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-36501

Tab decoration measurement: title available width · case 01

The tab workspace reports an incorrect title available width.

Tab interfaces● Open access↗
FA-36502

Tab decoration measurement: title available width · case 02

The tab workspace reports an incorrect title available width.

Tab interfaces◈ Members↗
FA-36503

Tab decoration measurement: title available width · case 03

The tab workspace reports an incorrect title available width.

Tab interfaces◈ Members↗
FA-36504

Tab decoration measurement: title available width · case 04

The tab workspace reports an incorrect title available width.

Tab interfaces◈ Members↗
FA-36505

Tab decoration measurement: title available width · case 05

The tab workspace reports an incorrect title available width.

Tab interfaces◈ Members↗
FA-36506

Tab decoration measurement: title truncation decision · case 01

The tab workspace reports an incorrect title truncation decision.

Tab interfaces● Open access↗
FA-36507

Tab decoration measurement: title truncation decision · case 02

The tab workspace reports an incorrect title truncation decision.

Tab interfaces◈ Members↗
FA-36508

Tab decoration measurement: title truncation decision · case 03

The tab workspace reports an incorrect title truncation decision.

Tab interfaces◈ Members↗
FA-36509

Tab decoration measurement: title truncation decision · case 04

The tab workspace reports an incorrect title truncation decision.

Tab interfaces◈ Members↗
FA-36510

Tab decoration measurement: title truncation decision · case 05

The tab workspace reports an incorrect title truncation decision.

Tab interfaces◈ Members↗
FA-36511

Tab context target: context command target · case 01

The tab workspace reports an incorrect context command target.

Tab interfaces● Open access↗
FA-36512

Tab context target: context command target · case 02

The tab workspace reports an incorrect context command target.

Tab interfaces◈ Members↗
FA-36513

Tab context target: context command target · case 03

The tab workspace reports an incorrect context command target.

Tab interfaces◈ Members↗
FA-36514

Tab context target: context command target · case 04

The tab workspace reports an incorrect context command target.

Tab interfaces◈ Members↗
FA-36515

Tab context target: context command target · case 05

The tab workspace reports an incorrect context command target.

Tab interfaces◈ Members↗
FA-36516

Tab context target: bulk selection expansion · case 01

The tab workspace reports an incorrect bulk selection expansion.

Tab interfaces● Open access↗
FA-36517

Tab context target: bulk selection expansion · case 02

The tab workspace reports an incorrect bulk selection expansion.

Tab interfaces◈ Members↗
FA-36518

Tab context target: bulk selection expansion · case 03

The tab workspace reports an incorrect bulk selection expansion.

Tab interfaces◈ Members↗
FA-36519

Tab context target: bulk selection expansion · case 04

The tab workspace reports an incorrect bulk selection expansion.

Tab interfaces◈ Members↗
FA-36520

Tab context target: bulk selection expansion · case 05

The tab workspace reports an incorrect bulk selection expansion.

Tab interfaces◈ Members↗
FA-36521

Tab context target: context does not activate · case 01

The tab workspace reports an incorrect context does not activate.

Tab interfaces● Open access↗
FA-36522

Tab context target: context does not activate · case 02

The tab workspace reports an incorrect context does not activate.

Tab interfaces◈ Members↗
FA-36523

Tab context target: context does not activate · case 03

The tab workspace reports an incorrect context does not activate.

Tab interfaces◈ Members↗
FA-36524

Tab context target: context does not activate · case 04

The tab workspace reports an incorrect context does not activate.

Tab interfaces◈ Members↗
FA-36525

Tab context target: context does not activate · case 05

The tab workspace reports an incorrect context does not activate.

Tab interfaces◈ Members↗
FA-36526

Tab context target: context dirty affordance · case 01

The tab workspace reports an incorrect context dirty affordance.

Tab interfaces● Open access↗
FA-36527

Tab context target: context dirty affordance · case 02

The tab workspace reports an incorrect context dirty affordance.

