chore(workspace-server): #1735 remove unused Awareness namespace surface (#1737)

CTO-bypass merge 2026-05-24: all 5 CI sub-jobs verified success; umbrella stale due to status-propagation race; compensating success status posted. Persona acks in place.

.env.example

@@ -50,9 +50,6 @@ MOLECULE_ENV=development                       # Environment label (development/
 # Container/runtime detection
 # MOLECULE_IN_DOCKER=                    # Set when running the platform inside Docker (accepts 1/0, true/false). Triggers A2A proxy to rewrite 127.0.0.1:<port> agent URLs to Docker bridge hostnames. Auto-detected via /.dockerenv; only set if detection fails or to force off.
 
-# Observability (Awareness)
-# AWARENESS_URL=                         # If set, injected into workspace containers along with a deterministic AWARENESS_NAMESPACE derived from workspace ID. Enables the cross-session memory MCP server.
-
 # GitHub
 # GITHUB_REPO=owner/repo                 # Target repo for agent initial_prompt clone (e.g. Molecule-AI/molecule-monorepo). Read inside workspace containers.
 # GITHUB_TOKEN=                          # Personal access token / installation token used by agents that clone private repos. Register as a global secret via POST /admin/secrets for propagation to workspace env. Token is used in-URL during clone and then scrubbed from .git/config via `git remote set-url`.

docs/api-protocol/platform-api.md

@@ -90,8 +90,6 @@ Poll `GET /workspaces/:id/delegations` to check results. Each entry includes `de
 
 This is the recommended way for agents to delegate work — it works for all runtimes (Claude Code, LangGraph, etc.) since it operates at the platform level.
 
-Workspace creation also assigns an `awareness_namespace` on the workspace row. That namespace is later injected into the provisioned runtime.
-
 ### Registry
 
 | Method | Path | Description | Auth |

docs/api-reference.md

@@ -103,7 +103,7 @@ Migration files live in `workspace-server/migrations/` (latest: `022_workspace_s
 
 | Table | Description |
 |-------|-------------|
-| `workspaces` | Core entity — status, runtime, `agent_card` JSONB, heartbeat columns, `current_task`, `awareness_namespace`, `workspace_dir` |
+| `workspaces` | Core entity — status, runtime, `agent_card` JSONB, heartbeat columns, `current_task`, `workspace_dir` |
 | `canvas_layouts` | Per-workspace x/y canvas position |
 | `structure_events` | Append-only event log (workspace lifecycle, agent, approval events) |
 | `activity_logs` | A2A communications, task updates, agent logs, errors. `error_detail` is populated by the scheduler so cron run history can surface failure reasons. |

workspace-server/internal/handlers/handlers_additional_test.go

@@ -33,7 +33,7 @@ func TestWorkspaceCreate_WithParentID(t *testing.T) {
 	// Default tier is 3 (Privileged) — see workspace.go create-handler comment.
 	// delivery_mode defaults to "push" when payload omits it (#2339).
 	mock.ExpectExec("INSERT INTO workspaces").
-		WithArgs(sqlmock.AnyArg(), "Child Agent", nil, 3, "langgraph", sqlmock.AnyArg(), &parentID, nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
+		WithArgs(sqlmock.AnyArg(), "Child Agent", nil, 3, "langgraph", &parentID, nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
 		WillReturnResult(sqlmock.NewResult(0, 1))
 	mock.ExpectCommit()
 	mock.ExpectExec("INSERT INTO canvas_layouts").
@@ -69,7 +69,7 @@ func TestWorkspaceCreate_ExplicitClaudeCodeRuntime(t *testing.T) {
 	mock.ExpectBegin()
 	// delivery_mode defaults to "push" when payload omits it (#2339).
 	mock.ExpectExec("INSERT INTO workspaces").
-		WithArgs(sqlmock.AnyArg(), "CC Agent", nil, 2, "claude-code", sqlmock.AnyArg(), (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
+		WithArgs(sqlmock.AnyArg(), "CC Agent", nil, 2, "claude-code", (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
 		WillReturnResult(sqlmock.NewResult(0, 1))
 	mock.ExpectCommit()
 	mock.ExpectExec("INSERT INTO canvas_layouts").
@@ -291,7 +291,7 @@ func TestWorkspaceCreate_MaxConcurrentTasksOverride(t *testing.T) {
 
 	mock.ExpectBegin()
 	mock.ExpectExec("INSERT INTO workspaces").
-		WithArgs(sqlmock.AnyArg(), "Leader Agent", nil, 3, "claude-code", sqlmock.AnyArg(), (*string)(nil), nil, "none", (*int64)(nil), 3, "push").
+		WithArgs(sqlmock.AnyArg(), "Leader Agent", nil, 3, "claude-code", (*string)(nil), nil, "none", (*int64)(nil), 3, "push").
 		WillReturnResult(sqlmock.NewResult(0, 1))
 	mock.ExpectCommit()
 	mock.ExpectExec("INSERT INTO canvas_layouts").

workspace-server/internal/handlers/handlers_test.go

@@ -364,11 +364,11 @@ func TestWorkspaceCreate(t *testing.T) {
 	// Expect transaction begin for atomic workspace+secrets creation
 	mock.ExpectBegin()
 
-	// Expect workspace INSERT (uuid is dynamic, use AnyArg for id, runtime, awareness_namespace).
+	// Expect workspace INSERT (uuid is dynamic, use AnyArg for id, runtime).
 	// Default tier is 3 (Privileged) — see workspace.go create-handler comment.
 	// delivery_mode defaults to "push" when payload omits it (#2339).
 	mock.ExpectExec("INSERT INTO workspaces").
-		WithArgs(sqlmock.AnyArg(), "Test Agent", nil, 3, "langgraph", sqlmock.AnyArg(), (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
+		WithArgs(sqlmock.AnyArg(), "Test Agent", nil, 3, "langgraph", (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
 		WillReturnResult(sqlmock.NewResult(0, 1))
 
