Babysitter api-compatibility-analyzer

Analyze API changes for backward compatibility with breaking change detection and consumer impact assessment

install

source · Clone the upstream repo

git clone https://github.com/a5c-ai/babysitter

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/a5c-ai/babysitter "$T" && mkdir -p ~/.claude/skills && cp -r "$T/library/specializations/code-migration-modernization/skills/api-compatibility-analyzer" ~/.claude/skills/a5c-ai-babysitter-api-compatibility-analyzer && rm -rf "$T"

manifest: library/specializations/code-migration-modernization/skills/api-compatibility-analyzer/SKILL.md

API Compatibility Analyzer Skill

Analyzes API changes between versions to detect breaking changes, assess consumer impact, and suggest migration strategies.

Purpose

Enable API versioning management for:

Breaking change detection
Deprecation analysis
Version comparison
Consumer impact assessment
Migration path suggestion

Capabilities

1. Breaking Change Detection

Detect removed endpoints
Identify removed fields
Find type changes
Flag required field additions

2. Deprecation Analysis

Track deprecated endpoints
Monitor deprecation timelines
Identify usage of deprecated APIs
Plan sunset schedules

3. Version Comparison

Compare OpenAPI specs
Generate detailed diffs
Categorize changes
Document migrations

4. Consumer Impact Assessment

Map affected consumers
Estimate migration effort
Identify high-impact changes
Prioritize notifications

5. Migration Path Suggestion

Recommend upgrade steps
Suggest compatibility layers
Propose versioning strategies
Design adapter patterns

6. Compatibility Layer Design

Design facade endpoints
Plan response translation
Handle version negotiation
Implement fallbacks

Tool Integrations

Tool	Purpose	Integration Method
OpenAPI-diff	Spec comparison	CLI
Optic	API change detection	CLI
Akita	Traffic-based detection	API
swagger-diff	Swagger comparison	CLI
Spectral	API linting	CLI

Output Schema

{
  "analysisId": "string",
  "timestamp": "ISO8601",
  "versions": {
    "base": "string",
    "target": "string"
  },
  "changes": {
    "breaking": [
      {
        "type": "string",
        "path": "string",
        "description": "string",
        "migration": "string"
      }
    ],
    "nonBreaking": [],
    "deprecations": []
  },
  "impact": {
    "consumers": [],
    "severity": "string",
    "migrationEffort": "string"
  },
  "recommendations": []
}

Integration with Migration Processes

api-modernization: Compatibility verification
framework-upgrade: API impact analysis

Related Skills

```
api-inventory-scanner
```
: Endpoint discovery
```
openapi-generator
```
: Spec generation

Related Agents

```
api-modernization-architect
```
: Versioning strategy