diff --git a/cmd/creator-web/chat_test.go b/cmd/creator-web/chat_test.go
index 0216595..85c9e85 100644
--- a/cmd/creator-web/chat_test.go
+++ b/cmd/creator-web/chat_test.go
@@ -25,7 +25,7 @@ func TestChatPageServedWithoutInternalIDs(t *testing.T) {
 		t.Fatalf("expected /chat status 200, got %d", recorder.Code)
 	}
 	body := recorder.Body.String()
-	for _, required := range []string{"cognitive-status", "aria-live=\"polite\"", "cognitive-console-link", "href=\"/admin\"", "Проверь канал", "Изменить настройку", "ai-data-error", "Не вставляйте пароли", "версия 1.0.0", "обновлено 21.08.2026", "datetime=\"2026-08-21\""} {
+	for _, required := range []string{"cognitive-status", "aria-live=\"polite\"", "cognitive-console-link", "href=\"/admin\"", "Проверь канал", "Изменить настройку", "ai-data-error", "Не вставляйте пароли", "build-meta", "версия ", "обновлено ", "datetime=\""} {
 		if !strings.Contains(body, required) {
 			t.Fatalf("/chat is missing human status marker %q", required)
 		}
diff --git a/cmd/creator-web/server.go b/cmd/creator-web/server.go
index e064bce..2584303 100644
--- a/cmd/creator-web/server.go
+++ b/cmd/creator-web/server.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"bytes"
 	"embed"
 	"encoding/json"
 	"fmt"
@@ -8,7 +9,9 @@ import (
 	"io/fs"
 	"net/http"
 	"net/url"
+	"os"
 	"strings"
+	"time"
 	"unicode/utf8"
 
 	"git.cin.su/m/Assistant/contracts/capability"
@@ -36,6 +39,12 @@ type gateway struct {
 	cognitive  *url.URL
 	client     *http.Client
 	static     http.Handler
+	build      buildMetadata
+}
+
+type buildMetadata struct {
+	revision string
+	updated  time.Time
 }
 
 type routeTarget uint8
@@ -74,7 +83,20 @@ func newHandler(coreURL, continuityURL, commitURL string, client *http.Client, c
 	if client == nil {
 		client = http.DefaultClient
 	}
-	return securityHeaders(&gateway{core: core, continuity: continuity, commit: commit, cognitive: cognitiveRuntime, client: client, static: http.FileServer(http.FS(assets))}), nil
+	updated := time.Now().UTC()
+	if raw := strings.TrimSpace(os.Getenv("ASSISTANT_BUILD_TIME")); raw != "" {
+		if parsed, parseErr := time.Parse(time.RFC3339, raw); parseErr == nil {
+			updated = parsed.UTC()
+		}
+	}
+	revision := strings.TrimSpace(os.Getenv("ASSISTANT_BUILD_REVISION"))
+	if revision == "" {
+		revision = "development"
+	}
+	if len(revision) > 12 {
+		revision = revision[:12]
+	}
+	return securityHeaders(&gateway{core: core, continuity: continuity, commit: commit, cognitive: cognitiveRuntime, client: client, static: http.FileServer(http.FS(assets)), build: buildMetadata{revision: revision, updated: updated}}), nil
 }
 
 func parseRuntimeURL(rawURL, name string) (*url.URL, error) {
@@ -112,11 +134,11 @@ func (g *gateway) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	if r.URL.Path == "/" {
-		serveEmbeddedHTML(w, "chat.html")
+		g.serveEmbeddedHTML(w, "chat.html")
 		return
 	}
 	if r.URL.Path == "/admin" {
-		serveEmbeddedHTML(w, "index.html")
+		g.serveEmbeddedHTML(w, "index.html")
 		return
 	}
 	if r.URL.Path == "/chat" {
@@ -127,7 +149,7 @@ func (g *gateway) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	g.static.ServeHTTP(w, r)
 }
 
-func serveEmbeddedHTML(w http.ResponseWriter, name string) {
+func (g *gateway) serveEmbeddedHTML(w http.ResponseWriter, name string) {
 	body, err := staticFiles.ReadFile("static/" + name)
 	if err != nil {
 		http.Error(w, "page unavailable", http.StatusNotFound)
@@ -135,6 +157,9 @@ func serveEmbeddedHTML(w http.ResponseWriter, name string) {
 	}
 	w.Header().Set("Cache-Control", "no-store")
 	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	body = bytes.ReplaceAll(body, []byte("__ASSISTANT_BUILD_REVISION__"), []byte(g.build.revision))
+	body = bytes.ReplaceAll(body, []byte("__ASSISTANT_BUILD_TIME__"), []byte(g.build.updated.Format("02.01.2006 15:04 UTC")))
+	body = bytes.ReplaceAll(body, []byte("__ASSISTANT_BUILD_DATETIME__"), []byte(g.build.updated.Format(time.RFC3339)))
 	_, _ = w.Write(body)
 }
 
