diff --git a/cli/server.go b/cli/server.go
index 602f05d028b66..26d0c8f110403 100644
--- a/cli/server.go
+++ b/cli/server.go
@@ -1101,7 +1101,7 @@ func (r *RootCmd) Server(newAPI func(context.Context, *coderd.Options) (*coderd.
 			autobuildTicker := time.NewTicker(vals.AutobuildPollInterval.Value())
 			defer autobuildTicker.Stop()
 			autobuildExecutor := autobuild.NewExecutor(
-				ctx, options.Database, options.Pubsub, coderAPI.FileCache, options.PrometheusRegistry, coderAPI.TemplateScheduleStore, &coderAPI.Auditor, coderAPI.AccessControlStore, logger, autobuildTicker.C, options.NotificationsEnqueuer, coderAPI.Experiments)
+				ctx, options.Database, options.Pubsub, coderAPI.FileCache, options.PrometheusRegistry, coderAPI.TemplateScheduleStore, &coderAPI.Auditor, coderAPI.AccessControlStore, coderAPI.BuildUsageChecker, logger, autobuildTicker.C, options.NotificationsEnqueuer, coderAPI.Experiments)
 			autobuildExecutor.Run()
 
 			jobReaperTicker := time.NewTicker(vals.JobReaperDetectorInterval.Value())
diff --git a/coderd/autobuild/lifecycle_executor.go b/coderd/autobuild/lifecycle_executor.go
index d49bf831515d0..234a72de04c50 100644
--- a/coderd/autobuild/lifecycle_executor.go
+++ b/coderd/autobuild/lifecycle_executor.go
@@ -42,6 +42,7 @@ type Executor struct {
 	templateScheduleStore *atomic.Pointer[schedule.TemplateScheduleStore]
 	accessControlStore    *atomic.Pointer[dbauthz.AccessControlStore]
 	auditor               *atomic.Pointer[audit.Auditor]
+	buildUsageChecker     *atomic.Pointer[wsbuilder.UsageChecker]
 	log                   slog.Logger
 	tick                  <-chan time.Time
 	statsCh               chan<- Stats
@@ -65,7 +66,7 @@ type Stats struct {
 }
 
 // New returns a new wsactions executor.
-func NewExecutor(ctx context.Context, db database.Store, ps pubsub.Pubsub, fc *files.Cache, reg prometheus.Registerer, tss *atomic.Pointer[schedule.TemplateScheduleStore], auditor *atomic.Pointer[audit.Auditor], acs *atomic.Pointer[dbauthz.AccessControlStore], log slog.Logger, tick <-chan time.Time, enqueuer notifications.Enqueuer, exp codersdk.Experiments) *Executor {
+func NewExecutor(ctx context.Context, db database.Store, ps pubsub.Pubsub, fc *files.Cache, reg prometheus.Registerer, tss *atomic.Pointer[schedule.TemplateScheduleStore], auditor *atomic.Pointer[audit.Auditor], acs *atomic.Pointer[dbauthz.AccessControlStore], buildUsageChecker *atomic.Pointer[wsbuilder.UsageChecker], log slog.Logger, tick <-chan time.Time, enqueuer notifications.Enqueuer, exp codersdk.Experiments) *Executor {
 	factory := promauto.With(reg)
 	le := &Executor{
 		//nolint:gocritic // Autostart has a limited set of permissions.
@@ -78,6 +79,7 @@ func NewExecutor(ctx context.Context, db database.Store, ps pubsub.Pubsub, fc *f
 		log:                   log.Named("autobuild"),
 		auditor:               auditor,
 		accessControlStore:    acs,
+		buildUsageChecker:     buildUsageChecker,
 		notificationsEnqueuer: enqueuer,
 		reg:                   reg,
 		experiments:           exp,
@@ -279,7 +281,7 @@ func (e *Executor) runOnce(t time.Time) Stats {
 					}
 
 					if nextTransition != "" {
-						builder := wsbuilder.New(ws, nextTransition).
+						builder := wsbuilder.New(ws, nextTransition, *e.buildUsageChecker.Load()).
 							SetLastWorkspaceBuildInTx(&latestBuild).
 							SetLastWorkspaceBuildJobInTx(&latestJob).
 							Experiments(e.experiments).
diff --git a/coderd/coderd.go b/coderd/coderd.go
index fa10846a7d0a6..9115888fc566b 100644
--- a/coderd/coderd.go
+++ b/coderd/coderd.go
@@ -21,6 +21,7 @@ import (
 
 	"github.com/coder/coder/v2/coderd/oauth2provider"
 	"github.com/coder/coder/v2/coderd/prebuilds"
+	"github.com/coder/coder/v2/coderd/wsbuilder"
 
 	"github.com/andybalholm/brotli"
 	"github.com/go-chi/chi/v5"
@@ -559,6 +560,13 @@ func New(options *Options) *API {
 	// bugs that may only occur when a key isn't precached in tests and the latency cost is minimal.
 	cryptokeys.StartRotator(ctx, options.Logger, options.Database)
 
+	// AGPL uses a no-op build usage checker as there are no license
+	// entitlements to enforce. This is swapped out in
+	// enterprise/coderd/coderd.go.
+	var buildUsageChecker atomic.Pointer[wsbuilder.UsageChecker]
+	var noopUsageChecker wsbuilder.UsageChecker = wsbuilder.NoopUsageChecker{}
+	buildUsageChecker.Store(&noopUsageChecker)
+
 	api := &API{
 		ctx:          ctx,
 		cancel:       cancel,
@@ -579,6 +587,7 @@ func New(options *Options) *API {
 		TemplateScheduleStore:       options.TemplateScheduleStore,
 		UserQuietHoursScheduleStore: options.UserQuietHoursScheduleStore,
 		AccessControlStore:          options.AccessControlStore,
+		BuildUsageChecker:           &buildUsageChecker,
 		FileCache:                   files.New(options.PrometheusRegistry, options.Authorizer),
 		Experiments:                 experiments,
 		WebpushDispatcher:           options.WebPushDispatcher,
@@ -1650,6 +1659,9 @@ type API struct {
 	FileCache           *files.Cache
 	PrebuildsClaimer    atomic.Pointer[prebuilds.Claimer]
 	PrebuildsReconciler atomic.Pointer[prebuilds.ReconciliationOrchestrator]
+	// BuildUsageChecker is a pointer as it's passed around to multiple
+	// components.
+	BuildUsageChecker *atomic.Pointer[wsbuilder.UsageChecker]
 
 	UpdatesProvider tailnet.WorkspaceUpdatesProvider
 
diff --git a/coderd/coderdtest/coderdtest.go b/coderd/coderdtest/coderdtest.go
index 96030b215e5dd..7085068e97ff4 100644
--- a/coderd/coderdtest/coderdtest.go
+++ b/coderd/coderdtest/coderdtest.go
@@ -55,6 +55,7 @@ import (
 	"cdr.dev/slog/sloggers/slogtest"
 	"github.com/coder/coder/v2/archive"
 	"github.com/coder/coder/v2/coderd/files"
+	"github.com/coder/coder/v2/coderd/wsbuilder"
 	"github.com/coder/quartz"
 
 	"github.com/coder/coder/v2/coderd"
@@ -364,6 +365,10 @@ func NewOptions(t testing.TB, options *Options) (func(http.Handler), context.Can
 	}
 	connectionLogger.Store(&options.ConnectionLogger)
 
+	var buildUsageChecker atomic.Pointer[wsbuilder.UsageChecker]
+	var noopUsageChecker wsbuilder.UsageChecker = wsbuilder.NoopUsageChecker{}
+	buildUsageChecker.Store(&noopUsageChecker)
+
 	ctx, cancelFunc := context.WithCancel(context.Background())
 	experiments := coderd.ReadExperiments(*options.Logger, options.DeploymentValues.Experiments)
 	lifecycleExecutor := autobuild.NewExecutor(
@@ -375,6 +380,7 @@ func NewOptions(t testing.TB, options *Options) (func(http.Handler), context.Can
 		&templateScheduleStore,
 		&auditor,
 		accessControlStore,
+		&buildUsageChecker,
 		*options.Logger,
 		options.AutobuildTicker,
 		options.NotificationsEnqueuer,
diff --git a/coderd/database/dbauthz/dbauthz.go b/coderd/database/dbauthz/dbauthz.go
index a12db9aa6919f..257cbc6e6b142 100644
--- a/coderd/database/dbauthz/dbauthz.go
+++ b/coderd/database/dbauthz/dbauthz.go
@@ -2193,6 +2193,14 @@ func (q *querier) GetLogoURL(ctx context.Context) (string, error) {
 	return q.db.GetLogoURL(ctx)
 }
 
