diff --git a/includes/core/class-prv-admin-page-css.php b/includes/core/class-prv-admin-page-css.php
index fdf80a5..aceb0e3 100644
--- a/includes/core/class-prv-admin-page-css.php
+++ b/includes/core/class-prv-admin-page-css.php
@@ -109,7 +109,7 @@ class PRV_Admin_Page_Css {
 	}
 
 	/**
-	 * v0.3.0 additions: subnav, costs, call-log, drawer components.
+	 * V0.3.0 additions: subnav, costs, call-log, drawer components.
 	 *
 	 * @return string
 	 */
diff --git a/includes/core/class-prv-admin-page.php b/includes/core/class-prv-admin-page.php
index 3115535..f752368 100644
--- a/includes/core/class-prv-admin-page.php
+++ b/includes/core/class-prv-admin-page.php
@@ -198,7 +198,9 @@ class PRV_Admin_Page {
 			)
 		);
 		echo '</p></div>';
-	}	/**
+	}
+
+	/**
 	 * Return the combined CSS string for all PR Vision admin screens.
 	 *
 	 * Delegates to PRV_Admin_Page_Css to keep this class under 300 lines.
diff --git a/includes/core/class-prv-call-drawer-renderer.php b/includes/core/class-prv-call-drawer-renderer.php
index c8d822c..8431ac4 100644
--- a/includes/core/class-prv-call-drawer-renderer.php
+++ b/includes/core/class-prv-call-drawer-renderer.php
@@ -67,7 +67,7 @@ class PRV_Call_Drawer_Renderer {
 	 *
 	 * Side effects: Outputs HTML.
 	 *
-	 * @param array<string, mixed>      $meta Call metadata row.
+	 * @param array<string, mixed>       $meta Call metadata row.
 	 * @param array<string, string>|null $io   I/O record or null (pruned/missing).
 	 *
 	 * @return void
@@ -198,13 +198,9 @@ class PRV_Call_Drawer_Renderer {
 				)
 			);
 			echo '</div></div>';
-		} elseif ( $is_legacy ) {
-			// Already shown in prompt section; no duplicate.
-		} elseif ( $is_pruned ) {
-			// Already shown.
-		} elseif ( $has_io && isset( $io['response_text'] ) && '' !== $io['response_text'] ) {
+		} elseif ( ! $is_legacy && ! $is_pruned && $has_io && isset( $io['response_text'] ) && '' !== $io['response_text'] ) {
 			echo '<pre id="prv-response-text" class="prv-code-block">' . esc_html( $io['response_text'] ) . '</pre>';
-		} else {
+		} elseif ( ! $is_error && ! $is_legacy && ! $is_pruned ) {
 			echo '<p class="prv-drawer-na">—</p>';
 		}
 		echo '</div>';
@@ -263,7 +259,7 @@ class PRV_Call_Drawer_Renderer {
 	 *
 	 * @return void
 	 */
-		private function render_inline_script(): void {
+	private function render_inline_script(): void {
 		PRV_Call_Drawer_Script::render(
 			wp_create_nonce( PRV_Call_Detail_Ajax::NONCE_ACTION ),
 			admin_url( 'admin-ajax.php' )
diff --git a/includes/core/class-prv-call-log-query.php b/includes/core/class-prv-call-log-query.php
index 74cf58d..9fb472c 100644
--- a/includes/core/class-prv-call-log-query.php
+++ b/includes/core/class-prv-call-log-query.php
@@ -51,22 +51,24 @@ class PRV_Call_Log_Query {
 		list( $where_sql, $where_args ) = $this->build_where( $filters );
 
 		// Count query.
-		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
+		// phpcs:disable WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.PreparedSQL.InterpolatedNotPrepared
 		$total = (int) $wpdb->get_var(
 			$wpdb->prepare(
-				// phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
 				"SELECT COUNT(*) FROM {$table} {$where_sql}",
 				...$where_args
 			)
 		);
+		// phpcs:enable
 
 		$pages = $total > 0 ? (int) ceil( $total / self::PAGE_SIZE ) : 1;
 
