Understand the failure.
Verify the repair.
Small, reproducible software failures. The broken implementation, the fix that didn’t work, and the one that passed—preserved together.
Explore the cases ↓How results are verified ↗WHAT THE ARCHIVE CONTAINS
100840 executable cases. 20168 are open.
Every case records the implementation that fails, the fix that did not work, and the repair that passed its checks—with recorded outputs and source hashes. This release adds 100840 cases across 20168 failure mechanisms and 254 domains.
The open tier gives you the failure and the unsuccessful fix for one case in every mechanism. The remaining 80672 cases, 5 variants per mechanism, are member-only: the verified repair, its recorded checks, and the full fixture suite are held in the member archive. Read the methodology ↗
A RECORD OF WHAT WENT WRONG
Browse the archive / 100840
External text autofill in autocomplete: ambiguous autofill label silently selects its first identity · case 01
The ambiguous completion transition produces an incorrect observable state.
External text autofill in autocomplete: ambiguous autofill label silently selects its first identity · case 02
The ambiguous completion transition produces an incorrect observable state.
External text autofill in autocomplete: ambiguous autofill label silently selects its first identity · case 03
The ambiguous completion transition produces an incorrect observable state.
External text autofill in autocomplete: ambiguous autofill label silently selects its first identity · case 04
The ambiguous completion transition produces an incorrect observable state.
External text autofill in autocomplete: ambiguous autofill label silently selects its first identity · case 05
The ambiguous completion transition produces an incorrect observable state.
External text autofill in autocomplete: fuzzy autocomplete match becomes a committed autofill value · case 01
The exact completion transition produces an incorrect observable state.
External text autofill in autocomplete: fuzzy autocomplete match becomes a committed autofill value · case 02
The exact completion transition produces an incorrect observable state.
External text autofill in autocomplete: fuzzy autocomplete match becomes a committed autofill value · case 03
The exact completion transition produces an incorrect observable state.
External text autofill in autocomplete: fuzzy autocomplete match becomes a committed autofill value · case 04
The exact completion transition produces an incorrect observable state.
External text autofill in autocomplete: fuzzy autocomplete match becomes a committed autofill value · case 05
The exact completion transition produces an incorrect observable state.
External text autofill in autocomplete: unresolved external text retains the unrelated previous identity · case 01
The unresolved completion transition produces an incorrect observable state.
External text autofill in autocomplete: unresolved external text retains the unrelated previous identity · case 02
The unresolved completion transition produces an incorrect observable state.
External text autofill in autocomplete: unresolved external text retains the unrelated previous identity · case 03
The unresolved completion transition produces an incorrect observable state.
External text autofill in autocomplete: unresolved external text retains the unrelated previous identity · case 04
The unresolved completion transition produces an incorrect observable state.
External text autofill in autocomplete: unresolved external text retains the unrelated previous identity · case 05
The unresolved completion transition produces an incorrect observable state.
External text autofill in autocomplete: external autofill preserves a ghost suffix from previous typing · case 01
The ghost completion transition produces an incorrect observable state.
External text autofill in autocomplete: external autofill preserves a ghost suffix from previous typing · case 02
The ghost completion transition produces an incorrect observable state.
External text autofill in autocomplete: external autofill preserves a ghost suffix from previous typing · case 03
The ghost completion transition produces an incorrect observable state.
External text autofill in autocomplete: external autofill preserves a ghost suffix from previous typing · case 04
The ghost completion transition produces an incorrect observable state.
External text autofill in autocomplete: external autofill preserves a ghost suffix from previous typing · case 05
The ghost completion transition produces an incorrect observable state.
External text autofill in autocomplete: external exact match is displayed with the old query instead of autofilled label · case 01
The exact-display completion transition produces an incorrect observable state.
External text autofill in autocomplete: external exact match is displayed with the old query instead of autofilled label · case 02
The exact-display completion transition produces an incorrect observable state.
External text autofill in autocomplete: external exact match is displayed with the old query instead of autofilled label · case 03
The exact-display completion transition produces an incorrect observable state.
External text autofill in autocomplete: external exact match is displayed with the old query instead of autofilled label · case 04
The exact-display completion transition produces an incorrect observable state.
External text autofill in autocomplete: external exact match is displayed with the old query instead of autofilled label · case 05
The exact-display completion transition produces an incorrect observable state.
External text autofill in autocomplete: external replacement does not schedule suggestions for new text · case 01
The query-trigger completion transition produces an incorrect observable state.
External text autofill in autocomplete: external replacement does not schedule suggestions for new text · case 02
The query-trigger completion transition produces an incorrect observable state.
External text autofill in autocomplete: external replacement does not schedule suggestions for new text · case 03
The query-trigger completion transition produces an incorrect observable state.
