extension for ref resolve, explode, implode, weave, tangle

examples/migration/legacy-explode-source.md

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+---
+title: Legacy Explode Successor
+---
+
+Opening material that used to be easy to lose in section-only exports.
+
+# Overview
+
+The successor explode flow preserves preamble, headings, order, and frontmatter.
+
+## Detail
+
+Nested sections remain addressable and roundtrip through the manifest.
+
+# Follow-Up
+
+Later sections keep their document order.

examples/migration/legacy-literate.md

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+# Legacy Literate Successor
+
+```python {#config}
+CONFIG = {"ready": True}
+```
+
+```python {#main tangle="src/app.py"}
+<<config>>
+
+def main():
+    return CONFIG["ready"]
+```

examples/migration/legacy-path-include.md

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+# Path Include
+
+<!-- mkt:include path="standard/clauses.md" selector="sections[heading~=Warranty]" -->

examples/migration/legacy-transclusion-context.md

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+---
+title: Legacy Transclusion Successor
+namespaces:
+  std: ./standard
+---
+
+# Contract Draft
+
+The old broad transclusion idea is now split into path includes and
+reference-backed processors.
+
+```mkt-include {#payment-clause ref="std:clauses.md#payment"}
+```

examples/migration/standard/clauses.md

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+# Standard Clauses
+
+## Payment {#payment}
+
+Payment is due within 30 days.
+
+## Warranty {#warranty}
+
+Warranty begins on the effective date.