Cloudflare Workers MCP server: api-schema-drift-detector
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Analyzes breaking changes between two schema versions. Detects: field removal, type changes, newly required fields, enum value removal, constraint tightening.
New (candidate) schema version
Previous (deployed) schema version
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Analyzes breaking changes between two schema versions. Detects: field removal, type changes, newly required fields, enum value removal, constraint tightening.
| Argument | Type | Description |
|---|---|---|
| newSchema |
| object |
| New (candidate) schema version |
| oldSchema* | object | Previous (deployed) schema version |
{
"type": "object",
"required": [
"oldSchema",
"newSchema"
],
"properties": {
"newSchema": {
"type": "object",
"description": "New (candidate) schema version"
},
"oldSchema": {
"type": "object",
"description": "Previous (deployed) schema version"
}
}
}Detects differences between an actual API response and an expected JSON schema. Reports missing_required (error), type_mismatch (error), enum_violation (error), missing_optional (warning), unexpected_field (info). Recurses into nested objects.
| Argument | Type | Description |
|---|---|---|
| schema* | object | Expected JSON schema |
| response* | object | Actual API response to check against schema |
{
"type": "object",
"required": [
"schema",
"response"
],
"properties": {
"schema": {
"type": "object",
"description": "Expected JSON schema"
},
"response": {
"type": "object",
"description": "Actual API response to check against schema"
}
}
}Validates if data conforms to a JSON schema. Returns valid:true/false and an error message on failure.
| Argument | Type | Description |
|---|---|---|
| data* | any | Data to validate (any type) |
| schema* | object | JSON schema to validate against |
{
"type": "object",
"required": [
"schema",
"data"
],
"properties": {
"data": {
"description": "Data to validate (any type)"
},
"schema": {
"type": "object",
"description": "JSON schema to validate against"
}
}
}