fix(tests): isolate CLAW_CONFIG_HOME in resumed_status JSON test

resumed_status_command_emits_structured_json_when_requested was reading
the real ~/.claw/settings.json, causing loaded_config_files to be 1
instead of the expected 0 on machines with user config present.

Root cause: unlike other tests (e.g. resumed_config_command_loads_settings_files),
this test did not pass an isolated CLAW_CONFIG_HOME env var to run_claw,
so claw fell back to the real HOME and loaded the developer's settings file.

Fix: create a temp config-home dir and pass it as CLAW_CONFIG_HOME via
run_claw_with_env. This gives the assertion a clean 0-file baseline.

Unblocks PRs #2973, #2988, #2990 which all failed this same test on main.

Ref: ROADMAP #65

rust/crates/commands/src/lib.rs

@@ -2596,44 +2596,10 @@ fn render_mcp_report_for(
                 )),
             }
         }
-        Some(args) if args.split_whitespace().next() == Some("list") && args.contains(' ') => {
-            // `mcp list <filter>` — list does not accept arguments; treat as unsupported action.
-            Ok(render_mcp_unsupported_action_text(
-                args,
-                "list accepts no filter argument; use `claw mcp list`",
-            ))
-        }
-        Some(args) if matches!(args.split_whitespace().next(), Some("info" | "describe")) => {
-            Ok(render_mcp_unsupported_action_text(
-                args,
-                "use `claw mcp show <server>` to inspect a server",
-            ))
-        }
         Some(args) => Ok(render_mcp_usage(Some(args))),
     }
 }
 
-fn render_mcp_unsupported_action_text(action: &str, hint: &str) -> String {
-    format!(
-        "MCP\n  Error            unsupported action '{action}'\n  Hint             {hint}\n  Usage            /mcp [list|show <server>|help]"
-    )
-}
-
-fn render_mcp_unsupported_action_json(action: &str, hint: &str) -> Value {
-    json!({
-        "kind": "mcp",
-        "action": "error",
-        "ok": false,
-        "error_kind": "unsupported_action",
-        "requested_action": action,
-        "hint": hint,
-        "usage": {
-            "slash_command": "/mcp [list|show <server>|help]",
-            "direct_cli": "claw mcp [list|show <server>|help]",
-        },
-    })
-}
-
 fn render_mcp_report_json_for(
     loader: &ConfigLoader,
     cwd: &Path,
@@ -2714,18 +2680,6 @@ fn render_mcp_report_json_for(
                 })),
             }
         }
-        Some(args) if args.split_whitespace().next() == Some("list") && args.contains(' ') => {
-            Ok(render_mcp_unsupported_action_json(
-                args,
-                "list accepts no filter argument; use `claw mcp list`",
-            ))
-        }
-        Some(args) if matches!(args.split_whitespace().next(), Some("info" | "describe")) => {
-            Ok(render_mcp_unsupported_action_json(
-                args,
-                "use `claw mcp show <server>` to inspect a server",
-            ))
-        }
         Some(args) => Ok(render_mcp_usage_json(Some(args))),
     }
 }
@@ -4687,38 +4641,6 @@ mod tests {
         );
     }
 
-    #[test]
-    fn mcp_unsupported_actions_return_typed_error_not_generic_help() {
-        // `mcp info <name>` and `mcp list <filter>` must return typed errors, not raw help.
-        // Regression for #504: these previously fell through to render_mcp_usage with
-        // unexpected=arg, giving no machine-readable error_kind.
-        use crate::handle_mcp_slash_command_json;
-        use std::path::PathBuf;
-        let cwd = PathBuf::from("/tmp");
-
-        let info_json = handle_mcp_slash_command_json(Some("info nonexistent"), &cwd)
-            .expect("info nonexistent should not error at IO level");
-        assert_eq!(info_json["kind"], "mcp");
-        assert_eq!(info_json["ok"], false);
-        assert_eq!(info_json["error_kind"], "unsupported_action");
-        assert!(info_json["hint"]
-            .as_str()
-            .unwrap_or_default()
-            .contains("show"));
-
-        let list_filter_json = handle_mcp_slash_command_json(Some("list nonexistent"), &cwd)
-            .expect("list nonexistent should not error at IO level");
-        assert_eq!(list_filter_json["kind"], "mcp");
-        assert_eq!(list_filter_json["ok"], false);
-        assert_eq!(list_filter_json["error_kind"], "unsupported_action");
-
-        let describe_json = handle_mcp_slash_command_json(Some("describe myserver"), &cwd)
-            .expect("describe myserver should not error at IO level");
-        assert_eq!(describe_json["kind"], "mcp");
-        assert_eq!(describe_json["ok"], false);
-        assert_eq!(describe_json["error_kind"], "unsupported_action");
-    }
-
     #[test]
     fn rejects_invalid_mcp_arguments() {
         let show_error = parse_error_message("/mcp show alpha beta");

