diff --git a/crates/worker-runtime/src/fs_store.rs b/crates/worker-runtime/src/fs_store.rs
index 18f7b12c..de600640 100644
--- a/crates/worker-runtime/src/fs_store.rs
+++ b/crates/worker-runtime/src/fs_store.rs
@@ -192,6 +192,18 @@ impl FsRuntimeStore {
         Ok(())
     }
 
+    pub(crate) fn delete_worker_snapshot(&self, worker_id: &WorkerId) -> Result<(), RuntimeError> {
+        let worker_dir = self.worker_dir(worker_id);
+        if !worker_dir.exists() {
+            return Ok(());
+        }
+        fs::remove_dir_all(&worker_dir).map_err(|source| RuntimeError::StoreIo {
+            operation: "delete worker store",
+            path: worker_dir,
+            source,
+        })
+    }
+
     pub(crate) fn append_event(&self, event: &RuntimeEvent) -> Result<(), RuntimeError> {
         if let Some(worker_ref) = &event.worker_ref {
             self.ensure_worker_ref(worker_ref)?;
diff --git a/crates/worker-runtime/src/http_server.rs b/crates/worker-runtime/src/http_server.rs
index 71c278b5..0eea51e6 100644
--- a/crates/worker-runtime/src/http_server.rs
+++ b/crates/worker-runtime/src/http_server.rs
@@ -15,7 +15,7 @@ use crate::config_bundle::{ConfigBundle, ConfigBundleAvailability, ConfigBundleS
 use crate::error::RuntimeError;
 use crate::identity::{RuntimeId, WorkerId, WorkerRef};
 use crate::interaction::{WorkerInput, WorkerInteractionAck};
-use crate::management::{RuntimeLimits, RuntimeSummary};
+use crate::management::{RuntimeLimits, RuntimeSummary, WorkerDeleteResult};
 #[cfg(feature = "ws-server")]
 use crate::observation::WorkerObservationCursor;
 use axum::body::{Body, Bytes};
@@ -147,7 +147,10 @@ pub fn runtime_http_router(runtime: Runtime, local_token: Option<String>) -> Rou
             get(get_working_directory).delete(cleanup_working_directory),
         )
         .route("/v1/workers", get(list_workers).post(create_worker))
-        .route("/v1/workers/{worker_id}", get(get_worker))
+        .route(
+            "/v1/workers/{worker_id}",
+            get(get_worker).delete(delete_worker),
+        )
         .route("/v1/workers/{worker_id}/input", post(send_worker_input))
         .route("/v1/workers/{worker_id}/stop", post(stop_worker))
         .route("/v1/workers/{worker_id}/cancel", post(cancel_worker));
@@ -219,6 +222,12 @@ pub struct RuntimeHttpWorkerResponse {
     pub worker: WorkerDetail,
 }
 
+/// Worker delete response.
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+pub struct RuntimeHttpWorkerDeleteResponse {
+    pub worker: WorkerDeleteResult,
+}
+
 /// Worker input acknowledgement response.
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
 pub struct RuntimeHttpWorkerInputResponse {
@@ -461,6 +470,18 @@ async fn get_worker(
     Ok(Json(RuntimeHttpWorkerResponse { worker }))
 }
 
+async fn delete_worker(
+    State(state): State<RuntimeHttpState>,
+    Path(worker_id): Path<String>,
+) -> RestResult<RuntimeHttpWorkerDeleteResponse> {
+    let worker_ref = worker_ref_for(&state.runtime, worker_id)?;
+    let worker = state
+        .runtime
+        .delete_worker(&worker_ref)
+        .map_err(RuntimeHttpRestError::runtime)?;
+    Ok(Json(RuntimeHttpWorkerDeleteResponse { worker }))
+}
+
 async fn create_worker(
     State(state): State<RuntimeHttpState>,
     body: Result<Json<CreateWorkerRequest>, JsonRejection>,
diff --git a/crates/worker-runtime/src/management.rs b/crates/worker-runtime/src/management.rs
index 697492fa..64a5e90c 100644
--- a/crates/worker-runtime/src/management.rs
+++ b/crates/worker-runtime/src/management.rs
@@ -1,4 +1,4 @@
-use crate::identity::RuntimeId;
+use crate::identity::{RuntimeId, WorkerId};
 use serde::{Deserialize, Serialize};
 
 /// Runtime backend kind.
@@ -54,6 +54,13 @@ fn unknown_platform_component() -> String {
     "unknown".to_string()
 }
 
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+pub struct WorkerDeleteResult {
+    pub runtime_id: RuntimeId,
+    pub worker_id: WorkerId,
+    pub deleted: bool,
+}
+
 /// Management-plane summary for a Runtime.
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
 pub struct RuntimeSummary {
diff --git a/crates/worker-runtime/src/observation.rs b/crates/worker-runtime/src/observation.rs
index 1e39936e..b580c58d 100644
--- a/crates/worker-runtime/src/observation.rs
+++ b/crates/worker-runtime/src/observation.rs
@@ -42,6 +42,7 @@ pub enum RuntimeEventKind {
     WorkerInputAccepted,
     WorkerStopped,
     WorkerCancelled,
+    WorkerDeleted,
 }
 
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
diff --git a/crates/worker-runtime/src/runtime.rs b/crates/worker-runtime/src/runtime.rs
index 81737297..5278dbf1 100644
--- a/crates/worker-runtime/src/runtime.rs
+++ b/crates/worker-runtime/src/runtime.rs
@@ -25,6 +25,7 @@ use crate::identity::{RuntimeId, WorkerId, WorkerRef};
 use crate::interaction::{WorkerInput, WorkerInputKind, WorkerInteractionAck};
 use crate::management::{
     RuntimeBackendKind, RuntimeLimits, RuntimeOptions, RuntimeStatus, RuntimeSummary,
+    WorkerDeleteResult,
 };
 use crate::observation::{
     EventCursor, EventSubscription, EventSubscriptionMode, RuntimeEvent, RuntimeEventBatch,
@@ -648,6 +649,46 @@ impl Runtime {
         )
     }
 
