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jsonparser
ProbeLabs23 findings · 123 requirementsWhen GetUnsafeString is called on JSON containing values with Unicode edge cases (BOM, ZWJ, multi-byte sequences), the parser shall return the raw bytes as a Go string without corruption or panic, even though unescaping is skipped.
Specification
The requirement exactly as authored — its complete prose text and, where present, the formal FRETish sentence it compiles to.
When GetUnsafeString is called on JSON containing values with Unicode edge cases (BOM, ZWJ, multi-byte sequences), the parser shall return the raw bytes as a Go string without corruption or panic, even though unescaping is skipped.
the parser shall always satisfy !getunsafestring_input_has_unicode_edge_cases | getunsafestring_handles_unicode_edges_safely
Rationale & tags
Why this requirement exists, and how it is categorised.
Rationale & tags
Why this requirement exists, and how it is categorised.
GetUnsafeString returns raw bytes as a Go string. Multi-byte sequences at value boundaries must not cause slice-out-of-bounds panics.
Verification & provenance
How this requirement was checked: the review trail, edit history, and the machine-analysis status terms (each ⓘ explains what it means).
Review
- Status
- approved
- Reviewer
- Buger · lead_engineer
- Reviewed
- Aug 20, 2026, 13:11 UTC
History
- Created
- Apr 21, 2026, 00:00 UTC · Claude · AI agent
- Modified
- Aug 20, 2026, 13:11 UTC · Buger
Change history
Every recorded revision of this requirement's source file — newest first, each with its commit message and the diff for that change.
Review history
Human and AI-agent approvals of this requirement — the 'why was this approved' lineage, each with the reviewer's justification and the code it cites.
- Claude:spec Conformance · AI agentApprovedSpec conformanceAug 20, 2026 · last monthREVIEW-85
GetUnsafeString returns the raw value bytes via bytesToString and never invokes Unescape (parser.go:2034-2040), so the unescape-path demo defects (KI-14 solidus, KI-8/KI-15 surrogates) cannot corrupt or crash it. Get scans the enclosing JSON string structurally and is agnostic to interior UTF-8/BOM/ZWJ bytes, so TestGetUnsafeStringUnicodeEdgeCases (obligation_property_test.go:802) confirms no panic across BOM, raw multi-byte, emoji, and ZWJ values. The malformed-shape MCDC Row2 witness returns a clean "Key path not found" error rather than panicking, which the test explicitly accepts. All witness tests pass.
Cited code (3)
Obligations
What this requirement must witness to be considered satisfied — the required evidence, and the tests that discharge each one.
The tests that discharge each obligation need a synced audit
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Formula evidence
The formal formula behind this requirement, the variables it is written over, and the tests that exercise it (each term is explained inline).
Formula evidence
The formal formula behind this requirement, the variables it is written over, and the tests that exercise it (each term is explained inline).
FRETish formula
the parser shall always satisfy !getunsafestring_input_has_unicode_edge_cases | getunsafestring_handles_unicode_edges_safely
Variables
| Name | Type | Direction | Description |
|---|---|---|---|
| getunsafestring_input_has_unicode_edge_cases | — | True when GetUnsafeString addresses a value with Unicode edge cases. | |
| getunsafestring_handles_unicode_edges_safely | — | True when GetUnsafeString returns raw bytes as Go string without corruption for Unicode edge cases. |
Witnesses· 3 scenarios total
- TestMCDC_SYS_REQ_105_Row1_TriggerFalseexercises 1 condition scenario
- TestMCDC_SYS_REQ_105_Row2_InvariantViolationexercises 1 condition scenario
- TestGetUnsafeStringUnicodeEdgeCasesexercises 1 condition scenario
MC/DC truth table· 3 rows
Each row assigns the formula's conditions (T/F) and shows the Result— the formula's value for that input row, not a test pass/fail. A row proves a condition when flipping only that condition flips the outcome. The test that covers each row is linked.
mcdc:ignoreNo-actionfalse-result row satisfied by designUncoveredneeds a covering test| # | getunsafestring_handles_unicode_edges_safely | getunsafestring_input_has_unicode_edge_cases | Result | Proves | Covering test |
|---|---|---|---|---|---|
| 1 | F | F | T | getunsafestring_input_has_unicode_edge_cases | |
| 2 | F | T | F | getunsafestring_handles_unicode_edges_safely | |
| 3 | T | T | T | getunsafestring_handles_unicode_edges_safely |
Its place
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Trace evidence
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No implementation linked
No source files are traced to this requirement yet.
Impact
Blast radius — authored trace links only (automatically derived links come from the audit index and aren't shown here).
Impact
Blast radius — authored trace links only (automatically derived links come from the audit index and aren't shown here).
If you change this
Tests to re-run (2)
- mcdc_spec_witnesses_test.gomcdc_spec_witnesses_test.go
- obligation_property_test.goobligation_property_test.go
What this rests on
Parent requirements (1)
Discussions
Discuss this with the proof team. Nothing changes in your audit automatically — you open a request and a staff member records any outcome inside the thread.