Discovery is the phase every work type begins at, and it had no coverage
at all. This walks it from workflow-start on an empty project — no work
units, no inbox, not even a project manifest, since none exists until the
first work unit is created — through the opener, the shape-and-confirm
gate and name resolution, stopping the moment the work unit is on disk.

That stop is the durability boundary rather than an arbitrary point.
Everything before the work-type commit is ephemeral however long the
shaping ran; everything after it persists. The case asserts exactly that:
nothing is on disk until one engine transaction creates the work unit,
installs the session log staged in the cache, and commits.

Three firsts. It is the first case that creates a work unit instead of
reading one someone else built. It is the first live user of world
`claims` — the manifest description and the session log's prose are the
model's to write, so the world is judged against stated claims rather
than byte-compared. And it is only the second case where
engine_before_write is not vacuous, since the walk stages the session log
under .workflows itself.

The deterministic spine is the ordering: `manifest exists` must run
before `workunit create`, because a collision check after the thing it
checks for is no check at all. Alongside it, calls_exclude on the epic
machinery — no map, no topics, no session close — since single-phase work
must not touch any of it.

The name is supplied by the scripted user rather than accepting the
suggestion, which keeps every path in the expected world fixed instead of
depending on what the model would have derived from the description.

Passed first run: 5/5 path, all four checks, world PASS, no markers.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>