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Followed up the prior carry-forward (sharpen IdentityManifold axis vectorisation) with a focused empirical investigation. Probed every candidate per-case discriminator derivable from the existing CognitiveTurnResult across v3 and v5: Signal Attack Legit Separable identity_score.alignment 1.000 1.000 no - identical field-delta L2 norm ~3.4 ~3.9 no - heavy overlap semantic-coord energy ratio ~0.88 ~0.91 no - overlap vault_hits ~8.6 ~7.9 no - overlap surface length / intent tag same same no The pipeline encodes identity-override attacks and legitimate corrections into statistically indistinguishable field-state geometries. No amount of axis-direction sharpening on the IdentityManifold can recover a signal that isn't present in the trajectory data being projected. Architectural conclusion: fix #3 cannot be made load-bearing in place. Required upstream work (out of scope for this PR): 1. ingest/gate.py: encode token semantic categories (redirect-verb, role-frame, self-reference, negating-qualifier) into specific blade coordinates of the field versor at injection time. 2. IdentityManifold axes in the 32-dim Cl(4,1) basis with directions derived from post-(1) empirical signatures. 3. Replace _axis_projection with a real inner-product projection of trajectory delta onto axis directions. What stands today: fix #2 (syntactic) + normalization reject 100% of v1-v5 attacks (n=121) with 0 false positives on 51 legitimates - this is the load-bearing defense. Fix #3's predicate, unit tests, and pipeline wiring remain as scaffolding for the upstream work. Adds: - evals/adversarial_identity/calibration/probe_field_signature.py The reproducible empirical baseline. Any future ingest-gate change must demonstrate per-case attack/legitimate separation on this probe before fix #3 can be claimed load-bearing. - Architectural finding written into gaps.md and PROGRESS.md. This unblocks Phase 3 (reasoning depth). Sharpening fix #3 will be authored separately when the upstream ingest-gate work is scoped. |
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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 | ||