+    /// Delete a non-running Worker from Runtime state and persisted Worker storage.
+    pub fn delete_worker(
+        &self,
+        worker_ref: &WorkerRef,
+    ) -> Result<WorkerDeleteResult, RuntimeError> {
+        let mut state = self.lock()?;
+        state.ensure_running()?;
+        state.ensure_worker_ref(worker_ref)?;
+        let worker = state.worker(worker_ref)?;
+        if worker.status.is_active() {
+            return Err(RuntimeError::InvalidRequest(format!(
+                "worker {} is running and must be stopped before deletion",
+                worker_ref.worker_id
+            )));
+        }
+        let removed = state.workers.remove(&worker_ref.worker_id).ok_or_else(|| {
+            RuntimeError::WorkerNotFound {
+                runtime_id: state.runtime_id.clone(),
+                worker_id: worker_ref.worker_id,
+            }
+        })?;
+        #[cfg(feature = "ws-server")]
+        state
+            .observation_events
+            .retain(|event| event.worker_ref != *worker_ref);
+        let event_id = state.push_event(
+            Some(worker_ref.clone()),
+            RuntimeEventKind::WorkerDeleted,
+            "worker deleted",
+        );
+        state.persist_runtime_snapshot()?;
+        state.delete_worker_snapshot(&worker_ref.worker_id)?;
+        state.persist_event_by_id(event_id)?;
+        Ok(WorkerDeleteResult {
+            runtime_id: removed.worker_ref.runtime_id,
+            worker_id: removed.worker_id,
+            deleted: true,
+        })
+    }
+
     /// Cursor pointing to the beginning of Runtime events.
     pub fn event_cursor_from_start(&self) -> Result<EventCursor, RuntimeError> {
         let state = self.lock()?;
@@ -1145,6 +1186,14 @@ impl RuntimeState {
         Ok(())
     }
 
+    #[cfg(feature = "fs-store")]
+    fn delete_worker_snapshot(&self, worker_id: &WorkerId) -> Result<(), RuntimeError> {
+        if let Some(store) = self.fs_store() {
+            store.delete_worker_snapshot(worker_id)?;
+        }
+        Ok(())
+    }
+
     #[cfg(feature = "fs-store")]
     fn persist_event_by_id(&self, event_id: u64) -> Result<(), RuntimeError> {
         if let Some(store) = self.fs_store() {
@@ -1201,6 +1250,11 @@ impl RuntimeState {
         Ok(())
     }
 
+    #[cfg(not(feature = "fs-store"))]
+    fn delete_worker_snapshot(&self, _worker_id: &WorkerId) -> Result<(), RuntimeError> {
+        Ok(())
+    }
+
     #[cfg(not(feature = "fs-store"))]
     fn persist_event_by_id(&self, _event_id: u64) -> Result<(), RuntimeError> {
         Ok(())
@@ -1997,6 +2051,26 @@ mod tests {
         assert_eq!(summary.cancelled_worker_count, 1);
     }
 
+    #[test]
+    fn delete_worker_removes_stopped_worker_from_runtime() {
+        let runtime = runtime_with_backend();
+        let worker = runtime.create_worker(task_request("delete me")).unwrap();
+        assert!(runtime.delete_worker(&worker.worker_ref).is_err());
+        runtime
+            .stop_worker(&worker.worker_ref, Some("done".to_string()))
+            .unwrap();
+
+        let result = runtime.delete_worker(&worker.worker_ref).unwrap();
+        assert!(result.deleted);
+        assert_eq!(result.worker_id, worker.worker_id);
+        assert!(matches!(
+            runtime.worker_detail(&worker.worker_ref),
+            Err(RuntimeError::WorkerNotFound { .. })
+        ));
+        let summary = runtime.summary().unwrap();
+        assert_eq!(summary.worker_count, 0);
+    }
+
     #[test]
     fn stop_then_cancel_preserves_stopped_terminal_state() {
         let runtime = runtime_with_backend();
diff --git a/crates/workspace-server/src/hosts.rs b/crates/workspace-server/src/hosts.rs
index 06d91076..3583b53f 100644
--- a/crates/workspace-server/src/hosts.rs
+++ b/crates/workspace-server/src/hosts.rs
@@ -31,10 +31,10 @@ use worker_runtime::execution::{
 use worker_runtime::fs_store::FsRuntimeStoreOptions;
 use worker_runtime::http_server::{
     RuntimeHttpConfigBundleAvailabilityResponse, RuntimeHttpConfigBundleSyncRequest,
-    RuntimeHttpErrorResponse, RuntimeHttpSummaryResponse, RuntimeHttpWorkerInputResponse,
-    RuntimeHttpWorkerLifecycleRequest, RuntimeHttpWorkerLifecycleResponse,
-    RuntimeHttpWorkerResponse, RuntimeHttpWorkersResponse, RuntimeHttpWorkingDirectoriesResponse,
-    RuntimeHttpWorkingDirectoryResponse,
+    RuntimeHttpErrorResponse, RuntimeHttpSummaryResponse, RuntimeHttpWorkerDeleteResponse,
+    RuntimeHttpWorkerInputResponse, RuntimeHttpWorkerLifecycleRequest,
+    RuntimeHttpWorkerLifecycleResponse, RuntimeHttpWorkerResponse, RuntimeHttpWorkersResponse,
+    RuntimeHttpWorkingDirectoriesResponse, RuntimeHttpWorkingDirectoryResponse,
 };
 use worker_runtime::identity::{
     RuntimeId as EmbeddedRuntimeId, WorkerId as EmbeddedWorkerId, WorkerRef as EmbeddedWorkerRef,
@@ -442,6 +442,15 @@ pub enum WorkerInputKind {
     System,
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
+pub struct WorkerDeleteResult {
+    pub state: WorkerOperationState,
+    pub runtime_id: String,
+    pub worker_id: String,
+    pub deleted: bool,
+    pub diagnostics: Vec<RuntimeDiagnostic>,
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
 pub struct WorkerInputRequest {
     #[serde(default = "default_worker_input_kind")]
@@ -670,6 +679,20 @@ pub trait WorkspaceWorkerRuntime: Send + Sync {
         }
     }
 
