diff --git a/tools/wta/src/agent_pane_origin.rs b/tools/wta/src/agent_pane_origin.rs
index 58de8422b..b099cdc92 100644
--- a/tools/wta/src/agent_pane_origin.rs
+++ b/tools/wta/src/agent_pane_origin.rs
@@ -96,7 +96,6 @@ pub fn append_default(session_id: &str, pane_session_id: Option<&str>) {
         tracing::warn!(
             target: "agent_pane_origin",
             session_id = %session_id,
-            path = %path.display(),
             error = %err,
             "failed to append origin record",
         );
diff --git a/tools/wta/src/app.rs b/tools/wta/src/app.rs
index 8ba57796c..d1ca195fa 100644
--- a/tools/wta/src/app.rs
+++ b/tools/wta/src/app.rs
@@ -3131,7 +3131,6 @@ impl App {
             tracing::warn!(
                 target: "agents_view",
                 key = %key,
-                cwd = %raw_cwd_string,
                 "dispatch_resume: stored cwd is no longer a valid directory; falling back to profile default",
             );
         }
@@ -3149,8 +3148,6 @@ impl App {
             argv.push("-d".to_string());
             argv.push(cwd.clone());
         }
-        let cwd_string = valid_cwd.clone().unwrap_or_default();
-
         // Optimistic state flip: bump Historical/Ended -> Idle so a rapid
         // second Enter on the same row sees a non-terminal status and
         // skips this branch (idempotent: ResumeDispatched no-ops on live
@@ -3186,7 +3183,6 @@ impl App {
             cli = %cli_id,
             commandline = %commandline,
             launch_commandline = %launch_commandline,
-            cwd = %cwd_string,
             "dispatch_resume: new-tab scheduled",
         );
 
@@ -3331,7 +3327,6 @@ impl App {
             tracing::warn!(
                 target: "agents_view",
                 key = %key,
-                cwd = %raw_cwd_string,
                 "dispatch_resume_in_agent_pane: stored cwd is no longer a valid directory; omitting from resume_in_new_agent_tab event",
             );
         }
@@ -3359,7 +3354,6 @@ impl App {
         tracing::info!(
             target: "agents_view",
             key = %s.key,
-            cwd = %cwd_string,
             "dispatch_resume_in_agent_pane: resume_in_new_agent_tab event published",
         );
 
@@ -5423,7 +5417,6 @@ impl App {
                         target: "acp_load_session",
                         tab_id,
                         session_id,
-                        cwd = ?cwd,
                         "inbound load_session event from WT"
                     );
                     if tab_id.is_empty() || session_id.is_empty() {
diff --git a/tools/wta/src/coordinator.rs b/tools/wta/src/coordinator.rs
index e20b4ca6a..f68d86329 100644
--- a/tools/wta/src/coordinator.rs
+++ b/tools/wta/src/coordinator.rs
@@ -424,11 +424,10 @@ async fn execute_choice(
                     .unwrap_or(DelegatePromptDelivery::LaunchThenSend);
                 let target_label = open_target_label(target);
                 coordinator_log(&format!(
-                    "open_and_send begin target={} parent={:?} agent={:?} cwd={:?} title={:?} direction={:?} delivery_mode={} input_chars={}",
+                    "open_and_send begin target={} parent={:?} agent={:?} title={:?} direction={:?} delivery_mode={} input_chars={}",
                     target_label,
                     parent,
                     agent,
-                    cwd,
                     title,
                     direction,
                     delegate_prompt_delivery_label(delivery_mode),
@@ -511,8 +510,8 @@ async fn execute_choice(
             } => {
                 let target_label = open_target_label(target);
                 coordinator_log(&format!(
-                    "open begin target={} parent={:?} cwd={:?} title={:?} direction={:?}",
-                    target_label, parent, cwd, title, direction
+                    "open begin target={} parent={:?} title={:?} direction={:?}",
+                    target_label, parent, title, direction
                 ));
                 let _ = event_tx.send(AppEvent::ExecutionInfo(format!(
                     "Opening {}.",
diff --git a/tools/wta/src/main.rs b/tools/wta/src/main.rs
index 11920b67c..84b45865c 100644
--- a/tools/wta/src/main.rs
+++ b/tools/wta/src/main.rs
@@ -1617,7 +1617,7 @@ async fn run_delegate(
     cwd: Option<&str>,
 ) -> Result<()> {
     // Log the prompt length, not the text — the prompt is user content.
-    tracing::info!(prompt_chars = prompt.map(|p| p.chars().count()), agent = agent_cmd, cwd, "run_delegate started");
+    tracing::info!(prompt_chars = prompt.map(|p| p.chars().count()), agent = agent_cmd, "run_delegate started");
     tracing::trace!(target: "delegate.content", prompt = ?prompt, "run_delegate prompt");
 
     let (debug_tx, _) = tokio::sync::mpsc::unbounded_channel::<app::DebugMessage>();
@@ -1718,8 +1718,8 @@ async fn delegate_with_context(
 
