Opened harvest-page brief for cidr-to-ip-range from user request “cidr notation calculator,” with H1 CIDR to IP range and coverage gate 0b green. | Dev Logs

Date: 2026-08-28 23:30 Summary: Opened harvest-page brief for cidr-to-ip-range from user request “cidr notation calculator,” with H1 CIDR to IP range and coverage gate 0b green.

[question] 立项：cidr notation calculator

[try to solve] Mapped the head-adjacent query to the existing CIDR Keyword Planner harvest slug instead of creating a doorway cidr-notation-calculator URL.

• Slug / path: cidr-to-ip-range → /tools/cidr-to-ip-range
• H1: CIDR to IP range (not “CIDR Calculator” / “CIDR Notation Calculator”)
• Absorb into this page: notation calculator, generic CIDR calculators, mask ↔ prefix, capped expand, contains/overlap, light visual, Proxmox use-case hook
• Out of scope on this page: IPv6 (→ ipv6-cidr), reverse start–end→CIDR (→ ip-range-to-cidr), private-prefix classifier, cheat sheet, VLSM/VPC planners
• Deliverables: work-tasks/cidr-to-ip-range/ (00–03), status 02=ready / 03=briefs-ready, Ads/Planner long-tail table + intent review filled
• Gate: npm run coverage:gate -- --slug=cidr-to-ip-range --phase=0b OK
• Cluster role: harvest / title_gap_fallback — does not take the weekly attack build slot
• Next session (when implementing): catalog + Page + en i18n → phase=2 → other locales → phase=4 → verify:tool

[actions]

• Added work-tasks/cidr-to-ip-range/{00,01,02,03}-*.md
• Updated docs/seo/keyword-to-tool-tracker.md and planner §5 note for the opened work-tasks folder