[TaekeK]

Moves self-mutation to PSMutant 0.9.0 and turns on its two new operators, NumberBoundary and ArithmeticOperator. StringLiteral is still the only opt-in operator left off.

Their first run scored 98.9%, with 19 survivors. Sorted:

One real fault, fixed (opens 0.7.2). Get-PSCxModuleVersion took the report's producedBy version from Get-Module's first answer. With two versions of PSComplexity imported side by side, that is whichever PowerShell lists first, not the one writing the report. It now reads the manifest beside src/, which is always the version that ran. CHANGELOG and ReleaseNotes are updated.

Four test gaps, now tested:

• Union order (Ast.ps1): the existing fixture, continue/break/continue, reads the same reversed, so a walk numbered downwards also passed. Added a case that doesn't read the same reversed.
• A self-call through ${function:...} with an argument after it, so CommandElements[0] and [-1] differ.
• Find-PSCxRunConfigFile under a case-insensitive comparison returns the first path's spelling. The assertion is case-sensitive, because Should-Be compares strings without case and let the mutant through.
• A blank line after a further comment still separates a declaration from its unit. PSMutant's copy of this code has the same test.

Declared equivalent, beside the code. These are # PSMutant-Equivalent: comments, as PSMutant's own source uses. Most are an index [0] -> [-1] into a list that holds exactly one item by then, or a counter that is only ever compared with -gt 0 or against a line number of at least 1. Where one line held two identical mutants, it is split so each declaration names exactly one. Position = 0 -> (-1) on -Path sits in the config beside the existing 0 -> 1: checked on 7.5 and 7.6, it binds identically.

All gates run locally on 7.6.8:

• unit tests: 1316 passed;
• order independence;
• lint;
• CI parity;
• coverage 100%;
• complexity 15/15;
• release consistency (0.7.2);
• self-mutation: 1673 mutants, every undeclared one killed. The last survivor, the config-spelling mutant, was rechecked by planting it by hand.

🤖 Generated with Claude Code

https://claude.ai/code/session_01Q2xHDB6dJmcwLt5EfS2QVP