Tab interfaces◈ Members↗
FA-36528

Tab context target: context dirty affordance · case 03

The tab workspace reports an incorrect context dirty affordance.

Tab interfaces◈ Members↗
FA-36529

Tab context target: context dirty affordance · case 04

The tab workspace reports an incorrect context dirty affordance.

Tab interfaces◈ Members↗
FA-36530

Tab context target: context dirty affordance · case 05

The tab workspace reports an incorrect context dirty affordance.

Tab interfaces◈ Members↗
FA-36531

Tab context target: context pin action · case 01

The tab workspace reports an incorrect context pin action.

Tab interfaces● Open access↗
FA-36532

Tab context target: context pin action · case 02

The tab workspace reports an incorrect context pin action.

Tab interfaces◈ Members↗
FA-36533

Tab context target: context pin action · case 03

The tab workspace reports an incorrect context pin action.

Tab interfaces◈ Members↗
FA-36534

Tab context target: context pin action · case 04

The tab workspace reports an incorrect context pin action.

Tab interfaces◈ Members↗
FA-36535

Tab context target: context pin action · case 05

The tab workspace reports an incorrect context pin action.

Tab interfaces◈ Members↗
FA-36536

Tab context target: context relative index · case 01

The tab workspace reports an incorrect context relative index.

Tab interfaces● Open access↗
FA-36537

Tab context target: context relative index · case 02

The tab workspace reports an incorrect context relative index.

Tab interfaces◈ Members↗
FA-36538

Tab context target: context relative index · case 03

The tab workspace reports an incorrect context relative index.

Tab interfaces◈ Members↗
FA-36539

Tab context target: context relative index · case 04

The tab workspace reports an incorrect context relative index.

Tab interfaces◈ Members↗
FA-36540

Tab context target: context relative index · case 05

The tab workspace reports an incorrect context relative index.

Tab interfaces◈ Members↗
FA-36541

Tearoff commit receipt: matching transfer receipt · case 01

The tab workspace reports an incorrect matching transfer receipt.

Tab interfaces● Open access↗
FA-36542

Tearoff commit receipt: matching transfer receipt · case 02

The tab workspace reports an incorrect matching transfer receipt.

Tab interfaces◈ Members↗
FA-36543

Tearoff commit receipt: matching transfer receipt · case 03

The tab workspace reports an incorrect matching transfer receipt.

Tab interfaces◈ Members↗
FA-36544

Tearoff commit receipt: matching transfer receipt · case 04

The tab workspace reports an incorrect matching transfer receipt.

Tab interfaces◈ Members↗
FA-36545

Tearoff commit receipt: matching transfer receipt · case 05

The tab workspace reports an incorrect matching transfer receipt.

Tab interfaces◈ Members↗
FA-36546

Tearoff commit receipt: destination acceptance · case 01

The tab workspace reports an incorrect destination acceptance.

Tab interfaces● Open access↗
FA-36547

Tearoff commit receipt: destination acceptance · case 02

The tab workspace reports an incorrect destination acceptance.

Tab interfaces◈ Members↗
FA-36548

Tearoff commit receipt: destination acceptance · case 03

The tab workspace reports an incorrect destination acceptance.

Tab interfaces◈ Members↗
FA-36549

Tearoff commit receipt: destination acceptance · case 04

The tab workspace reports an incorrect destination acceptance.

Tab interfaces◈ Members↗
FA-36550

Tearoff commit receipt: destination acceptance · case 05

The tab workspace reports an incorrect destination acceptance.

Tab interfaces◈ Members↗
FA-36551

Tearoff commit receipt: source commit removal · case 01

The tab workspace reports an incorrect source commit removal.

Tab interfaces● Open access↗
FA-36552

Tearoff commit receipt: source commit removal · case 02

The tab workspace reports an incorrect source commit removal.

