---
myst:
  html_meta:
    description: >-
      Inspect a selected Melder world: isolate frames, attach a Rift, navigate visible
      conduits and spells, and diagnose missing information.
---

# Inspect an explicitly selected world

Prerequisites: [world boundaries](worlds.md), [Nexus setup](nexus.md), and
[viewer navigation](viewers.md).

Follow the complete linked examples in this order:

1. Build two isolated cache worlds, each binding its own cache class at one
   address. Compare the instances and verify each world's reuse.
2. Open a static Rift and inspect its initial state. No assigned frames is a valid
   starting state, not an instruction to substitute the default frame.
3. Use the target-attachment example to opt a frame into observation and attach
   the Rift explicitly. That example lives in the Expert collection; its source
   placement stays unchanged.
4. Enumerate the visible frames, choose one, and descend from conduit to spell.
   Ask for missing-section information before treating an omitted field as absent.

Keep the frame's eligibility, the Rift's assignment, and the selected view separate
while diagnosing visibility. Each answers a different question about the same read.


## Runnable examples

- [Frames as worlds](../examples/advanced/02-frames-as-worlds.md) — Advanced 02
- [Opening a rift](../examples/advanced/09-opening-a-rift.md) — Advanced 09
- [Pointing a rift at your own frame](../examples/expert/11-pointing-a-rift-at-your-own-frame.md) — Expert 11
- [The frame viewer facade](../examples/advanced/13-the-frame-viewer-facade.md) — Advanced 13
- [What you cannot see](../examples/advanced/15-what-you-cannot-see.md) — Advanced 15

[All advanced examples](../examples/advanced/index.md) · [Level contents](index.md) · [Full contents](../contents.md)

[Canonical page source](https://github.com/Synaptic724/melder/blob/0895ce795453cd87e35d70665957b4e89aad3317/docs/advanced/inspection-walkthrough.md)