diff --git a/docs/configuration.md b/docs/configuration.md
index 2f16c95..14ba4b2 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -130,19 +130,24 @@ fallback chain. Any text-only rung is skipped.
 
 Pool `R` is optional, and its presence is its own switch: with no `R` models
 the generator serves only the five base lanes; with a full ladder it also
-serves `ox-only` (every role on the free pool) and `ox-led` (the free pool
-leads everything high-volume; plan/slow/designer/reviewer cross to Anthropic,
-and `fable` may still lead those). A half-declared R ladder is refused. A
-one-model family — Ox Alpha is exactly that — declares the same id once per
-tier with ascending thinking ceilings (`low→low`, then `low→high`, then
-`low→max`); the tier dial then means thinking depth. `code generate init`
-never scaffolds pool R: curate those entries by hand and re-confirm
-`probed: true` yourself.
+serves three ox lanes — `ox-only` (every role on the free pool),
+`ox-led` (the free pool leads everything high-volume while plan/slow/
+designer/reviewer cross to Anthropic, and `fable` may still lead those), and
+`ox-lean` (the mirror: paid providers answer for default/task/librarian while
+the free pool absorbs scout/sonic/smol/tiny/commit and vision; `fable` and
+fable-as-main stay available, so an elite can take the default seat). A
+half-declared R ladder is refused. A one-model family — Ox Alpha is exactly
+that — declares the same id once per tier with ascending thinking ceilings;
+the tier dial then means thinking depth. `code generate init` never scaffolds
+pool R: curate those entries by hand and re-confirm `probed: true` yourself.
 
 The thinking scale is `minimal · low · medium · high · xhigh · max`. Write
-`low→max` for a contiguous run, or a comma list when the model skips a level:
-claude-opus-4-6 offers `low,medium,high,max` but not `xhigh`, and a range there
-would claim a level the API rejects. A single-level model writes `low→low`.
+`low→max` ONLY for a genuinely contiguous run — a range claims every level in
+between, and requesting one the model doesn't offer sends a level the API may
+reject. A model that skips levels must be written as a comma list:
+claude-opus-4-6 offers `low,medium,high,max` but not `xhigh`; Ox Alpha offers
+only `low,high,max`, so its rungs declare `low→low`, `low,high`, and
+`low,high,max`. A single-level model writes `low→low`.
 
 ## The `ctrl+o` classifier
 
diff --git a/generate.go b/generate.go
index 67f8d59..837e4b8 100644
--- a/generate.go
+++ b/generate.go
@@ -412,28 +412,66 @@ var (
 	genExtremes  = map[string]bool{"minimal": true, "max": true}
 )
 
-func lanePrimary(lane string) string {
-	if lane == "ox-only" || lane == "ox-led" {
-		return "R"
-	}
-	if lane == "gpt-only" || lane == "gpt-led" || lane == "mixed" {
-		return "O"
-	}
-	return "A"
-}
-
-func lanePure(lane string) bool {
-	return lane == "gpt-only" || lane == "claude-only" || lane == "ox-only"
+// lanePolicy is a lane's whole role-mapping, as data. primary answers for
+// default/task/librarian; delib hosts plan/slow/designer/reviewer ("" = the
+// primary); util hosts scout/sonic/smol/tiny/commit ("" = primary); vision is
+// the image rung's pool, with visionSmart overriding it when the model dial
+// sits on smart (mixed prefers Claude's tier-3 for that). pure lanes never
+// cross: reviewer and advisor stay in-primary.
+//
+// This table is the whole generator's sense of "a lane". A new setup — a new
+// pool pairing, a new emphasis — is a row here, not new branches in genCombo;
+// keep it that way. The reviewer always ends up off its lead pool unless the
+// lane is pure (the anti-tunnel-vision rule), and the advisor leads on the
+// minimum-diversity pool (delib when set, else the crossing target).
+type lanePolicy struct {
+	primary     string
+	delib       string
+	util        string
+	vision      string
+	visionSmart string
+	pure        bool
+}
+
+var genLanePolicies = map[string]lanePolicy{
+	"gpt-only":    {primary: "O", pure: true},
+	"gpt-led":     {primary: "O"},
+	"mixed":       {primary: "O", delib: "A", visionSmart: "A"},
+	"claude-led":  {primary: "A"},
+	"claude-only": {primary: "A", pure: true},
+	"ox-only":     {primary: "R", pure: true},
+	"ox-led":      {primary: "R", delib: "A"},
+	// The mirror of ox-led: paid providers keep everything that answers for
+	// the work (default, task, librarian), while the free pool absorbs the
+	// high-volume background and image description.
+	"ox-lean": {primary: "O", delib: "A", util: "R", vision: "R"},
+}
+
+func (p lanePolicy) pool(role string) string {
+	if p.pure {
+		return p.primary
+	}
+	if genDelib[role] && p.delib != "" {
+		return p.delib
+	}
+	if genCrossLed[role] {
+		return otherPool(p.primary)
+	}
+	if genUtil[role] && p.util != "" {
+		return p.util
+	}
+	return p.primary
 }
 
