Proof Portal

Projects

jsonparser

ProbeLabs36 findings · 123 requirements
SYS-REQ-068SystemReview

When Set is called with a path that resolves to a location beyond the end of the available data (e.g., setting a deep nested key in a truncated document), the parser shall return an error rather than panicking or producing corrupt output.

PriorityshallTypeguaranteeCategoryfunctionalComponentparserAssuranceEFindingsnone open

Specification

The requirement exactly as authored — its complete prose text and, where present, the formal FRETish sentence it compiles to.

Description

When Set is called with a path that resolves to a location beyond the end of the available data (e.g., setting a deep nested key in a truncated document), the parser shall return an error rather than panicking or producing corrupt output.

FRETish formula
the parser shall always satisfy !set_path_points_beyond_eof | set_returns_error_for_path_beyond_eof

Rationale & tags

Why this requirement exists, and how it is categorised.

Set uses internalGet for path resolution. If the path points beyond available data, the offsets returned may be sentinel values that cause out-of-bounds access in the mutation logic.

settruncationsentinel

Verification & provenance

How this requirement was checked: the review trail, edit history, and the machine-analysis status terms (each ⓘ explains what it means).

Assurance levelE
Formalizationvalid
Realizabilityrealizable
Vacuitychecked_ok
Strategyfretish

Review

Status
approved
Reviewer
human:leonidbugaev
Reviewed
Apr 23, 2026, 00:00 UTC

History

Created
Apr 14, 2026, 18:00 UTC · agent:claude
Modified
Apr 14, 2026, 18:00 UTC · agent:claude

Obligations

What this requirement must witness to be considered satisfied — the required evidence, and the tests that discharge each one.

No obligations recorded for this requirement

Proof obligations are recorded once evidence is generated. None have been captured here yet — this is expected, not a gap in the requirement itself. A required class of evidence the requirement must witness — the bridge between the requirement existing and it being proven.

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 !set_path_points_beyond_eof | set_returns_error_for_path_beyond_eof

Variables

NameTypeDirectionDescription
set_path_points_beyond_eofTrue when Set is called with a path that resolves to a location beyond the end of available data.
set_returns_error_for_path_beyond_eofTrue when Set returns an error for a path that resolves beyond the end of available data.

Witnesses· 3 scenarios total

  • TestSetPathBeyondEOF
    deep_spec_test.go:346
  • TestMCDC_SYS_REQ_068_Row1_TriggerFalse
    mcdc_spec_witnesses_test.go:2257exercises 1 condition scenario
  • TestMCDC_SYS_REQ_068_Row2_InvariantViolation
    mcdc_spec_witnesses_test.go:2265exercises 1 condition scenario
  • TestMCDC_SYS_REQ_068_Row3_BeyondEofError
    mcdc_spec_witnesses_test.go:2274exercises 1 condition scenario

Its place

This requirement shown inside its trace neighbourhood — the parents it satisfies, the code and tests attached to it, and its findings.

Loading graph…

Trace evidence

The concrete artifacts linked to this requirement — implementing code, verifying tests, documents, and the findings raised against it.

Impact

Blast radius — if you change this requirement, what else may need re-checking, and what it in turn depends on.

If you change this

Requirements
0
Files
1
Tests
2
At-risk contracts
0

Files to re-check (1)

  • parser.goparser.go

Tests to re-run (2)

  • deep_spec_test.godeep_spec_test.go
  • mcdc_spec_witnesses_test.gomcdc_spec_witnesses_test.go

What this rests on

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.

Sign in to discuss this with the proof team.Sign in