+func (q *querier) GetManagedAgentCount(ctx context.Context, arg database.GetManagedAgentCountParams) (int64, error) {
+	// Must be able to read all workspaces to check usage.
+	if err := q.authorizeContext(ctx, policy.ActionRead, rbac.ResourceWorkspace); err != nil {
+		return 0, xerrors.Errorf("authorize read all workspaces: %w", err)
+	}
+	return q.db.GetManagedAgentCount(ctx, arg)
+}
+
 func (q *querier) GetNotificationMessagesByStatus(ctx context.Context, arg database.GetNotificationMessagesByStatusParams) ([]database.NotificationMessage, error) {
 	if err := q.authorizeContext(ctx, policy.ActionRead, rbac.ResourceNotificationMessage); err != nil {
 		return nil, err
diff --git a/coderd/database/dbauthz/dbauthz_test.go b/coderd/database/dbauthz/dbauthz_test.go
index 2b0801024eb8d..bcf0caa95c365 100644
--- a/coderd/database/dbauthz/dbauthz_test.go
+++ b/coderd/database/dbauthz/dbauthz_test.go
@@ -17,20 +17,18 @@ import (
 	"golang.org/x/xerrors"
 
 	"cdr.dev/slog"
-
-	"github.com/coder/coder/v2/coderd/database/db2sdk"
-	"github.com/coder/coder/v2/coderd/notifications"
-	"github.com/coder/coder/v2/coderd/rbac/policy"
-	"github.com/coder/coder/v2/codersdk"
-
 	"github.com/coder/coder/v2/coderd/coderdtest"
 	"github.com/coder/coder/v2/coderd/database"
+	"github.com/coder/coder/v2/coderd/database/db2sdk"
 	"github.com/coder/coder/v2/coderd/database/dbauthz"
 	"github.com/coder/coder/v2/coderd/database/dbgen"
 	"github.com/coder/coder/v2/coderd/database/dbtestutil"
 	"github.com/coder/coder/v2/coderd/database/dbtime"
+	"github.com/coder/coder/v2/coderd/notifications"
 	"github.com/coder/coder/v2/coderd/rbac"
+	"github.com/coder/coder/v2/coderd/rbac/policy"
 	"github.com/coder/coder/v2/coderd/util/slice"
+	"github.com/coder/coder/v2/codersdk"
 	"github.com/coder/coder/v2/provisionersdk"
 	"github.com/coder/coder/v2/testutil"
 )
@@ -903,6 +901,14 @@ func (s *MethodTestSuite) TestLicense() {
 		require.NoError(s.T(), err)
 		check.Args().Asserts().Returns("value")
 	}))
+	s.Run("GetManagedAgentCount", s.Subtest(func(db database.Store, check *expects) {
+		start := dbtime.Now()
+		end := start.Add(time.Hour)
+		check.Args(database.GetManagedAgentCountParams{
+			StartTime: start,
+			EndTime:   end,
+		}).Asserts(rbac.ResourceWorkspace, policy.ActionRead).Returns(int64(0))
+	}))
 }
 
 func (s *MethodTestSuite) TestOrganization() {
diff --git a/coderd/database/dbmetrics/querymetrics.go b/coderd/database/dbmetrics/querymetrics.go
index d4e1db1612790..811d945ac7da9 100644
--- a/coderd/database/dbmetrics/querymetrics.go
+++ b/coderd/database/dbmetrics/querymetrics.go
@@ -964,6 +964,13 @@ func (m queryMetricsStore) GetLogoURL(ctx context.Context) (string, error) {
 	return url, err
 }
 
+func (m queryMetricsStore) GetManagedAgentCount(ctx context.Context, arg database.GetManagedAgentCountParams) (int64, error) {
+	start := time.Now()
+	r0, r1 := m.s.GetManagedAgentCount(ctx, arg)
+	m.queryLatencies.WithLabelValues("GetManagedAgentCount").Observe(time.Since(start).Seconds())
+	return r0, r1
+}
+
 func (m queryMetricsStore) GetNotificationMessagesByStatus(ctx context.Context, arg database.GetNotificationMessagesByStatusParams) ([]database.NotificationMessage, error) {
 	start := time.Now()
 	r0, r1 := m.s.GetNotificationMessagesByStatus(ctx, arg)
diff --git a/coderd/database/dbmock/dbmock.go b/coderd/database/dbmock/dbmock.go
index f3ed6c2bc78ca..b20c3d06209b5 100644
--- a/coderd/database/dbmock/dbmock.go
+++ b/coderd/database/dbmock/dbmock.go
@@ -2012,6 +2012,21 @@ func (mr *MockStoreMockRecorder) GetLogoURL(ctx any) *gomock.Call {
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetLogoURL", reflect.TypeOf((*MockStore)(nil).GetLogoURL), ctx)
 }
 
+// GetManagedAgentCount mocks base method.
+func (m *MockStore) GetManagedAgentCount(ctx context.Context, arg database.GetManagedAgentCountParams) (int64, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "GetManagedAgentCount", ctx, arg)
+	ret0, _ := ret[0].(int64)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// GetManagedAgentCount indicates an expected call of GetManagedAgentCount.
+func (mr *MockStoreMockRecorder) GetManagedAgentCount(ctx, arg any) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetManagedAgentCount", reflect.TypeOf((*MockStore)(nil).GetManagedAgentCount), ctx, arg)
+}
+
 // GetNotificationMessagesByStatus mocks base method.
 func (m *MockStore) GetNotificationMessagesByStatus(ctx context.Context, arg database.GetNotificationMessagesByStatusParams) ([]database.NotificationMessage, error) {
 	m.ctrl.T.Helper()
diff --git a/coderd/database/querier.go b/coderd/database/querier.go
index 6471d79defa6c..baa5d8590b1d7 100644
--- a/coderd/database/querier.go
+++ b/coderd/database/querier.go
@@ -216,6 +216,8 @@ type sqlcQuerier interface {
 	GetLicenseByID(ctx context.Context, id int32) (License, error)
 	GetLicenses(ctx context.Context) ([]License, error)
 	GetLogoURL(ctx context.Context) (string, error)
+	// This isn't strictly a license query, but it's related to license enforcement.
+	GetManagedAgentCount(ctx context.Context, arg GetManagedAgentCountParams) (int64, error)
 	GetNotificationMessagesByStatus(ctx context.Context, arg GetNotificationMessagesByStatusParams) ([]NotificationMessage, error)
 	// Fetch the notification report generator log indicating recent activity.
 	GetNotificationReportGeneratorLogByTemplate(ctx context.Context, templateID uuid.UUID) (NotificationReportGeneratorLog, error)
diff --git a/coderd/database/queries.sql.go b/coderd/database/queries.sql.go
index 47d46a4e74a8b..4bf01000de0ec 100644
--- a/coderd/database/queries.sql.go
+++ b/coderd/database/queries.sql.go
@@ -4286,6 +4286,44 @@ func (q *sqlQuerier) GetLicenses(ctx context.Context) ([]License, error) {
 	return items, nil
 }
 
+const getManagedAgentCount = `-- name: GetManagedAgentCount :one
+SELECT
+	COUNT(DISTINCT wb.id) AS count
+FROM
+	workspace_builds AS wb
+JOIN
+	provisioner_jobs AS pj
+ON
+	wb.job_id = pj.id
+WHERE
+	wb.transition = 'start'::workspace_transition
+	AND wb.has_ai_task = true
+	-- Only count jobs that are pending, running or succeeded. Other statuses
+	-- like cancel(ed|ing), failed or unknown are not considered as managed
+	-- agent usage. These workspace builds are typically unusable anyway.
+	AND pj.job_status IN (
+		'pending'::provisioner_job_status,
+		'running'::provisioner_job_status,
+		'succeeded'::provisioner_job_status
+	)
+	-- Jobs are counted at the time they are created, not when they are
+	-- completed, as pending jobs haven't completed yet.
+	AND wb.created_at BETWEEN $1::timestamptz AND $2::timestamptz
+`
+
+type GetManagedAgentCountParams struct {
+	StartTime time.Time `db:"start_time" json:"start_time"`
+	EndTime   time.Time `db:"end_time" json:"end_time"`
+}
+
+// This isn't strictly a license query, but it's related to license enforcement.
+func (q *sqlQuerier) GetManagedAgentCount(ctx context.Context, arg GetManagedAgentCountParams) (int64, error) {
+	row := q.db.QueryRowContext(ctx, getManagedAgentCount, arg.StartTime, arg.EndTime)
+	var count int64
+	err := row.Scan(&count)
+	return count, err
+}
+
 const getUnexpiredLicenses = `-- name: GetUnexpiredLicenses :many
 SELECT id, uploaded_at, jwt, exp, uuid
 FROM licenses
diff --git a/coderd/database/queries/licenses.sql b/coderd/database/queries/licenses.sql
index 3512a46514787..ac864a94d1792 100644
--- a/coderd/database/queries/licenses.sql
+++ b/coderd/database/queries/licenses.sql
@@ -35,3 +35,28 @@ DELETE
 FROM licenses
 WHERE id = $1
 RETURNING id;
+
+-- name: GetManagedAgentCount :one
+-- This isn't strictly a license query, but it's related to license enforcement.
+SELECT
+	COUNT(DISTINCT wb.id) AS count
+FROM
+	workspace_builds AS wb
+JOIN
+	provisioner_jobs AS pj
+ON
+	wb.job_id = pj.id
+WHERE
+	wb.transition = 'start'::workspace_transition
+	AND wb.has_ai_task = true
+	-- Only count jobs that are pending, running or succeeded. Other statuses
+	-- like cancel(ed|ing), failed or unknown are not considered as managed
+	-- agent usage. These workspace builds are typically unusable anyway.
+	AND pj.job_status IN (
+		'pending'::provisioner_job_status,
+		'running'::provisioner_job_status,
+		'succeeded'::provisioner_job_status
+	)
+	-- Jobs are counted at the time they are created, not when they are
+	-- completed, as pending jobs haven't completed yet.
+	AND wb.created_at BETWEEN @start_time::timestamptz AND @end_time::timestamptz;
diff --git a/coderd/workspacebuilds.go b/coderd/workspacebuilds.go
index 88774c63368ca..884a963405007 100644
--- a/coderd/workspacebuilds.go
+++ b/coderd/workspacebuilds.go
@@ -335,7 +335,7 @@ func (api *API) postWorkspaceBuilds(rw http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	builder := wsbuilder.New(workspace, database.WorkspaceTransition(createBuild.Transition)).
+	builder := wsbuilder.New(workspace, database.WorkspaceTransition(createBuild.Transition), *api.BuildUsageChecker.Load()).
 		Initiator(apiKey.UserID).
 		RichParameterValues(createBuild.RichParameterValues).
 		LogLevel(string(createBuild.LogLevel)).
diff --git a/coderd/workspaces.go b/coderd/workspaces.go
index 32b412946907e..0f3f0a24c75d3 100644
--- a/coderd/workspaces.go
+++ b/coderd/workspaces.go
@@ -701,7 +701,7 @@ func createWorkspace(
 			return xerrors.Errorf("get workspace by ID: %w", err)
 		}
 
