceability checks, and other validation, per source-only authorization.",
  "unresolved_contracts": [],
  "exports": "Affected functions remain private; no exported API changes."
}