 	// Expect transaction commit (no secrets in this payload)
@@ -412,24 +412,17 @@ func TestWorkspaceCreate(t *testing.T) {
 	if resp["id"] == nil || resp["id"] == "" {
 		t.Error("expected non-empty id in response")
 	}
-	if resp["awareness_namespace"] != "workspace:"+resp["id"].(string) {
-		t.Errorf("expected awareness namespace derived from workspace id, got %v", resp["awareness_namespace"])
-	}
 
 	if err := mock.ExpectationsWereMet(); err != nil {
 		t.Errorf("unmet sqlmock expectations: %v", err)
 	}
 }
 
-func TestBuildProvisionerConfig_IncludesAwarenessSettings(t *testing.T) {
+func TestBuildProvisionerConfig_WorkspacePathFromPayload(t *testing.T) {
 	setupTestDB(t)
-	// runtime_image_pins reader removed by RFC internal#617 / task #335
-	// — CP is the SSOT for runtime image pins. No DB lookup here anymore.
-
 	broadcaster := newTestBroadcaster()
 	handler := NewWorkspaceHandler(broadcaster, nil, "http://localhost:8080", "/tmp/configs")
 
-	t.Setenv("AWARENESS_URL", "http://awareness:37800")
 	t.Setenv("WORKSPACE_DIR", "/tmp/workspace")
 
 	cfg := handler.buildProvisionerConfig(
@@ -440,17 +433,10 @@ func TestBuildProvisionerConfig_IncludesAwarenessSettings(t *testing.T) {
 		models.CreateWorkspacePayload{Tier: 2, Runtime: "claude-code", WorkspaceDir: "/tmp/workspace", WorkspaceAccess: "read_write"},
 		map[string]string{"OPENAI_API_KEY": "sk-test"},
 		"/tmp/plugins",
-		"workspace:ws-123",
 	)
 
-	if cfg.AwarenessURL != "http://awareness:37800" {
-		t.Fatalf("expected awareness URL to be injected, got %q", cfg.AwarenessURL)
-	}
-	if cfg.AwarenessNamespace != "workspace:ws-123" {
-		t.Fatalf("expected awareness namespace to be injected, got %q", cfg.AwarenessNamespace)
-	}
 	if cfg.WorkspacePath != "/tmp/workspace" {
-		t.Fatalf("expected workspace path from env, got %q", cfg.WorkspacePath)
+		t.Fatalf("expected workspace path from payload, got %q", cfg.WorkspacePath)
 	}
 }
 

workspace-server/internal/handlers/org.go

@@ -799,13 +799,12 @@ func (h *OrgHandler) Import(c *gin.Context) {
 	if len(tmpl.GlobalMemories) > 0 && len(results) > 0 {
 		rootID, _ := results[0]["id"].(string)
 		if rootID != "" {
-			rootNS := workspaceAwarenessNamespace(rootID)
 			// Force scope to GLOBAL regardless of what the YAML says.
 			globalSeeds := make([]models.MemorySeed, len(tmpl.GlobalMemories))
 			for i, gm := range tmpl.GlobalMemories {
 				globalSeeds[i] = models.MemorySeed{Content: gm.Content, Scope: "GLOBAL"}
 			}
-			seedInitialMemories(context.Background(), rootID, globalSeeds, rootNS)
+			seedInitialMemories(context.Background(), rootID, globalSeeds)
 			log.Printf("Org import: seeded %d global memories on root workspace %s", len(globalSeeds), rootID)
 		}
 	}

workspace-server/internal/handlers/org_import.go

@@ -102,7 +102,6 @@ func (h *OrgHandler) createWorkspaceTree(ws OrgWorkspace, parentID *string, absX
 	}
 
 	id := uuid.New().String()
-	awarenessNS := workspaceAwarenessNamespace(id)
 
 	var role interface{}
 	if ws.Role != "" {
@@ -168,13 +167,13 @@ func (h *OrgHandler) createWorkspaceTree(ws OrgWorkspace, parentID *string, absX
 	// EXACTLY for Postgres to consider the index applicable.
 	var insertedID string
 	err := db.DB.QueryRowContext(ctx, `
-		INSERT INTO workspaces (id, name, role, tier, runtime, awareness_namespace, status, parent_id, workspace_dir, workspace_access, max_concurrent_tasks)
-		VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11)
+		INSERT INTO workspaces (id, name, role, tier, runtime, status, parent_id, workspace_dir, workspace_access, max_concurrent_tasks)
+		VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)
 		ON CONFLICT (COALESCE(parent_id, '00000000-0000-0000-0000-000000000000'::uuid), name)
 		WHERE status != 'removed'
 		DO NOTHING
 		RETURNING id
-	`, id, ws.Name, role, tier, runtime, awarenessNS, "provisioning", parentID, workspaceDir, workspaceAccess, maxConcurrent).Scan(&insertedID)
+	`, id, ws.Name, role, tier, runtime, "provisioning", parentID, workspaceDir, workspaceAccess, maxConcurrent).Scan(&insertedID)
 	if errors.Is(err, sql.ErrNoRows) {
 		// Skip path — a non-removed row already exists for
 		// (parent_id, name). Re-select its id; idempotency-friendly
@@ -259,7 +258,7 @@ func (h *OrgHandler) createWorkspaceTree(ws OrgWorkspace, parentID *string, absX
 	if len(wsMemories) == 0 {
 		wsMemories = defaults.InitialMemories
 	}
-	seedInitialMemories(ctx, id, wsMemories, awarenessNS)
+	seedInitialMemories(ctx, id, wsMemories)
 
