diff --git a/bot/bot.go b/bot/bot.go
index c34bf66..de23c68 100644
--- a/bot/bot.go
+++ b/bot/bot.go
@@ -1,6 +1,8 @@
 package bot
 
 import (
+	"regexp"
+
 	_ "github.com/mattn/go-sqlite3"
 	"golang.org/x/exp/slog"
 	"maunium.net/go/mautrix"
@@ -27,6 +29,7 @@ type Bot struct {
 	cryptoHelper *cryptohelper.CryptoHelper
 	kagiCient    *Kagi
 	logger       *slog.Logger
+	messages     map[string]string
 }
 
 func NewBot(cfg MatrixConfig, kagi *Kagi, logger *slog.Logger) *Bot {
@@ -34,6 +37,7 @@ func NewBot(cfg MatrixConfig, kagi *Kagi, logger *slog.Logger) *Bot {
 		config:    cfg,
 		kagiCient: kagi,
 		logger:    logger,
+		messages:  make(map[string]string),
 	}
 }
 
@@ -62,7 +66,8 @@ func (m *Bot) Init() error {
 	if m.config.AcceptInvites {
 		m.AddEventHandler(m.InviteHandler())
 	}
-	m.AddEventHandler(m.ResponseHandler())
+	m.AddEventHandler(m.ReactionHandler())
+	m.AddEventHandler(m.MessageHandler())
 
 	return nil
 }
@@ -105,8 +110,8 @@ func (m *Bot) InviteHandler() (event.Type, mautrix.EventHandler) {
 	}
 }
 
-func (m *Bot) ResponseHandler() (event.Type, mautrix.EventHandler) {
-	return event.EventReaction, func(source mautrix.EventSource, evt *event.Event) {
+func (m *Bot) MessageHandler() (event.Type, mautrix.EventHandler) {
+	return event.EventMessage, func(source mautrix.EventSource, evt *event.Event) {
 		content := evt.Content.AsMessage()
 		eventID := evt.ID
 		m.logger.Info("received message", slog.String("content", content.Body))
@@ -115,23 +120,53 @@ func (m *Bot) ResponseHandler() (event.Type, mautrix.EventHandler) {
 			m.logger.Info("message sent by bot itself, ignoring", slog.String("event_id", eventID.String()))
 			return
 		}
+		url, ok := findFirstURL(content.Body)
+		if !ok {
+			m.logger.Info("message does not contain url, ignoring", slog.String("event_id", eventID.String()))
+			return
+		}
+		m.messages[eventID.String()] = url
+		m.logger.Info("saved url", slog.String("event_id", eventID.String()), slog.String("url", url))
+	}
+}
 
-		// get reply from GPT
-		//reply, err := m.gptClient.Complete(conv)
-		//if err != nil {
-		//	m.logger.Error("failed to get reply from openai", slog.String("err", err.Error()), slog.String("bot", m.config.UserDisplayName))
-		//	return
-		//}
+func (m *Bot) ReactionHandler() (event.Type, mautrix.EventHandler) {
+	return event.EventReaction, func(source mautrix.EventSource, evt *event.Event) {
+		eventID := evt.ID
+		// ignore if the message is sent by the bot itself
+		if evt.Sender == id.UserID(m.config.UserID) {
+			m.logger.Info("message sent by bot itself, ignoring", slog.String("event_id", eventID.String()))
+			return
+		}
+		rel := evt.Content.AsReaction().GetRelatesTo()
+		relID := rel.GetAnnotationID()
+		relKey := rel.GetAnnotationKey()
+		m.logger.Info("received reaction", slog.String("event_id", eventID.String()), slog.String("rel_id", relID.String()), slog.String("rel_key", relKey))
+		if relKey != `🗒️` {
+			m.logger.Info("reaction is not 🗒️, ignoring", slog.String("event_id", eventID.String()))
+			return
+		}
 
-		reply := "the summary"
+		wantedURL, ok := m.messages[relID.String()]
+		if !ok {
+			m.logger.Info("referenced message is not known or does not contain url, ignoring", slog.String("event_id", eventID.String()))
+			return
+		}
+
+		summary, err := m.kagiCient.Summarize(wantedURL)
+		if err != nil {
+			m.logger.Error("failed to summarize", slog.String("err", err.Error()))
+			return
+		}
+
+		reply := summary
 		formattedReply := format.RenderMarkdown(reply, true, false)
 		formattedReply.RelatesTo = &event.RelatesTo{
 			InReplyTo: &event.InReplyTo{
-				EventID: eventID,
+				EventID: relID,
 			},
 		}
-		_, err := m.client.SendMessageEvent(evt.RoomID, event.EventMessage, &formattedReply)
-		if err != nil {
+		if _, err := m.client.SendMessageEvent(evt.RoomID, event.EventMessage, &formattedReply); err != nil {
 			m.logger.Error("failed to send message", slog.String("err", err.Error()))
 			return
 		}
@@ -139,6 +174,15 @@ func (m *Bot) ResponseHandler() (event.Type, mautrix.EventHandler) {
 		if len(reply) > 30 {
 			reply = reply[:30] + "..."
 		}
-		m.logger.Info("sent reply", slog.String("parent_id", eventID.String()), slog.String("content", reply))
+		m.logger.Info("sent reply", slog.String("parent_id", eventID.String()), slog.String("msg", reply))
 	}
 }
+
+func findFirstURL(s string) (string, bool) {
+	re := regexp.MustCompile(`https?\:\/\/[^ \)]*`)
+	match := re.FindString(s)
+	if match == "" {
+		return "", false
+	}
+	return match, true
+}
diff --git a/bot/kagi.go b/bot/kagi.go
index 16d2b1d..4379542 100644
--- a/bot/kagi.go
+++ b/bot/kagi.go
@@ -1,6 +1,7 @@
 package bot
 