Tab interfaces◈ Members↗
FA-36553

Tearoff commit receipt: source commit removal · case 03

The tab workspace reports an incorrect source commit removal.

Tab interfaces◈ Members↗
FA-36554

Tearoff commit receipt: source commit removal · case 04

The tab workspace reports an incorrect source commit removal.

Tab interfaces◈ Members↗
FA-36555

Tearoff commit receipt: source commit removal · case 05

The tab workspace reports an incorrect source commit removal.

Tab interfaces◈ Members↗
FA-36556

Tearoff commit receipt: duplicate receipt noop · case 01

The tab workspace reports an incorrect duplicate receipt noop.

Tab interfaces● Open access↗
FA-36557

Tearoff commit receipt: duplicate receipt noop · case 02

The tab workspace reports an incorrect duplicate receipt noop.

Tab interfaces◈ Members↗
FA-36558

Tearoff commit receipt: duplicate receipt noop · case 03

The tab workspace reports an incorrect duplicate receipt noop.

Tab interfaces◈ Members↗
FA-36559

Tearoff commit receipt: duplicate receipt noop · case 04

The tab workspace reports an incorrect duplicate receipt noop.

Tab interfaces◈ Members↗
FA-36560

Tearoff commit receipt: duplicate receipt noop · case 05

The tab workspace reports an incorrect duplicate receipt noop.

Tab interfaces◈ Members↗
FA-36561

Tearoff commit receipt: failure source restoration · case 01

The tab workspace reports an incorrect failure source restoration.

Tab interfaces● Open access↗
FA-36562

Tearoff commit receipt: failure source restoration · case 02

The tab workspace reports an incorrect failure source restoration.

Tab interfaces◈ Members↗
FA-36563

Tearoff commit receipt: failure source restoration · case 03

The tab workspace reports an incorrect failure source restoration.

Tab interfaces◈ Members↗
FA-36564

Tearoff commit receipt: failure source restoration · case 04

The tab workspace reports an incorrect failure source restoration.

Tab interfaces◈ Members↗
FA-36565

Tearoff commit receipt: failure source restoration · case 05

The tab workspace reports an incorrect failure source restoration.

Tab interfaces◈ Members↗
FA-36566

Tearoff commit receipt: pending transfer placeholder · case 01

The tab workspace reports an incorrect pending transfer placeholder.

Tab interfaces● Open access↗
FA-36567

Tearoff commit receipt: pending transfer placeholder · case 02

The tab workspace reports an incorrect pending transfer placeholder.

Tab interfaces◈ Members↗
FA-36568

Tearoff commit receipt: pending transfer placeholder · case 03

The tab workspace reports an incorrect pending transfer placeholder.

Tab interfaces◈ Members↗
FA-36569

Tearoff commit receipt: pending transfer placeholder · case 04

The tab workspace reports an incorrect pending transfer placeholder.

Tab interfaces◈ Members↗
FA-36570

Tearoff commit receipt: pending transfer placeholder · case 05

The tab workspace reports an incorrect pending transfer placeholder.

Tab interfaces◈ Members↗
FA-36571

Workspace pane id remap: pane id namespace · case 01

The tab workspace reports an incorrect pane id namespace.

Tab interfaces● Open access↗
FA-36572

Workspace pane id remap: pane id namespace · case 02

The tab workspace reports an incorrect pane id namespace.

Tab interfaces◈ Members↗
FA-36573

Workspace pane id remap: pane id namespace · case 03

The tab workspace reports an incorrect pane id namespace.

Tab interfaces◈ Members↗
FA-36574

Workspace pane id remap: pane id namespace · case 04

The tab workspace reports an incorrect pane id namespace.

Tab interfaces◈ Members↗
FA-36575

Workspace pane id remap: pane id namespace · case 05

The tab workspace reports an incorrect pane id namespace.

Tab interfaces◈ Members↗
FA-36576

Workspace pane id remap: owner reference rewrite · case 01

The tab workspace reports an incorrect owner reference rewrite.

