stringout-with-markers

I'd like you to add a skill to Wideframe called "stringout-with-markers".

What it should do:
Lay every clip end-to-end in a set order with category markers, then export the project.

Before you run anything, ask me to confirm:
- Order for the clips (capture time, filename, or bin)?
- Marker scheme: one per clip, per scene, or per segment, and the category labels or colors?
- Include every clip, or only selects above a length or quality bar?
- Any gap between clips?

Then do the work:
1. Enumerate and verify every source clip is readable with media-info-batch.
2. Sort the clips by the confirmed order key.
3. Create one sequence and add the clips contiguously with sequence-clips-add.
4. Add markers per the confirmed scheme with sequence-markers-add.
5. Export the project and reconcile the clip and marker counts.

Do not grade your own work. When the output is ready, hand it to a separate verification subagent that has its own context window. Give it the output, the choices I confirmed, and the pass criteria below. It reviews the quality, writes specific feedback, and returns PASS or FAIL.

Pass criteria:
- The clip count on the timeline equals the count of intended source clips.
- There are no unintended gaps or overlaps between contiguous clips.
- Every marker carries a label from the agreed set, and the marker count matches the scheme.
- The clip order matches the requested key.

If it returns FAIL, apply the feedback, redo the affected work, and verify again with a new subagent. Repeat until it returns PASS, then show me the result.

Once it works, save it as a reusable skill named "stringout-with-markers" so I can run it again by saying /stringout-with-markers.