changed-file-validation

Runs an opt-in, bounded validation pass over the files one work batch changed. Collects project-scoped paths manually, deduplicates them per session, and checks each supported file once: PowerShell parsing and PSScriptAnalyzer in an owned, time-bounded worker process, and markdown through a real markdownlint plus a partial four-rule native structure check. A receipt names the plan identity, each validator with its version and config, and the SHA-256 of the exact bytes read, so changed content, a changed plan, or a tampered receipt cannot inherit a pass. Missing tools, oversized input, and timeouts stay unavailable and unverified. USE FOR: validate the files changed in this batch, collect changed paths for a later check, read or revalidate a receipt, see what is still unverified. DO NOT USE FOR: replacing immediate tests or the full build gate, formatting files, whole-project linting after every edit, deployment health checks, debugging a failing build (use sampler-build-debug).

Compatibility

Windows PowerShell 5.1 or PowerShell 7 or later. PSScriptAnalyzer is optional and reported as unavailable when absent. Markdown lint coverage needs an already-installed markdownlint-cli executable; nothing is downloaded or installed and no network call is made.