diff --git a/clients/go/officeconvertclient/client.go b/clients/go/officeconvertclient/client.go
index a02f14c..76398e1 100644
--- a/clients/go/officeconvertclient/client.go
+++ b/clients/go/officeconvertclient/client.go
@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"connectrpc.com/connect"
+	"github.com/segmentio/ksuid"
 	officeconvertapiv1 "gitea.auvem.com/end-internal/officeconvert/gen/go/officeconvertapi/v1"
 	"gitea.auvem.com/end-internal/officeconvert/gen/go/officeconvertapi/v1/officeconvertapiv1connect"
 )
@@ -47,7 +48,7 @@ func (c *Client) CreateConversion(
 	ctx context.Context,
 	sourceFilename string,
 	resolution officeconvertapiv1.ConversionResolution,
-) (*officeconvertapiv1.CreateConversionResponse, error) {
+) (*CreateConversionResponse, error) {
 	req := connect.NewRequest(&officeconvertapiv1.CreateConversionRequest{
 		SourceFilename: sourceFilename,
 		Resolution:     resolution,
@@ -56,46 +57,46 @@ func (c *Client) CreateConversion(
 	if err != nil {
 		return nil, err
 	}
-	return res.Msg, nil
+	return augmentCreateConversionResponse(res.Msg)
 }
 
 // StartConversion signals that upload is complete and conversion can begin.
 func (c *Client) StartConversion(
 	ctx context.Context,
-	conversionID string,
-) (*officeconvertapiv1.StartConversionResponse, error) {
+	id ksuid.KSUID,
+) (*StartConversionResponse, error) {
 	req := connect.NewRequest(&officeconvertapiv1.StartConversionRequest{
-		ConversionId: conversionID,
+		ConversionId: id.String(),
 	})
 	res, err := c.rpc.StartConversion(ctx, req)
 	if err != nil {
 		return nil, err
 	}
-	return res.Msg, nil
+	return augmentStartConversionResponse(res.Msg)
 }
 
 // GetConversionStatus returns the latest status for a conversion session.
 func (c *Client) GetConversionStatus(
 	ctx context.Context,
-	conversionID string,
-) (*officeconvertapiv1.GetConversionStatusResponse, error) {
+	id ksuid.KSUID,
+) (*GetConversionStatusResponse, error) {
 	req := connect.NewRequest(&officeconvertapiv1.GetConversionStatusRequest{
-		ConversionId: conversionID,
+		ConversionId: id.String(),
 	})
 	res, err := c.rpc.GetConversionStatus(ctx, req)
 	if err != nil {
 		return nil, err
 	}
-	return res.Msg, nil
+	return augmentGetConversionStatusResponse(res.Msg)
 }
 
 // GetSlideDeck retrieves the final converted deck response.
 func (c *Client) GetSlideDeck(
 	ctx context.Context,
-	conversionID string,
+	id ksuid.KSUID,
 ) (*officeconvertapiv1.GetSlideDeckResponse, error) {
 	req := connect.NewRequest(&officeconvertapiv1.GetSlideDeckRequest{
-		ConversionId: conversionID,
+		ConversionId: id.String(),
 	})
 	res, err := c.rpc.GetSlideDeck(ctx, req)
 	if err != nil {
@@ -107,28 +108,28 @@ func (c *Client) GetSlideDeck(
 // DeleteConversion triggers immediate resource cleanup for a session.
 func (c *Client) DeleteConversion(
 	ctx context.Context,
-	conversionID string,
-) (*officeconvertapiv1.DeleteConversionResponse, error) {
+	id ksuid.KSUID,
+) (*DeleteConversionResponse, error) {
 	req := connect.NewRequest(&officeconvertapiv1.DeleteConversionRequest{
-		ConversionId: conversionID,
+		ConversionId: id.String(),
 	})
 	res, err := c.rpc.DeleteConversion(ctx, req)
 	if err != nil {
 		return nil, err
 	}
-	return res.Msg, nil
+	return augmentDeleteConversionResponse(res.Msg)
 }
 
 // WaitForCompletion polls status until terminal completion or context cancellation.
 func (c *Client) WaitForCompletion(
 	ctx context.Context,
-	conversionID string,
-) (*officeconvertapiv1.GetConversionStatusResponse, error) {
+	id ksuid.KSUID,
+) (*GetConversionStatusResponse, error) {
 	ticker := time.NewTicker(c.pollInterval)
 	defer ticker.Stop()
 
 	for {
-		status, err := c.GetConversionStatus(ctx, conversionID)
+		status, err := c.GetConversionStatus(ctx, id)
 		if err != nil {
 			return nil, err
 		}
diff --git a/clients/go/officeconvertclient/orchestrate.go b/clients/go/officeconvertclient/orchestrate.go
index 2882dc9..87e7ab7 100644
--- a/clients/go/officeconvertclient/orchestrate.go
+++ b/clients/go/officeconvertclient/orchestrate.go
@@ -10,7 +10,7 @@ import (
 
 // ConversionResult groups the terminal status and deck payload for one conversion.
 type ConversionResult struct {
-	Status *officeconvertapiv1.GetConversionStatusResponse
+	Status *GetConversionStatusResponse
 	Deck   *officeconvertapiv1.SlideDeck
 }
 
@@ -29,15 +29,15 @@ func (c *Client) ConvertPPTXFile(ctx context.Context, localPPTXPath string) (*Co
 		return nil, err
 	}
 
