diff --git a/src-tauri/src/analysis_rerank.rs b/src-tauri/src/analysis_rerank.rs
index 9ef41c111..3f54c1572 100644
--- a/src-tauri/src/analysis_rerank.rs
+++ b/src-tauri/src/analysis_rerank.rs
@@ -862,171 +862,5 @@ pub(crate) fn rerank_pass_is_uniform(judgments: &[crate::llm::RelevanceJudgment]
 }
 
 #[cfg(test)]
-mod rerank_breaker_tests {
-    use super::{
-        budget_allowance_by_now, rerank_pass_is_uniform, secs_into_utc_day, RerankOutcome,
-        RerankSkip,
-    };
-    use crate::llm::RelevanceJudgment;
-
-    fn j(confidence: f32) -> RelevanceJudgment {
-        RelevanceJudgment {
-            item_id: "x".to_string(),
-            relevant: confidence >= 0.6,
-            confidence,
-            raw_confidence: None,
-            reasoning: String::new(),
-            key_connections: vec![],
-        }
-    }
-
-    #[test]
-    fn uniform_full_pass_trips_the_breaker() {
-        // The incident signature: 48 judgments, every confidence 1.0.
-        let judgments: Vec<_> = (0..48).map(|_| j(1.0)).collect();
-        assert!(rerank_pass_is_uniform(&judgments));
-    }
-
-    #[test]
-    fn discriminating_pass_does_not_trip() {
-        let mut judgments: Vec<_> = (0..47).map(|_| j(0.2)).collect();
-        judgments.push(j(0.8));
-        assert!(!rerank_pass_is_uniform(&judgments));
-    }
-
-    #[test]
-    fn small_pass_is_exempt() {
-        let judgments: Vec<_> = (0..7).map(|_| j(1.0)).collect();
-        assert!(
-            !rerank_pass_is_uniform(&judgments),
-            "fewer than 8 judgments cannot prove non-discrimination"
-        );
-    }
-
-    // ── Budget pacing ────────────────────────────────────────────────────
-    // Reproduces the live 2026-08-14 failure: a 100k/day budget consumed by
-    // 01:36Z, leaving the reranker dead for 22.4 of every 24 hours.
-
-    const DAY: u64 = 86_400;
-
-    #[test]
-    fn pacing_releases_headroom_at_the_utc_rollover() {
-        // At 00:00Z some budget must be available or the first pass of the day
-        // could never run.
-        let allowed = budget_allowance_by_now(100_000, 0);
-        assert_eq!(allowed, 5_000, "expected the 5% up-front headroom");
-        assert!(allowed > 0);
-    }
-
-    #[test]
-    fn pacing_would_have_blocked_the_live_burn() {
-        // Live numbers: 102,677 tokens spent by 01:36:30Z against a 100k limit.
-        let secs_at_0136z = 1 * 3600 + 36 * 60 + 30;
-        let allowed = budget_allowance_by_now(100_000, secs_at_0136z);
-
-        assert!(
-            allowed < 102_677,
-            "pacing must forbid the observed burn: allowed {allowed} at 01:36Z"
-        );
-        // One pass (~11.4k) fits inside the headroom; the run-away does not.
-        assert!(
-            allowed >= 11_400,
-            "a single pass must still fit early in the day, got {allowed}"
-        );
-    }
-
-    #[test]
-    fn pacing_grows_monotonically_across_the_day() {
-        let mut previous = 0;
-        for hour in 0..=24 {
-            let allowed = budget_allowance_by_now(100_000, hour * 3600);
-            assert!(
-                allowed >= previous,
-                "allowance must never shrink: hour {hour} gave {allowed} after {previous}"
-            );
-            previous = allowed;
-        }
-    }
-
-    #[test]
-    fn pacing_reaches_the_full_budget_by_end_of_day() {
-        assert_eq!(budget_allowance_by_now(100_000, DAY), 100_000);
-        // And is clamped, never exceeding the limit even past the boundary.
-        assert_eq!(budget_allowance_by_now(100_000, DAY * 2), 100_000);
-    }
-
-    #[test]
-    fn pacing_treats_zero_limit_as_unlimited() {
-        // 0 means "no limit" everywhere else in this module; pacing must agree,
-        // otherwise setting no limit would paradoxically disable reranking.
