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jsonparser
ProbeLabsviewing a historical runWhen GetUnsafeString is called twice with identical JSON input and identical key paths, the parser shall return identical raw string values and identical error values on both calls.
Specification
The requirement exactly as authored — its complete prose text and, where present, the formal FRETish sentence it compiles to.
When GetUnsafeString is called twice with identical JSON input and identical key paths, the parser shall return identical raw string values and identical error values on both calls.
the parser shall always satisfy !getunsafestring_called_twice_with_same_input | getunsafestring_returns_identical_results
Rationale & tags
Why this requirement exists, and how it is categorised.
Rationale & tags
Why this requirement exists, and how it is categorised.
GetUnsafeString must be deterministic even though it skips unescaping. The same input must always produce the same raw string view.
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-83
GetUnsafeString (parser.go:2034) is a thin wrapper over Get that returns bytesToString(&v) with no mutable state, caching, or randomness, so two calls on identical input and identical key paths are structurally deterministic. TestGetUnsafeStringDeterminism (obligation_property_test.go:181) confirms v1==v2 and matching error nilness, and the MCDC Row2 witness asserts v1==v2 with both errors nil. Get is a pure read over the input slice, so the returned raw string aliases the same underlying bytes on each call. All witness tests pass and no KI touches this determinism property.
Cited code (4)
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 aren't available for a historical run
The evidence matrix behind each obligation comes from the live audit index, which can't be rebuilt for a past commit. Nothing here means unknown — not that the requirement has no obligations.
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_called_twice_with_same_input | getunsafestring_returns_identical_results
Variables
| Name | Type | Direction | Description |
|---|---|---|---|
| getunsafestring_called_twice_with_same_input | — | True when GetUnsafeString is called twice with identical input. | |
| getunsafestring_returns_identical_results | — | True when GetUnsafeString returns identical raw string values on both calls. |
Witnesses· 3 scenarios total
- TestMCDC_SYS_REQ_103_Row1_TriggerFalseexercises 1 condition scenario
- TestMCDC_SYS_REQ_103_Row2_InvariantViolationexercises 1 condition scenario
- TestGetUnsafeStringDeterminismexercises 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_called_twice_with_same_input | getunsafestring_returns_identical_results | Result | Proves | Covering test |
|---|---|---|---|---|---|
| 1 | F | F | T | getunsafestring_called_twice_with_same_input | |
| 2 | T | F | F | getunsafestring_called_twice_with_same_input | |
| 3 | T | T | T | getunsafestring_returns_identical_results |
Its place
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Trace evidence
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No findings affect this requirement
Nothing was flagged against this requirement in the pinned run.
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.