diff --git a/internal/analyze/handler.go b/internal/analyze/handler.go
index 12b8663..83d5753 100644
--- a/internal/analyze/handler.go
+++ b/internal/analyze/handler.go
@@ -73,7 +73,7 @@ func GetGraph(ctx context.Context, cfg *config.Config, dir string, force bool) (
 
 	client := api.New(cfg)
 	spin = ui.Start("Uploading and analyzing repository…")
-	ir, err := client.AnalyzeShards(ctx, zipPath, "analyze-"+hash[:16])
+	ir, err := client.AnalyzeShards(ctx, zipPath, "analyze-"+hash[:16], nil)
 	spin.Stop()
 	if err != nil {
 		return nil, hash, err
diff --git a/internal/api/client.go b/internal/api/client.go
index cf2206c..b88a3ae 100644
--- a/internal/api/client.go
+++ b/internal/api/client.go
@@ -8,6 +8,7 @@ import (
 	"io"
 	"mime/multipart"
 	"net/http"
+	"net/url"
 	"os"
 	"path/filepath"
 	"time"
@@ -115,11 +116,26 @@ func (c *Client) pollLoop(ctx context.Context, post func() (*JobResponse, error)
 	return job, nil
 }
 
+// PreviousDomain holds domain name + subdomain count for seeding the LLM prompt.
+type PreviousDomain struct {
+	Name           string `json:"name"`
+	SubdomainCount int    `json:"subdomainCount"`
+}
+
 // AnalyzeShards uploads a repository ZIP and runs the full analysis pipeline,
 // returning the complete ShardIR response with full Node/Relationship data
 // required for sidecar rendering (IDs, labels, properties preserved).
-func (c *Client) AnalyzeShards(ctx context.Context, zipPath, idempotencyKey string) (*ShardIR, error) {
-	job, err := c.pollUntilComplete(ctx, zipPath, idempotencyKey)
+// If previousDomains is non-nil, passes them as a query param to seed domain names.
+func (c *Client) AnalyzeShards(ctx context.Context, zipPath, idempotencyKey string, previousDomains []PreviousDomain) (*ShardIR, error) {
+	endpoint := analyzeEndpoint
+	if len(previousDomains) > 0 {
+		pd, err := json.Marshal(previousDomains)
+		if err == nil {
+			endpoint += "?previousDomains=" + url.QueryEscape(string(pd))
+		}
+	}
+	post := func() (*JobResponse, error) { return c.postZipTo(ctx, zipPath, idempotencyKey, endpoint) }
+	job, err := c.pollLoop(ctx, post)
 	if err != nil {
 		return nil, err
 	}
diff --git a/internal/shards/daemon.go b/internal/shards/daemon.go
index 1f5e425..619a33a 100644
--- a/internal/shards/daemon.go
+++ b/internal/shards/daemon.go
@@ -213,7 +213,7 @@ func (d *Daemon) fullGenerate(ctx context.Context) error {
 	}
 	defer os.Remove(zipPath)
 
-	ir, err := d.client.AnalyzeShards(ctx, zipPath, idemKey)
+	ir, err := d.client.AnalyzeShards(ctx, zipPath, idemKey, nil)
 	if err != nil {
 		return err
 	}
@@ -251,7 +251,7 @@ func (d *Daemon) incrementalUpdate(ctx context.Context, changedFiles []string) {
 	}
 	defer os.Remove(zipPath)
 
-	ir, err := d.client.AnalyzeShards(ctx, zipPath, "incremental-"+idemKey[:8])
+	ir, err := d.client.AnalyzeShards(ctx, zipPath, "incremental-"+idemKey[:8], nil)
 	if err != nil {
 		d.logf("Incremental API error: %v", err)
 		return
diff --git a/internal/shards/handler.go b/internal/shards/handler.go
index 9fd73fd..3168899 100644
--- a/internal/shards/handler.go
+++ b/internal/shards/handler.go
@@ -93,11 +93,25 @@ func Generate(ctx context.Context, cfg *config.Config, dir string, opts Generate
 	}
 	defer os.Remove(zipPath)
 
+	// Read previous domains from cache for LLM seeding (stabilizes names across refreshes)
+	var prevDomains []api.PreviousDomain
+	if data, readErr := os.ReadFile(cacheFile); readErr == nil {
+		var prev api.ShardIR
+		if json.Unmarshal(data, &prev) == nil && len(prev.Domains) > 0 {
+			for _, d := range prev.Domains {
+				prevDomains = append(prevDomains, api.PreviousDomain{
+					Name:           d.Name,
+					SubdomainCount: len(d.Subdomains),
+				})
+			}
+		}
+	}
+
 	client := api.New(cfg)
 	idemKey := newUUID()
 
 	spin = ui.Start("Uploading and analyzing repository…")
-	ir, err := client.AnalyzeShards(ctx, zipPath, "shards-"+idemKey[:8])
+	ir, err := client.AnalyzeShards(ctx, zipPath, "shards-"+idemKey[:8], prevDomains)
 	spin.Stop()
 	if err != nil {
 		return err