 // lanes lists the lanes this catalog serves: the five base lanes always, plus
-// the ox pair only when the optional OpenRouter ladder is fully declared. This
-// is the generator side of the ox on/off switch.
+// the ox trio only when the optional OpenRouter ladder is fully declared.
+// This is the generator side of the ox on/off switch. Order follows the dial:
+// base lanes first, ox lanes appended.
 func (c *catalog) lanes() []string {
 	if !c.hasOxLadder() {
 		return genBaseLanes
 	}
-	return append(append([]string{}, genBaseLanes...), "ox-only", "ox-led")
+	return append(append([]string{}, genBaseLanes...), "ox-only", "ox-led", "ox-lean")
 }
 
 type roleRoute struct {
@@ -447,35 +485,16 @@ type roleRoute struct {
 // of generate-profiles.py's gen(), with the hard-coded model keys generalised
 // to pool/tier lookups.
 func (c *catalog) genCombo(lane, mtier, thinking string, spark, fable, fableMain bool) map[string]roleRoute {
-	p := lanePrimary(lane)
+	pol := genLanePolicies[lane]
+	p := pol.primary
 	base := genTierMap[mtier]
-	isPure := lanePure(lane)
+	isPure := pol.pure
 	extreme := genExtremes[thinking]
 	sparkKey := c.ladder["O"][0]
 	eliteKey := c.ladder["A"][4]
 
 	rprov := func(r string) string {
-		if isPure {
-			return p
-		}
-		if lane == "mixed" {
-			if genDelib[r] {
-				return "A"
-			}
-			return "O"
-		}
-		// ox-led keeps the free pool on everything high-volume (workers,
-		// utility, vision) and spends the paid judgment where it pays:
-		// deliberative roles cross to Anthropic. The reviewer crossing below
-		// lands there too, which still satisfies the anti-tunnel-vision rule —
-		// the second eye never shares the lead's pool.
-		if lane == "ox-led" && genDelib[r] {
-			return "A"
-		}
-		if genCrossLed[r] {
-			return otherPool(p)
-		}
-		return p
+		return pol.pool(r)
 	}
 
 	out := map[string]roleRoute{}
@@ -515,10 +534,12 @@ func (c *catalog) genCombo(lane, mtier, thinking string, spark, fable, fableMain
 			// omp falls back @vision → @default → active model when it needs an
 			// image described, and describeForTextModels is on by default — so
 			// this rung must be a model that actually accepts images. Vision
-			// follows the model tier; mixed smart prefers Claude's smart rung.
 			vp := p
-			if lane == "mixed" && mtier == "smart" {
-				vp = "A"
+			if pol.vision != "" {
+				vp = pol.vision
+			}
+			if mtier == "smart" && pol.visionSmart != "" {
+				vp = pol.visionSmart
 			}
 			lead := c.visionLead(vp, base)
 			if lead == "" && !isPure {
@@ -634,6 +655,9 @@ func genValid(lane string, spark, fable, fableMain bool) bool {
 	if lane == "ox-led" && (spark || fableMain) {
 		return false // utility already lives on the free pool; fable-as-main would defeat the lane
 	}
+	if lane == "ox-lean" && spark {
+		return false // the drain bucket's leads are ox here; spark has nothing to drain
+	}
 	if fableMain && !fable {
 		return false // fable-as-main only exists on top of fable
 	}
diff --git a/generate_test.go b/generate_test.go
index 995ede2..1d925a0 100644
--- a/generate_test.go
+++ b/generate_test.go
@@ -1150,7 +1150,7 @@ const oxEntries = `
     speed: 27.4
     ttft: 2.1
     context: 1048576
-    thinking: low→high
+    thinking: low,high
   oxmax:
     id: stealth/ox-alpha
     pool: R
@@ -1161,7 +1161,7 @@ const oxEntries = `
     speed: 27.4
     ttft: 2.1
     context: 1048576
-    thinking: low→max
+    thinking: low,high,max
 `
 