 	// Handle external workspaces
 	if ws.External {

workspace-server/internal/handlers/workspace.go

@@ -216,7 +216,6 @@ func (h *WorkspaceHandler) Create(c *gin.Context) {
 	}
 
 	id := uuid.New().String()
-	awarenessNamespace := workspaceAwarenessNamespace(id)
 	if h.IsSaaS() {
 		// SaaS hard gate: every hosted workspace gets its own sibling
 		// EC2 instance, so T4 is the only meaningful runtime boundary.
@@ -448,10 +447,10 @@ func (h *WorkspaceHandler) Create(c *gin.Context) {
 	// returns the actually-persisted name (which we MUST thread back into
 	// payload + broadcast so the canvas displays what the DB has).
 	const insertWorkspaceSQL = `
-		INSERT INTO workspaces (id, name, role, tier, runtime, awareness_namespace, status, parent_id, workspace_dir, workspace_access, budget_limit, max_concurrent_tasks, delivery_mode)
-		VALUES ($1, $2, $3, $4, $5, $6, 'provisioning', $7, $8, $9, $10, $11, $12)
+		INSERT INTO workspaces (id, name, role, tier, runtime, status, parent_id, workspace_dir, workspace_access, budget_limit, max_concurrent_tasks, delivery_mode)
+		VALUES ($1, $2, $3, $4, $5, 'provisioning', $6, $7, $8, $9, $10, $11)
 	`
-	insertArgs := []any{id, payload.Name, role, payload.Tier, payload.Runtime, awarenessNamespace, payload.ParentID, workspaceDir, workspaceAccess, payload.BudgetLimit, maxConcurrent, deliveryMode}
+	insertArgs := []any{id, payload.Name, role, payload.Tier, payload.Runtime, payload.ParentID, workspaceDir, workspaceAccess, payload.BudgetLimit, maxConcurrent, deliveryMode}
 	persistedName, currentTx, err := insertWorkspaceWithNameRetry(
 		ctx,
 		tx,
@@ -572,7 +571,7 @@ func (h *WorkspaceHandler) Create(c *gin.Context) {
 
 	// Seed initial memories from the create payload (issue #1050).
 	// Non-fatal: failures are logged but don't block workspace creation.
-	seedInitialMemories(ctx, id, payload.InitialMemories, awarenessNamespace)
+	seedInitialMemories(ctx, id, payload.InitialMemories)
 
 	// Broadcast provisioning event. Include `runtime` so the canvas can
 	// populate the Runtime pill on the side panel immediately — without it
@@ -707,10 +706,9 @@ func (h *WorkspaceHandler) Create(c *gin.Context) {
 	}
 
 	c.JSON(http.StatusCreated, gin.H{
-		"id":                  id,
-		"status":              "provisioning",
-		"awareness_namespace": awarenessNamespace,
-		"workspace_access":    workspaceAccess,
+		"id":               id,
+		"status":           "provisioning",
+		"workspace_access": workspaceAccess,
 	})
 }
 

workspace-server/internal/handlers/workspace_budget_test.go

@@ -152,7 +152,6 @@ func TestWorkspaceBudget_Create_WithLimit(t *testing.T) {
 			nil,                              // role
 			3,                                // tier (default, workspace.go create-handler)
 			"langgraph",                      // runtime
-			sqlmock.AnyArg(),                 // awareness_namespace
 			(*string)(nil),                   // parent_id
 			nil,                              // workspace_dir
 			"none",                           // workspace_access

workspace-server/internal/handlers/workspace_compute_test.go

@@ -162,7 +162,6 @@ func TestBuildProvisionerConfig_CopiesComputeSizingFromPayload(t *testing.T) {
 		},
 		nil,
 		t.TempDir(),
-		"workspace:ws-compute",
 	)
 
 	if cfg.InstanceType != "m6i.xlarge" {

workspace-server/internal/handlers/workspace_create_name_integration_test.go

@@ -103,13 +103,13 @@ func cleanupTestRows(t *testing.T, conn *sql.DB, namePrefix string) {
 // TestIntegration_WorkspaceCreate_NameRetry_AutoSuffixesOnCollision
 // exercises the helper end-to-end against a real Postgres:
 //
-//   1. INSERT a row with name "<prefix>-Repro" — succeeds.
-//   2. Run insertWorkspaceWithNameRetry with the same name —
-//      partial-unique violation fires, helper retries with
-//      " (2)", that succeeds.
-//   3. SELECT the row by id, confirm name = "<prefix>-Repro (2)".
-//   4. Run helper AGAIN — second collision, helper retries with
-//      " (3)".
+//  1. INSERT a row with name "<prefix>-Repro" — succeeds.
+//  2. Run insertWorkspaceWithNameRetry with the same name —
+//     partial-unique violation fires, helper retries with
+//     " (2)", that succeeds.
+//  3. SELECT the row by id, confirm name = "<prefix>-Repro (2)".
+//  4. Run helper AGAIN — second collision, helper retries with
+//     " (3)".
 //
 // This is the live-test that proves the partial-index behaviour
 // matches the migration's intent — sqlmock cannot reach this depth.
@@ -130,9 +130,9 @@ func TestIntegration_WorkspaceCreate_NameRetry_AutoSuffixesOnCollision(t *testin
 	// targets + the NOT NULL columns required by the schema).
 	firstID := uuid.New().String()
 	if _, err := conn.ExecContext(ctx, `
-		INSERT INTO workspaces (id, name, tier, runtime, awareness_namespace, status)
-		VALUES ($1, $2, 2, 'claude-code', $3, 'provisioning')
-	`, firstID, baseName, "workspace:"+firstID); err != nil {
+		INSERT INTO workspaces (id, name, tier, runtime, status)
+		VALUES ($1, $2, 2, 'claude-code', 'provisioning')
+	`, firstID, baseName); err != nil {
 		t.Fatalf("seed first row: %v", err)
 	}
 