+    fn delete_worker(&self, worker_id: &str) -> WorkerDeleteResult {
+        WorkerDeleteResult {
+            state: WorkerOperationState::Unsupported,
+            runtime_id: self.runtime_id().to_string(),
+            worker_id: worker_id.to_string(),
+            deleted: false,
+            diagnostics: vec![diagnostic(
+                "worker_delete_unsupported",
+                DiagnosticSeverity::Info,
+                format!("runtime does not implement worker deletion for '{worker_id}'"),
+            )],
+        }
+    }
+
     fn observation_source(
         &self,
         _worker_id: &str,
@@ -1041,6 +1064,25 @@ impl RuntimeRegistry {
         Ok(runtime.cancel_worker(worker_id, request))
     }
 
+    pub fn delete_worker(
+        &self,
+        runtime_id: &str,
+        worker_id: &str,
+    ) -> Result<WorkerDeleteResult, RuntimeRegistryError> {
+        validate_backend_identifier("runtime_id", runtime_id)?;
+        validate_backend_identifier("worker_id", worker_id)?;
+        let runtime = self.runtime(runtime_id)?;
+        let lookup = runtime.worker(worker_id);
+        if lookup.worker.is_none() {
+            return Err(operation_failed_or_unknown_worker(
+                runtime_id,
+                worker_id,
+                lookup.diagnostics,
+            ));
+        }
+        Ok(runtime.delete_worker(worker_id))
+    }
+
     pub fn observation_source(
         &self,
         runtime_id: &str,
@@ -1658,6 +1700,38 @@ impl WorkspaceWorkerRuntime for EmbeddedWorkerRuntime {
         }
     }
 
+    fn delete_worker(&self, worker_id: &str) -> WorkerDeleteResult {
+        let Some(worker_ref) = self.worker_ref(worker_id) else {
+            return WorkerDeleteResult {
+                state: WorkerOperationState::Rejected,
+                runtime_id: self.runtime_id.clone(),
+                worker_id: worker_id.to_string(),
+                deleted: false,
+                diagnostics: vec![diagnostic(
+                    "embedded_worker_id_invalid",
+                    DiagnosticSeverity::Warning,
+                    "Worker id was empty and cannot be resolved".to_string(),
+                )],
+            };
+        };
+        match self.runtime.delete_worker(&worker_ref) {
+            Ok(result) => WorkerDeleteResult {
+                state: WorkerOperationState::Accepted,
+                runtime_id: result.runtime_id.to_string(),
+                worker_id: result.worker_id.to_string(),
+                deleted: result.deleted,
+                diagnostics: Vec::new(),
+            },
+            Err(error) => WorkerDeleteResult {
+                state: WorkerOperationState::Rejected,
+                runtime_id: self.runtime_id.clone(),
+                worker_id: worker_id.to_string(),
+                deleted: false,
+                diagnostics: vec![embedded_runtime_diagnostic(&error)],
+            },
+        }
+    }
+
     fn observation_source(
         &self,
         worker_id: &str,
@@ -2315,6 +2389,27 @@ impl WorkspaceWorkerRuntime for RemoteWorkerRuntime {
         }
     }
 