-		builder := wsbuilder.New(workspace, database.WorkspaceTransitionStart).
+		builder := wsbuilder.New(workspace, database.WorkspaceTransitionStart, *api.BuildUsageChecker.Load()).
 			Reason(database.BuildReasonInitiator).
 			Initiator(initiatorID).
 			ActiveVersion().
diff --git a/coderd/wsbuilder/wsbuilder.go b/coderd/wsbuilder/wsbuilder.go
index d608682c58eee..52567b463baac 100644
--- a/coderd/wsbuilder/wsbuilder.go
+++ b/coderd/wsbuilder/wsbuilder.go
@@ -56,6 +56,7 @@ type Builder struct {
 	logLevel         string
 	deploymentValues *codersdk.DeploymentValues
 	experiments      codersdk.Experiments
+	usageChecker     UsageChecker
 
 	richParameterValues     []codersdk.WorkspaceBuildParameter
 	initiator               uuid.UUID
@@ -89,7 +90,24 @@ type Builder struct {
 	verifyNoLegacyParametersOnce bool
 }
 
-type Option func(Builder) Builder
+type UsageChecker interface {
+	CheckBuildUsage(ctx context.Context, store database.Store, templateVersion *database.TemplateVersion) (UsageCheckResponse, error)
+}
+
+type UsageCheckResponse struct {
+	Permitted bool
+	Message   string
+}
+
+type NoopUsageChecker struct{}
+
+var _ UsageChecker = NoopUsageChecker{}
+
+func (NoopUsageChecker) CheckBuildUsage(_ context.Context, _ database.Store, _ *database.TemplateVersion) (UsageCheckResponse, error) {
+	return UsageCheckResponse{
+		Permitted: true,
+	}, nil
+}
 
 // versionTarget expresses how to determine the template version for the build.
 //
@@ -121,8 +139,8 @@ type stateTarget struct {
 	explicit *[]byte
 }
 
-func New(w database.Workspace, t database.WorkspaceTransition) Builder {
-	return Builder{workspace: w, trans: t}
+func New(w database.Workspace, t database.WorkspaceTransition, uc UsageChecker) Builder {
+	return Builder{workspace: w, trans: t, usageChecker: uc}
 }
 
 // Methods that customize the build are public, have a struct receiver and return a new Builder.
@@ -321,6 +339,10 @@ func (b *Builder) buildTx(authFunc func(action policy.Action, object rbac.Object
 	if err != nil {
 		return nil, nil, nil, err
 	}
+	err = b.checkUsage()
+	if err != nil {
+		return nil, nil, nil, err
+	}
 	err = b.checkRunningBuild()
 	if err != nil {
 		return nil, nil, nil, err
@@ -1253,6 +1275,23 @@ func (b *Builder) checkTemplateJobStatus() error {
 	return nil
 }
 
+func (b *Builder) checkUsage() error {
+	templateVersion, err := b.getTemplateVersion()
+	if err != nil {
+		return BuildError{http.StatusInternalServerError, "Failed to fetch template version", err}
+	}
+
+	resp, err := b.usageChecker.CheckBuildUsage(b.ctx, b.store, templateVersion)
+	if err != nil {
+		return BuildError{http.StatusInternalServerError, "Failed to check build usage", err}
+	}
+	if !resp.Permitted {
+		return BuildError{http.StatusForbidden, "Build is not permitted: " + resp.Message, nil}
+	}
+
+	return nil
+}
+
 func (b *Builder) checkRunningBuild() error {
 	job, err := b.getLastBuildJob()
 	if xerrors.Is(err, sql.ErrNoRows) {
diff --git a/coderd/wsbuilder/wsbuilder_test.go b/coderd/wsbuilder/wsbuilder_test.go
index 41ea3fe2c9921..ee421a8adb649 100644
--- a/coderd/wsbuilder/wsbuilder_test.go
+++ b/coderd/wsbuilder/wsbuilder_test.go
@@ -5,30 +5,30 @@ import (
 	"database/sql"
 	"encoding/json"
 	"net/http"
+	"sync/atomic"
 	"testing"
 	"time"
 
-	"github.com/prometheus/client_golang/prometheus"
-
-	"github.com/coder/coder/v2/coderd/coderdtest"
-	"github.com/coder/coder/v2/coderd/files"
-	"github.com/coder/coder/v2/coderd/httpapi/httperror"
-	"github.com/coder/coder/v2/provisionersdk"
-
 	"github.com/google/uuid"
+	"github.com/prometheus/client_golang/prometheus"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/propagation"
 	"go.uber.org/mock/gomock"
+	"golang.org/x/xerrors"
 
 	"github.com/coder/coder/v2/coderd/audit"
+	"github.com/coder/coder/v2/coderd/coderdtest"
 	"github.com/coder/coder/v2/coderd/database"
 	"github.com/coder/coder/v2/coderd/database/dbmock"
 	"github.com/coder/coder/v2/coderd/database/dbtime"
+	"github.com/coder/coder/v2/coderd/files"
+	"github.com/coder/coder/v2/coderd/httpapi/httperror"
 	"github.com/coder/coder/v2/coderd/provisionerdserver"
 	"github.com/coder/coder/v2/coderd/wsbuilder"
 	"github.com/coder/coder/v2/codersdk"
+	"github.com/coder/coder/v2/provisionersdk"
 )
 
