diff --git a/go.mod b/go.mod
index 15669c9..c1cd988 100644
--- a/go.mod
+++ b/go.mod
@@ -12,6 +12,7 @@ require (
 require (
 	forge.lthn.ai/core/go-i18n v0.1.4 // indirect
 	forge.lthn.ai/core/go-inference v0.1.4 // indirect
+	forge.lthn.ai/core/go-log v0.0.4 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	golang.org/x/text v0.35.0 // indirect
diff --git a/go.sum b/go.sum
index f958537..05c47a1 100644
--- a/go.sum
+++ b/go.sum
@@ -4,6 +4,8 @@ forge.lthn.ai/core/go-i18n v0.1.4 h1:zOHUUJDgRo88/3tj++kN+VELg/buyZ4T2OSdG3HBbLQ
 forge.lthn.ai/core/go-i18n v0.1.4/go.mod h1:aDyAfz7MMgWYgLkZCptfFmZ7jJg3ocwjEJ1WkJSvv4U=
 forge.lthn.ai/core/go-inference v0.1.4 h1:fuAgWbqsEDajHniqAKyvHYbRcBrkGEiGSqR2pfTMRY0=
 forge.lthn.ai/core/go-inference v0.1.4/go.mod h1:jfWz+IJX55wAH98+ic6FEqqGB6/P31CHlg7VY7pxREw=
+forge.lthn.ai/core/go-log v0.0.4 h1:KTuCEPgFmuM8KJfnyQ8vPOU1Jg654W74h8IJvfQMfv0=
+forge.lthn.ai/core/go-log v0.0.4/go.mod h1:r14MXKOD3LF/sI8XUJQhRk/SZHBE7jAFVuCfgkXoZPw=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
diff --git a/pkg/help/catalog.go b/pkg/help/catalog.go
index 93b6591..349dc26 100644
--- a/pkg/help/catalog.go
+++ b/pkg/help/catalog.go
@@ -1,7 +1,6 @@
 package help
 
 import (
-	"fmt"
 	"io/fs"
 	"iter"
 	"maps"
@@ -9,6 +8,8 @@ import (
 	"path/filepath"
 	"slices"
 	"strings"
+
+	log "forge.lthn.ai/core/go-log"
 )
 
 // Catalog manages help topics.
@@ -114,19 +115,19 @@ func LoadContentDir(dir string) (*Catalog, error) {
 
 		content, err := os.ReadFile(path)
 		if err != nil {
-			return fmt.Errorf("reading %s: %w", path, err)
+			return log.E("catalog.LoadContentDir", "reading "+path, err)
 		}
 
 		topic, err := ParseTopic(path, content)
 		if err != nil {
-			return fmt.Errorf("parsing %s: %w", path, err)
+			return log.E("catalog.LoadContentDir", "parsing "+path, err)
 		}
 
 		c.Add(topic)
 		return nil
 	})
 	if err != nil {
-		return nil, fmt.Errorf("walking directory %s: %w", dir, err)
+		return nil, log.E("catalog.LoadContentDir", "walking directory "+dir, err)
 	}
 
 	return c, nil
@@ -136,7 +137,7 @@ func LoadContentDir(dir string) (*Catalog, error) {
 func (c *Catalog) Get(id string) (*Topic, error) {
 	t, ok := c.topics[id]
 	if !ok {
-		return nil, fmt.Errorf("topic not found: %s", id)
+		return nil, log.E("catalog.Get", "topic not found: "+id, nil)
 	}
 	return t, nil
 }