External text autofill in autocomplete: external replacement does not schedule suggestions for new text · case 04
The query-trigger completion transition produces an incorrect observable state.
External text autofill in autocomplete: external replacement does not schedule suggestions for new text · case 05
The query-trigger completion transition produces an incorrect observable state.
External text autofill in autocomplete: external autofill resets the existing interaction history · case 01
The touched completion transition produces an incorrect observable state.
External text autofill in autocomplete: external autofill resets the existing interaction history · case 02
The touched completion transition produces an incorrect observable state.
External text autofill in autocomplete: external autofill resets the existing interaction history · case 03
The touched completion transition produces an incorrect observable state.
External text autofill in autocomplete: external autofill resets the existing interaction history · case 04
The touched completion transition produces an incorrect observable state.
External text autofill in autocomplete: external autofill resets the existing interaction history · case 05
The touched completion transition produces an incorrect observable state.
External text autofill in autocomplete: external text reconciliation falsely treats prior hover as an exact-match witness · case 01
The hover-witness completion transition produces an incorrect observable state.
External text autofill in autocomplete: external text reconciliation falsely treats prior hover as an exact-match witness · case 02
The hover-witness completion transition produces an incorrect observable state.
External text autofill in autocomplete: external text reconciliation falsely treats prior hover as an exact-match witness · case 03
The hover-witness completion transition produces an incorrect observable state.
External text autofill in autocomplete: external text reconciliation falsely treats prior hover as an exact-match witness · case 04
The hover-witness completion transition produces an incorrect observable state.
External text autofill in autocomplete: external text reconciliation falsely treats prior hover as an exact-match witness · case 05
The hover-witness completion transition produces an incorrect observable state.
Mention suggestion insertion: mention acceptance replaces the whole input instead of the trigger span · case 01
The text completion transition produces an incorrect observable state.
Mention suggestion insertion: mention acceptance replaces the whole input instead of the trigger span · case 02
The text completion transition produces an incorrect observable state.
Mention suggestion insertion: mention acceptance replaces the whole input instead of the trigger span · case 03
The text completion transition produces an incorrect observable state.
Mention suggestion insertion: mention acceptance replaces the whole input instead of the trigger span · case 04
The text completion transition produces an incorrect observable state.
Mention suggestion insertion: mention acceptance replaces the whole input instead of the trigger span · case 05
The text completion transition produces an incorrect observable state.
Mention suggestion insertion: mention metadata stores visible name instead of entity identifier · case 01
The identity completion transition produces an incorrect observable state.
Mention suggestion insertion: mention metadata stores visible name instead of entity identifier · case 02
The identity completion transition produces an incorrect observable state.
Mention suggestion insertion: mention metadata stores visible name instead of entity identifier · case 03
The identity completion transition produces an incorrect observable state.
Mention suggestion insertion: mention metadata stores visible name instead of entity identifier · case 04
The identity completion transition produces an incorrect observable state.
Mention suggestion insertion: mention metadata stores visible name instead of entity identifier · case 05
The identity completion transition produces an incorrect observable state.
Mention suggestion insertion: mention display doubles the trigger prefix · case 01
The trigger completion transition produces an incorrect observable state.
Mention suggestion insertion: mention display doubles the trigger prefix · case 02
The trigger completion transition produces an incorrect observable state.
Mention suggestion insertion: mention display doubles the trigger prefix · case 03
The trigger completion transition produces an incorrect observable state.
Mention suggestion insertion: mention display doubles the trigger prefix · case 04
The trigger completion transition produces an incorrect observable state.
Mention suggestion insertion: mention display doubles the trigger prefix · case 05
The trigger completion transition produces an incorrect observable state.
Mention suggestion insertion: mention request includes its trigger in the search fragment · case 01
The query completion transition produces an incorrect observable state.
Mention suggestion insertion: mention request includes its trigger in the search fragment · case 02
The query completion transition produces an incorrect observable state.
Mention suggestion insertion: mention request includes its trigger in the search fragment · case 03
The query completion transition produces an incorrect observable state.
Mention suggestion insertion: mention request includes its trigger in the search fragment · case 04
The query completion transition produces an incorrect observable state.
Mention suggestion insertion: mention request includes its trigger in the search fragment · case 05
The query completion transition produces an incorrect observable state.
Mention suggestion insertion: mention insertion duplicates an existing separator · case 01
The delimiter completion transition produces an incorrect observable state.
Mention suggestion insertion: mention insertion duplicates an existing separator · case 02
The delimiter completion transition produces an incorrect observable state.
Mention suggestion insertion: mention insertion duplicates an existing separator · case 03
The delimiter completion transition produces an incorrect observable state.
Mention suggestion insertion: mention insertion duplicates an existing separator · case 04
The delimiter completion transition produces an incorrect observable state.
