Phase 4 exited 2026-05-16. All three planned lanes shipped: sample_efficiency (one-shot-per-correction, replay 1.0), long_context_cost (slope 0.99 linear after ADR-0019 Stage 1), multi_agent_composition (15/15 public, composition does not launder identity violations). PROGRESS.md updated with full Phase 4 narrative and exit checklist. ADR-0020 opens the next sequencing decision: Phase 5 (curriculum era) vs. Rust backend parity port. Three options laid out (A: Phase 5 first, B: Rust first, C: parallel with per-surface bit-identity gating). Recommendation: Option C. Status remains Proposed pending user confirmation. |
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| .. | ||
| architecture | ||
| decisions | ||
| sessions | ||
| capability_roadmap.md | ||
| eval_methodology.md | ||
| frontier_baselines.md | ||
| PROGRESS.md | ||
| runtime_contracts.md | ||
| RUST.md | ||
| Whitepaper.md | ||
| Yellowpaper.md | ||