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Shruti’s Developer Toolkits

Browser utility and offline toolkit · Free public preview

ContractLens

Spot JSON sample-shape drift before a release.

Integration developers reviewing API payload changes · Version 0.1.3 · Original examples

Compare observed shapes

2 MB per input · 30 levels · 25,000 observed nodes · first 300 array items. Sample types only; values, requiredness and full compatibility are not checked.

Review observations, not a compatibility verdict

  1. Paste two approved or synthetic JSON samples. The example changes a total from number to string and removes a field.
  2. Review added, removed and type-changed paths. JSONPath-style labels distinguish object keys from array items.
  3. An empty or truncated new array yields unobserved child paths, not proof that fields were removed.
  4. Download the result; consult the real API contract and consumer tests before deciding whether a change is safe.

Array item types are combined across observed elements. Missing-in-some-elements and required fields are not inferred. No external API is queried.

Keep the complete workflow.

Compare observed field types locally, distinguish empty-array uncertainty, and export a review report. The download adds local snapshot checks and fixtures.

Original download package prepared for review. No subscription or paid API is needed to run it.

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