diff --git a/.yoi/tickets/00001KWZ5KERY/item.md b/.yoi/tickets/00001KWZ5KERY/item.md
index dd93428b..379451ba 100644
--- a/.yoi/tickets/00001KWZ5KERY/item.md
+++ b/.yoi/tickets/00001KWZ5KERY/item.md
@@ -2,7 +2,7 @@
 title: 'Migrate Profiles to Decodal ProfileSourceArchive for Runtime launch'
 state: 'inprogress'
 created_at: '2026-07-07T20:51:35Z'
-updated_at: '2026-07-08T09:57:38Z'
+updated_at: '2026-07-08T10:21:42Z'
 assignee: null
 queued_by: 'workspace-panel'
 queued_at: '2026-07-08T09:11:22Z'
diff --git a/.yoi/tickets/00001KWZ5KERY/thread.md b/.yoi/tickets/00001KWZ5KERY/thread.md
index d1e51a0e..29e5b2c5 100644
--- a/.yoi/tickets/00001KWZ5KERY/thread.md
+++ b/.yoi/tickets/00001KWZ5KERY/thread.md
@@ -166,4 +166,28 @@ Validation performed:
 - nix build .#yoi --no-link
 
 
+---
+
+<!-- event: implementation_report author: hare at: 2026-07-08T10:21:42Z -->
+
+## Implementation report
+
+Follow-up review fixes for Decodal ProfileSourceArchive launch:
+
+- Replaced unsupported `tool_enabled` fields in embedded Decodal profiles with existing typed ProfileConfig fields (`feature`, plus the existing model/session/engine/memory/web fields where applicable) so archive resolution can materialize through Decodal and deserialize under `deny_unknown_fields`.
+- Removed archive selector fallback to `default`; missing selectors now return `ProfileArchiveError::MissingEntrypoint`.
+- Changed Workspace Backend embedded archive construction to reject unknown `Builtin` and `Named` selectors instead of mapping them to the default profile.
+- Added tests that resolve every embedded builtin `.dcdl` via the real Backend-built ProfileSourceArchive + Decodal + ProfileConfig path.
+- Added tests for unknown Builtin/Named selector rejection and no-default-fallback archive resolution.
+
+Validation performed:
+- git diff --check
+- cargo test -p worker-runtime --features ws-server,fs-store
+- cargo test -p yoi-workspace-server
+- cargo check -p yoi
+- cd web/workspace && deno task check && deno task test
+- yoi ticket doctor
+- nix build .#yoi --no-link
+
+
 ---
diff --git a/crates/worker-runtime/src/profile_archive.rs b/crates/worker-runtime/src/profile_archive.rs
index d0e9e9fd..cc7a6d09 100644
--- a/crates/worker-runtime/src/profile_archive.rs
+++ b/crates/worker-runtime/src/profile_archive.rs
@@ -323,7 +323,6 @@ impl VerifiedProfileSourceArchive {
             .manifest
             .entrypoints
             .get(selector)
-            .or_else(|| self.manifest.entrypoints.get("default"))
             .ok_or_else(|| ProfileArchiveError::MissingEntrypoint(selector.to_string()))?;
         let mut engine = Engine::new(ArchiveSourceLoader { archive: self });
         let source = self
@@ -534,6 +533,17 @@ mod tests {
         assert_eq!(manifest.worker.name, "archive-worker");
     }
 
