diff --git a/docs/internal/events.md b/docs/internal/events.md
index 2a2274766..837f55854 100644
--- a/docs/internal/events.md
+++ b/docs/internal/events.md
@@ -44,7 +44,6 @@ Emitted when the run record is created.
   "event": "run.created",
   "properties": {
     "workflow_slug": "my-workflow",
-    "run_dir": "/home/user/.fabro/storage/scratch/20260428-01JQXYZ",
     "source_directory": "/home/user/src/my-project",
     "repo_origin_url": "https://github.com/acme/my-project.git",
     "base_branch": "main",
@@ -79,20 +78,21 @@ Emitted when the run record is created.
 | `settings` | object | Workflow settings snapshot |
 | `graph` | object | Parsed workflow graph |
 | `workflow_source` | string? | Workflow source text |
-| `workflow_config` | string? | Workflow config text |
 | `labels` | object | Run labels |
-| `run_dir` | string | Local scratch directory for the run |
 | `source_directory` | string? | Submitter-side source directory |
 | `repo_origin_url` | string? | Normalized repository origin URL used by clone-based sandboxes |
 | `base_branch` | string? | Submitter-side base branch |
 | `workflow_slug` | string? | Workflow slug |
-| `db_prefix` | string? | Store prefix used for the run |
 | `provenance` | object | Actor and request provenance |
 | `manifest_blob` | string? | Blob id for the submitted manifest |
 | `pre_run_git` | object? | Submitter-side pre-run git context and push outcome |
 | `fork_source_ref` | object? | Source run/checkpoint reference when this run was forked |
 | `in_place` | boolean | Whether the run was created with `--in-place` (no git checkpoints) |
 
+Readers remain tolerant of the legacy `workflow_config`, `run_dir`, and
+`db_prefix` properties when replaying historical events, but newly emitted
+`run.created` events omit them.
+
 ### `run.started`
 
 Emitted when the workflow run begins.
diff --git a/lib/apps/fabro-cli/tests/it/cmd/attach.rs b/lib/apps/fabro-cli/tests/it/cmd/attach.rs
index 779157cdc..813bf7424 100644
--- a/lib/apps/fabro-cli/tests/it/cmd/attach.rs
+++ b/lib/apps/fabro-cli/tests/it/cmd/attach.rs
@@ -916,7 +916,6 @@ fn attach_json_errors_without_prompting_for_human_input() {
               "login": "dev"
             }
           },
-          "run_dir": "[RUN_DIR]",
           "settings": {
             "project": {
               "description": null,
diff --git a/lib/apps/fabro-cli/tests/it/cmd/events.rs b/lib/apps/fabro-cli/tests/it/cmd/events.rs
index 2a853d863..9de00fde9 100644
--- a/lib/apps/fabro-cli/tests/it/cmd/events.rs
+++ b/lib/apps/fabro-cli/tests/it/cmd/events.rs
@@ -115,11 +115,6 @@ fn events_completed_run_reads_store_without_progress_jsonl() {
         r#""id":"[0-9a-f-]+""#.to_string(),
         r#""id":"[EVENT_ID]""#.to_string(),
     ));
-    filters.push((
-        r#""run_dir":"(?:\[DRY_RUN_DIR\]|\[STORAGE_DIR\]/scratch/REDACTED)""#.to_string(),
-        r#""run_dir":"[RUN_DIR]""#.to_string(),
-    ));
-
     let mut cmd = context.command();
     cmd.args(["events", "--tail", "2", &run.run_id]);
 
@@ -146,10 +141,6 @@ fn events_tail_limits_output() {
         r#""id":"[0-9a-f-]+""#.to_string(),
         r#""id":"[EVENT_ID]""#.to_string(),
     ));
-    filters.push((
-        r#""run_dir":"(?:\[DRY_RUN_DIR\]|\[STORAGE_DIR\]/scratch/REDACTED)""#.to_string(),
-        r#""run_dir":"[RUN_DIR]""#.to_string(),
-    ));
     let mut cmd = context.command();
     cmd.args(["events", "--tail", "2", &run.run_id]);
 
diff --git a/lib/apps/fabro-cli/tests/it/cmd/mcp.rs b/lib/apps/fabro-cli/tests/it/cmd/mcp.rs
index e810bd4d9..aaddb71b7 100644
--- a/lib/apps/fabro-cli/tests/it/cmd/mcp.rs
+++ b/lib/apps/fabro-cli/tests/it/cmd/mcp.rs
@@ -2069,7 +2069,6 @@ async fn mcp_events_decodes_run_created_with_model_keyed_fallbacks() {
             "settings": settings,
             "graph": Graph::new("Remote Workflow"),
             "labels": {},
-            "run_dir": "/tmp/run",
             "source_directory": "/srv/repo",
             "provenance": test_support::test_run_provenance()
         },
diff --git a/lib/apps/fabro-server/src/server/handler/events.rs b/lib/apps/fabro-server/src/server/handler/events.rs
index 3418c2cda..1bfb7f889 100644
--- a/lib/apps/fabro-server/src/server/handler/events.rs
+++ b/lib/apps/fabro-server/src/server/handler/events.rs
@@ -621,13 +621,10 @@ mod stage_events_tests {
             settings:         serde_json::to_value(WorkflowSettings::default()).unwrap(),
             graph:            serde_json::to_value(Graph::new("test")).unwrap(),
             workflow_source:  None,
-            workflow_config:  None,
             labels:           std::collections::BTreeMap::new(),