 var (
@@ -102,7 +102,7 @@ func TestBuilder_NoOptions(t *testing.T) {
 	fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 
 	ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-	uut := wsbuilder.New(ws, database.WorkspaceTransitionStart)
+	uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, wsbuilder.NoopUsageChecker{})
 	// nolint: dogsled
 	_, _, _, err := uut.Build(ctx, mDB, fc, nil, audit.WorkspaceBuildBaggage{})
 	req.NoError(err)
@@ -142,7 +142,8 @@ func TestBuilder_Initiator(t *testing.T) {
 	fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 
 	ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-	uut := wsbuilder.New(ws, database.WorkspaceTransitionStart).Initiator(otherUserID)
+	uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, wsbuilder.NoopUsageChecker{}).
+		Initiator(otherUserID)
 	// nolint: dogsled
 	_, _, _, err := uut.Build(ctx, mDB, fc, nil, audit.WorkspaceBuildBaggage{})
 	req.NoError(err)
@@ -188,7 +189,8 @@ func TestBuilder_Baggage(t *testing.T) {
 	fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 
 	ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-	uut := wsbuilder.New(ws, database.WorkspaceTransitionStart).Initiator(otherUserID)
+	uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, wsbuilder.NoopUsageChecker{}).
+		Initiator(otherUserID)
 	// nolint: dogsled
 	_, _, _, err := uut.Build(ctx, mDB, fc, nil, audit.WorkspaceBuildBaggage{IP: "127.0.0.1"})
 	req.NoError(err)
@@ -227,7 +229,8 @@ func TestBuilder_Reason(t *testing.T) {
 	fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 
 	ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-	uut := wsbuilder.New(ws, database.WorkspaceTransitionStart).Reason(database.BuildReasonAutostart)
+	uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, wsbuilder.NoopUsageChecker{}).
+		Reason(database.BuildReasonAutostart)
 	// nolint: dogsled
 	_, _, _, err := uut.Build(ctx, mDB, fc, nil, audit.WorkspaceBuildBaggage{})
 	req.NoError(err)
@@ -271,7 +274,8 @@ func TestBuilder_ActiveVersion(t *testing.T) {
 	fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 
 	ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-	uut := wsbuilder.New(ws, database.WorkspaceTransitionStart).ActiveVersion()
+	uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, wsbuilder.NoopUsageChecker{}).
+		ActiveVersion()
 	// nolint: dogsled
 	_, _, _, err := uut.Build(ctx, mDB, fc, nil, audit.WorkspaceBuildBaggage{})
 	req.NoError(err)
@@ -386,7 +390,8 @@ func TestWorkspaceBuildWithTags(t *testing.T) {
 	fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 
 	ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-	uut := wsbuilder.New(ws, database.WorkspaceTransitionStart).RichParameterValues(buildParameters)
+	uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, wsbuilder.NoopUsageChecker{}).
+		RichParameterValues(buildParameters)
 	// nolint: dogsled
 	_, _, _, err := uut.Build(ctx, mDB, fc, nil, audit.WorkspaceBuildBaggage{})
 	req.NoError(err)
@@ -469,7 +474,8 @@ func TestWorkspaceBuildWithRichParameters(t *testing.T) {
 		fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 
 		ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-		uut := wsbuilder.New(ws, database.WorkspaceTransitionStart).RichParameterValues(nextBuildParameters)
+		uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, wsbuilder.NoopUsageChecker{}).
+			RichParameterValues(nextBuildParameters)
 		// nolint: dogsled
 		_, _, _, err := uut.Build(ctx, mDB, fc, nil, audit.WorkspaceBuildBaggage{})
 		req.NoError(err)
@@ -517,7 +523,8 @@ func TestWorkspaceBuildWithRichParameters(t *testing.T) {
 		fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 
 		ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-		uut := wsbuilder.New(ws, database.WorkspaceTransitionStart).RichParameterValues(nextBuildParameters)
+		uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, wsbuilder.NoopUsageChecker{}).
+			RichParameterValues(nextBuildParameters)
 		// nolint: dogsled
 		_, _, _, err := uut.Build(ctx, mDB, fc, nil, audit.WorkspaceBuildBaggage{})
 		req.NoError(err)
@@ -555,7 +562,8 @@ func TestWorkspaceBuildWithRichParameters(t *testing.T) {
 		fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 
 		ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-		uut := wsbuilder.New(ws, database.WorkspaceTransitionStart)
+		uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, wsbuilder.NoopUsageChecker{})
+		// nolint: dogsled
 		_, _, _, err := uut.Build(ctx, mDB, fc, nil, audit.WorkspaceBuildBaggage{})
 		bldErr := wsbuilder.BuildError{}
 		req.ErrorAs(err, &bldErr)
@@ -591,7 +599,8 @@ func TestWorkspaceBuildWithRichParameters(t *testing.T) {
 		fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 
 		ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-		uut := wsbuilder.New(ws, database.WorkspaceTransitionStart).RichParameterValues(nextBuildParameters)
+		uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, wsbuilder.NoopUsageChecker{}).
+			RichParameterValues(nextBuildParameters)
 		// nolint: dogsled
 		_, _, _, err := uut.Build(ctx, mDB, fc, nil, audit.WorkspaceBuildBaggage{})
 		bldErr := wsbuilder.BuildError{}
@@ -656,7 +665,7 @@ func TestWorkspaceBuildWithRichParameters(t *testing.T) {
 		fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 
 		ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-		uut := wsbuilder.New(ws, database.WorkspaceTransitionStart).
+		uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, wsbuilder.NoopUsageChecker{}).
 			RichParameterValues(nextBuildParameters).
 			VersionID(activeVersionID)
 		_, _, _, err := uut.Build(ctx, mDB, fc, nil, audit.WorkspaceBuildBaggage{})
@@ -720,7 +729,7 @@ func TestWorkspaceBuildWithRichParameters(t *testing.T) {
 		fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 
 		ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-		uut := wsbuilder.New(ws, database.WorkspaceTransitionStart).
+		uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, wsbuilder.NoopUsageChecker{}).
 			RichParameterValues(nextBuildParameters).
 			VersionID(activeVersionID)
 		_, _, _, err := uut.Build(ctx, mDB, fc, nil, audit.WorkspaceBuildBaggage{})
@@ -782,7 +791,7 @@ func TestWorkspaceBuildWithRichParameters(t *testing.T) {
 		fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 
 		ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-		uut := wsbuilder.New(ws, database.WorkspaceTransitionStart).
+		uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, wsbuilder.NoopUsageChecker{}).
 			RichParameterValues(nextBuildParameters).
 			VersionID(activeVersionID)
 		// nolint: dogsled
@@ -849,7 +858,7 @@ func TestWorkspaceBuildWithPreset(t *testing.T) {
 	fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 
 	ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-	uut := wsbuilder.New(ws, database.WorkspaceTransitionStart).
+	uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, wsbuilder.NoopUsageChecker{}).
 		ActiveVersion().
 		TemplateVersionPresetID(presetID)
 	// nolint: dogsled
@@ -916,7 +925,7 @@ func TestWorkspaceBuildDeleteOrphan(t *testing.T) {
 		)
 
 		ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-		uut := wsbuilder.New(ws, database.WorkspaceTransitionDelete).Orphan()
+		uut := wsbuilder.New(ws, database.WorkspaceTransitionDelete, wsbuilder.NoopUsageChecker{}).Orphan()
 		fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 
 		// nolint: dogsled
@@ -993,7 +1002,7 @@ func TestWorkspaceBuildDeleteOrphan(t *testing.T) {
 		)
 
 		ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
-		uut := wsbuilder.New(ws, database.WorkspaceTransitionDelete).Orphan()
+		uut := wsbuilder.New(ws, database.WorkspaceTransitionDelete, wsbuilder.NoopUsageChecker{}).Orphan()
 		fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 		// nolint: dogsled
 		_, _, _, err := uut.Build(ctx, mDB, fc, nil, audit.WorkspaceBuildBaggage{})
@@ -1001,6 +1010,115 @@ func TestWorkspaceBuildDeleteOrphan(t *testing.T) {
 	})
 }
 
+func TestWorkspaceBuildUsageChecker(t *testing.T) {
+	t.Parallel()
+
+	t.Run("Permitted", func(t *testing.T) {
+		t.Parallel()
+
+		ctx, cancel := context.WithCancel(context.Background())
+		defer cancel()
+
+		var calls int64
+		fakeUsageChecker := &fakeUsageChecker{
+			checkBuildUsageFunc: func(_ context.Context, _ database.Store, templateVersion *database.TemplateVersion) (wsbuilder.UsageCheckResponse, error) {
+				atomic.AddInt64(&calls, 1)
+				return wsbuilder.UsageCheckResponse{Permitted: true}, nil
+			},
+		}
+
+		mDB := expectDB(t,
+			// Inputs
+			withTemplate,
+			withInactiveVersion(nil),
+			withLastBuildFound,
+			withTemplateVersionVariables(inactiveVersionID, nil),
+			withRichParameters(nil),
+			withParameterSchemas(inactiveJobID, nil),
+			withWorkspaceTags(inactiveVersionID, nil),
+			withProvisionerDaemons([]database.GetEligibleProvisionerDaemonsByProvisionerJobIDsRow{}),
+
+			// Outputs
+			expectProvisionerJob(func(job database.InsertProvisionerJobParams) {}),
+			withInTx,
+			expectBuild(func(bld database.InsertWorkspaceBuildParams) {}),
+			withBuild,
+			expectBuildParameters(func(params database.InsertWorkspaceBuildParametersParams) {}),
+		)
+		fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
+
+		ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
+		uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, fakeUsageChecker)
+		// nolint: dogsled
+		_, _, _, err := uut.Build(ctx, mDB, fc, nil, audit.WorkspaceBuildBaggage{})
+		require.NoError(t, err)
+		require.EqualValues(t, 1, calls)
+	})
+
+	// The failure cases are mostly identical from a test perspective.
+	const message = "fake test message"
+	cases := []struct {
+		name        string
+		response    wsbuilder.UsageCheckResponse
+		responseErr error
+		assertions  func(t *testing.T, err error)
+	}{
+		{
+			name: "NotPermitted",
+			response: wsbuilder.UsageCheckResponse{
+				Permitted: false,
+				Message:   message,
+			},
+			assertions: func(t *testing.T, err error) {
+				require.ErrorContains(t, err, message)
+				var buildErr wsbuilder.BuildError
+				require.ErrorAs(t, err, &buildErr)
+				require.Equal(t, http.StatusForbidden, buildErr.Status)
+			},
+		},
+		{
+			name:        "Error",
+			responseErr: xerrors.New("fake error"),
+			assertions: func(t *testing.T, err error) {
+				require.ErrorContains(t, err, "fake error")
+				require.ErrorAs(t, err, &wsbuilder.BuildError{})
+			},
+		},
+	}
+
+	for _, c := range cases {
+		c := c
+		t.Run(c.name, func(t *testing.T) {
+			t.Parallel()
+
+			ctx, cancel := context.WithCancel(context.Background())
+			defer cancel()
+
+			var calls int64
+			fakeUsageChecker := &fakeUsageChecker{
+				checkBuildUsageFunc: func(_ context.Context, _ database.Store, templateVersion *database.TemplateVersion) (wsbuilder.UsageCheckResponse, error) {
+					atomic.AddInt64(&calls, 1)
+					return c.response, c.responseErr
+				},
+			}
+
+			mDB := expectDB(t,
+				withTemplate,
+				withInactiveVersionNoParams(),
+			)
+			fc := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
+
+			ws := database.Workspace{ID: workspaceID, TemplateID: templateID, OwnerID: userID}
+			uut := wsbuilder.New(ws, database.WorkspaceTransitionStart, fakeUsageChecker).
+				VersionID(inactiveVersionID)
+			// nolint: dogsled
+			_, _, _, err := uut.Build(ctx, mDB, fc, nil, audit.WorkspaceBuildBaggage{})
+			c.assertions(t, err)
+			require.EqualValues(t, 1, calls)
+		})
+	}
+}
+
 func TestWsbuildError(t *testing.T) {
 	t.Parallel()
 
