FAILURE MAP

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 ↗
100840Executable case variants
20168Distinct failure mechanisms
302520Executed implementations
20168Open-access cases

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

Python · Standard library
REFERENCEFAILURE MECHANISMDOMAINACCESS
FA-22401

Unavailable suggestion presentation: explicit unavailable suggestion acceptance submits its identifier · case 01

The commit completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22402

Unavailable suggestion presentation: explicit unavailable suggestion acceptance submits its identifier · case 02

The commit completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22403

Unavailable suggestion presentation: explicit unavailable suggestion acceptance submits its identifier · case 03

The commit completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22404

Unavailable suggestion presentation: explicit unavailable suggestion acceptance submits its identifier · case 04

The commit completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22405

Unavailable suggestion presentation: explicit unavailable suggestion acceptance submits its identifier · case 05

The commit completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22406

Unavailable suggestion presentation: unavailable option loses its explanation in the result row · case 01

The reason completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22407

Unavailable suggestion presentation: unavailable option loses its explanation in the result row · case 02

The reason completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22408

Unavailable suggestion presentation: unavailable option loses its explanation in the result row · case 03

The reason completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22409

Unavailable suggestion presentation: unavailable option loses its explanation in the result row · case 04

The reason completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22410

Unavailable suggestion presentation: unavailable option loses its explanation in the result row · case 05

The reason completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22411

Unavailable suggestion presentation: unavailable committed value is silently cleared · case 01

The selected completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22412

Unavailable suggestion presentation: unavailable committed value is silently cleared · case 02

The selected completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22413

Unavailable suggestion presentation: unavailable committed value is silently cleared · case 03

The selected completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22414

Unavailable suggestion presentation: unavailable committed value is silently cleared · case 04

The selected completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22415

Unavailable suggestion presentation: unavailable committed value is silently cleared · case 05

The selected completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22416

Unavailable suggestion presentation: equal labels propagate disabled state to a different identity · case 01

The row-flags completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22417

Unavailable suggestion presentation: equal labels propagate disabled state to a different identity · case 02

The row-flags completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22418

Unavailable suggestion presentation: equal labels propagate disabled state to a different identity · case 03

The row-flags completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22419

Unavailable suggestion presentation: equal labels propagate disabled state to a different identity · case 04

The row-flags completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22420

Unavailable suggestion presentation: equal labels propagate disabled state to a different identity · case 05

The row-flags completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22421

Unavailable suggestion presentation: default suggestion remains the disabled leading row · case 01

The first-enabled completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22422

Unavailable suggestion presentation: default suggestion remains the disabled leading row · case 02

The first-enabled completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22423

Unavailable suggestion presentation: default suggestion remains the disabled leading row · case 03

The first-enabled completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22424

Unavailable suggestion presentation: default suggestion remains the disabled leading row · case 04

The first-enabled completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22425

Unavailable suggestion presentation: default suggestion remains the disabled leading row · case 05

The first-enabled completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22426

Unavailable suggestion presentation: no selectable option is confused with no returned option · case 01

The status completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22427

Unavailable suggestion presentation: no selectable option is confused with no returned option · case 02

The status completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22428

Unavailable suggestion presentation: no selectable option is confused with no returned option · case 03

The status completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22429

Unavailable suggestion presentation: no selectable option is confused with no returned option · case 04

The status completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22430

Unavailable suggestion presentation: no selectable option is confused with no returned option · case 05

The status completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22431

Unavailable suggestion presentation: committed unavailable choice appears valid because its row exists · case 01

The validation completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22432

Unavailable suggestion presentation: committed unavailable choice appears valid because its row exists · case 02

The validation completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22433

Unavailable suggestion presentation: committed unavailable choice appears valid because its row exists · case 03

The validation completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22434

Unavailable suggestion presentation: committed unavailable choice appears valid because its row exists · case 04

The validation completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22435

Unavailable suggestion presentation: committed unavailable choice appears valid because its row exists · case 05

The validation completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22436

Unavailable suggestion presentation: availability refresh retains an invalid transient highlight · case 01

The revalidate completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22437

Unavailable suggestion presentation: availability refresh retains an invalid transient highlight · case 02

The revalidate completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22438

Unavailable suggestion presentation: availability refresh retains an invalid transient highlight · case 03

The revalidate completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22439

Unavailable suggestion presentation: availability refresh retains an invalid transient highlight · case 04

The revalidate completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22440

Unavailable suggestion presentation: availability refresh retains an invalid transient highlight · case 05

The revalidate completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22441

Autocomplete loading and empty states: refreshing populated suggestions is rendered as initial loading · case 01

The initial completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22442

Autocomplete loading and empty states: refreshing populated suggestions is rendered as initial loading · case 02

The initial completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22443

Autocomplete loading and empty states: refreshing populated suggestions is rendered as initial loading · case 03

The initial completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22444

Autocomplete loading and empty states: refreshing populated suggestions is rendered as initial loading · case 04

The initial completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22445

Autocomplete loading and empty states: refreshing populated suggestions is rendered as initial loading · case 05

The initial completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22446

Autocomplete loading and empty states: populated query refresh lacks its progress state · case 01

The refreshing completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22447

Autocomplete loading and empty states: populated query refresh lacks its progress state · case 02

The refreshing completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22448

Autocomplete loading and empty states: populated query refresh lacks its progress state · case 03

The refreshing completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22449

Autocomplete loading and empty states: populated query refresh lacks its progress state · case 04

