ext-json-rs

ext-json-rs provides JSON helpers:

• canonicalization (stable key ordering + formatting)
• JSON → DataModel decoding

See also:

• Guide: Data interoperability
• Guide: JSON reporting
• Runnable reference: docs/examples/agent-gate/json-report/

Canonical JSON (module: ext.json.canon)

• ext.json.canon.canonicalize(input: bytes_view) -> bytes

This produces a canonical JSON encoding suitable for stable hashing, comparisons, or as an input to std.json.pretty_encode.

JSON → DataModel (module: ext.json.data_model)

• ext.json.data_model.parse(input: bytes_view) -> bytes

This returns a result doc; for OK, the payload bytes are a DataModel value encoding.

To emit JSON from a DataModel doc, use ext.data_model.json.emit_canon (from ext-data-model).