-            run_dir:          "/tmp/test".to_string(),
             source_directory: None,
             workflow_slug:    None,
             automation:       None,
-            db_prefix:        None,
             provenance:       test_support::test_run_provenance(),
             manifest_blob:    None,
             git:              None,
diff --git a/lib/apps/fabro-server/src/server/handler/pair.rs b/lib/apps/fabro-server/src/server/handler/pair.rs
index 82208b592..ec31d2e54 100644
--- a/lib/apps/fabro-server/src/server/handler/pair.rs
+++ b/lib/apps/fabro-server/src/server/handler/pair.rs
@@ -1021,13 +1021,10 @@ mod tests {
             settings: serde_json::to_value(WorkflowSettings::default()).unwrap(),
             graph: serde_json::to_value(Graph::new("test")).unwrap(),
             workflow_source: None,
-            workflow_config: None,
             labels: std::collections::BTreeMap::new(),
-            run_dir: "/tmp/test".to_string(),
             source_directory: None,
             workflow_slug: None,
             automation: None,
-            db_prefix: None,
             provenance: test_support::test_run_provenance(),
             manifest_blob: None,
             git: None,
diff --git a/lib/apps/fabro-server/src/server/handler/sandbox.rs b/lib/apps/fabro-server/src/server/handler/sandbox.rs
index 53877c5c9..b42d7920d 100644
--- a/lib/apps/fabro-server/src/server/handler/sandbox.rs
+++ b/lib/apps/fabro-server/src/server/handler/sandbox.rs
@@ -1365,7 +1365,6 @@ mod retrieve_sandbox_tests {
                 "properties": {
                     "settings": WorkflowSettings::default(),
                     "graph": Graph::new("test"),
-                    "run_dir": "/tmp/test",
                     "provenance": test_support::test_run_provenance(),
                 },
             }),
diff --git a/lib/apps/fabro-server/src/server/tests.rs b/lib/apps/fabro-server/src/server/tests.rs
index ec44728d8..e2e27a7fd 100644
--- a/lib/apps/fabro-server/src/server/tests.rs
+++ b/lib/apps/fabro-server/src/server/tests.rs
@@ -4569,13 +4569,10 @@ async fn append_default_run_created(run_store: &fabro_store::RunDatabase, run_id
         settings: serde_json::to_value(WorkflowSettings::default()).unwrap(),
         graph: serde_json::to_value(Graph::new("test")).unwrap(),
         workflow_source: None,
-        workflow_config: None,
         labels: std::collections::BTreeMap::default(),
-        run_dir: "/tmp".to_string(),
         source_directory: None,
         workflow_slug: None,
         automation: None,
-        db_prefix: None,
         provenance: test_support::test_run_provenance(),
         manifest_blob: None,
         git: None,
@@ -4623,13 +4620,10 @@ async fn create_slack_notification_run(
         settings: serde_json::to_value(settings).unwrap(),
         graph: serde_json::to_value(Graph::new(graph_name)).unwrap(),
         workflow_source: None,
-        workflow_config: None,
         labels: std::collections::BTreeMap::default(),
-        run_dir: "/tmp".to_string(),
         source_directory: None,
         workflow_slug: workflow_slug.map(str::to_string),
         automation: None,
-        db_prefix: None,
         provenance: test_support::test_run_provenance(),
         manifest_blob: None,
         git: None,
@@ -5699,13 +5693,10 @@ async fn list_run_stages_distinguishes_visits() {
             settings: serde_json::to_value(fabro_types::WorkflowSettings::default()).unwrap(),
             graph: serde_json::to_value(&graph).unwrap(),
             workflow_source: None,
-            workflow_config: None,
             labels: std::collections::BTreeMap::default(),
-            run_dir: String::new(),
             source_directory: None,
             workflow_slug: Some("test".to_string()),
             automation: None,
-            db_prefix: None,
             provenance: test_support::test_run_provenance(),
             manifest_blob: None,
             git: None,
@@ -5838,13 +5829,10 @@ async fn list_run_stages_exposes_execution_identity_for_resumed_stage() {
             settings: serde_json::to_value(fabro_types::WorkflowSettings::default()).unwrap(),
             graph: serde_json::to_value(&graph).unwrap(),
             workflow_source: None,
-            workflow_config: None,
             labels: std::collections::BTreeMap::default(),
-            run_dir: String::new(),
             source_directory: None,
             workflow_slug: Some("test".to_string()),
             automation: None,
-            db_prefix: None,
             provenance: test_support::test_run_provenance(),
             manifest_blob: None,