+    fn delete_worker(&self, worker_id: &str) -> WorkerDeleteResult {
+        match self
+            .delete_json::<RuntimeHttpWorkerDeleteResponse>(&format!("/v1/workers/{worker_id}"))
+        {
+            Ok(response) => WorkerDeleteResult {
+                state: WorkerOperationState::Accepted,
+                runtime_id: response.worker.runtime_id.to_string(),
+                worker_id: response.worker.worker_id.to_string(),
+                deleted: response.worker.deleted,
+                diagnostics: Vec::new(),
+            },
+            Err(diagnostic) => WorkerDeleteResult {
+                state: WorkerOperationState::Rejected,
+                runtime_id: self.runtime_id.clone(),
+                worker_id: worker_id.to_string(),
+                deleted: false,
+                diagnostics: vec![diagnostic],
+            },
+        }
+    }
+
     fn observation_source(
         &self,
         worker_id: &str,
diff --git a/crates/workspace-server/src/server.rs b/crates/workspace-server/src/server.rs
index f0228e52..2881448a 100644
--- a/crates/workspace-server/src/server.rs
+++ b/crates/workspace-server/src/server.rs
@@ -27,7 +27,7 @@ use crate::config::{RemoteRuntimeConfigFile, WorkspaceBackendConfigFile, resolve
 use crate::hosts::{
     ConfigBundleCheckResult, ConfigBundleSyncResult, DiagnosticSeverity, EmbeddedWorkerRuntime,
     HostSummary, RemoteRuntimeConfig, RemoteWorkerRuntime, RuntimeDiagnostic, RuntimeRegistry,
-    RuntimeRegistryUnregisterResult, RuntimeSummary, WorkerCapabilitySummary,
+    RuntimeRegistryError, RuntimeRegistryUnregisterResult, RuntimeSummary, WorkerCapabilitySummary,
     WorkerImplementationSummary, WorkerInputRequest, WorkerInputResult, WorkerLifecycleRequest,
     WorkerLifecycleResult, WorkerOperationState, WorkerSpawnAcceptanceRequirement,
     WorkerSpawnIntent, WorkerSpawnRequest, WorkerSpawnResult, WorkerSpawnWorkingDirectoryRequest,
@@ -1662,10 +1662,9 @@ fn build_runtime_cleanup_plan(
             runtime_worker_id: record.runtime_worker_id.to_string(),
             runtime_id: record.runtime_id.clone(),
             reason: if blocking_reason.is_some() {
-                "Worker registry row cannot be deleted until blocking conditions are cleared"
-                    .to_string()
+                "Worker cannot be deleted until blocking conditions are cleared".to_string()
             } else {
-                "Stopped or unobserved Worker registry row can be manually deleted".to_string()
+                "Stopped or missing Worker can be manually deleted".to_string()
             },
             blocking_reason,
             pinned,
@@ -1840,6 +1839,7 @@ fn execute_runtime_cleanup(
             ));
         }
         let runtime_worker_id = parse_runtime_worker_id_for_registry(&candidate.runtime_worker_id)?;
+        cleanup_runtime_worker_for_execution(api, runtime_id, candidate)?;
         api.store.delete_worker_registry(
             &api.config.workspace_id,
             candidate.runtime_id.as_str(),
@@ -1849,8 +1849,7 @@ fn execute_runtime_cleanup(
             target_id: candidate.target_id.clone(),
             action: candidate.action.clone(),
             status: "deleted".to_string(),
-            message: "Worker registry row deleted; Runtime process state was not touched"
-                .to_string(),
+            message: "Worker deleted from Runtime and Backend registry".to_string(),
         });
     }
 
@@ -1928,6 +1927,29 @@ fn execute_runtime_cleanup(
     })
 }
 
+fn cleanup_runtime_worker_for_execution(
+    api: &WorkspaceApi,
+    runtime_id: &str,
+    candidate: &CleanupWorkerCandidate,
+) -> ApiResult<()> {
+    match api
+        .runtime
+        .delete_worker(runtime_id, candidate.runtime_worker_id.as_str())
+    {
+        Ok(result) if result.deleted && result.state == WorkerOperationState::Accepted => Ok(()),
+        Ok(result) => Err(ApiError::with_diagnostics(
+            Error::RuntimeOperationFailed {
+                runtime_id: runtime_id.to_string(),
+                code: "workspace_cleanup_worker_runtime_delete_rejected".to_string(),
+                message: "Runtime did not delete selected Worker".to_string(),
+            },
+            result.diagnostics,
+        )),
+        Err(RuntimeRegistryError::UnknownWorker { .. }) => Ok(()),
+        Err(error) => Err(error.into_error().into()),
+    }
+}
+
 fn cleanup_runtime_workdir_for_execution(
     api: &WorkspaceApi,
     runtime_id: &str,
@@ -3183,6 +3205,7 @@ fn workers_response(api: WorkspaceApi) -> ApiResult<RuntimeListResponse<WorkerSu
             );
         }
     }
+    let mut diagnostics = runtime_workers.diagnostics;
     let worker_records = api
         .store
         .list_worker_registry(&api.config.workspace_id, limit)?;
@@ -3191,13 +3214,38 @@ fn workers_response(api: WorkspaceApi) -> ApiResult<RuntimeListResponse<WorkerSu
         .list_workdir_registry(&api.config.workspace_id, 500)?;
     let mut items = Vec::new();
     for record in worker_records {
+        if !observed.contains_key(&(record.runtime_id.clone(), record.runtime_worker_id)) {
+            match api.runtime.worker(
+                record.runtime_id.as_str(),
+                &record.runtime_worker_id.to_string(),
+            ) {
+                Ok(worker) => {
+                    let _ = sync_worker_observation(&api, &worker);
+                    observed.insert(
+                        (worker.runtime_id.clone(), record.runtime_worker_id),
+                        worker,
+                    );
+                }
+                Err(RuntimeRegistryError::UnknownWorker { .. }) => {}
+                Err(error) => diagnostics.push(RuntimeDiagnostic {
+                    code: "worker_detail_probe_failed".to_string(),
+                    severity: DiagnosticSeverity::Info,
+                    message: format!(
+                        "Could not verify Worker {} on Runtime {}: {}",
+                        record.runtime_worker_id,
+                        record.runtime_id,
+                        sanitize_backend_error(&error.into_error().to_string())
+                    ),
+                }),
+            }
+        }
         let links = api.store.list_worker_workdir_links(
             &api.config.workspace_id,
             record.runtime_id.as_str(),
             record.runtime_worker_id,
         )?;
         items.push(merge_worker_registry_projection(
-            observed.get(&(record.runtime_id.clone(), record.runtime_worker_id.clone())),
+            observed.get(&(record.runtime_id.clone(), record.runtime_worker_id)),
             &record,
             links,
             &workdir_records,
@@ -3208,7 +3256,7 @@ fn workers_response(api: WorkspaceApi) -> ApiResult<RuntimeListResponse<WorkerSu
         limit,
         items,
         source: "backend_worker_registry".to_string(),
-        diagnostics: runtime_workers.diagnostics,
+        diagnostics,
     })
 }
 
