FA-99744 / Tool call schema validation / Member archive
Required property presence is confused with truthiness · case 04
Required property presence is confused with truthiness.
Case contract
A mapping is valid when every required key exists, even if its value is null, false, zero, or empty.
Why this case matters
Tool argument validation prevents malformed structured payloads from entering a deterministic downstream operation.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| false value present | false | true | Failed |
MEMBER ARCHIVE
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