[doubleailes]

Summary

Archives moho-import (53/53 tasks), the change implemented and merged in #415. Its delta specs are synced into two new main specs:

• scene-index-import (5 requirements)
• import-parity (5 requirements)

openspec validate --specs --strict passes.

Capability

usd-scene-import. Specs only, no code.

Image impact

• Bit-identical
• Changed intentionally
• Not applicable (docs)

Checklist

• openspec validate --specs --strict

Follow-up: Moho is moving to strict Hydra parity (no chunk streaming, Hydra's instancing layout). A later Crust change will modify scene-index-import (its streaming requirement) and retire import-parity together with its baselines.

🤖 Generated with Claude Code

https://claude.ai/code/session_01PUSvMHN9Akk66u2oG3rUbF

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PR Summary by Qodo

Archive Moho import and publish its scene-index and parity specs

📝 Documentation 🕐 10-20 Minutes

AI Description

• Archive the completed moho-import change and its 53 checked tasks following the merged
 implementation.
• Publish its delta requirements as the scene-index-import and import-parity main specs.

Diagram

graph TD
  A["Completed change"] --> B["Archived record"] --> C["Delta requirements"] --> D["Scene-index spec"]
  C --> E["Parity spec"]

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High-Level Assessment

Archiving the completed change while syncing its delta requirements into main capability specs follows the OpenSpec lifecycle and preserves the implementation record. No different approach offers a meaningful advantage for this specs-only PR.

Files changed (8) +297 / -0

Documentation (8) +297 / -0

.openspec.yamlPreserve the archived change metadata +0/-0

Preserve the archived change metadata

• Moves the spec-driven change metadata into the dated Moho import archive.

openspec/changes/archive/2026-10-27-moho-import/.openspec.yaml

design.mdPreserve the Moho import design record +0/-0

Preserve the Moho import design record

• Archives the migration decisions, parity strategy, streaming design, and Moho integration history.

openspec/changes/archive/2026-10-27-moho-import/design.md

proposal.mdPreserve the Moho import proposal +0/-0

Preserve the Moho import proposal

• Archives the rationale, scope, capabilities, and anticipated impact of the completed import migration.

openspec/changes/archive/2026-10-27-moho-import/proposal.md

spec.mdPreserve the import-parity delta spec +0/-0

Preserve the import-parity delta spec

• Archives the change's original requirements for baseline recording, equality checks, and migration gates.

openspec/changes/archive/2026-10-27-moho-import/specs/import-parity/spec.md

spec.mdPreserve the scene-index import delta spec +0/-0

Preserve the scene-index import delta spec

• Archives the change's original requirements for the Moho import route, streaming, and time handling.

openspec/changes/archive/2026-10-27-moho-import/specs/scene-index-import/spec.md

tasks.mdArchive the completed migration checklist +0/-0

Archive the completed migration checklist

• Preserves the checked implementation and verification tasks as part of the completed change record.

openspec/changes/archive/2026-10-27-moho-import/tasks.md

spec.mdPublish the import-parity main spec +143/-0

Publish the import-parity main spec

• Establishes five requirements covering direct-importer baselines, exact equality, fixture and large-scene checks, and parity gates. Documents the permitted prototype-path and shutter-offset exceptions.

openspec/specs/import-parity/spec.md

spec.mdPublish the scene-index import main spec +154/-0

Publish the scene-index import main spec

• Establishes five requirements for a single Moho import route across hosts, parity with the former importer, chunk streaming, and index-owned time. Records the defined-prim, inherited-binding, and prototype-reuse behavior changes.

openspec/specs/scene-index-import/spec.md