diff --git a/packages/engine/src/__tests__/reliability-interactions/branch-group-automerge-precedence.test.ts b/packages/engine/src/__tests__/reliability-interactions/branch-group-automerge-precedence.slow.test.ts
similarity index 100%
rename from packages/engine/src/__tests__/reliability-interactions/branch-group-automerge-precedence.test.ts
rename to packages/engine/src/__tests__/reliability-interactions/branch-group-automerge-precedence.slow.test.ts
diff --git a/packages/engine/src/__tests__/reliability-interactions/branch-group-merge-routing.test.ts b/packages/engine/src/__tests__/reliability-interactions/branch-group-merge-routing.slow.test.ts
similarity index 100%
rename from packages/engine/src/__tests__/reliability-interactions/branch-group-merge-routing.test.ts
rename to packages/engine/src/__tests__/reliability-interactions/branch-group-merge-routing.slow.test.ts
diff --git a/packages/engine/src/__tests__/reliability-interactions/branch-group-pr-sync.test.ts b/packages/engine/src/__tests__/reliability-interactions/branch-group-pr-sync.slow.test.ts
similarity index 100%
rename from packages/engine/src/__tests__/reliability-interactions/branch-group-pr-sync.test.ts
rename to packages/engine/src/__tests__/reliability-interactions/branch-group-pr-sync.slow.test.ts
diff --git a/packages/engine/src/__tests__/reliability-interactions/branch-group-promotion-gate.test.ts b/packages/engine/src/__tests__/reliability-interactions/branch-group-promotion-gate.slow.test.ts
similarity index 100%
rename from packages/engine/src/__tests__/reliability-interactions/branch-group-promotion-gate.test.ts
rename to packages/engine/src/__tests__/reliability-interactions/branch-group-promotion-gate.slow.test.ts
diff --git a/packages/engine/src/__tests__/reliability-interactions/branch-group-single-pr-e2e.test.ts b/packages/engine/src/__tests__/reliability-interactions/branch-group-single-pr-e2e.slow.test.ts
similarity index 100%
rename from packages/engine/src/__tests__/reliability-interactions/branch-group-single-pr-e2e.test.ts
rename to packages/engine/src/__tests__/reliability-interactions/branch-group-single-pr-e2e.slow.test.ts