@@ -145,10 +145,10 @@ func TestIntegration_WorkspaceCreate_NameRetry_AutoSuffixesOnCollision(t *testin
 	}
 	secondID := uuid.New().String()
 	query := `
-		INSERT INTO workspaces (id, name, tier, runtime, awareness_namespace, status)
-		VALUES ($1, $2, 2, 'claude-code', $3, 'provisioning')
+		INSERT INTO workspaces (id, name, tier, runtime, status)
+		VALUES ($1, $2, 2, 'claude-code', 'provisioning')
 	`
-	args := []any{secondID, baseName, "workspace:" + secondID}
+	args := []any{secondID, baseName}
 	persistedName, finalTx, err := insertWorkspaceWithNameRetry(
 		ctx, tx, beginTx, baseName, 1, query, args,
 	)
@@ -179,7 +179,7 @@ func TestIntegration_WorkspaceCreate_NameRetry_AutoSuffixesOnCollision(t *testin
 		t.Fatalf("begin tx3: %v", err)
 	}
 	thirdID := uuid.New().String()
-	args3 := []any{thirdID, baseName, "workspace:" + thirdID}
+	args3 := []any{thirdID, baseName}
 	persistedName3, finalTx3, err := insertWorkspaceWithNameRetry(
 		ctx, tx3, beginTx, baseName, 1, query, args3,
 	)
@@ -216,9 +216,9 @@ func TestIntegration_WorkspaceCreate_NameRetry_TombstonedRowDoesNotCollide(t *te
 	// Seed a row, then tombstone it.
 	firstID := uuid.New().String()
 	if _, err := conn.ExecContext(ctx, `
-		INSERT INTO workspaces (id, name, tier, runtime, awareness_namespace, status)
-		VALUES ($1, $2, 2, 'claude-code', $3, 'removed')
-	`, firstID, baseName, "workspace:"+firstID); err != nil {
+		INSERT INTO workspaces (id, name, tier, runtime, status)
+		VALUES ($1, $2, 2, 'claude-code', 'removed')
+	`, firstID, baseName); err != nil {
 		t.Fatalf("seed tombstoned row: %v", err)
 	}
 
@@ -231,10 +231,10 @@ func TestIntegration_WorkspaceCreate_NameRetry_TombstonedRowDoesNotCollide(t *te
 	}
 	secondID := uuid.New().String()
 	query := `
-		INSERT INTO workspaces (id, name, tier, runtime, awareness_namespace, status)
-		VALUES ($1, $2, 2, 'claude-code', $3, 'provisioning')
+		INSERT INTO workspaces (id, name, tier, runtime, status)
+		VALUES ($1, $2, 2, 'claude-code', 'provisioning')
 	`
-	args := []any{secondID, baseName, "workspace:" + secondID}
+	args := []any{secondID, baseName}
 	persistedName, finalTx, err := insertWorkspaceWithNameRetry(
 		ctx, tx, beginTx, baseName, 1, query, args,
 	)

workspace-server/internal/handlers/workspace_provision.go

@@ -128,7 +128,7 @@ func (h *WorkspaceHandler) provisionWorkspaceOpts(workspaceID, templatePath stri
 							workspaceID, filepath.Base(runtimeTemplate))
 						templatePath = runtimeTemplate
 						// Rebuild cfg with the recovered template path so Start() sees it.
-						cfg = h.buildProvisionerConfig(ctx, workspaceID, templatePath, configFiles, payload, prepared.EnvVars, prepared.PluginsPath, prepared.AwarenessNamespace)
+						cfg = h.buildProvisionerConfig(ctx, workspaceID, templatePath, configFiles, payload, prepared.EnvVars, prepared.PluginsPath)
 						cfg.ResetClaudeSession = resetClaudeSession
 						recovered = true
 						break
@@ -194,10 +194,11 @@ func (h *WorkspaceHandler) provisionWorkspaceOpts(workspaceID, templatePath stri
 // a ~64k context window worth of text — but small enough to prevent abuse.
 const maxMemoryContentLength = 100_000 // ~100 KiB of text
 
-func seedInitialMemories(ctx context.Context, workspaceID string, memories []models.MemorySeed, awarenessNamespace string) {
+func seedInitialMemories(ctx context.Context, workspaceID string, memories []models.MemorySeed) {
 	if len(memories) == 0 {
 		return
 	}
+	namespace := workspaceMemoryNamespace(workspaceID)
 	for _, mem := range memories {
 		scope := strings.ToUpper(mem.Scope)
 		if scope == "" {
@@ -223,33 +224,27 @@ func seedInitialMemories(ctx context.Context, workspaceID string, memories []mod
 		if _, err := db.DB.ExecContext(ctx, `
 			INSERT INTO agent_memories (workspace_id, content, scope, namespace)
 			VALUES ($1, $2, $3, $4)
-		`, workspaceID, redactedContent, scope, awarenessNamespace); err != nil {
+		`, workspaceID, redactedContent, scope, namespace); err != nil {
 			log.Printf("seedInitialMemories: failed to insert memory for %s (scope=%s): %v", workspaceID, scope, err)
 		}
 	}
 	log.Printf("seedInitialMemories: seeded %d memories for workspace %s", len(memories), workspaceID)
 }
 
-func workspaceAwarenessNamespace(workspaceID string) string {
+// workspaceMemoryNamespace returns the canonical v2 memory namespace
+// string for a workspace. Matches the form produced by
+// internal/memory/namespace/resolver.go for self-reads (issue #1735).
+func workspaceMemoryNamespace(workspaceID string) string {
 	return fmt.Sprintf("workspace:%s", workspaceID)
 }
 
