diff --git a/docs/REVIEW_LOG.md b/docs/REVIEW_LOG.md
index e676268..2c9f736 100644
--- a/docs/REVIEW_LOG.md
+++ b/docs/REVIEW_LOG.md
@@ -7303,3 +7303,63 @@ Both halves mutation-checked: disabling the table-header class fails *"a bold fi
 measurement header is fatal"* and nothing else; accepting an empty waiver fails *"an EMPTY
 waiver is fatal"* and nothing else. End to end, restoring the **24** stops the build with
 both values named. Twenty-two guards green.
+
+---
+
+## R-301 — the narrow repair to R-299, and what R-300 got right
+
+**R-300 was correct and it was correct with a run rather than an argument.** `check-figures`
+reported OK on a bare `**24**` in a table whose own header row reads *Median rounds*, against
+a baseline holding 25. The scan read one line at a time, so measurement status living two
+lines above was invisible.
+
+**The repair is one idea: a cell inherits the measurement status of its column.** That is
+deliberately a *different mechanism* from the shapes rather than more of them — the shapes
+guess at phrasing, and a column header does not have to be guessed at, because **the document
+itself says what the column is.** Where the vocabulary has to anticipate how somebody will
+write a figure, the header only has to be read.
+
+**R-300's general point stands and is now written where the shapes are defined.** A vocabulary
+learned from the marked figures cannot contain the phrasing of the figure nobody marked; the
+defect sits outside the training set by construction. `check-unmarked` attacks that from the
+other end, using **bold as the corpus's own mark of a published figure** — a signal that comes
+from the documents' habits rather than from a guard author's imagination, which is why it
+catches what a shape list cannot.
+
+### Two bugs in the repair, both found before it shipped
+
+1. ⚠ **A citation marker is full of digits and none of them are figures.** `packs
+   line.hollow6.hurt` holds a 6; `fight-tail cut.over15` holds a 15. Scanning raw cell text
+   reported **roughly 130 correctly-cited rows as unheld** — the best-marked tables in the
+   corpus, every one of them fine. Comments are now blanked rather than stripped so every
+   offset still points at the right character of the real line.
+2. **"3.48 of 6"** — the 6 is the party size the mean is out of, not a measurement.
+
+**The first is worth keeping in view.** A guard that reports the correctly-marked material as
+broken is worse than one that misses a defect: the first run produces 130 lines of noise, and
+what a reader learns is to stop reading the output. The blind spot R-300 found cost one wrong
+number; a false-positive storm costs the guard.
+
+**Coverage: 25 figures, 7 marked → 120 figures, 102 marked.**
+
+### Proved by breaking it
+
+| Break | Result |
+|---|---|
+| The historical bare `**24**` in the median-rounds table | fails, at its own line |
+| Strip a marker off a cited prose figure | fails |
+| Plant *"a median 24 rounds"* in prose | fails |
+| Bare figure into a document that cites nothing | trips the ratchet |
+| Threshold column header, *"Past 15 rounds"* | silent |
+| All 102 correctly-cited cells | silent |
+
+Every restore byte-identical.
+
+**Two guards now cover one job**, and that is a decision rather than an accident: `check-figures`
+reads shapes and column headers, `check-unmarked` reads boldness and waivers. They agree on the
+tables and disagree usefully in prose, where one is fatal and the other counts. **Whether they
+should be merged is a question for whoever next has cause to touch either** — the answer is not
+obvious, and two readers that disagree are how three of this session's defects were found.
+
+**State:** CLEAN GROUND v0.24, **22 guards**, 168 cited figures, artwork prompts written and
+nothing generated. Still the only untested thing is a run with human beings.