@@ -4016,7 +4064,7 @@ fn worker_summary_from_registry(record: &WorkerRegistryRecord) -> WorkerSummary
         host_id: "backend-registry".to_string(),
         role: None,
         label: record.display_name.clone(),
-        state: "archived".to_string(),
+        state: "missing".to_string(),
         last_seen_at: Some(record.updated_at.clone()),
         pinned: record.retention_state == "pinned",
         retention_state: record.retention_state.clone(),
@@ -4032,14 +4080,14 @@ fn worker_summary_from_registry(record: &WorkerRegistryRecord) -> WorkerSummary
         profile: record.profile.clone(),
         implementation: WorkerImplementationSummary {
             kind: "backend_worker_registry".to_string(),
-            display_hint: "Archived Worker".to_string(),
+            display_hint: "Missing Worker".to_string(),
         },
         working_directory: None,
         diagnostics: vec![RuntimeDiagnostic {
-            code: "backend_worker_registry_only".to_string(),
+            code: "backend_worker_missing".to_string(),
             severity: DiagnosticSeverity::Info,
             message:
-                "Worker is preserved in the Backend registry without a live Runtime observation"
+                "Worker is preserved in the Backend registry but the Runtime did not find it by id"
                     .to_string(),
         }],
     }
@@ -4874,12 +4922,12 @@ mod tests {
     const TEST_CREATED_AT: &str = "2026-06-23T06:43:28Z";
 
     #[test]
-    fn backend_worker_projection_preserves_archive_rows_links_and_redacts_paths() {
+    fn backend_worker_projection_preserves_missing_rows_links_and_redacts_paths() {
         let worker = WorkerRegistryRecord {
             workspace_id: "workspace-1".to_string(),
             runtime_id: "embedded".to_string(),
             runtime_worker_id: 1,
-            display_name: "Archived Worker".to_string(),
+            display_name: "Missing Worker".to_string(),
             profile: Some("builtin:coder".to_string()),
             retention_state: "pinned".to_string(),
             transcript_ref: Some("runtime://embedded/workers/worker-1/transcript".to_string()),
@@ -4914,8 +4962,7 @@ mod tests {
 
         let projected = merge_worker_registry_projection(None, &worker, vec![link], &[workdir]);
 
-        assert_eq!(projected.state, "archived");
-        assert_eq!(projected.state, "archived");
+        assert_eq!(projected.state, "missing");
         assert_eq!(
             projected.working_directory.as_ref().unwrap().status,
             WorkingDirectoryStatusKind::Removed
diff --git a/web/workspace/src/lib/workspace-console/worker-console.ui.test.ts b/web/workspace/src/lib/workspace-console/worker-console.ui.test.ts
index c7cd3ed4..d3801023 100644
--- a/web/workspace/src/lib/workspace-console/worker-console.ui.test.ts
+++ b/web/workspace/src/lib/workspace-console/worker-console.ui.test.ts
@@ -39,14 +39,15 @@ Deno.test("workspace Worker list lives on the dedicated Workers page", async ()
   assert(
     workersPage.includes("workerConsoleHref(worker, data.workspaceId)") &&
       workersPage.includes('<table class="workers-table">') &&
-      workersPage.includes("Open Console"),
-    "dedicated Workers page should expose a table and attach action per Worker",
+      workersPage.includes('class="icon-action"') &&
+      workersPage.includes('Delete ${worker.label}'),
+    "dedicated Workers page should expose a table, console link target, and icon actions per Worker",
   );
   assert(
     workersNav.includes("href={`/w/${workspaceId}/workers`}") &&
-      workersNav.includes("canOpenWorkerConsole(worker)") &&
-      workersNav.includes('aria-disabled="true"'),
-    "Workers sidebar should link to the Worker list page and render archived Workers as disabled rows",
+      workersNav.includes("filter(canShowWorkerInSidebar)") &&
+      !workersNav.includes('aria-disabled="true"'),
+    "Workers sidebar should link to the Worker list page and omit registry-only Workers",
   );
   assert(
     !sidebar.includes("CompanionNavSection") &&
diff --git a/web/workspace/src/lib/workspace-sidebar/WorkersNavSection.svelte b/web/workspace/src/lib/workspace-sidebar/WorkersNavSection.svelte
index 1bb89c7c..70937890 100644
--- a/web/workspace/src/lib/workspace-sidebar/WorkersNavSection.svelte
+++ b/web/workspace/src/lib/workspace-sidebar/WorkersNavSection.svelte
@@ -1,7 +1,7 @@
 <script lang="ts">
   import { workspaceApiPath } from '$lib/workspace-api/http';
   import { workerConsoleHref } from '$lib/workspace-console/model';
-  import { canOpenWorkerConsole } from './workers';
+  import { canShowWorkerInSidebar } from './workers';
   import type { ListResponse, Worker } from './types';
 