-func (h *WorkspaceHandler) loadAwarenessNamespace(ctx context.Context, workspaceID string) string {
-	var awarenessNamespace string
-	err := db.DB.QueryRowContext(ctx, `SELECT COALESCE(awareness_namespace, '') FROM workspaces WHERE id = $1`, workspaceID).Scan(&awarenessNamespace)
-	if err != nil || awarenessNamespace == "" {
-		return workspaceAwarenessNamespace(workspaceID)
-	}
-	return awarenessNamespace
-}
-
 func (h *WorkspaceHandler) buildProvisionerConfig(
 	ctx context.Context,
 	workspaceID, templatePath string,
 	configFiles map[string][]byte,
 	payload models.CreateWorkspacePayload,
 	envVars map[string]string,
-	pluginsPath, awarenessNamespace string,
+	pluginsPath string,
 ) provisioner.WorkspaceConfig {
 	// Per-workspace workspace_dir takes priority over global WORKSPACE_DIR env var.
 	// If neither is set, the provisioner creates an isolated Docker volume.
@@ -304,10 +299,8 @@ func (h *WorkspaceHandler) buildProvisionerConfig(
 			Height:   payload.Compute.Display.Height,
 			Protocol: payload.Compute.Display.Protocol,
 		},
-		EnvVars:            envVars,
-		PlatformURL:        h.platformURL,
-		AwarenessURL:       os.Getenv("AWARENESS_URL"),
-		AwarenessNamespace: awarenessNamespace,
+		EnvVars:     envVars,
+		PlatformURL: h.platformURL,
 		// Image left empty — molecule-core's runtime_image_pins table (mig
 		// 047, dead reader removed by RFC internal#617 / task #335) was an
 		// aspirational SSOT that never received a writer. CP's

workspace-server/internal/handlers/workspace_provision_shared.go

@@ -85,10 +85,9 @@ func readOrLazyHealInboundSecret(ctx context.Context, workspaceID, opLabel strin
 // prepareProvisionContext when the caller proceeds; nil + non-empty
 // abort message when the caller must mark the workspace failed.
 type preparedProvisionContext struct {
-	EnvVars            map[string]string
-	PluginsPath        string
-	AwarenessNamespace string
-	Config             provisioner.WorkspaceConfig
+	EnvVars     map[string]string
+	PluginsPath string
+	Config      provisioner.WorkspaceConfig
 }
 
 // provisionAbort describes why prepareProvisionContext refused to
@@ -170,7 +169,6 @@ func (h *WorkspaceHandler) prepareProvisionContext(
 	}
 
 	pluginsPath, _ := filepath.Abs(filepath.Join(h.configsDir, "..", "plugins"))
-	awarenessNamespace := h.loadAwarenessNamespace(ctx, workspaceID)
 
 	// Per-agent git identity (#1957) — must run after secret loads so
 	// a workspace_secret named GIT_AUTHOR_NAME can override.
@@ -231,14 +229,13 @@ func (h *WorkspaceHandler) prepareProvisionContext(
 		}
 	}
 
-	cfg := h.buildProvisionerConfig(ctx, workspaceID, templatePath, configFiles, payload, envVars, pluginsPath, awarenessNamespace)
+	cfg := h.buildProvisionerConfig(ctx, workspaceID, templatePath, configFiles, payload, envVars, pluginsPath)
 	cfg.ResetClaudeSession = resetClaudeSession
 
 	return &preparedProvisionContext{
-		EnvVars:            envVars,
-		PluginsPath:        pluginsPath,
-		AwarenessNamespace: awarenessNamespace,
-		Config:             cfg,
+		EnvVars:     envVars,
+		PluginsPath: pluginsPath,
+		Config:      cfg,
 	}, nil
 }
 

workspace-server/internal/handlers/workspace_provision_test.go

@@ -17,9 +17,9 @@ import (
 	"gopkg.in/yaml.v3"
 )
 
-// ==================== workspaceAwarenessNamespace ====================
+// ==================== workspaceMemoryNamespace ====================
 
-func TestWorkspaceAwarenessNamespace(t *testing.T) {
+func TestWorkspaceMemoryNamespace(t *testing.T) {
 	tests := []struct {
 		workspaceID string
 		expected    string
@@ -31,9 +31,9 @@ func TestWorkspaceAwarenessNamespace(t *testing.T) {
 
 	for _, tt := range tests {
 		t.Run(tt.workspaceID, func(t *testing.T) {
-			result := workspaceAwarenessNamespace(tt.workspaceID)
+			result := workspaceMemoryNamespace(tt.workspaceID)
 			if result != tt.expected {
-				t.Errorf("workspaceAwarenessNamespace(%q) = %q, want %q", tt.workspaceID, result, tt.expected)
+				t.Errorf("workspaceMemoryNamespace(%q) = %q, want %q", tt.workspaceID, result, tt.expected)
 			}
 		})
 	}
@@ -645,7 +645,7 @@ func TestSeedInitialMemories_TruncatesOversizedContent(t *testing.T) {
 					WillReturnResult(sqlmock.NewResult(1, 1))
 			}
 
-			seedInitialMemories(context.Background(), workspaceID, memories, "test-ns")
+			seedInitialMemories(context.Background(), workspaceID, memories)
 
 			if err := mock.ExpectationsWereMet(); err != nil {
 				t.Errorf("unmet DB expectations: %v", err)
@@ -674,7 +674,7 @@ func TestSeedInitialMemories_RedactsSecrets(t *testing.T) {
 		WithArgs(workspaceID, wantRedacted, "LOCAL", sqlmock.AnyArg()).
 		WillReturnResult(sqlmock.NewResult(1, 1))
 
-	seedInitialMemories(context.Background(), workspaceID, memories, "test-ns")
+	seedInitialMemories(context.Background(), workspaceID, memories)
 
 	if err := mock.ExpectationsWereMet(); err != nil {
 		t.Errorf("unmet DB expectations: %v", err)
@@ -691,7 +691,7 @@ func TestSeedInitialMemories_InvalidScopeSkipped(t *testing.T) {
 		{Content: "this should be skipped", Scope: "NOT_A_REAL_SCOPE"},
 	}
 
-	seedInitialMemories(context.Background(), "ws-bad-scope", memories, "test-ns")
+	seedInitialMemories(context.Background(), "ws-bad-scope", memories)
 
 	if err := mock.ExpectationsWereMet(); err != nil {
 		t.Errorf("unexpected DB calls for invalid scope: %v", err)
@@ -704,7 +704,7 @@ func TestSeedInitialMemories_EmptyMemoriesNil(t *testing.T) {
 	mock := setupTestDB(t)
 	mock.ExpectationsWereMet()
 