@@ -1366,3 +1484,11 @@ func withProvisionerDaemons(provisionerDaemons []database.GetEligibleProvisioner
 		mTx.EXPECT().GetEligibleProvisionerDaemonsByProvisionerJobIDs(gomock.Any(), gomock.Any()).Return(provisionerDaemons, nil)
 	}
 }
+
+type fakeUsageChecker struct {
+	checkBuildUsageFunc func(ctx context.Context, store database.Store, templateVersion *database.TemplateVersion) (wsbuilder.UsageCheckResponse, error)
+}
+
+func (f *fakeUsageChecker) CheckBuildUsage(ctx context.Context, store database.Store, templateVersion *database.TemplateVersion) (wsbuilder.UsageCheckResponse, error) {
+	return f.checkBuildUsageFunc(ctx, store, templateVersion)
+}
diff --git a/enterprise/coderd/coderd.go b/enterprise/coderd/coderd.go
index 0d176567713a2..d6e47f4cfdf00 100644
--- a/enterprise/coderd/coderd.go
+++ b/enterprise/coderd/coderd.go
@@ -22,6 +22,7 @@ import (
 	agplportsharing "github.com/coder/coder/v2/coderd/portsharing"
 	agplprebuilds "github.com/coder/coder/v2/coderd/prebuilds"
 	"github.com/coder/coder/v2/coderd/rbac/policy"
+	"github.com/coder/coder/v2/coderd/wsbuilder"
 	"github.com/coder/coder/v2/enterprise/coderd/connectionlog"
 	"github.com/coder/coder/v2/enterprise/coderd/enidpsync"
 	"github.com/coder/coder/v2/enterprise/coderd/portsharing"
@@ -916,10 +917,70 @@ func (api *API) updateEntitlements(ctx context.Context) error {
 			reloadedEntitlements.Warnings = append(reloadedEntitlements.Warnings, msg)
 		}
 		reloadedEntitlements.Features[codersdk.FeatureExternalTokenEncryption] = featureExternalTokenEncryption
+
+		// If there's a license installed, we will use the enterprise build
+		// limit checker.
+		// This checker currently only enforces the managed agent limit.
+		if reloadedEntitlements.HasLicense {
+			var checker wsbuilder.UsageChecker = api
+			api.AGPL.BuildUsageChecker.Store(&checker)
+		} else {
+			// Don't check any usage, just like AGPL.
+			var checker wsbuilder.UsageChecker = wsbuilder.NoopUsageChecker{}
+			api.AGPL.BuildUsageChecker.Store(&checker)
+		}
+
 		return reloadedEntitlements, nil
 	})
 }
 
+var _ wsbuilder.UsageChecker = &API{}
+
+func (api *API) CheckBuildUsage(ctx context.Context, store database.Store, templateVersion *database.TemplateVersion) (wsbuilder.UsageCheckResponse, error) {
+	// We assume that if this function is called, a valid license is installed.
+	// When there are no licenses installed, a noop usage checker is used
+	// instead.
+
+	// If the template version doesn't have an AI task, we don't need to check
+	// usage.
+	if !templateVersion.HasAITask.Valid || !templateVersion.HasAITask.Bool {
+		return wsbuilder.UsageCheckResponse{
+			Permitted: true,
+		}, nil
+	}
+
+	// Otherwise, we need to check that we haven't breached the managed agent
+	// limit.
+	managedAgentLimit, ok := api.Entitlements.Feature(codersdk.FeatureManagedAgentLimit)
+	if !ok || !managedAgentLimit.Enabled || managedAgentLimit.Limit == nil || managedAgentLimit.UsagePeriod == nil {
+		return wsbuilder.UsageCheckResponse{
+			Permitted: false,
+			Message:   "Your license is not entitled to managed agents. Please contact sales to continue using managed agents.",
+		}, nil
+	}
+
+	// This check is intentionally not committed to the database. It's fine if
+	// it's not 100% accurate or allows for minor breaches due to build races.
+	managedAgentCount, err := store.GetManagedAgentCount(ctx, database.GetManagedAgentCountParams{
+		StartTime: managedAgentLimit.UsagePeriod.Start,
+		EndTime:   managedAgentLimit.UsagePeriod.End,
+	})
+	if err != nil {
+		return wsbuilder.UsageCheckResponse{}, xerrors.Errorf("get managed agent count: %w", err)
+	}
+
+	if managedAgentCount >= *managedAgentLimit.Limit {
+		return wsbuilder.UsageCheckResponse{
+			Permitted: false,
+			Message:   "You have breached the managed agent limit in your license. Please contact sales to continue using managed agents.",
+		}, nil
+	}
+
+	return wsbuilder.UsageCheckResponse{
+		Permitted: true,
+	}, nil
+}
+
 // getProxyDERPStartingRegionID returns the starting region ID that should be
 // used for workspace proxies. A proxy's actual region ID is the return value
 // from this function + it's RegionID field.
@@ -1186,6 +1247,6 @@ func (api *API) setupPrebuilds(featureEnabled bool) (agplprebuilds.Reconciliatio
 	}
 
 	reconciler := prebuilds.NewStoreReconciler(api.Database, api.Pubsub, api.AGPL.FileCache, api.DeploymentValues.Prebuilds,
-		api.Logger.Named("prebuilds"), quartz.NewReal(), api.PrometheusRegistry, api.NotificationsEnqueuer)
+		api.Logger.Named("prebuilds"), quartz.NewReal(), api.PrometheusRegistry, api.NotificationsEnqueuer, api.AGPL.BuildUsageChecker)
 	return reconciler, prebuilds.NewEnterpriseClaimer(api.Database)
 }
diff --git a/enterprise/coderd/coderd_test.go b/enterprise/coderd/coderd_test.go
index 52301f6dae034..42645a98b06c2 100644
--- a/enterprise/coderd/coderd_test.go
+++ b/enterprise/coderd/coderd_test.go
@@ -32,6 +32,8 @@ import (
 	"github.com/coder/coder/v2/coderd/rbac/policy"
 	"github.com/coder/coder/v2/coderd/util/ptr"
 	"github.com/coder/coder/v2/enterprise/coderd/prebuilds"
+	"github.com/coder/coder/v2/provisioner/echo"
+	"github.com/coder/coder/v2/provisionersdk/proto"
 	"github.com/coder/coder/v2/tailnet/tailnettest"
 
 	"github.com/coder/retry"
@@ -621,6 +623,88 @@ func TestSCIMDisabled(t *testing.T) {
 	}
 }
 