 func catalogWithOx(t *testing.T) *catalog {
@@ -1179,7 +1179,7 @@ func TestOxLadderGatesLanes(t *testing.T) {
 		t.Errorf("base catalog serves %d lanes, want %d: %v", len(got), len(genBaseLanes), got)
 	}
 	withOx := catalogWithOx(t)
-	want := append(append([]string{}, genBaseLanes...), "ox-only", "ox-led")
+	want := append(append([]string{}, genBaseLanes...), "ox-only", "ox-led", "ox-lean")
 	if got := withOx.lanes(); strings.Join(got, ",") != strings.Join(want, ",") {
 		t.Errorf("ox catalog serves %v, want %v", got, want)
 	}
@@ -1203,9 +1203,11 @@ func TestGenValidOxLanes(t *testing.T) {
 		{"ox-only", true, false, false, false}, // no O drain bucket to lead with
 		{"ox-only", false, true, false, false}, // no A elite on a pure ox lane
 		{"ox-led", false, false, false, true},
-		{"ox-led", true, false, false, false}, // utility already lives on the free pool
-		{"ox-led", false, true, false, true},  // fable leads the deliberative roles
-		{"ox-led", false, true, true, false},  // fable-as-main defeats the free worker
+		{"ox-led", false, true, true, false}, // fable-as-main defeats the free worker
+		{"ox-lean", false, false, false, true},
+		{"ox-lean", true, false, false, false}, // utility is ox here; spark has nothing to drain
+		{"ox-lean", false, true, false, true},  // deliberative roles stay Claude; fable may lead them
+		{"ox-lean", false, true, true, true},   // fable-as-default is exactly what lean is for
 	} {
 		if got := genValid(tc.lane, tc.spark, tc.fable, tc.main_); got != tc.want {
 			t.Errorf("genValid(%s, sp=%v, fa=%v, famain=%v) = %v, want %v",
@@ -1250,6 +1252,41 @@ func TestOxLaneRoutingPolicy(t *testing.T) {
 	}
 }
 