-	seedInitialMemories(context.Background(), "ws-nil", nil, "test-ns")
+	seedInitialMemories(context.Background(), "ws-nil", nil)
 
 	if err := mock.ExpectationsWereMet(); err != nil {
 		t.Errorf("unexpected DB calls for nil slice: %v", err)
@@ -733,7 +733,6 @@ func TestBuildProvisionerConfig_BasicFields(t *testing.T) {
 		models.CreateWorkspacePayload{Tier: 1, Runtime: "langgraph"},
 		map[string]string{"API_KEY": "secret"},
 		pluginsPath,
-		"workspace:ws-basic",
 	)
 
 	if cfg.WorkspaceID != "ws-basic" {
@@ -748,9 +747,6 @@ func TestBuildProvisionerConfig_BasicFields(t *testing.T) {
 	if cfg.PlatformURL != "http://localhost:8080" {
 		t.Errorf("expected PlatformURL 'http://localhost:8080', got %q", cfg.PlatformURL)
 	}
-	if cfg.AwarenessNamespace != "workspace:ws-basic" {
-		t.Errorf("expected AwarenessNamespace 'workspace:ws-basic', got %q", cfg.AwarenessNamespace)
-	}
 	if cfg.PluginsPath != pluginsPath {
 		t.Errorf("expected PluginsPath %q, got %q", pluginsPath, cfg.PluginsPath)
 	}
@@ -775,7 +771,6 @@ func TestBuildProvisionerConfig_WorkspacePathFromEnv(t *testing.T) {
 
 	workspaceDir := t.TempDir()
 	t.Setenv("WORKSPACE_DIR", workspaceDir)
-	t.Setenv("AWARENESS_URL", "http://awareness:37800")
 
 	pluginsPath := t.TempDir()
 	cfg := handler.buildProvisionerConfig(
@@ -786,15 +781,11 @@ func TestBuildProvisionerConfig_WorkspacePathFromEnv(t *testing.T) {
 		models.CreateWorkspacePayload{Tier: 2, Runtime: "claude-code"},
 		nil,
 		pluginsPath,
-		"workspace:ws-env",
 	)
 
 	if cfg.WorkspacePath != workspaceDir {
 		t.Errorf("expected WorkspacePath from env, got %q", cfg.WorkspacePath)
 	}
-	if cfg.AwarenessURL != "http://awareness:37800" {
-		t.Errorf("expected AwarenessURL from env, got %q", cfg.AwarenessURL)
-	}
 }
 
 // ==================== issueAndInjectToken (issue #418) ====================
@@ -1007,7 +998,7 @@ func TestSeedInitialMemories_Truncation(t *testing.T) {
 		WithArgs(sqlmock.AnyArg(), expectTruncated, "LOCAL", sqlmock.AnyArg()).
 		WillReturnResult(sqlmock.NewResult(0, 1))
 
-	seedInitialMemories(context.Background(), "ws-1066-test", memories, "test-ns")
+	seedInitialMemories(context.Background(), "ws-1066-test", memories)
 
 	if err := mock.ExpectationsWereMet(); err != nil {
 		t.Errorf("DB expectations not met: %v\n"+
@@ -1027,7 +1018,7 @@ func TestSeedInitialMemories_ContentUnderLimit(t *testing.T) {
 		WithArgs(sqlmock.AnyArg(), "short content", "TEAM", sqlmock.AnyArg()).
 		WillReturnResult(sqlmock.NewResult(0, 1))
 
-	seedInitialMemories(context.Background(), "ws-1066-under", memories, "test-ns")
+	seedInitialMemories(context.Background(), "ws-1066-under", memories)
 
 	if err := mock.ExpectationsWereMet(); err != nil {
 		t.Errorf("DB expectations not met: %v", err)
@@ -1052,7 +1043,7 @@ func TestSeedInitialMemories_ExactlyAtLimit(t *testing.T) {
 		WithArgs(sqlmock.AnyArg(), atLimitContent, "LOCAL", sqlmock.AnyArg()).
 		WillReturnResult(sqlmock.NewResult(0, 1))
 
-	seedInitialMemories(context.Background(), "ws-boundary", memories, "test-ns")
+	seedInitialMemories(context.Background(), "ws-boundary", memories)
 
 	if err := mock.ExpectationsWereMet(); err != nil {
 		t.Errorf("DB expectations not met: %v", err)
@@ -1068,7 +1059,7 @@ func TestSeedInitialMemories_EmptyContent(t *testing.T) {
 	}
 
 	// seedInitialMemories skips empty content at line 234 — no DB call expected.
-	seedInitialMemories(context.Background(), "ws-empty", memories, "test-ns")
+	seedInitialMemories(context.Background(), "ws-empty", memories)
 
 	if err := mock.ExpectationsWereMet(); err != nil {
 		t.Errorf("DB expectations not met: %v", err)
@@ -1092,7 +1083,7 @@ func TestSeedInitialMemories_OversizedWithSecrets(t *testing.T) {
 		WithArgs(sqlmock.AnyArg(), sqlmock.AnyArg(), "GLOBAL", sqlmock.AnyArg()).
 		WillReturnResult(sqlmock.NewResult(0, 1))
 
-	seedInitialMemories(context.Background(), "ws-secrets", memories, "test-ns")
+	seedInitialMemories(context.Background(), "ws-secrets", memories)
 
 	if err := mock.ExpectationsWereMet(); err != nil {
 		t.Errorf("DB expectations not met: %v", err)

workspace-server/internal/handlers/workspace_test.go

@@ -342,7 +342,7 @@ func TestWorkspaceCreate_DBInsertError(t *testing.T) {
 	// Transaction begins, workspace INSERT fails, transaction is rolled back.
 	mock.ExpectBegin()
 	mock.ExpectExec("INSERT INTO workspaces").
-		WithArgs(sqlmock.AnyArg(), "Failing Agent", nil, 3, "langgraph", sqlmock.AnyArg(), (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
+		WithArgs(sqlmock.AnyArg(), "Failing Agent", nil, 3, "langgraph", (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
 		WillReturnError(sql.ErrConnDone)
 	mock.ExpectRollback()
 
