Module json 

json_minify transform (canonical id "json_minify", v1.0.0).

Strips insignificant JSON whitespace (spaces, tabs, \n, \r that fall outside string literals) without ever:

• reordering object keys,
• changing string content or escape sequences, or
• renormalizing number spelling (1.0 must stay 1.0, 1e10 must stay 1e10).

This is deliberately not implemented as parse-then-reserialize through serde_json::Value. Re-serializing a Value would risk exactly the failure modes above: serde_json’s number type does not remember whether 1.0 was spelled with a trailing .0 or an exponent, and losing that spelling would change the byte identity of prompts that providers may cache on. Key order is only preserved through Value if the preserve_order feature is enabled crate-wide, which is a global, easy-to-silently-break invariant; recovering that in a Value layer would be nice, but the two problems above (numbers, and depending on a global feature flag for correctness) are still true.

Instead, this transform:

1. Validates the input by parsing it into a serde_json::Value and immediately discarding it. This enforces valid UTF-8 and valid JSON grammar (rejecting things like unterminated strings) without ever using the parsed value for output.
2. Performs a single lexical pass over the original bytes, tracking whether the cursor is inside a string literal (so whitespace inside strings is never touched) and whether the current byte is escaped (so an escaped quote \" does not prematurely end the string).

Enums

JsonMinifyError

Constants

TRANSFORM_ID

Canonical transform id, as registered with the pipeline.

TRANSFORM_VERSION

Semantic version of this transform’s output behavior.

Functions

minify_json

Strips insignificant JSON whitespace from input, preserving key order, string content/escapes, and number spelling exactly.