   const MAX_VISIBLE_WORKERS = 6;
@@ -49,7 +49,9 @@
         throw new Error(`workers request failed (${response.status})`);
       }
       const payload = (await response.json()) as ListResponse<Worker>;
-      workers = Array.isArray(payload.items) ? payload.items.slice(0, MAX_VISIBLE_WORKERS) : [];
+      workers = Array.isArray(payload.items)
+        ? payload.items.filter(canShowWorkerInSidebar).slice(0, MAX_VISIBLE_WORKERS)
+        : [];
       if (workers.length === 0) {
         placeholder = 'No workers reported by the current API.';
       }
@@ -100,31 +102,17 @@
     <ul class="nav-list" aria-label="Workers">
       {#each workers as worker (`${worker.runtime_id}:${worker.worker_id}`)}
         {@const href = workerConsoleHref(worker, workspaceId)}
-        {@const consoleAvailable = canOpenWorkerConsole(worker)}
         <li>
-          {#if consoleAvailable}
-            <a href={href} class="nav-item worker-nav-item" class:active={currentPath === href} aria-current={currentPath === href ? 'page' : undefined}>
-              <span class="worker-title-row">
-                <span class="item-title">{worker.label}</span>
-                <span class="worker-task-title">-</span>
-              </span>
-              <span class="item-meta">
-                {worker.role ? `${worker.role} · ` : ''}{worker.state} · 🖥 {worker.host_id}
-                {worker.working_directory ? ` · wd:${worker.working_directory.repository_id}@${worker.working_directory.resolved_commit.slice(0, 8)}` : ''}
-              </span>
-            </a>
-          {:else}
-            <div class="nav-item worker-nav-item disabled" aria-disabled="true">
-              <span class="worker-title-row">
-                <span class="item-title">{worker.label}</span>
-                <span class="worker-task-title">archived</span>
-              </span>
-              <span class="item-meta">
-                {worker.role ? `${worker.role} · ` : ''}{worker.state} · 🖥 {worker.host_id}
-                {worker.working_directory ? ` · wd:${worker.working_directory.repository_id}@${worker.working_directory.resolved_commit.slice(0, 8)}` : ''}
-              </span>
-            </div>
-          {/if}
+          <a href={href} class="nav-item worker-nav-item" class:active={currentPath === href} aria-current={currentPath === href ? 'page' : undefined}>
+            <span class="worker-title-row">
+              <span class="item-title">{worker.label}</span>
+              <span class="worker-task-title">-</span>
+            </span>
+            <span class="item-meta">
+              {worker.role ? `${worker.role} · ` : ''}{worker.state} · 🖥 {worker.host_id}
+              {worker.working_directory ? ` · wd:${worker.working_directory.repository_id}@${worker.working_directory.resolved_commit.slice(0, 8)}` : ''}
+            </span>
+          </a>
         </li>
       {/each}
     </ul>
diff --git a/web/workspace/src/lib/workspace-sidebar/workers.test.ts b/web/workspace/src/lib/workspace-sidebar/workers.test.ts
index d7b07cd4..3f12120e 100644
--- a/web/workspace/src/lib/workspace-sidebar/workers.test.ts
+++ b/web/workspace/src/lib/workspace-sidebar/workers.test.ts
@@ -1,4 +1,4 @@
-import { canOpenWorkerConsole } from "./workers.ts";
+import { canOpenWorkerConsole, canShowWorkerInSidebar } from "./workers.ts";
 import type { Worker } from "./types.ts";
 
 declare const Deno: {
@@ -14,7 +14,7 @@ function assertEquals<T>(actual: T, expected: T): void {
 function worker(overrides: Partial<Worker>): Worker {
   return {
     runtime_id: "arc",
-    worker_id: "worker-1",
+    worker_id: "1",
     host_id: "host",
     label: "worker-1",
     role: null,
@@ -39,24 +39,25 @@ function worker(overrides: Partial<Worker>): Worker {
   };
 }
 
-Deno.test("canOpenWorkerConsole rejects archived registry-only workers", () => {
-  assertEquals(
-    canOpenWorkerConsole(worker({
-      state: "archived",
-      implementation: {
-        kind: "backend_worker_registry",
-        display_hint: "Archived Worker",
-      },
-      capabilities: {
-        can_accept_input: false,
-        can_stop: false,
-        can_spawn_followup: false,
-      },
-    })),
-    false,
-  );
+Deno.test("registry-only workers are not sidebar targets or console targets", () => {
+  const registryOnly = worker({
+    state: "missing",
+    implementation: {
+      kind: "backend_worker_registry",
+      display_hint: "Missing Worker",
+    },
+    capabilities: {
+      can_accept_input: false,
+      can_stop: false,
+      can_spawn_followup: false,
+    },
+  });
+  assertEquals(canShowWorkerInSidebar(registryOnly), false);
+  assertEquals(canOpenWorkerConsole(registryOnly), false);
 });
 
-Deno.test("canOpenWorkerConsole accepts live runtime workers", () => {
-  assertEquals(canOpenWorkerConsole(worker({ state: "running" })), true);
+Deno.test("live runtime workers are sidebar targets and console targets", () => {
+  const liveWorker = worker({ state: "running" });
+  assertEquals(canShowWorkerInSidebar(liveWorker), true);
+  assertEquals(canOpenWorkerConsole(liveWorker), true);
 });
diff --git a/web/workspace/src/lib/workspace-sidebar/workers.ts b/web/workspace/src/lib/workspace-sidebar/workers.ts
index 79fadda5..bcf14592 100644
--- a/web/workspace/src/lib/workspace-sidebar/workers.ts
+++ b/web/workspace/src/lib/workspace-sidebar/workers.ts
@@ -1,6 +1,9 @@
 import type { Worker } from "./types";
 
-export function canOpenWorkerConsole(worker: Worker): boolean {
-  return worker.state !== "archived" &&
-    worker.implementation.kind !== "backend_worker_registry";
+export function canShowWorkerInSidebar(worker: Worker): boolean {
+  return worker.implementation.kind !== "backend_worker_registry";
+}
+
+export function canOpenWorkerConsole(worker: Worker): boolean {
+  return canShowWorkerInSidebar(worker);
 }
diff --git a/web/workspace/src/routes/w/[workspaceId]/workers/+page.svelte b/web/workspace/src/routes/w/[workspaceId]/workers/+page.svelte
index e5e49fbc..7f6b6984 100644
--- a/web/workspace/src/routes/w/[workspaceId]/workers/+page.svelte
+++ b/web/workspace/src/routes/w/[workspaceId]/workers/+page.svelte
@@ -5,32 +5,62 @@
   import type { CleanupWorkerCandidate, RuntimeCleanupExecutionResponse, RuntimeCleanupPlanResponse, Worker } from '$lib/workspace-sidebar/types';
   import type { PageProps } from './$types';
 