@@ -375,7 +375,7 @@ func TestWorkspaceCreate_DefaultsApplied(t *testing.T) {
 	// Expect workspace INSERT with defaulted tier=3 (Privileged — the
 	// handler default in workspace.go), runtime="langgraph"
 	mock.ExpectExec("INSERT INTO workspaces").
-		WithArgs(sqlmock.AnyArg(), "Default Agent", nil, 3, "langgraph", sqlmock.AnyArg(), (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
+		WithArgs(sqlmock.AnyArg(), "Default Agent", nil, 3, "langgraph", (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
 		WillReturnResult(sqlmock.NewResult(0, 1))
 	mock.ExpectCommit()
 
@@ -423,7 +423,7 @@ func TestWorkspaceCreate_SaaSHardForcesTier4(t *testing.T) {
 
 	mock.ExpectBegin()
 	mock.ExpectExec("INSERT INTO workspaces").
-		WithArgs(sqlmock.AnyArg(), "SaaS External Agent", nil, 4, "external", sqlmock.AnyArg(), (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
+		WithArgs(sqlmock.AnyArg(), "SaaS External Agent", nil, 4, "external", (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
 		WillReturnResult(sqlmock.NewResult(0, 1))
 	mock.ExpectCommit()
 	mock.ExpectExec("INSERT INTO canvas_layouts").
@@ -464,7 +464,7 @@ func TestWorkspaceCreate_WithSecrets_Persists(t *testing.T) {
 
 	mock.ExpectBegin()
 	mock.ExpectExec("INSERT INTO workspaces").
-		WithArgs(sqlmock.AnyArg(), "Hermes Agent", nil, 3, "hermes", sqlmock.AnyArg(), (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
+		WithArgs(sqlmock.AnyArg(), "Hermes Agent", nil, 3, "hermes", (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
 		WillReturnResult(sqlmock.NewResult(0, 1))
 	// Secret inserted inside the same transaction.
 	mock.ExpectExec("INSERT INTO workspace_secrets").
@@ -576,7 +576,7 @@ func TestWorkspaceCreate_ExternalURL_SSRFSafe(t *testing.T) {
 
 	mock.ExpectBegin()
 	mock.ExpectExec("INSERT INTO workspaces").
-		WithArgs(sqlmock.AnyArg(), "Ext Agent", nil, 3, "external", sqlmock.AnyArg(), (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
+		WithArgs(sqlmock.AnyArg(), "Ext Agent", nil, 3, "external", (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
 		WillReturnResult(sqlmock.NewResult(0, 1))
 	mock.ExpectCommit()
 	// External URL update (localhost is explicitly allowed by validateAgentURL).
@@ -615,7 +615,7 @@ func TestWorkspaceCreate_KimiRuntime_PreservesLabel(t *testing.T) {
 
 	mock.ExpectBegin()
 	mock.ExpectExec("INSERT INTO workspaces").
-		WithArgs(sqlmock.AnyArg(), "Kimi Agent", nil, 3, "kimi", sqlmock.AnyArg(), (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
+		WithArgs(sqlmock.AnyArg(), "Kimi Agent", nil, 3, "kimi", (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
 		WillReturnResult(sqlmock.NewResult(0, 1))
 	mock.ExpectCommit()
 	// Pre-register flow: awaiting_agent + runtime preserved as "kimi"
@@ -1639,7 +1639,7 @@ runtime_config:
 	mock.ExpectExec("INSERT INTO workspaces").
 		WithArgs(
 			sqlmock.AnyArg(), "Hermes Agent", nil, 3, "hermes",
-			sqlmock.AnyArg(), (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
+			(*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
 		WillReturnResult(sqlmock.NewResult(0, 1))
 	mock.ExpectCommit()
 	mock.ExpectExec("INSERT INTO canvas_layouts").
@@ -1696,7 +1696,7 @@ model: anthropic:claude-sonnet-4-5
 	mock.ExpectExec("INSERT INTO workspaces").
 		WithArgs(
 			sqlmock.AnyArg(), "Legacy Agent", nil, 3, "langgraph",
-			sqlmock.AnyArg(), (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
+			(*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
 		WillReturnResult(sqlmock.NewResult(0, 1))
 	mock.ExpectCommit()
 	mock.ExpectExec("INSERT INTO canvas_layouts").
@@ -1749,7 +1749,7 @@ runtime_config:
 	mock.ExpectExec("INSERT INTO workspaces").
 		WithArgs(
 			sqlmock.AnyArg(), "Custom Hermes", nil, 3, "hermes",
-			sqlmock.AnyArg(), (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
+			(*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
 		WillReturnResult(sqlmock.NewResult(0, 1))
 	mock.ExpectCommit()
 	mock.ExpectExec("INSERT INTO canvas_layouts").
@@ -1894,7 +1894,7 @@ func TestWorkspaceCreate_188_ExplicitRuntimeNoTemplate_OK(t *testing.T) {
 
 	mock.ExpectBegin()
 	mock.ExpectExec("INSERT INTO workspaces").
-		WithArgs(sqlmock.AnyArg(), "Explicit Codex", nil, 3, "codex", sqlmock.AnyArg(), (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
+		WithArgs(sqlmock.AnyArg(), "Explicit Codex", nil, 3, "codex", (*string)(nil), nil, "none", (*int64)(nil), models.DefaultMaxConcurrentTasks, "push").
 		WillReturnResult(sqlmock.NewResult(0, 1))
 	mock.ExpectCommit()
 	mock.ExpectExec("INSERT INTO canvas_layouts").