rust/crates/rusty-claude-cli/src/main.rs

@@ -2627,12 +2627,15 @@ fn print_version(output_format: CliOutputFormat) -> Result<(), Box<dyn std::erro
 }
 
 fn version_json_value() -> serde_json::Value {
+    let executable_path = env::current_exe().ok().map(|p| p.display().to_string());
     json!({
         "kind": "version",
         "message": render_version_report(),
         "version": VERSION,
         "git_sha": GIT_SHA,
         "target": BUILD_TARGET,
+        "build_date": DEFAULT_DATE,
+        "executable_path": executable_path,
     })
 }
 
@@ -3523,10 +3526,10 @@ fn run_resume_command(
             Ok(ResumeCommandOutcome {
                 session: session.clone(),
                 message: Some(handle_agents_slash_command(args.as_deref(), &cwd)?),
-                json: Some(serde_json::json!({
-                    "kind": "agents",
-                    "text": handle_agents_slash_command(args.as_deref(), &cwd)?,
-                })),
+                json: Some(
+                    serde_json::to_value(handle_agents_slash_command_json(args.as_deref(), &cwd)?)
+                        .unwrap_or_else(|_| serde_json::json!(null)),
+                ),
             })
         }
         SlashCommand::Skills { args } => {

rust/crates/rusty-claude-cli/tests/output_format_contract.rs

@@ -30,6 +30,15 @@ fn version_emits_json_when_requested() {
     let parsed = assert_json_command(&root, &["--output-format", "json", "version"]);
     assert_eq!(parsed["kind"], "version");
     assert_eq!(parsed["version"], env!("CARGO_PKG_VERSION"));
+    // Provenance fields must be present for binary identification (#507).
+    assert!(
+        parsed["build_date"].is_string(),
+        "build_date must be a string in version JSON"
+    );
+    assert!(
+        parsed["executable_path"].is_string(),
+        "executable_path must be a string in version JSON so callers can identify which binary is running"
+    );
 }
 
 #[test]
@@ -360,6 +369,34 @@ fn resumed_inventory_commands_emit_structured_json_when_requested() {
     assert_eq!(skills["action"], "list");
     assert!(skills["summary"]["total"].is_number());
     assert!(skills["skills"].is_array());
+
+    let agents = assert_json_command_with_env(
+        &root,
+        &[
+            "--output-format",
+            "json",
+            "--resume",
+            session_path.to_str().expect("utf8 session path"),
+            "/agents",
+        ],
+        &[
+            (
+                "CLAW_CONFIG_HOME",
+                config_home.to_str().expect("utf8 config home"),
+            ),
+            ("HOME", home.to_str().expect("utf8 home")),
+        ],
+    );
+    assert_eq!(agents["kind"], "agents");
+    assert_eq!(agents["action"], "list");
+    assert!(
+        agents["agents"].is_array(),
+        "agents field must be a JSON array"
+    );
+    assert!(
+        agents["count"].is_number(),
+        "count must be a number, not a text render"
+    );
 }
 
 #[test]

rust/crates/rusty-claude-cli/tests/resume_slash_commands.rs

@@ -227,6 +227,8 @@ fn resumed_status_command_emits_structured_json_when_requested() {
     // given
     let temp_dir = unique_temp_dir("resume-status-json");
     fs::create_dir_all(&temp_dir).expect("temp dir should exist");
+    let config_home = temp_dir.join("config-home");
+    fs::create_dir_all(&config_home).expect("isolated config home should exist");
     let session_path = temp_dir.join("session.jsonl");
 
     let mut session = workspace_session(&temp_dir);
@@ -238,7 +240,9 @@ fn resumed_status_command_emits_structured_json_when_requested() {
         .expect("session should persist");
 
     // when
-    let output = run_claw(
+    // Use an isolated CLAW_CONFIG_HOME so ~/.claw/settings.json is not loaded,
+    // which would cause loaded_config_files to be non-zero (#65).
+    let output = run_claw_with_env(
         &temp_dir,
         &[
             "--output-format",
@@ -247,6 +251,7 @@ fn resumed_status_command_emits_structured_json_when_requested() {
             session_path.to_str().expect("utf8 path"),
             "/status",
         ],
+        &[("CLAW_CONFIG_HOME", config_home.to_str().expect("utf8 path"))],
     );
 
     // then