+// ox-lean is ox-led's mirror: paid providers answer for the work, the free
+// pool absorbs the background. Fable-as-main is allowed — handing the default
+// seat to the elite is exactly what an operator on this lane may want.
+func TestOxLeanRoutingPolicy(t *testing.T) {
+	c := catalogWithOx(t)
+	combo := c.genCombo("ox-lean", "smart", "high", false, true, true)
+	// fable-as-main hands only the default seat to the elite; task and
+	// librarian follow the lane's OpenAI primary.
+	for _, r := range []string{"task", "librarian"} {
+		if pool := c.models[combo[r].lead].Pool; pool != "O" {
+			t.Errorf("ox-lean %s lead pool = %s, want O", r, pool)
+		}
+	}
+	if id := c.models[combo["default"].lead].ID; id != "claude-fable-5" {
+		t.Errorf("ox-lean famain default = %s, want claude-fable-5", id)
+	}
+	for _, r := range []string{"scout", "sonic", "smol", "tiny", "commit", "vision"} {
+		if id := c.models[combo[r].lead].ID; id != "stealth/ox-alpha" {
+			t.Errorf("ox-lean %s lead = %s, want stealth/ox-alpha", r, id)
+		}
+	}
+	for _, r := range []string{"plan", "slow", "designer", "reviewer"} {
+		if pool := c.models[combo[r].lead].Pool; pool != "A" {
+			t.Errorf("ox-lean deliberative %s pool = %s, want A", r, pool)
+		}
+	}
+	// Without fable, workers stay on the OpenAI primary.
+	base := c.genCombo("ox-lean", "normal", "medium", false, false, false)
+	for _, r := range []string{"default", "task"} {
+		if pool := c.models[base[r].lead].Pool; pool != "O" {
+			t.Errorf("ox-lean %s pool = %s, want O", r, pool)
+		}
+	}
+}
+
 func TestAdvisorsIncludeOxContext(t *testing.T) {
 	withOx := catalogWithOx(t)
 	got := withOx.renderAdvisors()
diff --git a/main.go b/main.go
index d3d4c32..9fa8182 100644
--- a/main.go
+++ b/main.go
@@ -989,7 +989,7 @@ func facetDefs(glyphs map[string]string) []facet {
 	return []facet{
 		// The ox values are trimmed away by applyCatalog unless the catalog
 		// serves them — presence in models.yml is what makes them appear.
-		{"lane", []string{"gpt-only", "gpt-led", "mixed", "claude-led", "claude-only", "ox-only", "ox-led"}, glyphs["lane"]},
+		{"lane", []string{"gpt-only", "gpt-led", "mixed", "claude-led", "claude-only", "ox-only", "ox-led", "ox-lean"}, glyphs["lane"]},
 		{"model", []string{"fast", "normal", "smart"}, glyphs["model"]},
 		{"thinking", []string{"minimal", "low", "medium", "high", "xhigh", "max"}, glyphs["thinking"]},
 		// advisor as a power/cost dial: a quick glance, a proper review, or a
@@ -1226,12 +1226,18 @@ func (m model) meter(label, glyph, fill string, n int) string {
 // from the baked __advisors__ table. The advisor is the independent second
 // opinion, so it uses the opposite provider to whoever leads the session: GPT
 // when the lead is Claude — a Claude-led (or pure-GPT) lane, or fable-as-main
-// handing the default role to Fable — and Claude otherwise. Only the pure lanes
-// stay on their own provider (gpt-only keeps GPT; claude-only keeps Claude).
+// handing the default role to Fable — and Claude otherwise. Pure lanes keep
+// their own provider, including the ox lane: ox-only's second opinion is Ox.
+//
+// On the mixed ox lanes the chain carries a cross-pool net in spend order —
+// the other paid pool's cheapest rung, then the free pool itself — so a dead
+// quota never leaves the second eye blind.
 func (m model) advisorChain(level string) []string {
 	lane := m.sel["lane"]
 	ctx := "claude"
-	if lane == "gpt-only" || lane == "claude-led" {
+	if lane == "ox-only" {
+		ctx = "ox"
+	} else if lane == "gpt-only" || lane == "claude-led" {
 		ctx = "gpt"
 	}
 	// fable-as-main puts Claude Fable in the default seat, so the second
@@ -1240,7 +1246,26 @@ func (m model) advisorChain(level string) []string {
 	if lane != "claude-only" && m.sel["fable"] == "on" && m.sel["main"] == "on" {
 		ctx = "gpt"
 	}
-	return m.advisors[level+"/"+ctx]
+	chain := m.advisors[level+"/"+ctx]
+	if lane == "ox-led" || lane == "ox-lean" {
+		tail := m.advisors["glance/gpt"]
+		if ctx == "gpt" {
+			tail = m.advisors["glance/claude"]
+		}
+		for _, t := range append(append([]string{}, tail...), m.advisors["glance/ox"]...) {
+			dup := false
+			for _, c := range chain {
+				if c == t {
+					dup = true
+					break
+				}
+			}
+			if !dup && t != "" {
+				chain = append(chain, t)
+			}
+		}
+	}
+	return chain
 }
 