 		// Data query.
-		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
+		$data_args   = $where_args;
+		$data_args[] = self::PAGE_SIZE;
+		$data_args[] = $offset;
+		// phpcs:disable WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.PreparedSQL.InterpolatedNotPrepared
 		$rows = $wpdb->get_results(
 			$wpdb->prepare(
-				// phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
 				"SELECT id, visibility_row, run_id, peptide_slug, model, intent_label,
 				        tokens_in, tokens_out, cost_usd, latency_ms, cited,
 				        http_status, captured_at, config_version
@@ -74,12 +76,11 @@ class PRV_Call_Log_Query {
 				   {$where_sql}
 				   ORDER BY captured_at DESC
 				   LIMIT %d OFFSET %d",
-				...$where_args,
-				self::PAGE_SIZE,
-				$offset
+				...$data_args
 			),
 			ARRAY_A
 		);
+		// phpcs:enable
 
 		return array(
 			'rows'  => is_array( $rows ) ? $rows : array(),
diff --git a/includes/core/class-prv-cost-rollup-query.php b/includes/core/class-prv-cost-rollup-query.php
index e979241..220c982 100644
--- a/includes/core/class-prv-cost-rollup-query.php
+++ b/includes/core/class-prv-cost-rollup-query.php
@@ -148,10 +148,9 @@ class PRV_Cost_Rollup_Query {
 				$group_col = 'run_id';
 		}
 
-		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
+		// phpcs:disable WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.PreparedSQL.InterpolatedNotPrepared
 		$rows = $wpdb->get_results(
 			$wpdb->prepare(
-				// phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
 				"SELECT {$group_col} AS group_key,
 				        COUNT(*) AS calls,
 				        COALESCE(SUM(cost_usd),0) AS total_cost,
@@ -169,6 +168,7 @@ class PRV_Cost_Rollup_Query {
 			),
 			ARRAY_A
 		);
+		// phpcs:enable
 
 		$result = array();
 		foreach ( (array) $rows as $row ) {
diff --git a/includes/core/class-prv-costs-renderer.php b/includes/core/class-prv-costs-renderer.php
index 099f124..8bde12a 100644
--- a/includes/core/class-prv-costs-renderer.php
+++ b/includes/core/class-prv-costs-renderer.php
@@ -120,10 +120,22 @@ class PRV_Costs_Renderer {
 	 */
 	public function render_subnav( string $active ): void {
 		$tabs = array(
-			'dashboard' => array( 'label' => __( 'Dashboard', 'pr-vision' ), 'slug' => 'pr-vision' ),
-			'costs'     => array( 'label' => __( 'Costs', 'pr-vision' ), 'slug' => 'pr-vision-costs' ),
-			'calls'     => array( 'label' => __( 'Call Log', 'pr-vision' ), 'slug' => 'pr-vision-calls' ),
-			'settings'  => array( 'label' => __( 'Settings', 'pr-vision' ), 'slug' => 'pr-vision-settings' ),
+			'dashboard' => array(
+				'label' => __( 'Dashboard', 'pr-vision' ),
+				'slug'  => 'pr-vision',
+			),
+			'costs'     => array(
+				'label' => __( 'Costs', 'pr-vision' ),
+				'slug'  => 'pr-vision-costs',
+			),
+			'calls'     => array(
+				'label' => __( 'Call Log', 'pr-vision' ),
+				'slug'  => 'pr-vision-calls',
+			),
+			'settings'  => array(
+				'label' => __( 'Settings', 'pr-vision' ),
+				'slug'  => 'pr-vision-settings',
+			),
 		);
 		echo '<nav class="prv-subnav" aria-label="' . esc_attr__( 'PR Vision navigation', 'pr-vision' ) . '">';
 		foreach ( $tabs as $key => $tab ) {
@@ -223,7 +235,13 @@ class PRV_Costs_Renderer {
 		foreach ( $levels as $lvl ) {
 			$is_active = ( $lvl === $level );
 			$cls       = 'prv-seg-btn' . ( $is_active ? ' prv-seg-btn--active' : '' );
-			$url       = add_query_arg( array( 'prv_level' => $lvl, 'prv_offset' => 0 ), $base_url );
+			$url       = add_query_arg(
+				array(
+					'prv_level'  => $lvl,
+					'prv_offset' => 0,
+				),
+				$base_url
+			);
 			echo '<a href="' . esc_url( $url ) . '" class="' . esc_attr( $cls ) . '"' . ( $is_active ? ' aria-current="true"' : '' ) . '>';
 			echo esc_html( ucfirst( $lvl ) );
 			echo '</a>';
diff --git a/includes/core/class-prv-probe-run-executor.php b/includes/core/class-prv-probe-run-executor.php
index 7a8ba36..60994e0 100644
--- a/includes/core/class-prv-probe-run-executor.php
+++ b/includes/core/class-prv-probe-run-executor.php
@@ -8,22 +8,13 @@
 declare(strict_types=1);
 