     // The commandline bakes in the user prompt (`-i "<prompt>"`); keep it out
     // of the debug log and only emit it at trace.
-    tracing::debug!(cwd, "delegate_with_context: launching");
-    tracing::trace!(target: "delegate.content", commandline, cwd, "delegate_with_context commandline");
+    tracing::debug!("delegate_with_context: launching");
+    tracing::trace!(target: "delegate.content", commandline, "delegate_with_context commandline");
 
     shell_mgr
         .wt_create_tab(Some(&commandline), cwd, None)
@@ -2567,7 +2567,6 @@ async fn run_acp_app(
                                     if v.is_none() {
                                         tracing::warn!(
                                             target: "acp_load_session",
-                                            cwd = %s,
                                             "--initial-load-cwd refers to a missing directory; dropping from load_session params",
                                         );
                                     }
@@ -2577,7 +2576,6 @@ async fn run_acp_app(
                                 target: "acp_load_session",
                                 session_id = sid,
                                 tab_id = %tab_id,
-                                cwd = ?cwd,
                                 "queueing boot-time initial load_session via AppEvent::WtEvent"
                             );
                             let mut params = serde_json::Map::new();
diff --git a/tools/wta/src/master/mod.rs b/tools/wta/src/master/mod.rs
index 5b1606b5b..4743b87c1 100644
--- a/tools/wta/src/master/mod.rs
+++ b/tools/wta/src/master/mod.rs
@@ -46,6 +46,7 @@ use std::sync::{Arc, OnceLock, Weak};
 /// helper sharing this master.
 const NOTIF_CHANNEL_CAPACITY: usize = 1024;
 const SESSION_NEW_TIMEOUT_SECS: u64 = 120;
+const MASTER_PIPE_DISCOVERY_FILE: &str = "master-pipe.txt";
 
 use acp::Agent as _;
 use acp::Client as _;
@@ -493,7 +494,6 @@ impl acp::Client for MasterClient {
             op = "write_text_file",
             helper_id = ?helper_id,
             session_id = ?sid,
-            path = ?args.path,
             "forwarding fs/write_text_file to helper"
         );
         forwarder.write_text_file(args).await
@@ -511,7 +511,6 @@ impl acp::Client for MasterClient {
             op = "read_text_file",
             helper_id = ?helper_id,
             session_id = ?sid,
-            path = ?args.path,
             "forwarding fs/read_text_file to helper"
         );
         forwarder.read_text_file(args).await
@@ -532,14 +531,6 @@ impl acp::Client for MasterClient {
             args_len = args.args.len(),
             "forwarding terminal/create to helper"
         );
-        // Command line can carry user/file content — trace only.
-        tracing::trace!(
-            target: "master.content",
-            session_id = ?sid,
-            command = %args.command,
-            args = ?args.args,
-            "create_terminal command"
-        );
         forwarder.create_terminal(args).await
     }
 
@@ -800,7 +791,6 @@ impl acp::Agent for HelperHandler {
             step = "helper→agent",
             op = "new_session",
             helper_id = ?self.helper_id,
-            cwd = ?args.cwd,
             mcp_servers = args.mcp_servers.len(),
             pane_session_id = ?wta_meta.pane_session_id,
             "forwarding new_session"
@@ -1312,7 +1302,8 @@ impl MasterPipeDiscoveryGuard {
                 if let Err(err) = std::fs::create_dir_all(parent) {
                     tracing::warn!(
                         target: "master",
-                        path = %path.display(),
+                        discovery_file = MASTER_PIPE_DISCOVERY_FILE,
+                        pipe_name = %pipe_name,
                         error = %err,
                         "failed to create master pipe discovery directory"
                     );
@@ -1325,14 +1316,15 @@ impl MasterPipeDiscoveryGuard {
             match std::fs::write(path, pipe_name) {
                 Ok(()) => tracing::info!(
                     target: "master",
-                    path = %path.display(),
+                    discovery_file = MASTER_PIPE_DISCOVERY_FILE,
                     pipe_name = %pipe_name,
                     "master pipe discovery file written"
                 ),
                 Err(err) => {
                     tracing::warn!(
                         target: "master",
-                        path = %path.display(),
+                        discovery_file = MASTER_PIPE_DISCOVERY_FILE,
+                        pipe_name = %pipe_name,
                         error = %err,
                         "failed to write master pipe discovery file"
                     );
@@ -1362,7 +1354,8 @@ impl Drop for MasterPipeDiscoveryGuard {
             if let Err(err) = std::fs::remove_file(path) {
                 tracing::warn!(
                     target: "master",
-                    path = %path.display(),
+                    discovery_file = MASTER_PIPE_DISCOVERY_FILE,
+                    pipe_name = %self.pipe_name,
                     error = %err,
                     "failed to remove master pipe discovery file"
                 );
@@ -2312,7 +2305,7 @@ where
         tracing::info!(
             target: "session_hook",
             session_id = %sid.0,
-            new_title = %disk_title,
+            title_len = disk_title.chars().count(),
             "upgraded synthetic title from on-disk session artefacts",
         );
     }
diff --git a/tools/wta/src/protocol/acp/client.rs b/tools/wta/src/protocol/acp/client.rs
index 15e17a5d2..02c0e360f 100644
--- a/tools/wta/src/protocol/acp/client.rs
+++ b/tools/wta/src/protocol/acp/client.rs
@@ -929,13 +929,12 @@ fn truncate_for_prompt(text: &str, max_chars: usize) -> String {
 fn format_pane_context_summary(pane_context: Option<&PaneContext>) -> String {
     match pane_context {
         Some(context) => format!(
-            "pane_id={:?} tab_id={:?} window_id={:?} source_pane_id={:?} effective_source_pane_id={:?} cwd={:?}",
+            "pane_id={:?} tab_id={:?} window_id={:?} source_pane_id={:?} effective_source_pane_id={:?}",
             context.pane_id,
             context.tab_id,
             context.window_id,
             context.source_pane_id,
             context.effective_source_pane_id(),
-            context.cwd
         ),
         None => "none".to_string(),
     }
@@ -3331,7 +3330,6 @@ async fn run_inner(
     let cwd = active_pane_cwd
         .clone()
         .unwrap_or_else(|| std::env::current_dir().unwrap_or_default());
-    startup_probe.log(&format!("Using session cwd={}", cwd.display()));
     let session_future = conn.new_session(acp::NewSessionRequest::new(cwd));
     let session = tokio::time::timeout(std::time::Duration::from_secs(15), session_future)
         .await