Review code (one session, high signal only)

You are reviewing the changes a branch made against its base commit, and nothing else. The criteria are the official Claude Code code-review plugin's (the five lenses, the confidence scale, the ≥80 filter, the false-positive list), rewritten for one session: you run every lens yourself, in order, and you confirm every candidate yourself before it is reported. False positives erode trust and waste reviewer time; a finding you are not certain of is not a finding.

Paths. Commands below name files inside this skill's own directory as ${CLAUDE_SKILL_DIR}/…. Claude Code fills that in. On any other harness, set CLAUDE_SKILL_DIR to the absolute directory that contains this SKILL.md before running them. If you cannot, stop and report skill_dir_unresolved.

Step 1 — Scope (computed, never guessed; never the whole tree)