+func TestManagedAgentLimit(t *testing.T) {
+	t.Parallel()
+
+	cli, _ := coderdenttest.New(t, &coderdenttest.Options{
+		Options: &coderdtest.Options{
+			IncludeProvisionerDaemon: true,
+		},
+		LicenseOptions: (&coderdenttest.LicenseOptions{}).ManagedAgentLimit(1, 1),
+	})
+
+	// It's fine that the app ID is only used in a single successful workspace
+	// build.
+	appID := uuid.NewString()
+	echoRes := &echo.Responses{
+		Parse: echo.ParseComplete,
+		ProvisionPlan: []*proto.Response{
+			{
+				Type: &proto.Response_Plan{
+					Plan: &proto.PlanComplete{
+						Plan:        []byte("{}"),
+						ModuleFiles: []byte{},
+						HasAiTasks:  true,
+					},
+				},
+			},
+		},
+		ProvisionApply: []*proto.Response{{
+			Type: &proto.Response_Apply{
+				Apply: &proto.ApplyComplete{
+					Resources: []*proto.Resource{{
+						Name: "example",
+						Type: "aws_instance",
+						Agents: []*proto.Agent{{
+							Id:   uuid.NewString(),
+							Name: "example",
+							Auth: &proto.Agent_Token{
+								Token: uuid.NewString(),
+							},
+							Apps: []*proto.App{{
+								Id:   appID,
+								Slug: "test",
+								Url:  "http://localhost:1234",
+							}},
+						}},
+					}},
+					AiTasks: []*proto.AITask{{
+						Id: uuid.NewString(),
+						SidebarApp: &proto.AITaskSidebarApp{
+							Id: appID,
+						},
+					}},
+				},
+			},
+		}},
+	}
+
+	// Create two templates, one with AI and one without.
+	aiVersion := coderdtest.CreateTemplateVersion(t, cli, uuid.Nil, echoRes)
+	coderdtest.AwaitTemplateVersionJobCompleted(t, cli, aiVersion.ID)
+	aiTemplate := coderdtest.CreateTemplate(t, cli, uuid.Nil, aiVersion.ID)
+	noAiVersion := coderdtest.CreateTemplateVersion(t, cli, uuid.Nil, nil) // use default responses
+	coderdtest.AwaitTemplateVersionJobCompleted(t, cli, noAiVersion.ID)
+	noAiTemplate := coderdtest.CreateTemplate(t, cli, uuid.Nil, noAiVersion.ID)
+
+	// Create one AI workspace, which should succeed.
+	workspace := coderdtest.CreateWorkspace(t, cli, aiTemplate.ID)
+	coderdtest.AwaitWorkspaceBuildJobCompleted(t, cli, workspace.LatestBuild.ID)
+
+	// Create a second AI workspace, which should fail. This needs to be done
+	// manually because coderdtest.CreateWorkspace expects it to succeed.
+	_, err := cli.CreateUserWorkspace(context.Background(), codersdk.Me, codersdk.CreateWorkspaceRequest{ //nolint:gocritic // owners must still be subject to the limit
+		TemplateID:       aiTemplate.ID,
+		Name:             coderdtest.RandomUsername(t),
+		AutomaticUpdates: codersdk.AutomaticUpdatesNever,
+	})
+	require.ErrorContains(t, err, "You have breached the managed agent limit in your license")
+
+	// Create a third non-AI workspace, which should succeed.
+	workspace = coderdtest.CreateWorkspace(t, cli, noAiTemplate.ID)
+	coderdtest.AwaitWorkspaceBuildJobCompleted(t, cli, workspace.LatestBuild.ID)
+}
+
 // testDBAuthzRole returns a context with a subject that has a role
 // with permissions required for test setup.
 func testDBAuthzRole(ctx context.Context) context.Context {
diff --git a/enterprise/coderd/license/license.go b/enterprise/coderd/license/license.go
index 9371c10c138d8..7776557522f86 100644
--- a/enterprise/coderd/license/license.go
+++ b/enterprise/coderd/license/license.go
@@ -94,15 +94,15 @@ func Entitlements(
 		return codersdk.Entitlements{}, xerrors.Errorf("query active user count: %w", err)
 	}
 
-	// always shows active user count regardless of license
 	entitlements, err := LicensesEntitlements(ctx, now, licenses, enablements, keys, FeatureArguments{
 		ActiveUserCount:   activeUserCount,
 		ReplicaCount:      replicaCount,
 		ExternalAuthCount: externalAuthCount,
-		ManagedAgentCountFn: func(_ context.Context, _ time.Time, _ time.Time) (int64, error) {
-			// TODO(@deansheather): replace this with a real implementation in a
-			//                      follow up PR.
-			return 0, nil
+		ManagedAgentCountFn: func(ctx context.Context, startTime time.Time, endTime time.Time) (int64, error) {
+			return db.GetManagedAgentCount(ctx, database.GetManagedAgentCountParams{
+				StartTime: startTime,
+				EndTime:   endTime,
+			})
 		},
 	})
 	if err != nil {
diff --git a/enterprise/coderd/license/license_test.go b/enterprise/coderd/license/license_test.go
index fac1d2b44bb63..d8203117039cb 100644
--- a/enterprise/coderd/license/license_test.go
+++ b/enterprise/coderd/license/license_test.go
@@ -10,8 +10,10 @@ import (
 	"github.com/google/uuid"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"go.uber.org/mock/gomock"
 
 	"github.com/coder/coder/v2/coderd/database"
+	"github.com/coder/coder/v2/coderd/database/dbmock"
 	"github.com/coder/coder/v2/coderd/database/dbtestutil"
 	"github.com/coder/coder/v2/coderd/database/dbtime"
 	"github.com/coder/coder/v2/codersdk"
@@ -678,6 +680,67 @@ func TestEntitlements(t *testing.T) {
 		require.Len(t, entitlements.Warnings, 1)
 		require.Equal(t, "You have multiple External Auth Providers configured but your license is expired. Reduce to one.", entitlements.Warnings[0])
 	})
+
+	t.Run("ManagedAgentLimitHasValue", func(t *testing.T) {
+		t.Parallel()
+
+		// Use a mock database for this test so I don't need to make real
+		// workspace builds.
+		ctrl := gomock.NewController(t)
+		mDB := dbmock.NewMockStore(ctrl)
+
+		licenseOpts := (&coderdenttest.LicenseOptions{
+			FeatureSet: codersdk.FeatureSetPremium,
+			IssuedAt:   dbtime.Now().Add(-2 * time.Hour).Truncate(time.Second),
+			NotBefore:  dbtime.Now().Add(-time.Hour).Truncate(time.Second),
+			GraceAt:    dbtime.Now().Add(time.Hour * 24 * 60).Truncate(time.Second), // 60 days to remove warning
+			ExpiresAt:  dbtime.Now().Add(time.Hour * 24 * 90).Truncate(time.Second), // 90 days to remove warning
+		}).
+			UserLimit(100).
+			ManagedAgentLimit(100, 200)
+
+		lic := database.License{
+			ID:  1,
+			JWT: coderdenttest.GenerateLicense(t, *licenseOpts),
+			Exp: licenseOpts.ExpiresAt,
+		}
+
+		mDB.EXPECT().
+			GetUnexpiredLicenses(gomock.Any()).
+			Return([]database.License{lic}, nil)
+		mDB.EXPECT().
+			GetActiveUserCount(gomock.Any(), false).
+			Return(int64(1), nil)
+		mDB.EXPECT().
+			GetManagedAgentCount(gomock.Any(), gomock.Cond(func(params database.GetManagedAgentCountParams) bool {
+				// gomock doesn't seem to compare times very nicely.
+				if !assert.WithinDuration(t, licenseOpts.NotBefore, params.StartTime, time.Second) {
+					return false
+				}
+				if !assert.WithinDuration(t, licenseOpts.ExpiresAt, params.EndTime, time.Second) {
+					return false
+				}
+				return true
+			})).
+			Return(int64(175), nil)
+
+		entitlements, err := license.Entitlements(context.Background(), mDB, 1, 0, coderdenttest.Keys, all)
+		require.NoError(t, err)
+		require.True(t, entitlements.HasLicense)
+
+		managedAgentLimit, ok := entitlements.Features[codersdk.FeatureManagedAgentLimit]
+		require.True(t, ok)
+		require.NotNil(t, managedAgentLimit.SoftLimit)
+		require.EqualValues(t, 100, *managedAgentLimit.SoftLimit)
+		require.NotNil(t, managedAgentLimit.Limit)
+		require.EqualValues(t, 200, *managedAgentLimit.Limit)
+		require.NotNil(t, managedAgentLimit.Actual)
+		require.EqualValues(t, 175, *managedAgentLimit.Actual)
+
+		// Should've also populated a warning.
+		require.Len(t, entitlements.Warnings, 1)
+		require.Equal(t, "You are approaching the managed agent limit in your license. Please refer to the Deployment Licenses page for more information.", entitlements.Warnings[0])
+	})
 }
 
 func TestLicenseEntitlements(t *testing.T) {
diff --git a/enterprise/coderd/prebuilds/claim_test.go b/enterprise/coderd/prebuilds/claim_test.go
index 67c1f0dd21ade..01195e3485016 100644
--- a/enterprise/coderd/prebuilds/claim_test.go
+++ b/enterprise/coderd/prebuilds/claim_test.go
@@ -166,7 +166,7 @@ func TestClaimPrebuild(t *testing.T) {
 				defer provisionerCloser.Close()
 
 				cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
-				reconciler := prebuilds.NewStoreReconciler(spy, pubsub, cache, codersdk.PrebuildsConfig{}, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer())
+				reconciler := prebuilds.NewStoreReconciler(spy, pubsub, cache, codersdk.PrebuildsConfig{}, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer(), newNoopUsageCheckerPtr())
 				var claimer agplprebuilds.Claimer = prebuilds.NewEnterpriseClaimer(spy)
 				api.AGPL.PrebuildsClaimer.Store(&claimer)
 