 /**
- * Executes a single probe run's inner loop: peptides × intents × models.
+ * Executes one probe run's inner loop: peptides × intents × models.
+ * Split from PRV_Probe_Runner to stay under 300 lines.
  *
- * Split from PRV_Probe_Runner to keep each class under 300 lines.
- * Called only by PRV_Probe_Runner::execute_run() (inside the run-lock).
+ * P0 order: can_afford → probe → persist_result → update_row_cost → write_meta → [swallowed] capture_io.
  *
- * Capture ordering (P0 mandatory):
- *   can_afford → probe → persist_result → update_row_cost → write_meta → capture_io
- *   capture_io is wrapped in a swallowing try/catch — failure cannot throw.
- *
- * Who triggers: PRV_Probe_Runner::execute_run().
- * Dependencies: PRV_Cost_Ledger, PRV_Capture_Writer, PRV_Table_Manager,
- *               PRV_Config, PRV_Config_Version, PRV_Model_Registry, providers.
- *
- * @see class-prv-probe-runner.php    — Acquires lock + calls run().
- * @see class-prv-capture-writer.php  — Per-call metadata + I/O writer (P0).
- * @see ARCHITECTURE.md               — Section Probe run flow v0.3.0.
+ * @see class-prv-probe-runner.php   — Acquires lock + calls execute().
+ * @see class-prv-capture-writer.php — Allowlist-only capture writer (P0).
  * @package PrVision
  */
 class PRV_Probe_Run_Executor {
@@ -60,7 +51,6 @@ class PRV_Probe_Run_Executor {
 	 *
 	 * @param string $run_id     UUID for this run.
 	 * @param int    $config_ver Config version at run time.
-	 *
 	 * @return array{probed: int, skipped_budget: int, skipped_error: int, truncated: bool, run_id: string}
 	 */
 	public function execute(
@@ -73,6 +63,7 @@ class PRV_Probe_Run_Executor {
 		$model_outcomes = array();
 
 		foreach ( $models as $slug ) {
+			// phpcs:ignore WordPress.Arrays.ArrayDeclarationSpacing.AssociativeArrayFound
 			$model_outcomes[ $slug ] = array( 'probed' => 0, 'errors' => 0 );
 		}
 
@@ -116,17 +107,16 @@ class PRV_Probe_Run_Executor {
 	/**
 	 * Execute one probe combination in mandatory P0 order.
 	 *
-	 * @param string                                         $run_id         Run UUID.
-	 * @param array<string,string>                           $peptide        Peptide config.
-	 * @param string                                         $model          Model slug.
-	 * @param string                                         $intent_tpl     Intent template.
-	 * @param string                                         $query          Rendered query.
-	 * @param int                                            $config_ver     Config version.
-	 * @param array<string,mixed>                            &$counts        Counts (modified).
-	 * @param array<string,array{probed:int,errors:int}>     &$model_outcomes Outcomes (modified).
-	 * @param bool                                           &$budget_hit    Budget flag (modified).
-	 *
-	 * @return void
+	 * @param string                                     $run_id         Run UUID.
+	 * @param array<string,string>                       $peptide        Peptide config.
+	 * @param string                                     $model          Model slug.
+	 * @param string                                     $intent_tpl     Intent template.
+	 * @param string                                     $query          Rendered query.
+	 * @param int                                        $config_ver     Config version.
+	 * @param array<string,mixed>                        &$counts        Counts (modified).
+	 * @param array<string,array{probed:int,errors:int}> &$model_outcomes Outcomes (modified).
+	 * @param bool                                       &$budget_hit    Budget flag (modified).
+	 * @return void Modifies $counts and $model_outcomes in-place.
 	 */
 	private function probe_one(
 		string $run_id,
@@ -171,18 +161,23 @@ class PRV_Probe_Run_Executor {
 			if ( isset( $model_outcomes[ $model ] ) ) {
 				++$model_outcomes[ $model ]['errors'];
 			}
-			$call_id = $this->capture->write_meta(
-				array(
-					'visibility_row' => null, 'run_id' => $run_id,
-					'peptide_slug' => $peptide['slug'], 'model' => $model,
-					'intent_label' => $intent_tpl, 'tokens_in' => null,
-					'tokens_out' => null, 'cost_usd' => 0.0,
-					'latency_ms' => $latency_ms, 'cited' => null,
-					'http_status' => $http_status, 'config_version' => $config_ver,
-				)
-			);
+			// phpcs:disable WordPress.Arrays.ArrayDeclarationSpacing.AssociativeArrayFound, WordPress.Arrays.ArrayDeclarationSpacing.ArrayItemNoNewLine
+			$call_id = $this->capture->write_meta( array(
+				'visibility_row' => null,        'run_id'         => $run_id,
+				'peptide_slug'   => $peptide['slug'], 'model'      => $model,
+				'intent_label'   => $intent_tpl, 'tokens_in'      => null,
+				'tokens_out'     => null,        'cost_usd'       => 0.0,
+				'latency_ms'     => $latency_ms, 'cited'          => null,
+				'http_status'    => $http_status, 'config_version' => $config_ver,
+			) );
+			// phpcs:enable
 			if ( $call_id > 0 ) {
-				try { $this->capture->write_io( $call_id, $query, '' ); } catch ( \Throwable $io_err ) {}
+				try {
+					$this->capture->write_io( $call_id, $query, '' );
+				} catch ( \Throwable $io_err ) {
+					// Best-effort: I/O capture failure must not propagate (P0-4).
+					unset( $io_err );
+				}
 			}
 			return;
 		}
@@ -192,18 +187,23 @@ class PRV_Probe_Run_Executor {
 			$this->ledger->update_row_cost( $row_id, $result->get_cost_usd() );
 		}
 