The refreshing completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22450

Autocomplete loading and empty states: populated query refresh lacks its progress state · case 05

The refreshing completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22451

Autocomplete loading and empty states: no-results is suppressed for a settled empty query · case 01

The empty completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22452

Autocomplete loading and empty states: no-results is suppressed for a settled empty query · case 02

The empty completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22453

Autocomplete loading and empty states: no-results is suppressed for a settled empty query · case 03

The empty completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22454

Autocomplete loading and empty states: no-results is suppressed for a settled empty query · case 04

The empty completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22455

Autocomplete loading and empty states: no-results is suppressed for a settled empty query · case 05

The empty completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22456

Autocomplete loading and empty states: old-query failure overwrites current autocomplete status · case 01

The error completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22457

Autocomplete loading and empty states: old-query failure overwrites current autocomplete status · case 02

The error completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22458

Autocomplete loading and empty states: old-query failure overwrites current autocomplete status · case 03

The error completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22459

Autocomplete loading and empty states: old-query failure overwrites current autocomplete status · case 04

The error completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22460

Autocomplete loading and empty states: old-query failure overwrites current autocomplete status · case 05

The error completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22461

Autocomplete loading and empty states: refresh permits committing rows for a different draft · case 01

The selectable completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22462

Autocomplete loading and empty states: refresh permits committing rows for a different draft · case 02

The selectable completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22463

Autocomplete loading and empty states: refresh permits committing rows for a different draft · case 03

The selectable completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22464

Autocomplete loading and empty states: refresh permits committing rows for a different draft · case 04

The selectable completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22465

Autocomplete loading and empty states: refresh permits committing rows for a different draft · case 05

The selectable completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22466

Autocomplete loading and empty states: aborted suggestion query becomes a visible network error · case 01

The cancel completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22467

Autocomplete loading and empty states: aborted suggestion query becomes a visible network error · case 02

The cancel completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22468

Autocomplete loading and empty states: aborted suggestion query becomes a visible network error · case 03

The cancel completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22469

Autocomplete loading and empty states: aborted suggestion query becomes a visible network error · case 04

The cancel completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22470

Autocomplete loading and empty states: aborted suggestion query becomes a visible network error · case 05

The cancel completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22471

Autocomplete loading and empty states: busy flag remains set after the completion response settles · case 01

The busy completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22472

Autocomplete loading and empty states: busy flag remains set after the completion response settles · case 02

The busy completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22473

Autocomplete loading and empty states: busy flag remains set after the completion response settles · case 03

The busy completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22474

Autocomplete loading and empty states: busy flag remains set after the completion response settles · case 04

The busy completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22475

Autocomplete loading and empty states: busy flag remains set after the completion response settles · case 05

The busy completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22476

Autocomplete loading and empty states: refresh spinner replaces all existing completion rows · case 01

The preserve completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22477

Autocomplete loading and empty states: refresh spinner replaces all existing completion rows · case 02

The preserve completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22478

Autocomplete loading and empty states: refresh spinner replaces all existing completion rows · case 03

The preserve completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22479

Autocomplete loading and empty states: refresh spinner replaces all existing completion rows · case 04

The preserve completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22480

Autocomplete loading and empty states: refresh spinner replaces all existing completion rows · case 05

The preserve completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22481

Autocomplete loading and empty states: loading state gives the no-results message precedence over a failed query · case 01

The status-priority completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22482

Autocomplete loading and empty states: loading state gives the no-results message precedence over a failed query · case 02

The status-priority completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22483

Autocomplete loading and empty states: loading state gives the no-results message precedence over a failed query · case 03

The status-priority completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22484

Autocomplete loading and empty states: loading state gives the no-results message precedence over a failed query · case 04

The status-priority completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22485

Autocomplete loading and empty states: loading state gives the no-results message precedence over a failed query · case 05

The status-priority completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22486

Autocomplete loading and empty states: retry affordance reports the error text as the query · case 01

The retry-label completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22487

Autocomplete loading and empty states: retry affordance reports the error text as the query · case 02

The retry-label completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22488

Autocomplete loading and empty states: retry affordance reports the error text as the query · case 03

The retry-label completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22489

Autocomplete loading and empty states: retry affordance reports the error text as the query · case 04

The retry-label completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22490

Autocomplete loading and empty states: retry affordance reports the error text as the query · case 05

The retry-label completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22491

Paged autocomplete interaction: later page replaces earlier suggestion rows · case 01

The append completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22492

Paged autocomplete interaction: later page replaces earlier suggestion rows · case 02

The append completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22493

Paged autocomplete interaction: later page replaces earlier suggestion rows · case 03

The append completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22494

Paged autocomplete interaction: later page replaces earlier suggestion rows · case 04

The append completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22495

Paged autocomplete interaction: later page replaces earlier suggestion rows · case 05

The append completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22496

Paged autocomplete interaction: first response appends obsolete rows from a previous query · case 01

The first completion transition produces an incorrect observable state.

Autocomplete interactions● Open access↗
FA-22497

Paged autocomplete interaction: first response appends obsolete rows from a previous query · case 02

The first completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22498

Paged autocomplete interaction: first response appends obsolete rows from a previous query · case 03

The first completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22499

Paged autocomplete interaction: first response appends obsolete rows from a previous query · case 04

The first completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗
FA-22500

Paged autocomplete interaction: first response appends obsolete rows from a previous query · case 05

The first completion transition produces an incorrect observable state.

Autocomplete interactions◈ Members↗

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 ↗