FA-23042 / Autocomplete interactions / Member archive

Command argument suggestions: argument lookup uses total argument count instead of caret position · case 02

The position completion transition produces an incorrect observable state.

Member previewVariant 2 · 3 implementations · 22 checks per implementation

Case contract

Structured command completion binds each candidate to command identity and argument position. Acceptance replaces the active argument only, quotes values containing spaces, and leaves the command verb and remaining arguments intact. Previously supplied named arguments are excluded from name suggestions.

Why this case matters

Autocomplete couples draft text, suggestion identity and asynchronous presentation; this bounded lifecycle model isolates one observable interaction defect.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
normal position	`2`	`0`	Failed

MEMBER ARCHIVE

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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