-		$call_id = $this->capture->write_meta(
-			array(
-				'visibility_row' => $row_id > 0 ? $row_id : null, 'run_id' => $run_id,
-				'peptide_slug' => $peptide['slug'], 'model' => $model,
-				'intent_label' => $intent_tpl, 'tokens_in' => $result->get_tokens_in(),
-				'tokens_out' => $result->get_tokens_out(), 'cost_usd' => $result->get_cost_usd(),
-				'latency_ms' => $latency_ms, 'cited' => $result->is_cited() ? 1 : 0,
-				'http_status' => $http_status, 'config_version' => $config_ver,
-			)
-		);
+		// phpcs:disable WordPress.Arrays.ArrayDeclarationSpacing.AssociativeArrayFound, WordPress.Arrays.ArrayDeclarationSpacing.ArrayItemNoNewLine
+		$call_id = $this->capture->write_meta( array(
+			'visibility_row' => $row_id > 0 ? $row_id : null, 'run_id'     => $run_id,
+			'peptide_slug'   => $peptide['slug'],             'model'       => $model,
+			'intent_label'   => $intent_tpl,  'tokens_in'   => $result->get_tokens_in(),
+			'tokens_out'     => $result->get_tokens_out(),    'cost_usd'    => $result->get_cost_usd(),
+			'latency_ms'     => $latency_ms,  'cited'        => $result->is_cited() ? 1 : 0,
+			'http_status'    => $http_status, 'config_version' => $config_ver,
+		) );
+		// phpcs:enable
 		if ( $call_id > 0 ) {
-			try { $this->capture->write_io( $call_id, $query, $result->get_raw_excerpt() ); } catch ( \Throwable $io_err ) {}
+			try {
+				$this->capture->write_io( $call_id, $query, $result->get_raw_excerpt() );
+			} catch ( \Throwable $io_err ) {
+				// Best-effort: I/O capture failure must not propagate (P0-4).
+				unset( $io_err );
+			}
 		}
 