+    #[test]
+    fn unknown_selector_does_not_fallback_to_default() {
+        let archive = sample_archive();
+        let verified = archive.verify().unwrap();
+        let root = tempfile::tempdir().unwrap();
+        assert!(matches!(
+            verified.resolve_profile("missing", root.path(), "archive-worker"),
+            Err(ProfileArchiveError::MissingEntrypoint(selector)) if selector == "missing"
+        ));
+    }
+
     #[test]
     fn archive_loader_rejects_undeclared_import() {
         let archive = sample_archive();
diff --git a/crates/workspace-server/src/hosts.rs b/crates/workspace-server/src/hosts.rs
index 9d0ea8d9..290657d3 100644
--- a/crates/workspace-server/src/hosts.rs
+++ b/crates/workspace-server/src/hosts.rs
@@ -1339,13 +1339,18 @@ impl WorkspaceWorkerRuntime for EmbeddedWorkerRuntime {
             .profile
             .clone()
             .unwrap_or_else(|| embedded_profile_selector(&request.intent));
-        let config_bundle = match self
-            .runtime
-            .store_config_bundle(default_embedded_config_bundle(&profile))
-        {
+        let config_bundle = match default_embedded_config_bundle(&profile).and_then(|bundle| {
+            self.runtime
+                .store_config_bundle(bundle)
+                .map_err(|err| err.to_string())
+        }) {
             Ok(availability) => availability.reference,
             Err(error) => {
-                diagnostics.push(embedded_runtime_diagnostic(&error));
+                diagnostics.push(diagnostic(
+                    "embedded_profile_source_archive_invalid",
+                    DiagnosticSeverity::Error,
+                    error,
+                ));
                 return WorkerSpawnResult {
                     state: WorkerOperationState::Rejected,
                     worker: None,
@@ -2020,7 +2025,18 @@ impl WorkspaceWorkerRuntime for RemoteWorkerRuntime {
             .profile
             .clone()
             .unwrap_or_else(|| embedded_profile_selector(&request.intent));
-        let sync = self.sync_config_bundle(default_embedded_config_bundle(&profile));
+        let sync = match default_embedded_config_bundle(&profile) {
+            Ok(bundle) => self.sync_config_bundle(bundle),
+            Err(error) => ConfigBundleSyncResult {
+                state: WorkerOperationState::Rejected,
+                availability: None,
+                diagnostics: vec![diagnostic(
+                    "remote_profile_source_archive_invalid",
+                    DiagnosticSeverity::Error,
+                    error,
+                )],
+            },
+        };
         let Some(config_bundle) = sync.availability.map(|availability| availability.reference)
         else {
             return WorkerSpawnResult {
@@ -2349,14 +2365,14 @@ fn embedded_worker_execution_status_label(
     }
 }
 
-fn default_embedded_config_bundle(profile: &ProfileSelector) -> ConfigBundle {
+fn default_embedded_config_bundle(profile: &ProfileSelector) -> Result<ConfigBundle, String> {
     let id = format!(
         "workspace-runtime-{}",
         embedded_profile_label(profile)
             .unwrap_or_else(|| "default".to_string())
             .replace([':', '/', ' '], "-")
     );
-    ConfigBundle {
+    Ok(ConfigBundle {
         metadata: ConfigBundleMetadata {
             id,
             digest: String::new(),
@@ -2373,13 +2389,16 @@ fn default_embedded_config_bundle(profile: &ProfileSelector) -> ConfigBundle {
             label: embedded_profile_label(profile),
         }],
         declarations: Vec::new(),
-        profile_source_archive: Some(default_profile_source_archive(profile)),
+        profile_source_archive: Some(default_profile_source_archive(profile)?),
     }
-    .with_computed_digest()
+    .with_computed_digest())
 }
 
-fn default_profile_source_archive(profile: &ProfileSelector) -> ProfileSourceArchive {
+fn default_profile_source_archive(
+    profile: &ProfileSelector,
+) -> Result<ProfileSourceArchive, String> {
     let selected = embedded_profile_label(profile).unwrap_or_else(|| "default".to_string());
+    let selected_path = embedded_profile_path(profile)?;
     let mut entrypoints = BTreeMap::new();
     entrypoints.insert("default".to_string(), "profiles/default.dcdl".to_string());
     entrypoints.insert(
@@ -2389,7 +2408,7 @@ fn default_profile_source_archive(profile: &ProfileSelector) -> ProfileSourceArc
     for slug in ["companion", "intake", "orchestrator", "coder", "reviewer"] {
         entrypoints.insert(format!("builtin:{slug}"), format!("profiles/{slug}.dcdl"));
     }
-    entrypoints.insert(selected, embedded_profile_path(profile));
+    entrypoints.insert(selected, selected_path);
 
     let mut sources = BTreeMap::new();
     sources.insert(
@@ -2423,22 +2442,22 @@ fn default_profile_source_archive(profile: &ProfileSelector) -> ProfileSourceArc
         imports: BTreeMap::new(),
         sources,
     })
-    .expect("builtin Decodal profile source archive is valid")
+    .map_err(|err| err.to_string())
 }
 
