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SYS-REQ-033SystemReview

When Delete is called with a provided path and the addressed target exists in usable input, the parser shall return the JSON document with that target removed.

PriorityshallTypeguaranteeCategoryfunctionalComponentparserAssuranceEFindingsnone open

Specification

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

Description

When Delete is called with a provided path and the addressed target exists in usable input, the parser shall return the JSON document with that target removed.

FRETish formula
the parser shall always satisfy !delete_path_is_provided | !delete_target_exists | delete_returns_document_without_target

Rationale & tags

Why this requirement exists, and how it is categorised.

Successful deletion of an existing target is a distinct API behavior from no-path handling, missing-target preservation, and unusable-input robustness.

decompositiondeletemutation

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, 15:45 UTC · agent:codex
Modified
Apr 14, 2026, 15:45 UTC · agent:codex

Obligations

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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 !delete_path_is_provided | !delete_target_exists | delete_returns_document_without_target

Variables

NameTypeDirectionDescription
delete_path_is_providedTrue when Delete is called with at least one path segment.
delete_target_existsTrue when the addressed Delete target exists and can be isolated in the input JSON.
delete_returns_document_without_targetTrue when Delete returns the JSON document with the addressed value removed.

Witnesses· 4 scenarios total

  • TestMCDC_SYS_REQ_033_Row1_TriggerFalse
    mcdc_spec_witnesses_test.go:1159exercises 1 condition scenario
  • TestMCDC_SYS_REQ_033_Row2_MissingTarget
    mcdc_spec_witnesses_test.go:1170exercises 1 condition scenario
  • TestMCDC_SYS_REQ_033_Row3_InvariantViolation
    mcdc_spec_witnesses_test.go:1180exercises 1 condition scenario
  • TestDelete
    parser_test.go:1350exercises 1 condition scenario

Its place

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Trace evidence

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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)

  • mcdc_spec_witnesses_test.gomcdc_spec_witnesses_test.go
  • parser_test.goparser_test.go

What this rests on

Discussions

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