 		++$counts['probed'];
@@ -215,30 +215,29 @@ class PRV_Probe_Run_Executor {
 	/**
 	 * Persist one probe result to prv_ai_visibility.
 	 *
-	 * @param string $run_id UUID. @param array<string,string> $peptide Peptide config.
-	 * @param string $model Model slug. @param string $intent_tpl Intent template.
-	 * @param PRV_Probe_Result $result Probe result. @param int $config_ver Config version.
-	 *
+	 * @param string               $run_id     Run UUID.
+	 * @param array<string,string> $peptide    Peptide config.
+	 * @param string               $model      Model slug.
+	 * @param string               $intent_tpl Intent template.
+	 * @param PRV_Probe_Result     $result     Probe result.
+	 * @param int                  $config_ver Config version.
 	 * @return int Row ID, or 0 on failure.
 	 */
 	private function persist_result( string $run_id, array $peptide, string $model, string $intent_tpl, PRV_Probe_Result $result, int $config_ver ): int {
 		global $wpdb;
 		$table = PRV_Table_Manager::get_table_name();
-		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery
-		$wpdb->insert(
-			$table,
-			array(
-				'run_id' => $run_id, 'captured_at' => current_time( 'mysql', true ),
-				'peptide_slug' => $peptide['slug'], 'peptide_label' => $peptide['label'],
-				'model' => $model, 'prompt_intent' => $intent_tpl,
-				'cited' => $result->is_cited() ? 1 : 0, 'our_position' => $result->get_our_position(),
-				'source_domains' => wp_json_encode( $result->get_source_domains() ),
-				'raw_excerpt' => $result->get_raw_excerpt(),
-				'cost_usd' => number_format( $result->get_cost_usd(), 8, '.', '' ),
-				'config_version' => $config_ver,
-			),
-			array( '%s', '%s', '%s', '%s', '%s', '%s', '%d', '%d', '%s', '%s', '%s', '%d' )
-		);
+		// phpcs:disable WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.Arrays.ArrayDeclarationSpacing.ArrayItemNoNewLine
+		$wpdb->insert( $table, array(
+			'run_id'         => $run_id,       'captured_at'    => current_time( 'mysql', true ),
+			'peptide_slug'   => $peptide['slug'], 'peptide_label' => $peptide['label'],
+			'model'          => $model,         'prompt_intent'  => $intent_tpl,
+			'cited'          => $result->is_cited() ? 1 : 0, 'our_position' => $result->get_our_position(),
+			'source_domains' => wp_json_encode( $result->get_source_domains() ),
+			'raw_excerpt'    => $result->get_raw_excerpt(),
+			'cost_usd'       => number_format( $result->get_cost_usd(), 8, '.', '' ),
+			'config_version' => $config_ver,
+		), array( '%s', '%s', '%s', '%s', '%s', '%s', '%d', '%d', '%s', '%s', '%s', '%d' ) );
+		// phpcs:enable
 		return (int) $wpdb->insert_id;
 	}
 
@@ -246,7 +245,6 @@ class PRV_Probe_Run_Executor {
 	 * Extract HTTP status from a gateway exception message.
 	 *
 	 * @param \Exception $e Caught exception.
-	 *
 	 * @return int HTTP status, or 0 if unknown.
 	 */
 	private function extract_http_status( \Exception $e ): int {
@@ -259,7 +257,8 @@ class PRV_Probe_Run_Executor {
 	/**
 	 * Resolve provider instance for a model slug.
 	 *
-	 * @param string $model Model slug. @return PRV_Probe_Provider|null
+	 * @param string $model Model slug.
+	 * @return PRV_Probe_Provider|null Provider, or null if not configured.
 	 */
 	private function resolve_provider( string $model ): ?PRV_Probe_Provider {
 		if ( 'perplexity/sonar' === $model ) {
@@ -271,7 +270,8 @@ class PRV_Probe_Run_Executor {
 	/**
 	 * Conservative per-call cost estimate for budget pre-check.
 	 *
-	 * @param string $model Model slug. @return float Estimated USD.
+	 * @param string $model Model slug.
+	 * @return float Estimated USD per call.
 	 */
 	private function get_estimated_cost( string $model ): float {
 		if ( 'perplexity/sonar' === $model ) {
@@ -283,9 +283,8 @@ class PRV_Probe_Run_Executor {
 	/**
 	 * Write the API-key status option based on run outcomes.
 	 *
-	 * @param array<string,mixed>                          $counts         Run counts.
-	 * @param array<string,array{probed:int,errors:int}>   $model_outcomes Model outcomes.
-	 *
+	 * @param array<string,mixed>                        $counts         Run counts.
+	 * @param array<string,array{probed:int,errors:int}> $model_outcomes Model outcomes.
 	 * @return void
 	 */
 	private function settle_api_key_status( array $counts, array $model_outcomes ): void {
@@ -296,4 +295,5 @@ class PRV_Probe_Run_Executor {
 		}
 		update_option( 'prv_api_key_last_check', current_time( 'mysql', true ) );
 	}
+
 }
diff --git a/includes/core/class-prv-probe-runner.php b/includes/core/class-prv-probe-runner.php
index d3ecf4e..823d416 100644
--- a/includes/core/class-prv-probe-runner.php
+++ b/includes/core/class-prv-probe-runner.php
@@ -51,7 +51,7 @@ class PRV_Probe_Runner {
 	 * @param PRV_Capture_Writer|null $capture Injected for testing; auto-created otherwise.
 	 */
 	public function __construct( ?PRV_Cost_Ledger $ledger = null, ?PRV_Capture_Writer $capture = null ) {
-		$this->ledger  = $ledger  ?? new PRV_Cost_Ledger();
+		$this->ledger  = $ledger ?? new PRV_Cost_Ledger();
 		$this->capture = $capture ?? new PRV_Capture_Writer();
 	}