             git: None,
@@ -7045,13 +7033,10 @@ async fn create_completed_run_ready_for_pull_request(
             settings: serde_json::to_value(&run_spec.settings).unwrap(),
             graph: serde_json::to_value(&run_spec.graph).unwrap(),
             workflow_source: None,
-            workflow_config: None,
             labels: run_spec.labels.clone().into_iter().collect(),
-            run_dir: run_spec.source_directory.clone().unwrap_or_default(),
             source_directory: run_spec.source_directory.clone(),
             workflow_slug: run_spec.workflow_slug.clone(),
             automation: None,
-            db_prefix: None,
             provenance: run_spec.provenance.clone(),
             manifest_blob: None,
             git,
@@ -10599,9 +10584,12 @@ async fn create_run_persists_manifest_and_definition_blobs_without_bundle_file()
     assert_eq!(accepted_definition["workflow_path"], "workflow.fabro");
     assert!(accepted_definition["workflows"]["workflow.fabro"].is_object());
 
-    created["properties"]["run_dir"]
-        .as_str()
-        .expect("run.created should include run_dir");
+    for removed in ["workflow_config", "run_dir", "db_prefix"] {
+        assert!(
+            created["properties"].get(removed).is_none(),
+            "new run.created events must omit {removed}"
+        );
+    }
 }
 
 #[tokio::test]
@@ -13869,13 +13857,10 @@ async fn create_preserved_local_sandbox_run(state: &Arc<AppState>, run_id: RunId
             settings: serde_json::to_value(settings).unwrap(),
             graph: serde_json::to_value(graph).unwrap(),
             workflow_source: None,
-            workflow_config: None,
             labels: std::collections::BTreeMap::default(),
-            run_dir: "/tmp/fabro-run".to_string(),
             source_directory: Some("/tmp/fabro-run".to_string()),
             workflow_slug: Some("test".to_string()),
             automation: None,
-            db_prefix: None,
             provenance: test_support::test_run_provenance(),
             manifest_blob: None,
             git: None,
@@ -14621,13 +14606,10 @@ async fn delete_run_retry_after_missing_provider_resource_removes_metadata() {
             settings: serde_json::to_value(fabro_types::WorkflowSettings::default()).unwrap(),
             graph: serde_json::to_value(graph).unwrap(),
             workflow_source: None,
-            workflow_config: None,
             labels: std::collections::BTreeMap::default(),
-            run_dir: "/tmp/fabro-run".to_string(),
             source_directory: Some("/tmp/fabro-run".to_string()),
             workflow_slug: Some("test".to_string()),
             automation: None,
-            db_prefix: None,
             provenance: test_support::test_run_provenance(),
             manifest_blob: None,
             git: None,
diff --git a/lib/apps/fabro-server/tests/it/api/run_files.rs b/lib/apps/fabro-server/tests/it/api/run_files.rs
index d2b355b32..6d286cbab 100644
--- a/lib/apps/fabro-server/tests/it/api/run_files.rs
+++ b/lib/apps/fabro-server/tests/it/api/run_files.rs
@@ -62,13 +62,10 @@ async fn append_completed_run_with_final_patch(
             .expect("workflow settings should serialize"),
         graph:            serde_json::to_value(Graph::new("test")).expect("graph should serialize"),
         workflow_source:  None,
-        workflow_config:  None,
         labels:           std::collections::BTreeMap::default(),
-        run_dir:          "/tmp".to_string(),
         source_directory: None,
         workflow_slug:    None,
         automation:       None,
-        db_prefix:        None,
         provenance:       test_support::test_run_provenance(),
         manifest_blob:    None,
         git:              None,
diff --git a/lib/components/fabro-store/src/slate/mod.rs b/lib/components/fabro-store/src/slate/mod.rs
index c5b1dfa0b..038b6527a 100644
--- a/lib/components/fabro-store/src/slate/mod.rs
+++ b/lib/components/fabro-store/src/slate/mod.rs
@@ -648,7 +648,6 @@ mod tests {
                 "graph": run_spec.graph,
                 "workflow_slug": run_spec.workflow_slug,
                 "source_directory": run_spec.source_directory,
-                "run_dir": format!("/tmp/{label}"),
                 "git": run_spec.git,
                 "labels": run_spec.labels,
                 "provenance": run_spec.provenance,
@@ -674,7 +673,6 @@ mod tests {
                 "graph": run_spec.graph,
                 "workflow_slug": run_spec.workflow_slug,
                 "source_directory": run_spec.source_directory,
-                "run_dir": format!("/tmp/{label}"),
                 "git": run_spec.git,
