The Build, Edit and Fix mock call sites passed generate_mock_inputs through
unfiltered, so an endpoint variable got a mocked URL. The engine accepts any
URL at launch; the http-request node then fails on connection, which
is_input_failure reads as a config failure, so the flow fed the config-repair
loop (the ESQ1-302 thrash). without_endpoint_values drops the endpoint keys at
every mock call site: the missing required key now fails the launch as
"<var> is required in input form", which routes back to the test-data gate.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>