-fn embedded_profile_path(profile: &ProfileSelector) -> String {
+fn embedded_profile_path(profile: &ProfileSelector) -> Result<String, String> {
     match profile {
-        ProfileSelector::RuntimeDefault => "profiles/default.dcdl".to_string(),
-        ProfileSelector::Builtin(name) | ProfileSelector::Named(name) => {
-            match name.strip_prefix("builtin:").unwrap_or(name) {
-                "companion" => "profiles/companion.dcdl".to_string(),
-                "intake" => "profiles/intake.dcdl".to_string(),
-                "orchestrator" => "profiles/orchestrator.dcdl".to_string(),
-                "coder" => "profiles/coder.dcdl".to_string(),
-                "reviewer" => "profiles/reviewer.dcdl".to_string(),
-                _ => "profiles/default.dcdl".to_string(),
-            }
-        }
+        ProfileSelector::RuntimeDefault => Ok("profiles/default.dcdl".to_string()),
+        ProfileSelector::Builtin(name) => match name.strip_prefix("builtin:").unwrap_or(name) {
+            "default" => Ok("profiles/default.dcdl".to_string()),
+            "companion" => Ok("profiles/companion.dcdl".to_string()),
+            "intake" => Ok("profiles/intake.dcdl".to_string()),
+            "orchestrator" => Ok("profiles/orchestrator.dcdl".to_string()),
+            "coder" => Ok("profiles/coder.dcdl".to_string()),
+            "reviewer" => Ok("profiles/reviewer.dcdl".to_string()),
+            other => Err(format!("unknown builtin profile selector: builtin:{other}")),
+        },
+        ProfileSelector::Named(name) => Err(format!("unknown named profile selector: {name}")),
     }
 }
 
@@ -2945,6 +2964,49 @@ mod tests {
     use std::sync::{Arc, Mutex};
     use std::thread;
 
+    #[test]
+    fn embedded_builtin_decodal_profiles_resolve_through_archive() {
+        let root = tempfile::tempdir().unwrap();
+        for selector in [
+            ProfileSelector::RuntimeDefault,
+            ProfileSelector::Builtin("builtin:companion".to_string()),
+            ProfileSelector::Builtin("builtin:intake".to_string()),
+            ProfileSelector::Builtin("builtin:orchestrator".to_string()),
+            ProfileSelector::Builtin("builtin:coder".to_string()),
+            ProfileSelector::Builtin("builtin:reviewer".to_string()),
+        ] {
+            let bundle = default_embedded_config_bundle(&selector).unwrap();
+            let archive = bundle
+                .profile_source_archive
+                .as_ref()
+                .unwrap()
+                .verify()
+                .unwrap();
+            let selector_key = match &selector {
+                ProfileSelector::RuntimeDefault => "default".to_string(),
+                ProfileSelector::Builtin(name) => name.clone(),
+                ProfileSelector::Named(name) => name.clone(),
+            };
+            let manifest = archive
+                .resolve_profile(&selector_key, root.path(), "embedded-test-worker")
+                .unwrap();
+            assert_eq!(manifest.worker.name, "embedded-test-worker");
+        }
+    }
+
+    #[test]
+    fn embedded_archive_rejects_unknown_selectors() {
+        assert!(
+            default_embedded_config_bundle(&ProfileSelector::Builtin(
+                "builtin:missing".to_string()
+            ))
+            .is_err()
+        );
+        assert!(
+            default_embedded_config_bundle(&ProfileSelector::Named("custom".to_string())).is_err()
+        );
+    }
+
     fn test_config_bundle() -> ConfigBundle {
         ConfigBundle {
             metadata: worker_runtime::config_bundle::ConfigBundleMetadata {
diff --git a/resources/profiles/coder.dcdl b/resources/profiles/coder.dcdl
index bdd296a0..6e6e241b 100644
--- a/resources/profiles/coder.dcdl
+++ b/resources/profiles/coder.dcdl
@@ -2,12 +2,11 @@ slug = "coder";
 description = "Ticket implementation coder profile.";
 scope = "workspace_write";
 
-tool_enabled = {
-    bash = true;
-    read = true;
-    write = true;
-    edit = true;
-    grep = true;
-    glob = true;
-    memory = true;
+feature = {
+    task = { enabled = true; };
+    memory = { enabled = true; };
+    web = { enabled = true; };
+    workers = { enabled = false; };
+    ticket = { enabled = false; access = "lifecycle"; };
+    ticket_orchestration = { enabled = false; };
 };
diff --git a/resources/profiles/companion.dcdl b/resources/profiles/companion.dcdl
index 21951a82..e18736d9 100644
--- a/resources/profiles/companion.dcdl
+++ b/resources/profiles/companion.dcdl
@@ -2,14 +2,11 @@ slug = "companion";
 description = "Workspace companion profile.";
 scope = "workspace_write";
 