-        assert_eq!(budget_allowance_by_now(0, 0), u64::MAX);
-        assert_eq!(budget_allowance_by_now(0, DAY), u64::MAX);
-    }
-
-    #[test]
-    fn secs_into_utc_day_is_within_bounds() {
-        assert!(secs_into_utc_day() < DAY);
-    }
-
-    // ── Skip reporting ───────────────────────────────────────────────────
-
-    #[test]
-    fn every_skip_reason_is_tagged_and_explained() {
-        let skips = [
-            RerankSkip::Disabled,
-            RerankSkip::BudgetExhausted {
-                tokens_today: 102_677,
-                token_limit: 100_000,
-                cost_today_cents: 51,
-                cost_limit_cents: 50,
-            },
-            RerankSkip::BudgetPaced {
-                tokens_today: 50_000,
-                allowed_by_now: 12_000,
-            },
-            RerankSkip::NoContext,
-            RerankSkip::NoDatabase,
-            RerankSkip::NoCandidates,
-            RerankSkip::UnsupportedTier("basic".to_string()),
-            RerankSkip::NoJudgments,
-            RerankSkip::NonDiscriminating,
-        ];
-
-        let mut tags = std::collections::HashSet::new();
-        for skip in &skips {
-            assert!(!skip.reason().is_empty(), "{skip:?} has no tag");
-            assert!(!skip.detail().is_empty(), "{skip:?} has no detail");
-            assert!(
-                tags.insert(skip.reason()),
-                "{skip:?} reuses tag '{}' — skips must be distinguishable in logs",
-                skip.reason()
-            );
-        }
-    }
-
-    #[test]
-    fn budget_exhausted_detail_carries_the_actual_numbers() {
-        let detail = RerankSkip::BudgetExhausted {
-            tokens_today: 102_677,
-            token_limit: 100_000,
-            cost_today_cents: 51,
-            cost_limit_cents: 50,
-        }
-        .detail();
-
-        // The operator must be able to read the cause straight out of the log
-        // rather than going to look up usage.json.
-        assert!(detail.contains("102677"), "missing spend: {detail}");
-        assert!(detail.contains("100000"), "missing limit: {detail}");
-        assert!(detail.contains("51"), "missing cost: {detail}");
-        assert!(detail.contains("UTC"), "missing reset window: {detail}");
-    }
-
-    #[test]
-    fn a_skipped_outcome_is_never_a_reranked_one() {
-        let skipped = RerankOutcome::Skipped(RerankSkip::Disabled);
-        let done = RerankOutcome::Reranked { judged: 48 };
-        assert_ne!(skipped, done);
-        assert!(matches!(done, RerankOutcome::Reranked { judged } if judged == 48));
-    }
-}
+#[path = "analysis_rerank_tests.rs"]
+mod rerank_breaker_tests;
diff --git a/src-tauri/src/analysis_rerank_tests.rs b/src-tauri/src/analysis_rerank_tests.rs
new file mode 100644
index 000000000..4859b43fc
--- /dev/null
+++ b/src-tauri/src/analysis_rerank_tests.rs
@@ -0,0 +1,168 @@
+// SPDX-License-Identifier: FSL-1.1-Apache-2.0
+//! Circuit-breaker, budget-pacing and skip-reporting tests for `analysis_rerank`.
+
+use super::{
+    budget_allowance_by_now, rerank_pass_is_uniform, secs_into_utc_day, RerankOutcome, RerankSkip,
+};
+use crate::llm::RelevanceJudgment;
+
+fn j(confidence: f32) -> RelevanceJudgment {
+    RelevanceJudgment {
+        item_id: "x".to_string(),
+        relevant: confidence >= 0.6,
+        confidence,
+        raw_confidence: None,
+        reasoning: String::new(),
+        key_connections: vec![],
+    }
+}
+
+#[test]
+fn uniform_full_pass_trips_the_breaker() {
+    // The incident signature: 48 judgments, every confidence 1.0.
+    let judgments: Vec<_> = (0..48).map(|_| j(1.0)).collect();
+    assert!(rerank_pass_is_uniform(&judgments));
+}
+
+#[test]
+fn discriminating_pass_does_not_trip() {
+    let mut judgments: Vec<_> = (0..47).map(|_| j(0.2)).collect();
+    judgments.push(j(0.8));
+    assert!(!rerank_pass_is_uniform(&judgments));
+}
+
+#[test]
+fn small_pass_is_exempt() {
+    let judgments: Vec<_> = (0..7).map(|_| j(1.0)).collect();
+    assert!(
+        !rerank_pass_is_uniform(&judgments),
+        "fewer than 8 judgments cannot prove non-discrimination"
+    );
+}
+
+// ── Budget pacing ────────────────────────────────────────────────────
+// Reproduces the live 2026-08-14 failure: a 100k/day budget consumed by
+// 01:36Z, leaving the reranker dead for 22.4 of every 24 hours.
