diff --git a/go.mod b/go.mod
index 86d727d..bf9cf8d 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module git.sunturtle.xyz/zephyr/horsebot
 go 1.24.1
 
 require (
-	git.sunturtle.xyz/zephyr/horse v0.0.0-20260116044610-b0c555f547e4
+	git.sunturtle.xyz/zephyr/horse v0.0.0-20260117030110-cb1c51db05bb
 	github.com/disgoorg/disgo v0.19.0-rc.15
 )
 
diff --git a/go.sum b/go.sum
index a1d53fe..1af5fb5 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,9 @@
 git.sunturtle.xyz/zephyr/horse v0.0.0-20260116044610-b0c555f547e4 h1:YJEGZG/EnxE5Tr6EZMGxikXDF6QKKHrH9Bp1dLoWXkk=
 git.sunturtle.xyz/zephyr/horse v0.0.0-20260116044610-b0c555f547e4/go.mod h1:qGXO/93EfCOI1oGSLqrRkPDF/EAdsgLNZJjRKx+i4Lk=
+git.sunturtle.xyz/zephyr/horse v0.0.0-20260117022630-19fb713aaa10 h1:soAAeJR/omxESc0ne1ItNxTpTv7ahyr4HbjU3PjEIvM=
+git.sunturtle.xyz/zephyr/horse v0.0.0-20260117022630-19fb713aaa10/go.mod h1:qGXO/93EfCOI1oGSLqrRkPDF/EAdsgLNZJjRKx+i4Lk=
+git.sunturtle.xyz/zephyr/horse v0.0.0-20260117030110-cb1c51db05bb h1:iFPbu8i9sRakUnvRX9UzBd/RsVQkf6Nn3sOG/8F6QKM=
+git.sunturtle.xyz/zephyr/horse v0.0.0-20260117030110-cb1c51db05bb/go.mod h1:qGXO/93EfCOI1oGSLqrRkPDF/EAdsgLNZJjRKx+i4Lk=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/disgoorg/disgo v0.19.0-rc.15 h1:x0NsV2gcbdjwuztsg2wYXw76p1Cpc8f6ByDrkPcfQtU=
diff --git a/main.go b/main.go
index 117f7f7..9c8fde2 100644
--- a/main.go
+++ b/main.go
@@ -48,7 +48,7 @@ func main() {
 	r.Route("/skill", func(r handler.Router) {
 		r.SlashCommand("/", skillHandler)
 		r.Autocomplete("/", skillAutocomplete)
-		// TODO(zeph): button handler
+		r.ButtonComponent("/{id}", skillButton)
 	})
 
 	slog.Info("connect", slog.String("disgo", disgo.Version))
@@ -94,15 +94,14 @@ var commands = []discord.ApplicationCommandCreate{
 func skillHandler(data discord.SlashCommandInteractionData, e *handler.CommandEvent) error {
 	q := data.String("query")
 	id, err := strconv.ParseInt(q, 10, 32)
-	var s horse.Skill
 	if err == nil {
 		// note inverted condition; this is when we have an id
-		s = global.AllSkills[horse.SkillID(id)]
+		id = int64(global.AllSkills[horse.SkillID(id)].ID)
 	}
-	if s.ID == 0 {
+	if id == 0 {
 		// Either we weren't given a number or the number doesn't match any skill ID.
-		id, ok := global.SkillNameToID[q]
-		if !ok {
+		v := global.SkillNameToID[q]
+		if v == 0 {
 			// No such skill.
 			m := discord.MessageCreate{
 				Content: "No such skill.",
@@ -110,11 +109,11 @@ func skillHandler(data discord.SlashCommandInteractionData, e *handler.CommandEv
 			}
 			return e.CreateMessage(m)
 		}
-		s = global.AllSkills[id]
+		id = int64(v)
 	}
 	// TODO(zeph): search conditions and effects, give a list
 	m := discord.MessageCreate{
-		Components: []discord.LayoutComponent{RenderSkill(s)},
+		Components: []discord.LayoutComponent{RenderSkill(horse.SkillID(id), global.AllSkills, global.SkillGroups)},
 		Flags:      discord.MessageFlagIsComponentsV2,
 	}
 	return e.CreateMessage(m)
@@ -133,3 +132,18 @@ func skillAutocomplete(e *handler.AutocompleteEvent) error {
 	}
 	return e.AutocompleteResult(r)
 }
+
+func skillButton(data discord.ButtonInteractionData, e *handler.ComponentEvent) error {
+	id, err := strconv.ParseInt(e.Vars["id"], 10, 32)
+	if err != nil {
+		m := discord.MessageCreate{
+			Content: "That button produced an invalid skill ID. That's not supposed to happen.",
+			Flags:   discord.MessageFlagEphemeral,
+		}
+		return e.CreateMessage(m)
+	}
+	m := discord.MessageUpdate{
+		Components: &[]discord.LayoutComponent{RenderSkill(horse.SkillID(id), global.AllSkills, global.SkillGroups)},
+	}
+	return e.UpdateMessage(m)
+}
diff --git a/skill.go b/skill.go
index 251ea10..4b051b6 100644
--- a/skill.go
+++ b/skill.go
@@ -8,7 +8,11 @@ import (
 	"github.com/disgoorg/disgo/discord"
 )
 
-func RenderSkill(s horse.Skill) discord.ContainerComponent {
+func RenderSkill(id horse.SkillID, all map[horse.SkillID]horse.Skill, groups map[int32][4]horse.SkillID) discord.ContainerComponent {
+	s, ok := all[id]
+	if !ok {
+		return discord.NewContainer(discord.NewTextDisplayf("invalid skill ID %v made it to RenderSkill", id))
+	}
 	skilltype := discord.TextDisplayComponent{
 		ID:      4,
 		Content: "Skill Issue",
@@ -90,7 +94,19 @@ func RenderSkill(s horse.Skill) discord.ContainerComponent {
 		ID:      51,
 		Content: fmt.Sprintf("SP cost %d. Grade value %d.", s.SPCost, s.GradeValue),
 	})
-	// TODO(zeph): related skills, use a row of buttons with skill numbers for the ids and edit the message when clicked?
+	rel := make([]horse.Skill, 0, 4)
+	for _, id := range groups[s.Group] {
+		if id != 0 {
+			rel = append(rel, all[id])
+		}
+	}
+	if len(rel) > 1 {
+		buttons := make([]discord.InteractiveComponent, 0, 4)
+		for _, rs := range rel {
+			buttons = append(buttons, discord.NewButton(discord.ButtonStyleSecondary, rs.Name, fmt.Sprintf("/skill/%d", rs.ID), "", 0))
+		}
+		r.Components = append(r.Components, discord.NewActionRow(buttons...))
+	}
 	return r
 }