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jsonparser
ProbeLabs23 findings · 123 requirementsWhen GetString addresses a value that is not a JSON string (e.g., a number, boolean, object, array, or null), the parser shall return a type-mismatch error.
Specification
The requirement exactly as authored — its complete prose text and, where present, the formal FRETish sentence it compiles to.
When GetString addresses a value that is not a JSON string (e.g., a number, boolean, object, array, or null), the parser shall return a type-mismatch error.
the parser shall always satisfy !getstring_addressed_value_is_not_string | returns_getstring_type_mismatch_error
Rationale & tags
Why this requirement exists, and how it is categorised.
Rationale & tags
Why this requirement exists, and how it is categorised.
GetString has explicit type-checking logic that rejects non-string values. This type-mismatch behavior is distinct from successful string decoding and from malformed-input error propagation.
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 14, 2026, 18:00 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-53
GetString checks the ValueType returned by Get and, when it is not String, returns a type-mismatch error: NullValueError for null and
fmt.Errorf("Value is not a string: %s", ...)for any other non-string type (parser.go:2054-2059). This covers numbers, booleans, objects, arrays and null as the description enumerates, satisfying !getstring_addressed_value_is_not_string | returns_getstring_type_mismatch_error. Every branch returns a non-nil error before reaching the raw/ParseString return paths.Cited code (2)
Obligations
What this requirement must witness to be considered satisfied — the required evidence, and the tests that discharge each one.
1 obligation · 1 discharged
Browse the catalogueGetString on a numeric value like 42 returns an empty string and silently masks the type error, corrupting the caller's string-typed schema with phantom data.
- nominalrequiredpresentCovered by 1 test
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 !getstring_addressed_value_is_not_string | returns_getstring_type_mismatch_error
Variables
| Name | Type | Direction | Description |
|---|---|---|---|
| getstring_addressed_value_is_not_string | — | True when GetString addresses a value that is not a JSON string. | |
| returns_getstring_type_mismatch_error | — | True when GetString returns a type-mismatch error for a non-string addressed value. |
Witnesses· 3 scenarios total
- TestMCDC_SYS_REQ_073_Row1_TriggerFalseexercises 1 condition scenario
- TestMCDC_SYS_REQ_073_Row2_InvariantViolationexercises 1 condition scenario
- TestMCDC_SYS_REQ_073_Row3_TypeMismatchErrorexercises 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| # | getstring_addressed_value_is_not_string | returns_getstring_type_mismatch_error | Result | Proves | Covering test |
|---|---|---|---|---|---|
| 1 | F | F | T | getstring_addressed_value_is_not_string | |
| 2 | T | F | F | getstring_addressed_value_is_not_string | |
| 3 | T | T | T | returns_getstring_type_mismatch_error |
Its place
How this requirement connects — what proves it, what it affects, and what it rests on. Authored links only here; automatically derived links come from the audit index.
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Trace evidence
The concrete artifacts linked to this requirement — implementing code, verifying tests, documents, and the findings raised against it.
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
Files to re-check (1)
- parser.goparser.go
Tests to re-run (3)
- deep_spec_test.godeep_spec_test.go
- mcdc_spec_witnesses_test.gomcdc_spec_witnesses_test.go
- obligation_evidence_test.goobligation_evidence_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.