agent/finalize.go

@@ -36,9 +36,9 @@ import (
 //     carry answer content (see modeSummary).
 //
 // The last two shapes share one signal — the terminal DEFERS: it tells us the
-// answer is somewhere the user cannot see (isBackRef, or the bookkeeping ack).
-// They differ only in whether the terminal also carries content of its own, so
-// a new deferral phrase added to that shared signal is covered in both the
+// answer is somewhere the user cannot see (pointsAbove, or the bookkeeping
+// ack). They differ only in whether the terminal also carries content of its
+// own, so a new deferral phrasing added to pointsAbove is covered in both the
 // bare and the "+ compression" variant at once.
 //
 // A citations addendum is tested first and wins over the other two (a short
@@ -130,26 +130,33 @@ var backRefRe = regexp.MustCompile(`(?i)(already answered|see above|as (i )?(sai
 // back-reference family is covered without enumerating every phrasing a model
 // might invent — backRefRe's fixed list kept missing new ones (mort issue
 // #1611: "Done — that's the full chain above.").
-var aboveRefRe = regexp.MustCompile(`(?i)\babove\b[ \t]*([.,;:!?)\]"'’”—-]|\n|$)`)
+//
+// The terminator set deliberately excludes the ASCII hyphen. `\b` holds
+// between "above" and "-", so a literal '-' in the class made every
+// hyphenated compound — "above-average", "above-board", "above-ground" —
+// read as a clause-final deictic and put a legitimate short answer at risk of
+// being discarded. The em dash stays: a model writes "…above — see the
+// links", never "above-" as a separator.
+var aboveRefRe = regexp.MustCompile(`(?i)\babove\b[ \t]*([.,;:!?)\]"'’”—]|\n|$)`)
 
 // pointsAbove reports whether a deictic "above" appears in the terminal's
 // OPENING. The offset bound is what makes a bare "above" safe to key on: with
 // almost no text before it in THIS message, the reference cannot be pointing
 // at the message's own content, so it must point at a turn the user never saw
 // (the harness delivers only the final turn).
+//
+// This is the DEFERRAL SIGNAL SHARED by both recovery shapes — isWeakFinal and
+// isSummaryCloser both call it, so a widening here reaches the bare closer and
+// the "+ compression" closer at once. Its sibling backRefRe is deliberately
+// NOT shared: those fixed phrases are matched anywhere in the text, which is
+// only safe under isWeakFinal's 120-byte cap. Folding the two into one
+// predicate for tidiness would hand isSummaryCloser an unanchored match across
+// 300 bytes — widening the gate, not deduplicating it.
 func pointsAbove(t string) bool {
 	loc := aboveRefRe.FindStringIndex(t)
 	return loc != nil && loc[0] <= backRefHeadChars
 }
 
-// isBackRef reports whether a terminal turn defers to earlier content instead
-// of stating the answer — the signal shared by the back-reference and
-// summary-closer shapes (see finalOutput). Extend the class here, once, rather
-// than in either caller.
-func isBackRef(t string) bool {
-	return backRefRe.MatchString(t) || pointsAbove(t)
-}
-
 // summaryCloserRe matches a terminal turn that OPENS with a bookkeeping
 // acknowledgment of the citation round — "Citations are logged.", "Sources
 // cited.", "Logged the citations." — the shape a model produces when it
@@ -219,11 +226,13 @@ const (
 	weakFinalMaxChars = 120
 	// backRefHeadChars bounds how far into the terminal a deictic "above" may
 	// sit and still read as pointing OUTSIDE this message (see pointsAbove).
-	// Same guard as weakFinalMaxChars — "there is not enough text before the
-	// reference for it to be pointing at content inside this turn" — but
-	// expressed as an offset, because a summary closer carries a compression
-	// AFTER the pointer and so is not itself short.
-	backRefHeadChars = 120
+	// It IS weakFinalMaxChars — the same guard ("there is not enough text
+	// before the reference for it to be pointing at content inside this
+	// turn"), expressed as an offset because a summary closer carries a
+	// compression AFTER the pointer and so is not itself short. Defined by
+	// reference, not by repeating the literal: tuning the weak cap without the
+	// offset following it would split one rule into two.
+	backRefHeadChars = weakFinalMaxChars
 	// recoverMinChars: a prior assistant turn this long is treated as a real
 	// answer regardless of how it opens (the preamble filter is not applied at
 	// this length — see isSubstantiveAnswer).
@@ -256,7 +265,7 @@ func isWeakFinal(s string) bool {
 	if t == "" {
 		return true
 	}
-	return len(t) <= weakFinalMaxChars && isBackRef(t)
+	return len(t) <= weakFinalMaxChars && (backRefRe.MatchString(t) || pointsAbove(t))
 }
 
 // isCitationsOnly reports whether a terminal turn is essentially just a

agent/finalize_test.go

@@ -51,6 +51,13 @@ func TestIsWeakFinal(t *testing.T) {
 // that had never been posted.
 const closer1611 = "Done — that's the full chain above. Short version: it's not one incident, it's the confluence of the Iran war, the Epstein files, and three ex-allies now openly plotting a third-party movement that finally set him off."
 