 // roleOf returns the role name of a routing row ("● task" → "task").
@@ -1314,6 +1339,9 @@ func (m model) visibleFacets() []facet {
 		if lane == "ox-led" && (f.key == "spark" || f.key == "main" || f.key == "fast") {
 			continue
 		}
+		if lane == "ox-lean" && (f.key == "spark") {
+			continue
+		}
 		if f.key == "spark" && m.noSpark {
 			continue
 		}
@@ -1334,7 +1362,7 @@ func comboID(sel map[string]string) string {
 	if lane == "gpt-only" || lane == "ox-only" {
 		fb = "off"
 	}
-	if lane == "claude-only" || lane == "ox-only" || lane == "ox-led" {
+	if lane == "claude-only" || lane == "ox-only" || lane == "ox-led" || lane == "ox-lean" {
 		sp = "off"
 	}
 	spid, faid := "nosp", "nofa"
@@ -1437,6 +1465,8 @@ func laneColor(lane string) string {
 		return "#1f9d5b" // deeper green — pure free pool
 	case "ox-led":
 		return "#5fce96" // lighter green — leans Ox Alpha
+	case "ox-lean":
+		return "#2dd4bf" // teal — paid work riding the free pool
 	case "gpt-only":
 		return "#3f8ef0" // deeper blue — pure pool
 	case "gpt-led":
@@ -1455,7 +1485,13 @@ func laneColor(lane string) string {
 // through. The catalog's pool column is authoritative; the name heuristic is
 // only for catalogs that predate it.
 func (m model) prefixed(model string) string {
-	if f, ok := m.facts[model]; ok && f.pool != "" {
+	// Routing tokens carry a thinking level ("id:level"); the catalog is
+	// keyed on the bare id. Qualify the full token either way.
+	id := model
+	if i := strings.IndexByte(id, ':'); i >= 0 {
+		id = id[:i]
+	}
+	if f, ok := m.facts[id]; ok && f.pool != "" {
 		switch f.pool {
 		case "O":
 			return "openai-codex/" + model
@@ -2000,8 +2036,8 @@ func (m model) listW() int {
 	}
 	// The ox lanes widen the lane row past this function's old 80-cell
 	// aesthetic cap; a wider list beats clipping dial options mid-value.
-	if w > 104 {
-		w = 104
+	if w > 116 {
+		w = 116
 	}
 	return w
 }
diff --git a/main_test.go b/main_test.go
index d8fd1b4..d42fe81 100644
--- a/main_test.go
+++ b/main_test.go
@@ -3705,3 +3705,54 @@ func TestTrimLanesResetsVanishedLane(t *testing.T) {
 		t.Errorf("selection left on vanished lane: %q", m.sel["lane"])
 	}
 }
+
+// The launch path prefixes tokens that still carry their thinking level
+// ("id:level"); the facts table is keyed on the bare id. This regresses the
+// bug where ox ids missed the pool lookup and fell to the two-provider name
+// heuristic — openai-codex/stealth/ox-alpha is not a model omp knows.
+func TestPrefixedLeveledTokens(t *testing.T) {
+	m := model{facts: map[string]modelFact{
+		"stealth/ox-alpha": {pool: "R"},
+	}}
+	if got := m.prefixed("stealth/ox-alpha:high"); got != "openrouter/stealth/ox-alpha:high" {
+		t.Fatalf("prefixed(leveled) = %q, want openrouter/stealth/ox-alpha:high", got)
+	}
+}
+
+// End to end: the emitted config must qualify every reference with the
+// catalog's pool, and the ox-led advisor must carry its cross-pool net
+// (Claude lead, GPT glance rung, then the free pool) instead of a bare lead.
+func TestGenConfigYAMLOxLed(t *testing.T) {
+	blocks := loadBlocks("/tmp/grid-ox.plain")
+	if len(blocks) == 0 {
+		t.Skip("regeneration fixture /tmp/grid-ox.plain absent")
+	}
+	m := model{
+		generated: blocks,
+		advisors:  parseAdvisors(blocks["__advisors__"]),
+		facts:     parseFacts(blocks["__models__"]),
+		glyphs:    defaultGlyphs(),
+		facets:    facetDefs(defaultGlyphs()),
+		sel: map[string]string{"lane": "ox-led", "model": "smart", "thinking": "high",
+			"advisor": "glance", "spark": "off", "fable": "off", "main": "off", "fast": "off"},
+	}
+	cfg := m.genConfigYAML()
+	if strings.Contains(cfg, "openai-codex/stealth") || strings.Contains(cfg, "anthropic/stealth") {
+		t.Errorf("heuristic prefix leaked onto ox ids:\n%s", cfg)
+	}
+	if !strings.Contains(cfg, "openrouter/stealth/ox-alpha:") {
+		t.Errorf("no pool-qualified ox reference:\n%s", cfg)
+	}
+	adv := m.applyAdvisor(m.generated[comboID(m.sel)], "glance")
+	advisorRow := ""
+	for _, r := range adv {
+		if roleOf(r) == "advisor" {
+			advisorRow = r
+		}
+	}
+	for _, want := range []string{"claude-haiku-4-5:low", "gpt-5.6-luna:low", "stealth/ox-alpha:low"} {
+		if !strings.Contains(advisorRow, want) {
+			t.Errorf("advisor net missing %s in %q", want, advisorRow)
+		}
+	}
+}
diff --git a/suggest.go b/suggest.go
index 00e826e..881838f 100644
--- a/suggest.go
+++ b/suggest.go
@@ -103,7 +103,7 @@ func (m model) Commander() clikit.Commander {
 // bucket is maxed or unauthed. Runs after an applied proposal, so the generator
 // can't land on an impossible or unavailable combo.
 func (m *model) repairConstraints() {
-	if lane := m.sel["lane"]; lane == "claude-only" || lane == "ox-only" || lane == "ox-led" {
+	if lane := m.sel["lane"]; lane == "claude-only" || lane == "ox-only" || lane == "ox-led" || lane == "ox-lean" {
 		m.sel["spark"] = "off"
 	}
 	if lane := m.sel["lane"]; lane == "gpt-only" || lane == "ox-only" {