                 "labels": run_spec.labels,
                 "parent_id": parent_id,
@@ -1041,7 +1039,6 @@ mod tests {
                 "properties": {
                     "settings": WorkflowSettings::default(),
                     "graph": Graph::new("test"),
-                    "run_dir": "/tmp/test",
                     "provenance": test_support::test_run_provenance(),
                 },
             }),
@@ -1590,7 +1587,6 @@ mod tests {
                         "graph": run_spec["graph"],
                         "workflow_slug": run_spec["workflow_slug"],
                         "source_directory": run_spec["source_directory"],
-                        "run_dir": "/tmp/run-2",
                         "git": run_spec["git"],
                         "labels": run_spec["labels"],
                     },
diff --git a/lib/components/fabro-store/src/slate/run_store.rs b/lib/components/fabro-store/src/slate/run_store.rs
index be9ca78bf..ced57d33d 100644
--- a/lib/components/fabro-store/src/slate/run_store.rs
+++ b/lib/components/fabro-store/src/slate/run_store.rs
@@ -987,7 +987,6 @@ mod tests {
                 "properties": {
                     "settings": WorkflowSettings::default(),
                     "graph": Graph::new("test"),
-                    "run_dir": "/tmp/test",
                     "provenance": test_support::test_run_provenance(),
                 },
             }),
diff --git a/lib/components/fabro-workflow/src/event/sink.rs b/lib/components/fabro-workflow/src/event/sink.rs
index 25d1896ba..f6abb1724 100644
--- a/lib/components/fabro-workflow/src/event/sink.rs
+++ b/lib/components/fabro-workflow/src/event/sink.rs
@@ -284,13 +284,10 @@ mod tests {
             settings:         serde_json::to_value(WorkflowSettings::default()).unwrap(),
             graph:            serde_json::to_value(Graph::new("test")).unwrap(),
             workflow_source:  None,
-            workflow_config:  None,
             labels:           std::collections::BTreeMap::new(),
-            run_dir:          "/tmp/test".to_string(),
             source_directory: None,
             workflow_slug:    None,
             automation:       None,
-            db_prefix:        None,
             provenance:       test_support::test_run_provenance(),
             manifest_blob:    None,
             git:              None,
diff --git a/lib/components/fabro-workflow/src/git.rs b/lib/components/fabro-workflow/src/git.rs
index 6d3276ad9..de144b6a1 100644
--- a/lib/components/fabro-workflow/src/git.rs
+++ b/lib/components/fabro-workflow/src/git.rs
@@ -358,13 +358,10 @@ mod tests {
                 .unwrap(),
             graph:            serde_json::to_value(fabro_types::Graph::new("test")).unwrap(),
             workflow_source:  None,
-            workflow_config:  None,
             labels:           std::collections::BTreeMap::default(),
-            run_dir:          "/tmp".to_string(),
             source_directory: None,
             workflow_slug:    None,
             automation:       None,
-            db_prefix:        None,
             provenance:       test_support::test_run_provenance(),
             manifest_blob:    None,
             git:              None,
diff --git a/lib/components/fabro-workflow/src/handler/agent.rs b/lib/components/fabro-workflow/src/handler/agent.rs
index 4046e0af8..48b234a8b 100644
--- a/lib/components/fabro-workflow/src/handler/agent.rs
+++ b/lib/components/fabro-workflow/src/handler/agent.rs
@@ -495,13 +495,10 @@ mod tests {
                     .unwrap(),
                 graph:            serde_json::to_value(fabro_types::Graph::new("test")).unwrap(),
                 workflow_source:  None,
-                workflow_config:  None,
                 labels:           std::collections::BTreeMap::default(),
-                run_dir:          "/tmp".to_string(),
                 source_directory: None,
                 workflow_slug:    None,
                 automation:       None,
-                db_prefix:        None,
                 provenance:       test_support::test_run_provenance(),
                 manifest_blob:    None,
                 git:              None,
diff --git a/lib/components/fabro-workflow/src/handler/command.rs b/lib/components/fabro-workflow/src/handler/command.rs
index a8ac957fe..5dfc41e46 100644
--- a/lib/components/fabro-workflow/src/handler/command.rs
+++ b/lib/components/fabro-workflow/src/handler/command.rs
@@ -465,13 +465,10 @@ mod tests {
                 settings:         serde_json::to_value(WorkflowSettings::default()).unwrap(),
                 graph:            serde_json::to_value(Graph::new("test")).unwrap(),