diff --git a/cmd/creator-web/static/chat.html b/cmd/creator-web/static/chat.html
index 7f380fa..d1b6c5d 100644
--- a/cmd/creator-web/static/chat.html
+++ b/cmd/creator-web/static/chat.html
@@ -29,8 +29,8 @@
         <button id="cognitive-status" class="cognitive-status" data-state="checking" type="button" role="status" aria-live="polite" title="Проверить канал ещё раз">проверяю канал мышления</button>
         <a id="cognitive-console-link" class="cognitive-console-link" href="/admin" hidden>настроить в консоли</a>
         <div class="build-meta" aria-label="Версия и время обновления">
-          <span>версия 1.0.0</span>
-          <time datetime="2026-08-21">обновлено 21.08.2026</time>
+          <span>версия __ASSISTANT_BUILD_REVISION__</span>
+          <time datetime="__ASSISTANT_BUILD_DATETIME__">обновлено __ASSISTANT_BUILD_TIME__</time>
         </div>
         <a href="/admin" class="operator-link">Консоль</a>
         <button id="logout" type="button" aria-label="Выйти">↗</button>
diff --git a/deploy/docker-compose.prod.yml b/deploy/docker-compose.prod.yml
index cbf70c8..493795d 100644
--- a/deploy/docker-compose.prod.yml
+++ b/deploy/docker-compose.prod.yml
@@ -172,6 +172,7 @@ services:
       CONTINUITY_RUNTIME_URL: http://continuity-runtime:8081
       COMMIT_RUNTIME_URL: http://commit-runtime:8082
       COGNITIVE_RUNTIME_URL: http://cognitive-worker:8083
+      ASSISTANT_BUILD_REVISION: ${ASSISTANT_SOURCE_REVISION:-unknown}
     ports: ["${CREATOR_WEB_PORT:-18080}:8084"]
     depends_on: [core-runtime, continuity-runtime, commit-runtime, cognitive-worker]
     healthcheck:
diff --git a/dev/tasks/DEV-000088-runtime-build-status.json b/dev/tasks/DEV-000088-runtime-build-status.json
new file mode 100644
index 0000000..12fd0a9
--- /dev/null
+++ b/dev/tasks/DEV-000088-runtime-build-status.json
@@ -0,0 +1,23 @@
+{
+  "task_id": "DEV-000088",
+  "task_revision": 1,
+  "architecture_revision": "DEV-000073-baseline",
+  "base_repo_revision": "cdc8eea1a747657ce0534b99ff35933ab3385877",
+  "risk_tier": "B",
+  "intent": "Expose self-describing build revision and runtime update time in the Domovoy chat without requiring a human status query.",
+  "requirement_ids": ["Human can identify the running build", "Displayed update time reflects the running container", "No internal identifiers are exposed in the chat UI"],
+  "allowed_change_scope": {"modules": ["creator-web", "deployment"], "paths": ["cmd/creator-web/server.go", "cmd/creator-web/chat_test.go", "cmd/creator-web/static/chat.html", "deploy/docker-compose.prod.yml", "dev/tasks/DEV-000088-runtime-build-status.json"]},
+  "forbidden_change_scope": {"paths": ["architecture/**", "security/**", "database/**"]},
+  "allowed_architecture_delta": {"new_cross_module_dependencies": 0, "new_canonical_owners": 0, "new_privileges": 0, "new_third_party_dependencies": 0, "new_provider_adapters": 0, "new_database_owner_roles": 0},
+  "contracts": {"consume": ["existing source revision build argument"], "may_change": []},
+  "semantic_owner": "creator-web",
+  "canonical_state": [],
+  "state_transitions": ["Container startup -> build metadata visible in chat"],
+  "side_effects_and_privileges": ["No new privilege", "No user or provider secrets displayed"],
+  "persistence_and_migrations": ["No persistence or migration"],
+  "failure_retry_restart": ["Missing revision is displayed as development/unknown; startup time remains observable"],
+  "assumptions": ["The production compose runner supplies ASSISTANT_SOURCE_REVISION for the running revision"],
+  "acceptance_scenarios": ["Chat shows revision and update time without a manual question", "HTML contains no internal provider or session identifiers", "Tests remain deterministic outside production"],
+  "required_tests": ["go test ./cmd/creator-web", "go test ./...", "go vet ./...", "git diff --check", "production page verification"],
+  "terminal_gap_states": ["BLOCKED_BY_ARCHITECTURE_GAP", "BLOCKED_BY_SPEC_GAP", "BLOCKED_BY_CONFLICT"]
+}