-tool_enabled = {
-    bash = true;
-    read = true;
-    write = true;
-    edit = true;
-    grep = true;
-    glob = true;
-    web_search = true;
-    web_fetch = true;
-    memory = true;
+feature = {
+    task = { enabled = true; };
+    memory = { enabled = true; };
+    web = { enabled = true; };
+    workers = { enabled = true; };
+    ticket = { enabled = false; access = "lifecycle"; };
+    ticket_orchestration = { enabled = false; };
 };
diff --git a/resources/profiles/default.dcdl b/resources/profiles/default.dcdl
index dac27d15..4fb756e4 100644
--- a/resources/profiles/default.dcdl
+++ b/resources/profiles/default.dcdl
@@ -1,21 +1,38 @@
 slug = "default";
-description = "General Yoi companion profile.";
+description = "Default Yoi coding profile.";
 scope = "workspace_write";
 
 model = {
-    scheme = "codex";
-    model_id = "gpt-5";
-    auth = { kind = "codex_oauth"; };
+    ref = "codex-oauth/gpt-5.5";
 };
 
-tool_enabled = {
-    bash = true;
-    read = true;
-    write = true;
-    edit = true;
-    grep = true;
-    glob = true;
-    web_search = true;
-    web_fetch = true;
-    memory = true;
+session = {
+    record_event_trace = true;
+};
+
+engine = {
+    reasoning = "high";
+};
+
+feature = {
+    task = { enabled = true; };
+    memory = { enabled = true; };
+    web = { enabled = true; };
+    workers = { enabled = true; };
+    ticket = { enabled = false; access = "lifecycle"; };
+    ticket_orchestration = { enabled = false; };
+};
+
+memory = {
+    extract_threshold = 50000;
+    consolidation_threshold_files = 5;
+    consolidation_threshold_bytes = 50000;
+};
+
+web = {
+    enabled = true;
+    search = {
+        provider = "brave";
+        api_key_secret = "web/brave/default";
+    };
 };
diff --git a/resources/profiles/intake.dcdl b/resources/profiles/intake.dcdl
index 59ef69e3..ae2c1d72 100644
--- a/resources/profiles/intake.dcdl
+++ b/resources/profiles/intake.dcdl
@@ -2,12 +2,11 @@ slug = "intake";
 description = "Ticket intake profile.";
 scope = "workspace_write";
 
-tool_enabled = {
-    bash = true;
-    read = true;
-    write = true;
-    edit = true;
-    grep = true;
-    glob = true;
-    memory = true;
+feature = {
+    task = { enabled = false; };
+    memory = { enabled = true; };
+    web = { enabled = true; };
+    workers = { enabled = false; };
+    ticket = { enabled = true; access = "lifecycle"; };
+    ticket_orchestration = { enabled = false; };
 };
diff --git a/resources/profiles/orchestrator.dcdl b/resources/profiles/orchestrator.dcdl
index cc68e62f..0012818c 100644
--- a/resources/profiles/orchestrator.dcdl
+++ b/resources/profiles/orchestrator.dcdl
@@ -2,12 +2,11 @@ slug = "orchestrator";
 description = "Ticket orchestrator profile.";
 scope = "workspace_write";
 
-tool_enabled = {
-    bash = true;
-    read = true;
-    write = true;
-    edit = true;
-    grep = true;
-    glob = true;
-    memory = true;
+feature = {
+    task = { enabled = true; };
+    memory = { enabled = true; };
+    web = { enabled = true; };
+    workers = { enabled = true; };
+    ticket = { enabled = true; access = "lifecycle"; };
+    ticket_orchestration = { enabled = true; };
 };
diff --git a/resources/profiles/reviewer.dcdl b/resources/profiles/reviewer.dcdl
index 8de04f17..91c41e5c 100644
--- a/resources/profiles/reviewer.dcdl
+++ b/resources/profiles/reviewer.dcdl
@@ -2,10 +2,11 @@ slug = "reviewer";
 description = "Ticket review profile.";
 scope = "workspace_read";
 
-tool_enabled = {
-    bash = true;
-    read = true;
-    grep = true;
-    glob = true;
-    memory = true;
+feature = {
+    task = { enabled = true; };
+    memory = { enabled = true; };
+    web = { enabled = true; };
+    workers = { enabled = false; };
+    ticket = { enabled = false; access = "lifecycle"; };
+    ticket_orchestration = { enabled = false; };
 };