diff --git a/enterprise/coderd/prebuilds/metricscollector_test.go b/enterprise/coderd/prebuilds/metricscollector_test.go
index 96c3d071ac48a..1e9f3f5082806 100644
--- a/enterprise/coderd/prebuilds/metricscollector_test.go
+++ b/enterprise/coderd/prebuilds/metricscollector_test.go
@@ -201,7 +201,7 @@ func TestMetricsCollector(t *testing.T) {
 									clock := quartz.NewMock(t)
 									db, pubsub := dbtestutil.NewDB(t)
 									cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
-									reconciler := prebuilds.NewStoreReconciler(db, pubsub, cache, codersdk.PrebuildsConfig{}, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer())
+									reconciler := prebuilds.NewStoreReconciler(db, pubsub, cache, codersdk.PrebuildsConfig{}, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer(), newNoopUsageCheckerPtr())
 									ctx := testutil.Context(t, testutil.WaitLong)
 
 									createdUsers := []uuid.UUID{database.PrebuildsSystemUserID}
@@ -338,7 +338,7 @@ func TestMetricsCollector_DuplicateTemplateNames(t *testing.T) {
 	clock := quartz.NewMock(t)
 	db, pubsub := dbtestutil.NewDB(t)
 	cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
-	reconciler := prebuilds.NewStoreReconciler(db, pubsub, cache, codersdk.PrebuildsConfig{}, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer())
+	reconciler := prebuilds.NewStoreReconciler(db, pubsub, cache, codersdk.PrebuildsConfig{}, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer(), newNoopUsageCheckerPtr())
 	ctx := testutil.Context(t, testutil.WaitLong)
 
 	collector := prebuilds.NewMetricsCollector(db, logger, reconciler)
@@ -491,7 +491,7 @@ func TestMetricsCollector_ReconciliationPausedMetric(t *testing.T) {
 		db, pubsub := dbtestutil.NewDB(t)
 		cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 		registry := prometheus.NewPedanticRegistry()
-		reconciler := prebuilds.NewStoreReconciler(db, pubsub, cache, codersdk.PrebuildsConfig{}, logger, quartz.NewMock(t), registry, newNoopEnqueuer())
+		reconciler := prebuilds.NewStoreReconciler(db, pubsub, cache, codersdk.PrebuildsConfig{}, logger, quartz.NewMock(t), registry, newNoopEnqueuer(), newNoopUsageCheckerPtr())
 		ctx := testutil.Context(t, testutil.WaitLong)
 
 		// Ensure no pause setting is set (default state)
@@ -520,7 +520,7 @@ func TestMetricsCollector_ReconciliationPausedMetric(t *testing.T) {
 		db, pubsub := dbtestutil.NewDB(t)
 		cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 		registry := prometheus.NewPedanticRegistry()
-		reconciler := prebuilds.NewStoreReconciler(db, pubsub, cache, codersdk.PrebuildsConfig{}, logger, quartz.NewMock(t), registry, newNoopEnqueuer())
+		reconciler := prebuilds.NewStoreReconciler(db, pubsub, cache, codersdk.PrebuildsConfig{}, logger, quartz.NewMock(t), registry, newNoopEnqueuer(), newNoopUsageCheckerPtr())
 		ctx := testutil.Context(t, testutil.WaitLong)
 
 		// Set reconciliation to paused
@@ -549,7 +549,7 @@ func TestMetricsCollector_ReconciliationPausedMetric(t *testing.T) {
 		db, pubsub := dbtestutil.NewDB(t)
 		cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
 		registry := prometheus.NewPedanticRegistry()
-		reconciler := prebuilds.NewStoreReconciler(db, pubsub, cache, codersdk.PrebuildsConfig{}, logger, quartz.NewMock(t), registry, newNoopEnqueuer())
+		reconciler := prebuilds.NewStoreReconciler(db, pubsub, cache, codersdk.PrebuildsConfig{}, logger, quartz.NewMock(t), registry, newNoopEnqueuer(), newNoopUsageCheckerPtr())
 		ctx := testutil.Context(t, testutil.WaitLong)
 
 		// Set reconciliation back to not paused
diff --git a/enterprise/coderd/prebuilds/reconcile.go b/enterprise/coderd/prebuilds/reconcile.go
index 049568c7e7f0c..214d1643bb228 100644
--- a/enterprise/coderd/prebuilds/reconcile.go
+++ b/enterprise/coderd/prebuilds/reconcile.go
@@ -39,15 +39,16 @@ import (
 )
 
 type StoreReconciler struct {
-	store      database.Store
-	cfg        codersdk.PrebuildsConfig
-	pubsub     pubsub.Pubsub
-	fileCache  *files.Cache
-	logger     slog.Logger
-	clock      quartz.Clock
-	registerer prometheus.Registerer
-	metrics    *MetricsCollector
-	notifEnq   notifications.Enqueuer
+	store             database.Store
+	cfg               codersdk.PrebuildsConfig
+	pubsub            pubsub.Pubsub
+	fileCache         *files.Cache
+	logger            slog.Logger
+	clock             quartz.Clock
+	registerer        prometheus.Registerer
+	metrics           *MetricsCollector
+	notifEnq          notifications.Enqueuer
+	buildUsageChecker *atomic.Pointer[wsbuilder.UsageChecker]
 
 	cancelFn          context.CancelCauseFunc
 	running           atomic.Bool
@@ -66,6 +67,7 @@ func NewStoreReconciler(store database.Store,
 	clock quartz.Clock,
 	registerer prometheus.Registerer,
 	notifEnq notifications.Enqueuer,
+	buildUsageChecker *atomic.Pointer[wsbuilder.UsageChecker],
 ) *StoreReconciler {
 	reconciler := &StoreReconciler{
 		store:             store,
@@ -76,6 +78,7 @@ func NewStoreReconciler(store database.Store,
 		clock:             clock,
 		registerer:        registerer,
 		notifEnq:          notifEnq,
+		buildUsageChecker: buildUsageChecker,
 		done:              make(chan struct{}, 1),
 		provisionNotifyCh: make(chan database.ProvisionerJob, 10),
 	}
@@ -738,7 +741,7 @@ func (c *StoreReconciler) provision(
 		})
 	}
 
-	builder := wsbuilder.New(workspace, transition).
+	builder := wsbuilder.New(workspace, transition, *c.buildUsageChecker.Load()).
 		Reason(database.BuildReasonInitiator).
 		Initiator(database.PrebuildsSystemUserID).
 		MarkPrebuild()
diff --git a/enterprise/coderd/prebuilds/reconcile_test.go b/enterprise/coderd/prebuilds/reconcile_test.go
index 5ba36912ce5c8..8d2a81e1ade83 100644
--- a/enterprise/coderd/prebuilds/reconcile_test.go
+++ b/enterprise/coderd/prebuilds/reconcile_test.go
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"sort"
 	"sync"
+	"sync/atomic"
 	"testing"
 	"time"
 
@@ -19,6 +20,7 @@ import (
 	"github.com/coder/coder/v2/coderd/notifications"
 	"github.com/coder/coder/v2/coderd/notifications/notificationstest"
 	"github.com/coder/coder/v2/coderd/util/slice"
+	"github.com/coder/coder/v2/coderd/wsbuilder"
 	sdkproto "github.com/coder/coder/v2/provisionersdk/proto"
 
 	"github.com/google/uuid"
@@ -56,7 +58,7 @@ func TestNoReconciliationActionsIfNoPresets(t *testing.T) {
 	}
 	logger := testutil.Logger(t)
 	cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
-	controller := prebuilds.NewStoreReconciler(db, ps, cache, cfg, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer())
+	controller := prebuilds.NewStoreReconciler(db, ps, cache, cfg, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer(), newNoopUsageCheckerPtr())
 
 	// given a template version with no presets
 	org := dbgen.Organization(t, db, database.Organization{})
@@ -102,7 +104,7 @@ func TestNoReconciliationActionsIfNoPrebuilds(t *testing.T) {
 	}
 	logger := testutil.Logger(t)
 	cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
-	controller := prebuilds.NewStoreReconciler(db, ps, cache, cfg, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer())
+	controller := prebuilds.NewStoreReconciler(db, ps, cache, cfg, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer(), newNoopUsageCheckerPtr())
 
 	// given there are presets, but no prebuilds
 	org := dbgen.Organization(t, db, database.Organization{})
@@ -382,7 +384,7 @@ func TestPrebuildReconciliation(t *testing.T) {
 									pubSub = &brokenPublisher{Pubsub: pubSub}
 								}
 								cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
-								controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer())
+								controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer(), newNoopUsageCheckerPtr())
 