Mention suggestion insertion: mention insertion duplicates an existing separator · case 05
The delimiter completion transition produces an incorrect observable state.
Mention suggestion insertion: mention caret omits the trigger width · case 01
The caret completion transition produces an incorrect observable state.
Mention suggestion insertion: mention caret omits the trigger width · case 02
The caret completion transition produces an incorrect observable state.
Mention suggestion insertion: mention caret omits the trigger width · case 03
The caret completion transition produces an incorrect observable state.
Mention suggestion insertion: mention caret omits the trigger width · case 04
The caret completion transition produces an incorrect observable state.
Mention suggestion insertion: mention caret omits the trigger width · case 05
The caret completion transition produces an incorrect observable state.
Mention suggestion insertion: saved mention annotation includes following prose · case 01
The span completion transition produces an incorrect observable state.
Mention suggestion insertion: saved mention annotation includes following prose · case 02
The span completion transition produces an incorrect observable state.
Mention suggestion insertion: saved mention annotation includes following prose · case 03
The span completion transition produces an incorrect observable state.
Mention suggestion insertion: saved mention annotation includes following prose · case 04
The span completion transition produces an incorrect observable state.
Mention suggestion insertion: saved mention annotation includes following prose · case 05
The span completion transition produces an incorrect observable state.
Mention suggestion insertion: mention response can target a superseded trigger span · case 01
The stale completion transition produces an incorrect observable state.
Mention suggestion insertion: mention response can target a superseded trigger span · case 02
The stale completion transition produces an incorrect observable state.
Mention suggestion insertion: mention response can target a superseded trigger span · case 03
The stale completion transition produces an incorrect observable state.
Mention suggestion insertion: mention response can target a superseded trigger span · case 04
The stale completion transition produces an incorrect observable state.
Mention suggestion insertion: mention response can target a superseded trigger span · case 05
The stale completion transition produces an incorrect observable state.
Mention suggestion insertion: mention replacement removes prose following the trigger query · case 01
The tail completion transition produces an incorrect observable state.
Mention suggestion insertion: mention replacement removes prose following the trigger query · case 02
The tail completion transition produces an incorrect observable state.
Mention suggestion insertion: mention replacement removes prose following the trigger query · case 03
The tail completion transition produces an incorrect observable state.
Mention suggestion insertion: mention replacement removes prose following the trigger query · case 04
The tail completion transition produces an incorrect observable state.
Mention suggestion insertion: mention replacement removes prose following the trigger query · case 05
The tail completion transition produces an incorrect observable state.
Mention suggestion insertion: mention lookup is accidentally sent to another trigger provider · case 01
The descriptor completion transition produces an incorrect observable state.
Mention suggestion insertion: mention lookup is accidentally sent to another trigger provider · case 02
The descriptor completion transition produces an incorrect observable state.
Mention suggestion insertion: mention lookup is accidentally sent to another trigger provider · case 03
The descriptor completion transition produces an incorrect observable state.
Mention suggestion insertion: mention lookup is accidentally sent to another trigger provider · case 04
The descriptor completion transition produces an incorrect observable state.
Mention suggestion insertion: mention lookup is accidentally sent to another trigger provider · case 05
The descriptor completion transition produces an incorrect observable state.
Hierarchical path autocomplete: path request uses the entire typed path as the child scope · case 01
The lookup-parent completion transition produces an incorrect observable state.
Hierarchical path autocomplete: path request uses the entire typed path as the child scope · case 02
The lookup-parent completion transition produces an incorrect observable state.
Hierarchical path autocomplete: path request uses the entire typed path as the child scope · case 03
The lookup-parent completion transition produces an incorrect observable state.
Hierarchical path autocomplete: path request uses the entire typed path as the child scope · case 04
The lookup-parent completion transition produces an incorrect observable state.
Hierarchical path autocomplete: path request uses the entire typed path as the child scope · case 05
The lookup-parent completion transition produces an incorrect observable state.
Hierarchical path autocomplete: path suggestion matching includes all ancestor segments · case 01
The lookup-query completion transition produces an incorrect observable state.
Hierarchical path autocomplete: path suggestion matching includes all ancestor segments · case 02
The lookup-query completion transition produces an incorrect observable state.
Hierarchical path autocomplete: path suggestion matching includes all ancestor segments · case 03
The lookup-query completion transition produces an incorrect observable state.
Hierarchical path autocomplete: path suggestion matching includes all ancestor segments · case 04
The lookup-query completion transition produces an incorrect observable state.
Hierarchical path autocomplete: path suggestion matching includes all ancestor segments · case 05
The lookup-query completion transition produces an incorrect observable state.
INSPECTABLE BY DESIGN
Every result has a runnable source.
Runnable implementations with recorded outputs, source hashes, and explicit contracts. Related variants share a failure mechanism and belong together in evaluation splits.
Read the methodology ↗