                 workflow_source:  None,
-                workflow_config:  None,
                 labels:           std::collections::BTreeMap::default(),
-                run_dir:          "/tmp".to_string(),
                 source_directory: None,
                 workflow_slug:    None,
                 automation:       None,
-                db_prefix:        None,
                 provenance:       test_support::test_run_provenance(),
                 manifest_blob:    None,
                 git:              None,
diff --git a/lib/components/fabro-workflow/src/handler/parallel.rs b/lib/components/fabro-workflow/src/handler/parallel.rs
index 19a538cc6..62fc59630 100644
--- a/lib/components/fabro-workflow/src/handler/parallel.rs
+++ b/lib/components/fabro-workflow/src/handler/parallel.rs
@@ -950,13 +950,10 @@ mod tests {
                     .unwrap(),
                 graph:            serde_json::to_value(fabro_types::Graph::new("test")).unwrap(),
                 workflow_source:  None,
-                workflow_config:  None,
                 labels:           BTreeMap::default(),
-                run_dir:          "/tmp".to_string(),
                 source_directory: None,
                 workflow_slug:    None,
                 automation:       None,
-                db_prefix:        None,
                 provenance:       test_support::test_run_provenance(),
                 manifest_blob:    None,
                 git:              None,
diff --git a/lib/components/fabro-workflow/src/handler/prompt.rs b/lib/components/fabro-workflow/src/handler/prompt.rs
index 57ef7c740..d586ca6b7 100644
--- a/lib/components/fabro-workflow/src/handler/prompt.rs
+++ b/lib/components/fabro-workflow/src/handler/prompt.rs
@@ -273,13 +273,10 @@ mod tests {
                     .unwrap(),
                 graph:            serde_json::to_value(fabro_types::Graph::new("test")).unwrap(),
                 workflow_source:  None,
-                workflow_config:  None,
                 labels:           std::collections::BTreeMap::default(),
-                run_dir:          "/tmp".to_string(),
                 source_directory: None,
                 workflow_slug:    None,
                 automation:       None,
-                db_prefix:        None,
                 provenance:       test_support::test_run_provenance(),
                 manifest_blob:    None,
                 git:              None,
diff --git a/lib/components/fabro-workflow/src/lifecycle/git.rs b/lib/components/fabro-workflow/src/lifecycle/git.rs
index b08bd4307..fce72da6e 100644
--- a/lib/components/fabro-workflow/src/lifecycle/git.rs
+++ b/lib/components/fabro-workflow/src/lifecycle/git.rs
@@ -744,13 +744,10 @@ mod tests {
             settings: serde_json::to_value(WorkflowSettings::default()).unwrap(),
             graph: serde_json::to_value(fabro_types::Graph::new("metadata")).unwrap(),
             workflow_source: None,
-            workflow_config: None,
             labels: BTreeMap::new(),
-            run_dir: "/tmp/run".to_string(),
             source_directory: Some("/tmp/project".to_string()),
             workflow_slug: Some("metadata".to_string()),
             automation: None,
-            db_prefix: None,
             provenance: test_support::test_run_provenance(),
             manifest_blob: None,
             git: None,
diff --git a/lib/components/fabro-workflow/src/operations/archive.rs b/lib/components/fabro-workflow/src/operations/archive.rs
index cc25ab1a8..c44ff0006 100644
--- a/lib/components/fabro-workflow/src/operations/archive.rs
+++ b/lib/components/fabro-workflow/src/operations/archive.rs
@@ -221,13 +221,10 @@ mod tests {
                 .unwrap(),
             graph:            serde_json::to_value(fabro_types::Graph::new("test")).unwrap(),
             workflow_source:  None,
-            workflow_config:  None,
             labels:           std::collections::BTreeMap::default(),
-            run_dir:          "/tmp".to_string(),
             source_directory: None,
             workflow_slug:    None,
             automation:       None,
-            db_prefix:        None,
             provenance:       test_support::test_run_provenance(),
             manifest_blob:    None,
             git:              None,
diff --git a/lib/components/fabro-workflow/src/pipeline/execute/tests.rs b/lib/components/fabro-workflow/src/pipeline/execute/tests.rs
index af31798e3..b0bc2659f 100644
--- a/lib/components/fabro-workflow/src/pipeline/execute/tests.rs
+++ b/lib/components/fabro-workflow/src/pipeline/execute/tests.rs