 								// Run the reconciliation multiple times to ensure idempotency
 								// 8 was arbitrary, but large enough to reasonably trust the result
@@ -460,7 +462,7 @@ func TestMultiplePresetsPerTemplateVersion(t *testing.T) {
 	).Leveled(slog.LevelDebug)
 	db, pubSub := dbtestutil.NewDB(t)
 	cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
-	controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer())
+	controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer(), newNoopUsageCheckerPtr())
 
 	ownerID := uuid.New()
 	dbgen.User(t, db, database.User{
@@ -586,7 +588,7 @@ func TestPrebuildScheduling(t *testing.T) {
 			).Leveled(slog.LevelDebug)
 			db, pubSub := dbtestutil.NewDB(t)
 			cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
-			controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, clock, prometheus.NewRegistry(), newNoopEnqueuer())
+			controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, clock, prometheus.NewRegistry(), newNoopEnqueuer(), newNoopUsageCheckerPtr())
 
 			ownerID := uuid.New()
 			dbgen.User(t, db, database.User{
@@ -691,7 +693,7 @@ func TestInvalidPreset(t *testing.T) {
 	).Leveled(slog.LevelDebug)
 	db, pubSub := dbtestutil.NewDB(t)
 	cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
-	controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer())
+	controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer(), newNoopUsageCheckerPtr())
 
 	ownerID := uuid.New()
 	dbgen.User(t, db, database.User{
@@ -756,7 +758,7 @@ func TestDeletionOfPrebuiltWorkspaceWithInvalidPreset(t *testing.T) {
 	).Leveled(slog.LevelDebug)
 	db, pubSub := dbtestutil.NewDB(t)
 	cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
-	controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer())
+	controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, quartz.NewMock(t), prometheus.NewRegistry(), newNoopEnqueuer(), newNoopUsageCheckerPtr())
 
 	ownerID := uuid.New()
 	dbgen.User(t, db, database.User{
@@ -853,7 +855,7 @@ func TestSkippingHardLimitedPresets(t *testing.T) {
 			fakeEnqueuer := newFakeEnqueuer()
 			registry := prometheus.NewRegistry()
 			cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
-			controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, clock, registry, fakeEnqueuer)
+			controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, clock, registry, fakeEnqueuer, newNoopUsageCheckerPtr())
 
 			// Set up test environment with a template, version, and preset.
 			ownerID := uuid.New()
@@ -997,7 +999,7 @@ func TestHardLimitedPresetShouldNotBlockDeletion(t *testing.T) {
 			fakeEnqueuer := newFakeEnqueuer()
 			registry := prometheus.NewRegistry()
 			cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
-			controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, clock, registry, fakeEnqueuer)
+			controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, clock, registry, fakeEnqueuer, newNoopUsageCheckerPtr())
 
 			// Set up test environment with a template, version, and preset.
 			ownerID := uuid.New()
@@ -1191,7 +1193,7 @@ func TestRunLoop(t *testing.T) {
 	).Leveled(slog.LevelDebug)
 	db, pubSub := dbtestutil.NewDB(t)
 	cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
-	reconciler := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, clock, prometheus.NewRegistry(), newNoopEnqueuer())
+	reconciler := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, clock, prometheus.NewRegistry(), newNoopEnqueuer(), newNoopUsageCheckerPtr())
 
 	ownerID := uuid.New()
 	dbgen.User(t, db, database.User{
@@ -1322,7 +1324,7 @@ func TestFailedBuildBackoff(t *testing.T) {
 	).Leveled(slog.LevelDebug)
 	db, ps := dbtestutil.NewDB(t)
 	cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
-	reconciler := prebuilds.NewStoreReconciler(db, ps, cache, cfg, logger, clock, prometheus.NewRegistry(), newNoopEnqueuer())
+	reconciler := prebuilds.NewStoreReconciler(db, ps, cache, cfg, logger, clock, prometheus.NewRegistry(), newNoopEnqueuer(), newNoopUsageCheckerPtr())
 
 	// Given: an active template version with presets and prebuilds configured.
 	const desiredInstances = 2
@@ -1447,7 +1449,8 @@ func TestReconciliationLock(t *testing.T) {
 				slogtest.Make(t, &slogtest.Options{IgnoreErrors: true}).Leveled(slog.LevelDebug),
 				quartz.NewMock(t),
 				prometheus.NewRegistry(),
-				newNoopEnqueuer())
+				newNoopEnqueuer(),
+				newNoopUsageCheckerPtr())
 			reconciler.WithReconciliationLock(ctx, logger, func(_ context.Context, _ database.Store) error {
 				lockObtained := mutex.TryLock()
 				// As long as the postgres lock is held, this mutex should always be unlocked when we get here.
@@ -1481,7 +1484,7 @@ func TestTrackResourceReplacement(t *testing.T) {
 	fakeEnqueuer := newFakeEnqueuer()
 	registry := prometheus.NewRegistry()
 	cache := files.New(registry, &coderdtest.FakeAuthorizer{})
-	reconciler := prebuilds.NewStoreReconciler(db, ps, cache, codersdk.PrebuildsConfig{}, logger, clock, registry, fakeEnqueuer)
+	reconciler := prebuilds.NewStoreReconciler(db, ps, cache, codersdk.PrebuildsConfig{}, logger, clock, registry, fakeEnqueuer, newNoopUsageCheckerPtr())
 
 	// Given: a template admin to receive a notification.
 	templateAdmin := dbgen.User(t, db, database.User{
@@ -1637,7 +1640,7 @@ func TestExpiredPrebuildsMultipleActions(t *testing.T) {
 			fakeEnqueuer := newFakeEnqueuer()
 			registry := prometheus.NewRegistry()
 			cache := files.New(registry, &coderdtest.FakeAuthorizer{})
-			controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, clock, registry, fakeEnqueuer)
+			controller := prebuilds.NewStoreReconciler(db, pubSub, cache, cfg, logger, clock, registry, fakeEnqueuer, newNoopUsageCheckerPtr())
 
 			// Set up test environment with a template, version, and preset
 			ownerID := uuid.New()
@@ -1800,6 +1803,13 @@ func newFakeEnqueuer() *notificationstest.FakeEnqueuer {
 	return notificationstest.NewFakeEnqueuer()
 }
 
+func newNoopUsageCheckerPtr() *atomic.Pointer[wsbuilder.UsageChecker] {
+	var noopUsageChecker wsbuilder.UsageChecker = wsbuilder.NoopUsageChecker{}
+	buildUsageChecker := atomic.Pointer[wsbuilder.UsageChecker]{}
+	buildUsageChecker.Store(&noopUsageChecker)
+	return &buildUsageChecker
+}
+
 // nolint:revive // It's a control flag, but this is a test.
 func setupTestDBTemplate(
 	t *testing.T,
@@ -2270,7 +2280,7 @@ func TestReconciliationRespectsPauseSetting(t *testing.T) {
 	}
 	logger := testutil.Logger(t)
 	cache := files.New(prometheus.NewRegistry(), &coderdtest.FakeAuthorizer{})
-	reconciler := prebuilds.NewStoreReconciler(db, ps, cache, cfg, logger, clock, prometheus.NewRegistry(), newNoopEnqueuer())
+	reconciler := prebuilds.NewStoreReconciler(db, ps, cache, cfg, logger, clock, prometheus.NewRegistry(), newNoopEnqueuer(), newNoopUsageCheckerPtr())
 
 	// Setup a template with a preset that should create prebuilds
 	org := dbgen.Organization(t, db, database.Organization{})
diff --git a/enterprise/coderd/workspaces_test.go b/enterprise/coderd/workspaces_test.go
index d622748899aa0..2278fb2a71939 100644
--- a/enterprise/coderd/workspaces_test.go
+++ b/enterprise/coderd/workspaces_test.go
@@ -1864,6 +1864,7 @@ func TestExecutorPrebuilds(t *testing.T) {
 			clock,
 			prometheus.NewRegistry(),
 			notificationsNoop,
+			api.AGPL.BuildUsageChecker,
 		)
 		var claimer agplprebuilds.Claimer = prebuilds.NewEnterpriseClaimer(db)
 		api.AGPL.PrebuildsClaimer.Store(&claimer)
@@ -2004,6 +2005,7 @@ func TestExecutorPrebuilds(t *testing.T) {
 					clock,
 					prometheus.NewRegistry(),
 					notificationsNoop,
+					api.AGPL.BuildUsageChecker,
 				)
 				var claimer agplprebuilds.Claimer = prebuilds.NewEnterpriseClaimer(db)
 				api.AGPL.PrebuildsClaimer.Store(&claimer)
@@ -2134,6 +2136,7 @@ func TestExecutorPrebuilds(t *testing.T) {
 			clock,
 			prometheus.NewRegistry(),
 			notificationsNoop,
+			api.AGPL.BuildUsageChecker,
 		)
 		var claimer agplprebuilds.Claimer = prebuilds.NewEnterpriseClaimer(db)
 		api.AGPL.PrebuildsClaimer.Store(&claimer)
@@ -2266,6 +2269,7 @@ func TestExecutorPrebuilds(t *testing.T) {
 			clock,
 			prometheus.NewRegistry(),
 			notificationsNoop,
+			api.AGPL.BuildUsageChecker,
 		)
 		var claimer agplprebuilds.Claimer = prebuilds.NewEnterpriseClaimer(db)
 		api.AGPL.PrebuildsClaimer.Store(&claimer)
@@ -2376,6 +2380,7 @@ func TestExecutorPrebuilds(t *testing.T) {
 			clock,
 			prometheus.NewRegistry(),
 			notificationsNoop,
+			api.AGPL.BuildUsageChecker,
 		)
 		var claimer agplprebuilds.Claimer = prebuilds.NewEnterpriseClaimer(db)
 		api.AGPL.PrebuildsClaimer.Store(&claimer)