+// analysis1611 stands in for that run's front-loaded analysis: long enough to
+// dwarf closer1611 (>3x its 220 bytes). Shared by the finalOutput table and
+// the end-to-end Run test so the two cannot drift apart.
+func analysis1611() string {
+	return strings.TrimSpace(strings.Repeat("The break was the Iran strikes, then the Epstein files. ", 12))
+}
+
 func TestPointsAbove(t *testing.T) {
 	cases := []struct {
 		name string
@@ -72,13 +79,24 @@ func TestPointsAbove(t *testing.T) {
 		{"above-all", "Above all, keep the deploy green.", false},
 		{"above-average", "Turnout was above average in three counties.", false},
 
+		// Hyphenated compounds. \b holds between "above" and "-", so a literal
+		// '-' in the terminator class made all of these read as deictic — the
+		// space-separated cases above did NOT cover it (gadfly, 3 models).
+		{"hyphen-above-average", "Turnout was above-average in three counties.", false},
+		{"hyphen-above-board", "The deal was above-board from the start.", false},
+		{"hyphen-above-ground", "Run the above-ground cable along the fence.", false},
+		{"hyphen-above-mentioned", "The above-mentioned findings are attached.", false},
+
 		{"no-above-at-all", "42", false},
 		{"empty", "", false},
 
 		// Offset bound: past backRefHeadChars there IS enough text before the
-		// reference for it to be pointing inside this same message.
-		{"late-reference-not-a-pointer", strings.Repeat("x", backRefHeadChars+1) + " as shown above.", false},
-		{"reference-at-the-bound", strings.Repeat("x", backRefHeadChars-6) + " above.", true},
+		// reference for it to be pointing inside this same message. The
+		// lengths are LITERALS, not backRefHeadChars +/- n: a case sized from
+		// the constant it is meant to pin moves with it, and a break-check
+		// that widened the bound to 100000 sailed straight through.
+		{"late-reference-not-a-pointer", strings.Repeat("x", 200) + " as shown above.", false},
+		{"reference-at-the-bound", strings.Repeat("x", 100) + " above.", true},
 	}
 	for _, c := range cases {
 		t.Run(c.name, func(t *testing.T) {
@@ -87,6 +105,18 @@ func TestPointsAbove(t *testing.T) {
 			}
 		})
 	}
+
+	// The two bounds are ONE guard expressed two ways (see backRefHeadChars).
+	// Pinned here so decoupling them is a test failure, not a silent drift.
+	if backRefHeadChars != weakFinalMaxChars {
+		t.Errorf("backRefHeadChars = %d, weakFinalMaxChars = %d: the offset bound and the "+
+			"weak-final cap are the same guard and must stay equal",
+			backRefHeadChars, weakFinalMaxChars)
+	}
+	if weakFinalMaxChars != 120 {
+		t.Errorf("weakFinalMaxChars = %d, want 120: the literal-length cases in this table "+
+			"pin the bound at 120 and must be resized with it", weakFinalMaxChars)
+	}
 }
 
 func TestIsCitationsOnly(t *testing.T) {
@@ -208,7 +238,7 @@ func TestFinalOutput(t *testing.T) {
 	// and long enough (>~92 bytes) that longAnswer would fail the summary bar.
 	bothMatchCloser := "Citations are logged. As I mentioned above, the full detail on the money sources is in my earlier message."
 	// The #1611 pair: a front-loaded analysis that dwarfs its 220-byte closer.
-	analysis1611 := strings.TrimSpace(strings.Repeat("The break was the Iran strikes, then the Epstein files. ", 12)) // >3x closer1611
+	analysis := analysis1611()
 	// A terminal using "above" as a PREPOSITION — not a back-reference, so it
 	// must survive verbatim next to a dwarfing prior turn.
 	prepositionalTerminal := "Anything above 100 degrees boils off, which is exactly why the sample evaporated overnight in the unsealed tray."
@@ -460,12 +490,12 @@ func TestFinalOutput(t *testing.T) {
 			name: "above-pointer closer discarded when the front-loaded answer dwarfs it",
 			msgs: []llm.Message{
 				llm.UserText("what set off the Truth Social rant?"),
-				asst(analysis1611, cite...),
+				asst(analysis, cite...),
 				llm.ToolResultsMessage(llm.ToolResult{ID: "c1", Name: "cite", Content: "ok"}),
 				asst(closer1611),
 			},
 			terminal: closer1611,
-			want:     analysis1611,
+			want:     analysis,
 		},
 		{
 			// The dwarf ratio governs the new opener too: a prior turn that is
@@ -652,7 +682,7 @@ func TestRun_RecoversFrontLoadedAnswerWithCitations(t *testing.T) {
 // compression. The delivered output must be the front-loaded analysis, with no
 // extra model call.
 func TestRun_RecoversFrontLoadedAnswerOverAboveRefCloser(t *testing.T) {
-	analysis := strings.TrimSpace(strings.Repeat("The break was the Iran strikes, then the Epstein files. ", 12))
+	analysis := analysis1611()
 	fp := fake.New("fp")
 	fp.Enqueue("test-model",
 		fake.ReplyWith(llm.Response{