132 → 0. Auto-fix cleared the easy 24 (commas, braces, trailing
newlines). Remaining 108 broken down per the iBash field-notes
triage:

- 78 identifier_name: all local-variable renames — no public-API
  parameter labels touched (every short-name violation is on a let,
  closure param, or case binding). Common renames: sb → sandbox,
  rc → result, h → lower/headStr, i/v → index/value, n → count,
  bp/ok → buffer/success, e → entry.

- 15 optional_data_string_conversion: library streaming-decode sites
  get surgical `// swiftlint:disable:next` with reasons — the rule's
  preferred failable form would drop bytes on partial UTF-8 chunks,
  which is wrong for InputSource/OutputSink contracts. Test sites
  switched to the rule's preferred `String(bytes:encoding:) ?? ""`
  form (cleaner than a disable per call site).

- 3 large_tuple: new local structs PrivateIP.IPv4Address (4-octet
  return shape) and HostInfo.UnameInfo (5-field uname result).

- 2 function_body_length: DefaultProcessLauncher.launch split into
  four private helpers (collectInputBytes, subprocessExecutable,
  subprocessEnvironment, resolveWorkingDirectory). HostInfo.real
  split into realUserAndFull + realSupplementaryGroups.

- 5 function_parameter_count: surgical disables on the launcher
  protocol + 4 conformers. The 7-arg signature mirrors POSIX exec
  (program + args + env + cwd + stdin + stdout + stderr); bundling
  into a struct is a breaking protocol change for every ShellKit
  consumer for no behavioural gain.

- 1 cyclomatic_complexity: PrivateIP.isPrivateIPv4 refactored into
  a top-half that handles whole-first-octet ranges and a private
  isReservedIPv4OctetPair helper for the octet-pair ranges (link-
  local, 172.16/12, 192.168/16, 192.0/24, CGNAT). No disable.

- 3 for_where, 1 nesting (Entry.State, disabled with reason),
  remaining mechanical rewrites.

`swift build` clean, `swift test` 33/33 passing, `swiftlint --strict`
exit 0.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>