-	if _, err := c.StartConversion(ctx, createRes.ConversionId); err != nil {
+	if _, err := c.StartConversion(ctx, createRes.ConversionKSUID); err != nil {
 		return nil, fmt.Errorf("start conversion: %w", err)
 	}
 
-	statusRes, err := c.WaitForCompletion(ctx, createRes.ConversionId)
+	statusRes, err := c.WaitForCompletion(ctx, createRes.ConversionKSUID)
 	if err != nil {
 		return nil, fmt.Errorf("wait for completion: %w", err)
 	}
-	deckRes, err := c.GetSlideDeck(ctx, createRes.ConversionId)
+	deckRes, err := c.GetSlideDeck(ctx, createRes.ConversionKSUID)
 	if err != nil {
 		return nil, fmt.Errorf("get slide deck: %w", err)
 	}
diff --git a/clients/go/officeconvertclient/types.go b/clients/go/officeconvertclient/types.go
new file mode 100644
index 0000000..58abefa
--- /dev/null
+++ b/clients/go/officeconvertclient/types.go
@@ -0,0 +1,83 @@
+package officeconvertclient
+
+import (
+	"fmt"
+
+	"github.com/segmentio/ksuid"
+	officeconvertapiv1 "gitea.auvem.com/end-internal/officeconvert/gen/go/officeconvertapi/v1"
+)
+
+// CreateConversionResponse embeds the API message and adds a parsed KSUID alongside the wire ConversionId string.
+type CreateConversionResponse struct {
+	*officeconvertapiv1.CreateConversionResponse
+	ConversionKSUID ksuid.KSUID
+}
+
+// StartConversionResponse embeds the API message and adds a parsed KSUID alongside the wire ConversionId string.
+type StartConversionResponse struct {
+	*officeconvertapiv1.StartConversionResponse
+	ConversionKSUID ksuid.KSUID
+}
+
+// GetConversionStatusResponse embeds the API message and adds a parsed KSUID alongside the wire ConversionId string.
+type GetConversionStatusResponse struct {
+	*officeconvertapiv1.GetConversionStatusResponse
+	ConversionKSUID ksuid.KSUID
+}
+
+// DeleteConversionResponse embeds the API message and adds a parsed KSUID alongside the wire ConversionId string.
+type DeleteConversionResponse struct {
+	*officeconvertapiv1.DeleteConversionResponse
+	ConversionKSUID ksuid.KSUID
+}
+
+func parseConversionKSUID(s string) (ksuid.KSUID, error) {
+	if s == "" {
+		return ksuid.KSUID{}, fmt.Errorf("empty conversion id")
+	}
+	return ksuid.Parse(s)
+}
+
+func augmentCreateConversionResponse(msg *officeconvertapiv1.CreateConversionResponse) (*CreateConversionResponse, error) {
+	k, err := parseConversionKSUID(msg.GetConversionId())
+	if err != nil {
+		return nil, err
+	}
+	return &CreateConversionResponse{
+		CreateConversionResponse: msg,
+		ConversionKSUID:          k,
+	}, nil
+}
+
+func augmentStartConversionResponse(msg *officeconvertapiv1.StartConversionResponse) (*StartConversionResponse, error) {
+	k, err := parseConversionKSUID(msg.GetConversionId())
+	if err != nil {
+		return nil, err
+	}
+	return &StartConversionResponse{
+		StartConversionResponse: msg,
+		ConversionKSUID:         k,
+	}, nil
+}
+
+func augmentGetConversionStatusResponse(msg *officeconvertapiv1.GetConversionStatusResponse) (*GetConversionStatusResponse, error) {
+	k, err := parseConversionKSUID(msg.GetConversionId())
+	if err != nil {
+		return nil, err
+	}
+	return &GetConversionStatusResponse{
+		GetConversionStatusResponse: msg,
+		ConversionKSUID:             k,
+	}, nil
+}
+
+func augmentDeleteConversionResponse(msg *officeconvertapiv1.DeleteConversionResponse) (*DeleteConversionResponse, error) {
+	k, err := parseConversionKSUID(msg.GetConversionId())
+	if err != nil {
+		return nil, err
+	}
+	return &DeleteConversionResponse{
+		DeleteConversionResponse: msg,
+		ConversionKSUID:          k,
+	}, nil
+}
diff --git a/go.mod b/go.mod
index f9e306a..7f58850 100644
--- a/go.mod
+++ b/go.mod
@@ -6,3 +6,5 @@ require (
 	connectrpc.com/connect v1.19.1
 	google.golang.org/protobuf v1.36.11
 )
+
+require github.com/segmentio/ksuid v1.0.4
diff --git a/go.sum b/go.sum
index 6dfa443..e971143 100644
--- a/go.sum
+++ b/go.sum
@@ -2,5 +2,7 @@ connectrpc.com/connect v1.19.1 h1:R5M57z05+90EfEvCY1b7hBxDVOUl45PrtXtAV2fOC14=
 connectrpc.com/connect v1.19.1/go.mod h1:tN20fjdGlewnSFeZxLKb0xwIZ6ozc3OQs2hTXy4du9w=
 github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
 github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
+github.com/segmentio/ksuid v1.0.4 h1:sBo2BdShXjmcugAMwjugoGUdUV0pcxY5mW4xKRn3v4c=
+github.com/segmentio/ksuid v1.0.4/go.mod h1:/XUiZBD3kVx5SmUOl55voK5yeAbBNNIed+2O73XgrPE=
 google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
 google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=