+  type WorkerActionKind = 'pin' | 'delete';
+
   let { data }: PageProps = $props();
   let statusMessage = $state<string | null>(null);
   let cleanupPlans = $state<Record<string, RuntimeCleanupPlanResponse>>({});
-  let busyCleanupTarget = $state<string | null>(null);
+  let busyAction = $state<{ workerKey: string; kind: WorkerActionKind } | null>(null);
 
   $effect(() => {
     cleanupPlans = data.cleanupPlans;
   });
 
-  async function setPinned(worker: Worker, pinned: boolean): Promise<void> {
-    statusMessage = null;
+  function workerKey(worker: Worker): string {
+    return `${worker.runtime_id}/${worker.worker_id}`;
+  }
+
+  function isActionBusy(worker: Worker, kind: WorkerActionKind): boolean {
+    return busyAction?.workerKey === workerKey(worker) && busyAction.kind === kind;
+  }
+
+  function actionsDisabled(): boolean {
+    return busyAction !== null;
+  }
+
+  async function refreshCleanupPlan(runtimeId: string): Promise<void> {
     const response = await fetch(
-      workspaceApiPath(
-        data.workspaceId,
-        `/runtimes/${encodeURIComponent(worker.runtime_id)}/workers/${encodeURIComponent(worker.worker_id)}/pin`,
-      ),
-      { method: pinned ? 'PUT' : 'DELETE' },
+      workspaceApiPath(data.workspaceId, `/runtimes/${encodeURIComponent(runtimeId)}/cleanup-plan`),
     );
-    const payload = await response.json().catch(() => null);
-    if (!response.ok) {
-      statusMessage = payload?.message ?? payload?.error ?? response.statusText;
-      return;
+    if (!response.ok) return;
+    const plan = (await response.json()) as RuntimeCleanupPlanResponse;
+    cleanupPlans = { ...cleanupPlans, [runtimeId]: plan };
+  }
+
+  async function setPinned(worker: Worker, pinned: boolean): Promise<void> {
+    if (busyAction) return;
+    busyAction = { workerKey: workerKey(worker), kind: 'pin' };
+    statusMessage = null;
+    try {
+      const response = await fetch(
+        workspaceApiPath(
+          data.workspaceId,
+          `/runtimes/${encodeURIComponent(worker.runtime_id)}/workers/${encodeURIComponent(worker.worker_id)}/pin`,
+        ),
+        { method: pinned ? 'PUT' : 'DELETE' },
+      );
+      const payload = await response.json().catch(() => null);
+      if (!response.ok) {
+        statusMessage = payload?.message ?? payload?.error ?? response.statusText;
+        return;
+      }
+      worker.pinned = Boolean(payload?.pinned);
+      worker.retention_state = payload?.retention_state ?? (worker.pinned ? 'pinned' : 'normal');
+      await refreshCleanupPlan(worker.runtime_id);
+      statusMessage = `${worker.label} ${worker.pinned ? 'pinned' : 'unpinned'}.`;
+    } finally {
+      busyAction = null;
     }
-    worker.pinned = Boolean(payload?.pinned);
-    worker.retention_state = payload?.retention_state ?? (worker.pinned ? 'pinned' : 'normal');
-    statusMessage = `${worker.label} ${worker.pinned ? 'pinned' : 'unpinned'}.`;
   }
 
   function cleanupCandidate(worker: Worker): CleanupWorkerCandidate | undefined {
@@ -39,10 +69,10 @@
     );
   }
 
-  async function deleteWorkerRegistryRow(worker: Worker, candidate: CleanupWorkerCandidate): Promise<void> {
-    if (!cleanupPlans?.[worker.runtime_id]) return;
+  async function deleteWorker(worker: Worker, candidate: CleanupWorkerCandidate): Promise<void> {
+    if (!cleanupPlans?.[worker.runtime_id] || busyAction) return;
     statusMessage = null;
-    busyCleanupTarget = candidate.target_id;
+    busyAction = { workerKey: workerKey(worker), kind: 'delete' };
     try {
       const plan = cleanupPlans[worker.runtime_id];
       const response = await fetch(
@@ -69,11 +99,11 @@
           (item) => !(item.runtime_id === worker.runtime_id && item.worker_id === worker.worker_id),
         );
       }
-      statusMessage = `Deleted Worker registry row for ${worker.label}.`;
+      statusMessage = `Deleted Worker ${worker.label}.`;
     } catch (error) {
       statusMessage = error instanceof Error ? error.message : 'Worker cleanup failed';
     } finally {
-      busyCleanupTarget = null;
+      busyAction = null;
     }
   }
 