+
+const DAY: u64 = 86_400;
+
+#[test]
+fn pacing_releases_headroom_at_the_utc_rollover() {
+    // At 00:00Z some budget must be available or the first pass of the day
+    // could never run.
+    let allowed = budget_allowance_by_now(100_000, 0);
+    assert_eq!(allowed, 5_000, "expected the 5% up-front headroom");
+    assert!(allowed > 0);
+}
+
+#[test]
+fn pacing_would_have_blocked_the_live_burn() {
+    // Live numbers: 102,677 tokens spent by 01:36:30Z against a 100k limit.
+    let secs_at_0136z = 1 * 3600 + 36 * 60 + 30;
+    let allowed = budget_allowance_by_now(100_000, secs_at_0136z);
+
+    assert!(
+        allowed < 102_677,
+        "pacing must forbid the observed burn: allowed {allowed} at 01:36Z"
+    );
+    // One pass (~11.4k) fits inside the headroom; the run-away does not.
+    assert!(
+        allowed >= 11_400,
+        "a single pass must still fit early in the day, got {allowed}"
+    );
+}
+
+#[test]
+fn pacing_grows_monotonically_across_the_day() {
+    let mut previous = 0;
+    for hour in 0..=24 {
+        let allowed = budget_allowance_by_now(100_000, hour * 3600);
+        assert!(
+            allowed >= previous,
+            "allowance must never shrink: hour {hour} gave {allowed} after {previous}"
+        );
+        previous = allowed;
+    }
+}
+
+#[test]
+fn pacing_reaches_the_full_budget_by_end_of_day() {
+    assert_eq!(budget_allowance_by_now(100_000, DAY), 100_000);
+    // And is clamped, never exceeding the limit even past the boundary.
+    assert_eq!(budget_allowance_by_now(100_000, DAY * 2), 100_000);
+}
+
+#[test]
+fn pacing_treats_zero_limit_as_unlimited() {
+    // 0 means "no limit" everywhere else in this module; pacing must agree,
+    // otherwise setting no limit would paradoxically disable reranking.
+    assert_eq!(budget_allowance_by_now(0, 0), u64::MAX);
+    assert_eq!(budget_allowance_by_now(0, DAY), u64::MAX);
+}
+
+#[test]
+fn secs_into_utc_day_is_within_bounds() {
+    assert!(secs_into_utc_day() < DAY);
+}
+
+// ── Skip reporting ───────────────────────────────────────────────────
+
+#[test]
+fn every_skip_reason_is_tagged_and_explained() {
+    let skips = [
+        RerankSkip::Disabled,
+        RerankSkip::BudgetExhausted {
+            tokens_today: 102_677,
+            token_limit: 100_000,
+            cost_today_cents: 51,
+            cost_limit_cents: 50,
+        },
+        RerankSkip::BudgetPaced {
+            tokens_today: 50_000,
+            allowed_by_now: 12_000,
+        },
+        RerankSkip::NoContext,
+        RerankSkip::NoDatabase,
+        RerankSkip::NoCandidates,
+        RerankSkip::UnsupportedTier("basic".to_string()),
+        RerankSkip::NoJudgments,
+        RerankSkip::NonDiscriminating,
+    ];
+
+    let mut tags = std::collections::HashSet::new();
+    for skip in &skips {
+        assert!(!skip.reason().is_empty(), "{skip:?} has no tag");
+        assert!(!skip.detail().is_empty(), "{skip:?} has no detail");
+        assert!(
+            tags.insert(skip.reason()),
+            "{skip:?} reuses tag '{}' — skips must be distinguishable in logs",
+            skip.reason()
+        );
+    }
+}
+
+#[test]
+fn budget_exhausted_detail_carries_the_actual_numbers() {
+    let detail = RerankSkip::BudgetExhausted {
+        tokens_today: 102_677,
+        token_limit: 100_000,
+        cost_today_cents: 51,
+        cost_limit_cents: 50,
+    }
+    .detail();
+
+    // The operator must be able to read the cause straight out of the log
+    // rather than going to look up usage.json.
+    assert!(detail.contains("102677"), "missing spend: {detail}");
+    assert!(detail.contains("100000"), "missing limit: {detail}");
+    assert!(detail.contains("51"), "missing cost: {detail}");
+    assert!(detail.contains("UTC"), "missing reset window: {detail}");
+}
+
+#[test]
+fn a_skipped_outcome_is_never_a_reranked_one() {
+    let skipped = RerankOutcome::Skipped(RerankSkip::Disabled);
+    let done = RerankOutcome::Reranked { judged: 48 };
+    assert_ne!(skipped, done);
+    assert!(matches!(done, RerankOutcome::Reranked { judged } if judged == 48));
+}