@@ -213,13 +213,10 @@ async fn seed_created_and_starting(
         settings:         serde_json::to_value(&run_options.settings).unwrap(),
         graph:            serde_json::to_value(graph).unwrap(),
         workflow_source:  None,
-        workflow_config:  None,
         labels:           run_options.labels.clone().into_iter().collect(),
-        run_dir:          run_options.run_dir.display().to_string(),
         source_directory: Some(std::env::current_dir().unwrap().display().to_string()),
         workflow_slug:    run_options.workflow_slug.clone(),
         automation:       None,
-        db_prefix:        None,
         provenance:       test_support::test_run_provenance(),
         manifest_blob:    None,
         git:              run_options.pre_run_git.clone(),
diff --git a/lib/components/fabro-workflow/src/pipeline/finalize.rs b/lib/components/fabro-workflow/src/pipeline/finalize.rs
index 921f272db..8c497175d 100644
--- a/lib/components/fabro-workflow/src/pipeline/finalize.rs
+++ b/lib/components/fabro-workflow/src/pipeline/finalize.rs
@@ -782,13 +782,10 @@ mod tests {
             settings:         serde_json::to_value(WorkflowSettings::default()).unwrap(),
             graph:            serde_json::to_value(fabro_types::Graph::new("metadata")).unwrap(),
             workflow_source:  None,
-            workflow_config:  None,
             labels:           std::collections::BTreeMap::new(),
-            run_dir:          "/tmp/run".to_string(),
             source_directory: Some("/tmp/project".to_string()),
             workflow_slug:    Some("metadata".to_string()),
             automation:       None,
-            db_prefix:        None,
             provenance:       test_support::test_run_provenance(),
             manifest_blob:    None,
             git:              None,
diff --git a/lib/components/fabro-workflow/src/pipeline/initialize.rs b/lib/components/fabro-workflow/src/pipeline/initialize.rs
index f8be47c67..e4d526a12 100644
--- a/lib/components/fabro-workflow/src/pipeline/initialize.rs
+++ b/lib/components/fabro-workflow/src/pipeline/initialize.rs
@@ -1048,13 +1048,10 @@ mod tests {
             settings:         serde_json::to_value(&run_options.settings).unwrap(),
             graph:            serde_json::to_value(&graph).unwrap(),
             workflow_source:  None,
-            workflow_config:  None,
             labels:           BTreeMap::new(),
-            run_dir:          run_dir.display().to_string(),
             source_directory: Some(workspace.display().to_string()),
             workflow_slug:    Some("test".to_string()),
             automation:       None,
-            db_prefix:        None,
             provenance:       test_support::test_run_provenance(),
             manifest_blob:    None,
             git:              None,
diff --git a/lib/components/fabro-workflow/src/pipeline/persist.rs b/lib/components/fabro-workflow/src/pipeline/persist.rs
index 1cf6dd67a..58b647cab 100644
--- a/lib/components/fabro-workflow/src/pipeline/persist.rs
+++ b/lib/components/fabro-workflow/src/pipeline/persist.rs
@@ -155,7 +155,7 @@ mod tests {
         }
     }
 
-    async fn seeded_store(run_dir: &Path, record: &RunSpec, source: Option<&str>) -> RunDatabase {
+    async fn seeded_store(record: &RunSpec, source: Option<&str>) -> RunDatabase {
         let store = memory_store();
         let run_store = store.create_run(&record.run_id).await.unwrap();
         append_event(&run_store, &record.run_id, &Event::RunCreated {
@@ -164,13 +164,10 @@ mod tests {
             settings:         serde_json::to_value(&record.settings).unwrap(),
             graph:            serde_json::to_value(&record.graph).unwrap(),
             workflow_source:  source.map(ToOwned::to_owned),
-            workflow_config:  None,
             labels:           record.labels.clone().into_iter().collect(),
-            run_dir:          run_dir.to_string_lossy().to_string(),
             source_directory: record.source_directory.clone(),
             workflow_slug:    record.workflow_slug.clone(),
             automation:       record.automation.clone(),
-            db_prefix:        None,
             provenance:       record.provenance.clone(),
             manifest_blob:    None,
             git:              record.git.clone(),
@@ -250,7 +247,7 @@ mod tests {
         )
         .unwrap();
 
-        let run_store = seeded_store(&run_dir, &expected, Some(&source)).await;
+        let run_store = seeded_store(&expected, Some(&source)).await;
         let loaded = load_from_store(&run_store.clone().into(), &run_dir)
             .await
             .unwrap();
