On Windows, an npm-installed `claude` resolves to a .cmd shim, so
_resolve_launch_command wraps it in `cmd.exe /d /s /c ...`. cmd.exe treats a
newline inside an argument as end-of-command, silently truncating a multiline
prompt at the first line break -- the agent received only the "## Task Brief"
heading and replied that no task was included.
Detect this case in _interactive_prompt_transport and deliver the prompt over
the existing stdin channel instead. The guard requires all three of: nt
platform, a newline in the prompt, and a command that resolves to .cmd/.bat.
It reuses _resolve_windows_command_shim so the check matches the same
resolution logic that decides whether cmd.exe wrapping happens.
Also records prompt_transport_reason in the stdin metadata to distinguish this
trigger from the pre-existing oversized-prompt path.
Verified against the real claude CLI: transport flips to stdin and the CLI
confirms all prompt lines arrive intact.
Cursor-agent puts prompts on argv, so oversized company/report handoffs hit
OS ARG_MAX, crash the card as FAILED, and reconcile kept minting new Report
attempts forever. Spill large Cursor prompts to a workspace file and hold the
report chain after consecutive failures.
Suite went from 27 failures plus one permanent hang (never finished) to
1846 passed / 0 failed in ~85s, including under FORCE_COLOR.
- office_shutdown_lifecycle: construct WSHandler via the real __init__
(helper) instead of hand-copied __new__ stubs that drift from the
constructor (#11 added _runtime_status_sync_task and the stubs hung);
the formerly-hanging wait now has a 5s wait_for.
- import-time patch hygiene: company_recruiter / company_reorg /
engine_session_defaults replaced module-level permanent
tempfile.TemporaryDirectory monkeypatching with paired
setUpModule/tearDownModule, fixing order-dependent sqlite failures in
transcript_pagination during full runs.
- stale tests updated to current product semantics: resume stubs use
status="done" (failed is deliberately non-resumable), fix4 asserts the
native review contract through build_company_work_item_contract,
delivery fixture carries user_visible/feedback_scope=final, ownership
doc names progress_log, session compression calls
maybe_compact_session(force=True) explicitly, hard delete removes the
work item row, parallel-isolation asserts delegate rebind and stubs
_get_project_delegate, role update goes through OrgService on an
editable custom org (plus read-only rejection case), collab_rpc patches
the single os.name decision point instead of poisoning pathlib, codex
no-pty builds inside the patch, identity-guard false positives reworded.
- cli_board actions rewritten against the real OfficeServiceFactory seam
with a tempdir OPC_HOME (old direct-engine stubs were never consulted
and the tests wrote into the real OPC home).
- cli_app assertions strip ANSI via _plain_output so a color-forcing
shell (FORCE_COLOR) cannot break plain-text expectations.
- deleted never-runnable test_org_concurrency (pytest.mark.asyncio
without the plugin, stdlib-only assertions) and three dead skipped
filesystem-handoff tests.
- pyproject: dev extra (pytest, pytest-timeout) and a 300s per-test
timeout backstop so a wedged test fails instead of stalling the suite.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
CatJuly