WombatKV / ds4 0.1.0-alpha

Tier B prefix-share blocks deliver 71.7× cell-B median speedup
(8 486 ms cold → 118 ms warm) with verified coherent output.
58.7× median across 5 conversations × 5 turns at ~9 700-token prompts
demonstrating cross-conversation prefix-share.

See RFC 0013 for the architectural record + measurement methodology.

ds4 — pre-pre-cleanup-for-alpha lock-in snapshot

State captured: ds4 with WombatKV alpha integration. Unified _kvblocks
branch @ fe9db47 includes:
  - G1 Tier-A-first probe (validated 110× cross-restart cell B)
  - G2 raw_tail sidecar (RFC 0007 §10.P5; 90% restore rate)
  - Tier B token-aligned blocks + CPU/Metal save/load
  - ABI 1.6 with raw_tail sidecar C surfaces
  - scripts/ bench harness: demo_wombatkv.sh, run_5mode_bench.py,
    pi_review + sharegpt_multiturn scenarios, aggregator

Bench artifacts (live outside this repo):
  poc_final_142822 — 196× headline (single-prompt)
  showcase_xrestart_213311 — 110× (5-agent cross-restart wiped)
  showcase_xrestart_warmdisk_221438 — honest parity (warm disk)
  coherence_smoke_232802 — output coherence verified

This tag exists so the upcoming wkv-* -> wombatkv-* naming sweep, dead
spike-branch cleanup, and bonus-capability gating can be done on a fresh
branch with an unambiguous rollback point. Next tag: pre-alpha, then
v0.1.0-alpha for public OSS launch.