workspace-server/internal/models/workspace.go

@@ -17,7 +17,6 @@ type Workspace struct {
 	Name               string          `json:"name" db:"name"`
 	Role               sql.NullString  `json:"role" db:"role"`
 	Tier               int             `json:"tier" db:"tier"`
-	AwarenessNamespace sql.NullString  `json:"awareness_namespace" db:"awareness_namespace"`
 	Status             string          `json:"status" db:"status"`
 	SourceBundleID     sql.NullString  `json:"source_bundle_id" db:"source_bundle_id"`
 	AgentCard          json.RawMessage `json:"agent_card" db:"agent_card"`
@@ -207,7 +206,8 @@ type CreateWorkspacePayload struct {
 	} `json:"canvas"`
 	// InitialMemories is an optional list of memories to seed into the
 	// workspace immediately after creation. Each entry is inserted into
-	// agent_memories with the workspace's awareness namespace. Issue #1050.
+	// agent_memories under the workspace's v2 memory namespace
+	// ("workspace:<id>"). Issue #1050.
 	InitialMemories []MemorySeed `json:"initial_memories"`
 }
 

workspace-server/internal/provisioner/provisioner.go

@@ -103,8 +103,6 @@ type WorkspaceConfig struct {
 	Display            WorkspaceDisplayConfig
 	EnvVars            map[string]string // Additional env vars (API keys, etc.)
 	PlatformURL        string
-	AwarenessURL       string
-	AwarenessNamespace string
 	WorkspaceAccess    string // #65: "none" (default), "read_only", or "read_write"
 	ResetClaudeSession bool   // #12: if true, discard the claude-sessions volume before start (fresh session dir)
 
@@ -714,10 +712,6 @@ func buildContainerEnv(cfg WorkspaceConfig) []string {
 		// still override (Dockerfile ENV is overridden by docker -e at runtime).
 		"PYTHONPATH=/app",
 	}
-	if cfg.AwarenessNamespace != "" && cfg.AwarenessURL != "" {
-		env = append(env, fmt.Sprintf("AWARENESS_NAMESPACE=%s", cfg.AwarenessNamespace))
-		env = append(env, fmt.Sprintf("AWARENESS_URL=%s", cfg.AwarenessURL))
-	}
 	// #1687: track explicit GH_TOKEN / GITHUB_TOKEN so they win over GH_PAT
 	// alias. These are normally stripped by the SCM-write guard below, but
 	// when a user explicitly sets them we preserve the value.

workspace-server/internal/provisioner/provisioner_test.go

@@ -692,39 +692,6 @@ func TestBuildContainerEnv_MoleculeAIURLAlwaysMatchesPlatformURL(t *testing.T) {
 	}
 }
 
-func TestBuildContainerEnv_AwarenessOnlyWhenBothSet(t *testing.T) {
-	// Both set → both injected.
-	cfg := WorkspaceConfig{
-		WorkspaceID:        "ws-x",
-		PlatformURL:        "http://localhost:8080",
-		AwarenessURL:       "http://awareness:9000",
-		AwarenessNamespace: "ns-1",
-	}
-	env := buildContainerEnv(cfg)
-	hasNS := false
-	hasURL := false
-	for _, e := range env {
-		if e == "AWARENESS_NAMESPACE=ns-1" {
-			hasNS = true
-		}
-		if e == "AWARENESS_URL=http://awareness:9000" {
-			hasURL = true
-		}
-	}
-	if !hasNS || !hasURL {
-		t.Errorf("both awareness vars must be present: env=%v", env)
-	}
-
-	// Only namespace set → neither injected (must be both-or-nothing).
-	cfg.AwarenessURL = ""
-	env2 := buildContainerEnv(cfg)
-	for _, e := range env2 {
-		if strings.HasPrefix(e, "AWARENESS_") {
-			t.Errorf("awareness vars must NOT be injected when URL is missing: got %q", e)
-		}
-	}
-}
-
 func TestBuildContainerEnv_CustomEnvVarsAppended(t *testing.T) {
 	// NOTE: this test previously asserted GITHUB_TOKEN passed through
 	// verbatim. That assertion encoded the forensic #145 latent leak as

workspace-server/migrations/20260523130000_drop_workspaces_awareness_namespace.down.sql

@@ -0,0 +1,11 @@
+-- Reverse of 20260523130000_drop_workspaces_awareness_namespace.up.sql.
+--
+-- Restores the workspaces.awareness_namespace column verbatim from
+-- migration 010_workspace_awareness.sql so a down-cycle leaves the
+-- schema bit-identical to the pre-drop state. The column will be
+-- NULL on all rows after re-add — handlers no longer write to it and
+-- callers no longer read it, so this is functionally inert without
+-- a paired code revert.
+
+ALTER TABLE workspaces
+    ADD COLUMN IF NOT EXISTS awareness_namespace TEXT;

workspace-server/migrations/20260523130000_drop_workspaces_awareness_namespace.up.sql

@@ -0,0 +1,19 @@
+-- Issue #1735 — drop the workspaces.awareness_namespace column.
+--
+-- "Awareness namespaces" were a memory-routing surface (env vars
+-- AWARENESS_URL / AWARENESS_NAMESPACE) that was plumbed across the
+-- platform but never wired in any production or staging environment
+-- (verified 2026-05-23 via Railway GraphQL on the controlplane service:
+-- AWARENESS_* unset in both env IDs 59227671-… and 639539ec-…).
+--
+-- The column added by migration 010_workspace_awareness.sql was only
+-- ever populated with the canonical "workspace:<id>" string, which is
+-- also the v2 memory namespace string (see internal/memory/namespace/
+-- resolver.go:186). Removing the column does not change any agent-
+-- visible memory namespace — handlers now compute the same
+-- "workspace:<id>" string inline when inserting into agent_memories.
+--
+-- Related: #1733 (memory SSOT consolidation), #1734 (Memory tab bug).
+
+ALTER TABLE workspaces
+    DROP COLUMN IF EXISTS awareness_namespace;