OverkillOS vs OpenSpec
Read on 23 September 2026 from OpenSpec's own pages (sources below). Where they are better, we say so.
| OverkillOS | OpenSpec | |
|---|---|---|
| Memory | Three tiers: QUICKSTART (~300 tokens) every boot, MEMORY on demand, ARCHIVE; global and per project | openspec/specs as source of truth; no session memory |
| Boot protocol | Yes: Live State Block + a fixed four-file boot | None |
| Research / PRD pipeline | Research-to-PRD per area behind a four-part pre-PRD gate | propose → apply → archive |
| Verification gates | Binary gates, evidence rows, no-regression rule (by instruction, not enforced by CI) | A verify step exists; mechanics not verified |
| IDE / agent support | Cursor first; playbooks for Antigravity and OpenClaw; no Claude Code adapter yet | 30+ tools |
| Dashboard / app | Local control plane (21 screens); no installer, not hosted | None (CLI) |
| Licence | MIT; the kit is shared through early access | MIT |
| Price | Nothing for sale | Free |
Where OpenSpec is better
- A lighter workflow that is easy to adopt, across 30+ tools.
Where OverkillOS is different
- Tiered memory and a boot protocol.
- Evidence rows and a no-regression rule.