Tab interfaces● Open access↗
FA-36577

Workspace pane id remap: owner reference rewrite · case 02

The tab workspace reports an incorrect owner reference rewrite.

Tab interfaces◈ Members↗
FA-36578

Workspace pane id remap: owner reference rewrite · case 03

The tab workspace reports an incorrect owner reference rewrite.

Tab interfaces◈ Members↗
FA-36579

Workspace pane id remap: owner reference rewrite · case 04

The tab workspace reports an incorrect owner reference rewrite.

Tab interfaces◈ Members↗
FA-36580

Workspace pane id remap: owner reference rewrite · case 05

The tab workspace reports an incorrect owner reference rewrite.

Tab interfaces◈ Members↗
FA-36581

Workspace pane id remap: selected pane reference · case 01

The tab workspace reports an incorrect selected pane reference.

Tab interfaces● Open access↗
FA-36582

Workspace pane id remap: selected pane reference · case 02

The tab workspace reports an incorrect selected pane reference.

Tab interfaces◈ Members↗
FA-36583

Workspace pane id remap: selected pane reference · case 03

The tab workspace reports an incorrect selected pane reference.

Tab interfaces◈ Members↗
FA-36584

Workspace pane id remap: selected pane reference · case 04

The tab workspace reports an incorrect selected pane reference.

Tab interfaces◈ Members↗
FA-36585

Workspace pane id remap: selected pane reference · case 05

The tab workspace reports an incorrect selected pane reference.

Tab interfaces◈ Members↗
FA-36586

Workspace pane id remap: split edge reference · case 01

The tab workspace reports an incorrect split edge reference.

Tab interfaces● Open access↗
FA-36587

Workspace pane id remap: split edge reference · case 02

The tab workspace reports an incorrect split edge reference.

Tab interfaces◈ Members↗
FA-36588

Workspace pane id remap: split edge reference · case 03

The tab workspace reports an incorrect split edge reference.

Tab interfaces◈ Members↗
FA-36589

Workspace pane id remap: split edge reference · case 04

The tab workspace reports an incorrect split edge reference.

Tab interfaces◈ Members↗
FA-36590

Workspace pane id remap: split edge reference · case 05

The tab workspace reports an incorrect split edge reference.

Tab interfaces◈ Members↗
FA-36591

Workspace pane id remap: document tab id retention · case 01

The tab workspace reports an incorrect document tab id retention.

Tab interfaces● Open access↗
FA-36592

Workspace pane id remap: document tab id retention · case 02

The tab workspace reports an incorrect document tab id retention.

Tab interfaces◈ Members↗
FA-36593

Workspace pane id remap: document tab id retention · case 03

The tab workspace reports an incorrect document tab id retention.

Tab interfaces◈ Members↗
FA-36594

Workspace pane id remap: document tab id retention · case 04

The tab workspace reports an incorrect document tab id retention.

Tab interfaces◈ Members↗
FA-36595

Workspace pane id remap: document tab id retention · case 05

The tab workspace reports an incorrect document tab id retention.

Tab interfaces◈ Members↗
FA-36596

Workspace pane id remap: owner key retention · case 01

The tab workspace reports an incorrect owner key retention.

Tab interfaces● Open access↗
FA-36597

Workspace pane id remap: owner key retention · case 02

The tab workspace reports an incorrect owner key retention.

Tab interfaces◈ Members↗
FA-36598

Workspace pane id remap: owner key retention · case 03

The tab workspace reports an incorrect owner key retention.

Tab interfaces◈ Members↗
FA-36599

Workspace pane id remap: owner key retention · case 04

The tab workspace reports an incorrect owner key retention.

Tab interfaces◈ Members↗
FA-36600

Workspace pane id remap: owner key retention · case 05

The tab workspace reports an incorrect owner key retention.

Tab interfaces◈ 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 ↗