 import (
+	"encoding/json"
 	"fmt"
 	"io"
 	"net/http"
@@ -26,7 +27,6 @@ func NewKagi(baseURL, apiKey string) *Kagi {
 
 func (k *Kagi) Summarize(sumURL string) (string, error) {
 	queryURL := fmt.Sprintf("%s/summarize?engine=muriel&url=%s", k.baseURL, url.QueryEscape(sumURL))
-	//queryURL = ""
 	req, err := http.NewRequest("GET", queryURL, nil)
 	if err != nil {
 		return "", err
@@ -37,7 +37,6 @@ func (k *Kagi) Summarize(sumURL string) (string, error) {
 	if err != nil {
 		return "", err
 	}
-	fmt.Println(res.Status)
 
 	resBody, err := io.ReadAll(res.Body)
 	if err != nil {
@@ -45,7 +44,14 @@ func (k *Kagi) Summarize(sumURL string) (string, error) {
 	}
 	defer res.Body.Close()
 
-	fmt.Sprintf("response: %v", string(resBody))
+	resp := struct {
+		Data struct {
+			Output string
+		}
+	}{}
+	if err := json.Unmarshal(resBody, &resp); err != nil {
+		return "", err
+	}
 
-	return string(resBody), nil
+	return resp.Data.Output, nil
 }
diff --git a/go.mod b/go.mod
index ba50f9f..9ac40a1 100644
--- a/go.mod
+++ b/go.mod
@@ -2,10 +2,15 @@ module ewintr.nl/matrix-kagisum
 
 go 1.20
 
+require (
+	github.com/mattn/go-sqlite3 v1.14.17
+	golang.org/x/exp v0.0.0-20230522175609-2e198f4a06a1
+	maunium.net/go/mautrix v0.15.3
+)
+
 require (
 	github.com/mattn/go-colorable v0.1.12 // indirect
 	github.com/mattn/go-isatty v0.0.14 // indirect
-	github.com/mattn/go-sqlite3 v1.14.17 // indirect
 	github.com/rs/zerolog v1.29.1 // indirect
 	github.com/tidwall/gjson v1.14.4 // indirect
 	github.com/tidwall/match v1.1.1 // indirect
@@ -13,9 +18,7 @@ require (
 	github.com/tidwall/sjson v1.2.5 // indirect
 	github.com/yuin/goldmark v1.5.4 // indirect
 	golang.org/x/crypto v0.10.0 // indirect
-	golang.org/x/exp v0.0.0-20230522175609-2e198f4a06a1 // indirect
 	golang.org/x/net v0.11.0 // indirect
 	golang.org/x/sys v0.9.0 // indirect
 	maunium.net/go/maulogger/v2 v2.4.1 // indirect
-	maunium.net/go/mautrix v0.15.3 // indirect
 )
diff --git a/go.sum b/go.sum
index 42e77a0..813166e 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,6 @@
+github.com/DATA-DOG/go-sqlmock v1.5.0 h1:Shsta01QNfFxHCfpW6YH2STWB0MudeXXEWMr20OEh60=
 github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 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/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/mattn/go-colorable v0.1.12 h1:jF+Du6AlPIjs2BiUiQlKOX0rt3SujHxPnksPKZbaA40=
 github.com/mattn/go-colorable v0.1.12/go.mod h1:u5H1YNBxpqRaxsYJYSkiCWKzEfiAb1Gb520KVy5xxl4=
@@ -10,12 +10,10 @@ github.com/mattn/go-sqlite3 v1.14.17 h1:mCRHCLDUBXgpKAqIKsaAaAsrAlbkeomtRFKXh2L6
 github.com/mattn/go-sqlite3 v1.14.17/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rs/xid v1.4.0/go.mod h1:trrq9SKmegXys3aeAKXMUTdJsYXVwGY3RLcfgqegfbg=
 github.com/rs/zerolog v1.29.1 h1:cO+d60CHkknCbvzEWxP0S9K6KqyTjrCNUy1LdQLCGPc=
 github.com/rs/zerolog v1.29.1/go.mod h1:Le6ESbR7hc+DP6Lt1THiV8CQSdkkNrd3R0XbEgp3ZBU=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
-github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/tidwall/gjson v1.14.2/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
 github.com/tidwall/gjson v1.14.4 h1:uo0p8EbA09J7RQaflQ1aBRffTR7xedD2bcIVSYxLnkM=
 github.com/tidwall/gjson v1.14.4/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
@@ -38,7 +36,6 @@ golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.9.0 h1:KS/R3tvhPqvJvwcKfnBHJwwthS11LRhmM5D59eEXa0s=
 golang.org/x/sys v0.9.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 maunium.net/go/maulogger/v2 v2.4.1 h1:N7zSdd0mZkB2m2JtFUsiGTQQAdP0YeFWT7YMc80yAL8=
 maunium.net/go/maulogger/v2 v2.4.1/go.mod h1:omPuYwYBILeVQobz8uO3XC8DIRuEb5rXYlQSuqrbCho=
 maunium.net/go/mautrix v0.15.3 h1:C9BHSUM0gYbuZmAtopuLjIcH5XHLb/ZjTEz7nN+0jN0=