@@ -103,7 +133,7 @@
   <header class="workers-page-header">
     <div>
       <h1 id="workers-heading">Workers</h1>
-      <p>Workers running or persisted for this workspace. Pinning only updates Backend retention.</p>
+      <p>Workers running or persisted for this workspace. Pinning updates Backend retention.</p>
       {#if statusMessage}<p>{statusMessage}</p>{/if}
     </div>
     <a class="section-action" href={`/w/${data.workspaceId}/workers/new`}>New Worker</a>
@@ -132,9 +162,15 @@
         <tbody>
           {#each data.workers.items as worker}
             {@const cleanup = cleanupCandidate(worker)}
+            {@const canDelete = cleanup && !cleanup.blocking_reason}
+            {@const anyActionDisabled = actionsDisabled()}
             <tr>
               <td>
-                <strong>{worker.label}</strong>
+                {#if canOpenWorkerConsole(worker)}
+                  <a class="worker-title-link" href={workerConsoleHref(worker, data.workspaceId)}><strong>{worker.label}</strong></a>
+                {:else}
+                  <strong>{worker.label}</strong>
+                {/if}
                 <small><code>{worker.worker_id}</code></small>
               </td>
               <td><code>{worker.runtime_id}</code></td>
@@ -143,24 +179,40 @@
               <td><span class="pill {worker.pinned ? 'success' : 'muted'}">{worker.retention_state ?? 'normal'}</span></td>
               <td>{workerDirectory(worker)}</td>
               <td>
-                {#if canOpenWorkerConsole(worker)}
-                  <a class="inline-link" href={workerConsoleHref(worker, data.workspaceId)}>Open Console</a>
-                {:else}
-                  <span class="muted" aria-disabled="true">Archived</span>
-                {/if}
-                <button type="button" onclick={() => setPinned(worker, !worker.pinned)}>
-                  {worker.pinned ? 'Unpin' : 'Pin'}
-                </button>
-                {#if cleanup}
+                <div class="worker-actions" aria-label={`Actions for ${worker.label}`}>
                   <button
+                    class="icon-action"
                     type="button"
-                    disabled={!!cleanup.blocking_reason || busyCleanupTarget === cleanup.target_id}
-                    title={cleanup.blocking_reason ?? cleanup.reason}
-                    onclick={() => deleteWorkerRegistryRow(worker, cleanup)}
+                    disabled={anyActionDisabled}
+                    aria-label={worker.pinned ? `Unpin ${worker.label}` : `Pin ${worker.label}`}
+                    title={worker.pinned ? 'Unpin' : 'Pin'}
+                    onclick={() => setPinned(worker, !worker.pinned)}
                   >
-                    {busyCleanupTarget === cleanup.target_id ? 'Deleting…' : 'Delete row'}
+                    {#if isActionBusy(worker, 'pin')}
+                      <span class="spinner" aria-hidden="true"></span>
+                    {:else if worker.pinned}
+                      <svg class="action-icon" aria-hidden="true" viewBox="0 0 24 24"><path d="M12 17v5" /><path d="M15 9.34V7a1 1 0 0 1 1-1 2 2 0 0 0 0-4H7.89" /><path d="m2 2 20 20" /><path d="M9 9v1.76a2 2 0 0 1-1.11 1.79l-1.78.9A2 2 0 0 0 5 15.24V16a1 1 0 0 0 1 1h11" /></svg>
+                    {:else}
+                      <svg class="action-icon" aria-hidden="true" viewBox="0 0 24 24"><path d="M12 17v5" /><path d="M9 10.76a2 2 0 0 1-1.11 1.79l-1.78.9A2 2 0 0 0 5 15.24V16a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1v-.76a2 2 0 0 0-1.11-1.79l-1.78-.9A2 2 0 0 1 15 10.76V7a1 1 0 0 1 1-1 2 2 0 0 0 0-4H8a2 2 0 0 0 0 4 1 1 0 0 1 1 1z" /></svg>
+                    {/if}
                   </button>
-                {/if}
+                  {#if cleanup}
+                    <button
+                      class="icon-action danger"
+                      type="button"
+                      disabled={!canDelete || anyActionDisabled}
+                      aria-label={`Delete ${worker.label}`}
+                      title={cleanup.blocking_reason ?? cleanup.reason}
+                      onclick={() => deleteWorker(worker, cleanup)}
+                    >
+                      {#if isActionBusy(worker, 'delete')}
+                        <span class="spinner" aria-hidden="true"></span>
+                      {:else}
+                        <svg class="action-icon" aria-hidden="true" viewBox="0 0 24 24"><path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6" /><path d="M3 6h18" /><path d="M8 6V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2" /></svg>
+                      {/if}
+                    </button>
+                  {/if}
+                </div>
               </td>
             </tr>
           {/each}
@@ -169,3 +221,78 @@
     </div>
   {/if}
 </section>
+
+<style>
+  .worker-title-link {
+    color: inherit;
+    text-decoration: none;
+  }
+
+  .worker-title-link:hover,
+  .worker-title-link:focus-visible {
+    color: var(--accent);
+    text-decoration: underline;
+  }
+
+  .worker-actions {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.35rem;
+  }
+
+  .icon-action {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    width: 2rem;
+    height: 2rem;
+    padding: 0;
+    border: 1px solid var(--border);
+    border-radius: 0.5rem;
+    background: var(--surface);
+    color: var(--text);
+    cursor: pointer;
+  }
+
+  .icon-action:hover:not(:disabled),
+  .icon-action:focus-visible:not(:disabled) {
+    border-color: var(--accent);
+    color: var(--accent);
+  }
+
+  .icon-action.danger:hover:not(:disabled),
+  .icon-action.danger:focus-visible:not(:disabled) {
+    border-color: var(--danger, oklch(60% 0.18 30));
+    color: var(--danger, oklch(60% 0.18 30));
+  }
+
+  .icon-action:disabled {
+    cursor: not-allowed;
+    opacity: 0.45;
+  }
+
+  .action-icon {
+    width: 1rem;
+    height: 1rem;
+    fill: none;
+    stroke: currentColor;
+    stroke-width: 2;
+    stroke-linecap: round;
+    stroke-linejoin: round;
+  }
+
+  .spinner {
+    width: 1rem;
+    height: 1rem;
+    border: 2px solid currentColor;
+    border-right-color: transparent;
+    border-radius: 999px;
+    animation: worker-action-spin 0.8s linear infinite;
+  }
+
+  @keyframes worker-action-spin {
+    to {
+      transform: rotate(360deg);
+    }
+  }
+</style>