Covers read allow + repository parsing, write denied without write-mode, write
allowed only for whitelisted repos, non-repo write denial, sensitive-path
denial (incl. GET) and override, cross-repo search handling, unknown-method and
traversal rejection before any network call, killswitch, response truncation,
and the raw path-parsing helpers and raw-aware extractors.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
