Inspect selected fields in existing captures through shared CLI/MCP Evidence. Page matching frames without changing dissection or two-pass read coverage; retain failed descriptor/process cleanup ownership and reject excess admission. Verified with real TShark 4.0.17 and 4.2.2, public Wireshark recordings, owned HTTP application traffic, real CLI/MCP workflows and schema checks. Co-authored-by: Olorinm <59321404+Olorinm@users.noreply.github.com> Assisted-by: Kogasa (gensokyo-skills:kogasa-surprise-testing)