@@ -301,7 +298,7 @@ mod tests {
         let mut record = sample_record(different_graph());
         record.graph = graph;
 
-        let run_store = seeded_store(&run_dir, &record, None).await;
+        let run_store = seeded_store(&record, None).await;
         let loaded = load_from_store(&run_store.clone().into(), &run_dir)
             .await
             .unwrap();
@@ -319,7 +316,7 @@ mod tests {
         let mut record = sample_record(different_graph());
         record.graph = graph.clone();
 
-        let run_store = seeded_store(&run_dir, &record, Some(&source)).await;
+        let run_store = seeded_store(&record, Some(&source)).await;
         let loaded = load_from_store(&run_store.clone().into(), &run_dir)
             .await
             .unwrap();
diff --git a/lib/components/fabro-workflow/src/pipeline/pull_request.rs b/lib/components/fabro-workflow/src/pipeline/pull_request.rs
index 65c4a4308..d0b742de0 100644
--- a/lib/components/fabro-workflow/src/pipeline/pull_request.rs
+++ b/lib/components/fabro-workflow/src/pipeline/pull_request.rs
@@ -1048,13 +1048,10 @@ mod tests {
             settings:         serde_json::to_value(&run_spec.settings).unwrap(),
             graph:            serde_json::to_value(&run_spec.graph).unwrap(),
             workflow_source:  Some("digraph test { plan -> code }".to_string()),
-            workflow_config:  None,
             labels:           run_spec.labels.clone().into_iter().collect(),
-            run_dir:          "/tmp/project".to_string(),
             source_directory: run_spec.source_directory.clone(),
             workflow_slug:    run_spec.workflow_slug.clone(),
             automation:       None,
-            db_prefix:        None,
             provenance:       run_spec.provenance.clone(),
             manifest_blob:    None,
             git:              run_spec.git.clone(),
@@ -1119,13 +1116,10 @@ mod tests {
             settings:         serde_json::to_value(&run_spec.settings).unwrap(),
             graph:            serde_json::to_value(&run_spec.graph).unwrap(),
             workflow_source:  Some("digraph test { plan -> code }".to_string()),
-            workflow_config:  None,
             labels:           run_spec.labels.clone().into_iter().collect(),
-            run_dir:          "/tmp/project".to_string(),
             source_directory: run_spec.source_directory.clone(),
             workflow_slug:    run_spec.workflow_slug.clone(),
             automation:       None,
-            db_prefix:        None,
             provenance:       run_spec.provenance.clone(),
             manifest_blob:    None,
             git:              run_spec.git.clone(),
@@ -1539,13 +1533,10 @@ mod tests {
             settings:         serde_json::to_value(&run_spec.settings).unwrap(),
             graph:            serde_json::to_value(&run_spec.graph).unwrap(),
             workflow_source:  Some("digraph test { plan -> code }".to_string()),
-            workflow_config:  None,
             labels:           run_spec.labels.clone().into_iter().collect(),
-            run_dir:          "/tmp/project".to_string(),
             source_directory: run_spec.source_directory.clone(),
             workflow_slug:    run_spec.workflow_slug.clone(),
             automation:       None,
-            db_prefix:        None,
             provenance:       test_support::test_run_provenance(),
             manifest_blob:    None,
             git:              None,
@@ -1733,13 +1724,10 @@ mod tests {
             settings:         serde_json::to_value(&run_spec.settings).unwrap(),
             graph:            serde_json::to_value(&run_spec.graph).unwrap(),
             workflow_source:  None,
-            workflow_config:  None,
             labels:           run_spec.labels.clone().into_iter().collect(),
-            run_dir:          "/tmp/x".to_string(),
             source_directory: None,
             workflow_slug:    None,
             automation:       None,
-            db_prefix:        None,
             provenance:       test_support::test_run_provenance(),
             manifest_blob:    None,
             git:              None,
diff --git a/lib/components/fabro-workflow/src/run_lookup.rs b/lib/components/fabro-workflow/src/run_lookup.rs
index 167b234cb..7a43f2c37 100644
--- a/lib/components/fabro-workflow/src/run_lookup.rs
+++ b/lib/components/fabro-workflow/src/run_lookup.rs
@@ -507,13 +507,10 @@ mod tests {
             settings:         serde_json::to_value(&run_spec.settings).unwrap(),
             graph:            serde_json::to_value(&run_spec.graph).unwrap(),
             workflow_source:  None,
