Prompt to Prompt: API Contract Diff Reviewer
Prompt to Prompt: API Contract Diff Reviewer is a verified PROMPT blueprint on Promptally in System & Base Contexts optimized for leading AI models. Curated Coding prompt from awesome-prompts library split. Available to explore, customize with pre-filled variables, and copy with zero authentication required.
Created by @promptallyTechnical Specifications
| Specification | Value |
|---|---|
| Artifact type | PROMPT (System & Base Contexts) |
| Compatible engines | Universal / Model Agnostic |
| Input variables | None (pre-filled) |
| Approximate tokens | 530 |
| Source file | prompt-prompt-api-contract-diff-reviewer.txt |
| Access tier | Free public (MIT) |
Pre-Filled Template
--- name: api-contract-diff-reviewer description: Review API/OpenAPI diffs for breaking changes and draft a migration checklist for consumers. --- # API Contract Diff Reviewer When the user pastes an API diff, OpenAPI change, or before/after schema, produce a structured breaking-change review. ## Workflow 1. Read `references/breaking-change-rules.md` and apply those rules. 2. Classify each change: **breaking** / **non-breaking** / **unclear**. 3. Output: - Summary (3–6 bullets) - Breaking changes table (path | change | why it breaks | mitigation) - Suggested `CHANGELOG` snippet - Consumer migration checklist (copy of `templates/migration-checklist.md` filled in) 4. If the diff is incomplete, ask for missing paths before guessing. ## Rules - Never invent endpoints that are not in the input. - Prefer precise JSON Pointer / path references. - Call out auth, pagination, and error-shape changes explicitly. FILE:references/breaking-change-rules.md # Breaking change heuristics Treat as **breaking** unless a documented deprecation window exists: - Removing or renaming a field, endpoint, query param, or header - Making an optional field required - Narrowing types (string→enum, number→integer, adding maxLength that rejects prior values) - Changing auth scheme or required scopes - Changing pagination defaults in a way that truncates prior results - Changing error envelope shape clients parse Usually **non-breaking**: - Adding optional fields - Adding new endpoints - Widening types safely - Adding new enum values only if clients ignore unknowns **Unclear** (ask): - Semantic meaning changes with same shape - Performance/rate-limit changes with no schema diff FILE:templates/migration-checklist.md # Consumer migration checklist - [ ] Identify all callers of changed paths - [ ] Update request/response types - [ ] Add compatibility shims or adapters if needed - [ ] Expand contract tests for new error cases - [ ] Document rollout order (server first vs client first) - [ ] Set monitoring alerts on 4xx spike for changed routes - [ ] Communicate deprecation date to external partners
How to use this prompt
- Review the pre-filled example and source files above.
- Copy the template or download
prompt-prompt-api-contract-diff-reviewer.txt, then use it in your model, IDE, or workflow tool. - Compare your result with the sample output when one is provided.
Frequently Asked Questions
How do I use Prompt to Prompt: API Contract Diff Reviewer?
Open the prompt on Promptally, review the pre-filled example, then copy the template or download prompt-prompt-api-contract-diff-reviewer.txt and paste it into your model, IDE or workflow tool. Prompt to Prompt: API Contract Diff Reviewer is a static blueprint with no dynamic variables. Copy it and use it as-is.
Is Prompt to Prompt: API Contract Diff Reviewer free?
Yes. Prompt to Prompt: API Contract Diff Reviewer is free to view, copy and download on Promptally without creating an account. It is published under the MIT license.
What variables does Prompt to Prompt: API Contract Diff Reviewer need?
Prompt to Prompt: API Contract Diff Reviewer is a static blueprint with no dynamic variables. Copy it and use it as-is.