docs: register oral B structural recovery

3 files changed, 17 insertions, 0 deletions

diff --git a/README.md b/README.md
index 6c69dba..eded470 100644
--- a/README.md
+++ b/README.md
@@ -88,6 +88,9 @@ SDIL does not currently explain the reported error-derivative signature, and
 the residual mechanism is supported for traffic predictable from the chosen
 somatic statistic rather than arbitrary top-down context. `ROADMAP.md` and
 `ORAL_B.md` contain the frozen gates and complete negative branches.
+A mechanics-only recovery now separates perturbation-learned causal role from
+within-episode performance velocity; it passes its algebraic checks but has no
+task endpoint and does not yet weaken this limitation.
 
 ## Publication-facing artifacts
 
@@ -99,6 +102,8 @@ somatic statistic rather than arbitrary top-down context. `ROADMAP.md` and
 - `MIXED_TRAFFIC.md`: frozen standard-ResNet raw/matched/innovation accept gate;
 - `DYNAMIC_INNOVATION.md`: post-failure two-timescale stability theory and
   frozen D1--D4 gates;
+- `ORAL_B_RECOVERY.md`: structural diagnosis and mechanics-only temporal-
+  difference recovery boundary;
 - `ORAL_A.md`: frozen standard CIFAR ResNet funnel;
 - `ORAL_A_V2.md`: frozen post-failure representable-subspace funnel;
 - `ORAL_A_V3.md`: frozen vectorizer-space causal-calibration funnel;
diff --git a/REVIEW_SCORECARD.md b/REVIEW_SCORECARD.md
index 0d03486..d5f3d96 100644
--- a/REVIEW_SCORECARD.md
+++ b/REVIEW_SCORECARD.md
@@ -47,6 +47,7 @@ Every formal result report records:
 3. Innovation was not uniformly beneficial for arbitrary endogenous top-down traffic, so the
    supported mechanism is narrower than the initial claim.
 4. The frozen oral-B screen falsified the desired-velocity and Harnett error-derivative claims.
+   A temporal-difference factorization repairs the sign algebra only; it has no task endpoint.
 5. The new full ResNet-20 evidence is one validation seed.  The paired five-seed D4 test panel is
    open but incomplete, so robustness and noninferiority to clean KP are not yet established.
 
diff --git a/ROADMAP.md b/ROADMAP.md
index 67f0b31..a8de7d2 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -32,6 +32,17 @@ preregistered stop rule, environment seeds 10--15 and all confirmation model see
 untouched. This falsifies the current model's claimed emergence of the Harnett derivative signature;
 it cannot be repaired by reporting only its successful learning or decoder results.
 
+**Oral-B recovery R0 status: mechanics passed, task gate sealed.** Reinspection
+of Fig. 5 and Extended Data Fig. 13 identifies a structural target conflict:
+the failed vectorizer regressed `e_t s_i`, so its role contrast encoded current
+error magnitude rather than the sign of error change. `ORAL_B_RECOVERY.md`
+factorizes a new candidate into a perturbation-learned causal role and the
+within-episode performance innovation `|e_(t-1)|-|e_t|`. Deterministic checks
+recover the role at cosine `0.9963` and change the controlled sign index from
+negative to `+0.100`. This is mechanics only; no BCI endpoint, development
+seed, or confirmation seed is touched. The learning gate remains sealed until
+D4 closes and a separate R1 protocol is committed.
+
 ## Frozen accept claims and gates
 
 ### C1. Innovation is necessary under naturally mixed apical traffic