-            workflow_config:  None,
             labels:           run_spec.labels.clone().into_iter().collect(),
-            run_dir:          run_dir.display().to_string(),
             source_directory: run_spec.source_directory.clone(),
             workflow_slug:    run_spec.workflow_slug.clone(),
             automation:       None,
-            db_prefix:        None,
             provenance:       run_spec.provenance.clone(),
             manifest_blob:    None,
             git:              run_spec.git.clone(),
diff --git a/lib/components/fabro-workflow/src/runtime_store.rs b/lib/components/fabro-workflow/src/runtime_store.rs
index 761a8c4fd..c376c47e7 100644
--- a/lib/components/fabro-workflow/src/runtime_store.rs
+++ b/lib/components/fabro-workflow/src/runtime_store.rs
@@ -163,13 +163,10 @@ mod tests {
             settings:         serde_json::to_value(&record.settings).unwrap(),
             graph:            serde_json::to_value(&record.graph).unwrap(),
             workflow_source:  Some("digraph test {}".to_string()),
-            workflow_config:  None,
             labels:           std::collections::BTreeMap::new(),
-            run_dir:          "/tmp/test".to_string(),
             source_directory: Some("/tmp/test".to_string()),
             workflow_slug:    Some("test".to_string()),
             automation:       None,
-            db_prefix:        None,
             provenance:       test_support::test_run_provenance(),
             manifest_blob:    None,
             git:              None,
diff --git a/lib/components/fabro-workflow/src/test_support.rs b/lib/components/fabro-workflow/src/test_support.rs
index 06037ddd4..19390762d 100644
--- a/lib/components/fabro-workflow/src/test_support.rs
+++ b/lib/components/fabro-workflow/src/test_support.rs
@@ -188,17 +188,14 @@ async fn initialized(
             .expect("failed to serialize settings"),
         graph:            serde_json::to_value(graph).expect("failed to serialize graph"),
         workflow_source:  None,
-        workflow_config:  None,
         labels:           run_options
             .labels
             .clone()
             .into_iter()
             .collect::<BTreeMap<_, _>>(),
-        run_dir:          run_options.run_dir.display().to_string(),
         source_directory: Some(sandbox.working_directory().to_string()),
         workflow_slug:    run_options.workflow_slug.clone(),
         automation:       None,
-        db_prefix:        None,
         provenance:       fabro_types::RunProvenance {
             server:  None,
             client:  None,
diff --git a/lib/foundation/fabro-api/tests/run_event_round_trip.rs b/lib/foundation/fabro-api/tests/run_event_round_trip.rs
index 4f4ea5e99..25ad8706a 100644
--- a/lib/foundation/fabro-api/tests/run_event_round_trip.rs
+++ b/lib/foundation/fabro-api/tests/run_event_round_trip.rs
@@ -19,7 +19,6 @@ fn run_event_round_trips_run_created() {
         "properties": {
             "settings": WorkflowSettings::default(),
             "graph": Graph::new("test"),
-            "run_dir": "/tmp/fabro/run-1",
             "source_directory": "/tmp/fabro/run-1",
             "provenance": test_support::test_run_provenance()
         }
@@ -38,7 +37,6 @@ fn run_event_round_trips_run_created_with_web_url() {
         "properties": {
             "settings": WorkflowSettings::default(),
             "graph": Graph::new("test"),
-            "run_dir": "/tmp/fabro/run-1",
             "source_directory": "/tmp/fabro/run-1",
             "web_url": format!("http://localhost:3000/runs/{}", fixtures::RUN_1),
             "provenance": test_support::test_run_provenance()
diff --git a/lib/foundation/fabro-types/src/run_event/mod.rs b/lib/foundation/fabro-types/src/run_event/mod.rs
index 59892030f..1366c8df6 100644
--- a/lib/foundation/fabro-types/src/run_event/mod.rs
+++ b/lib/foundation/fabro-types/src/run_event/mod.rs
@@ -1007,7 +1007,6 @@ mod tests {
                 "settings": settings,
                 "graph": graph,
                 "labels": {},
-                "run_dir": "/tmp/run",
                 "source_directory": "/tmp/run",
                 "provenance": test_support::test_run_provenance()
             }
@@ -1055,7 +1054,6 @@ mod tests {
                 "settings": WorkflowSettings::default(),
                 "graph": Graph::new("test"),
                 "labels": {},
-                "run_dir": "/tmp/run",
                 "source_directory": "/tmp/run",
                 "provenance": test_support::test_run_provenance(),
                 "manifest_blob": RunBlobId::new(br#"{"version":1}"#).to_string()