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-35801

Close others command: pane scope · case 01

The tab workspace reports an incorrect pane scope.

Tab interfaces● Open access↗
FA-35802

Close others command: pane scope · case 02

The tab workspace reports an incorrect pane scope.

Tab interfaces◈ Members↗
FA-35803

Close others command: pane scope · case 03

The tab workspace reports an incorrect pane scope.

Tab interfaces◈ Members↗
FA-35804

Close others command: pane scope · case 04

The tab workspace reports an incorrect pane scope.

Tab interfaces◈ Members↗
FA-35805

Close others command: pane scope · case 05

The tab workspace reports an incorrect pane scope.

Tab interfaces◈ Members↗
FA-35806

Close others command: dirty victim prompts · case 01

The tab workspace reports an incorrect dirty victim prompts.

Tab interfaces● Open access↗
FA-35807

Close others command: dirty victim prompts · case 02

The tab workspace reports an incorrect dirty victim prompts.

Tab interfaces◈ Members↗
FA-35808

Close others command: dirty victim prompts · case 03

The tab workspace reports an incorrect dirty victim prompts.

Tab interfaces◈ Members↗
FA-35809

Close others command: dirty victim prompts · case 04

The tab workspace reports an incorrect dirty victim prompts.

Tab interfaces◈ Members↗
FA-35810

Close others command: dirty victim prompts · case 05

The tab workspace reports an incorrect dirty victim prompts.

Tab interfaces◈ Members↗
FA-35811

Close others command: clean immediate closures · case 01

The tab workspace reports an incorrect clean immediate closures.

Tab interfaces● Open access↗
FA-35812

Close others command: clean immediate closures · case 02

The tab workspace reports an incorrect clean immediate closures.

Tab interfaces◈ Members↗
FA-35813

Close others command: clean immediate closures · case 03

The tab workspace reports an incorrect clean immediate closures.

Tab interfaces◈ Members↗
FA-35814

Close others command: clean immediate closures · case 04

The tab workspace reports an incorrect clean immediate closures.

Tab interfaces◈ Members↗
FA-35815

Close others command: clean immediate closures · case 05

The tab workspace reports an incorrect clean immediate closures.

Tab interfaces◈ Members↗
FA-35816

Close others command: command selection · case 01

The tab workspace reports an incorrect command selection.

Tab interfaces● Open access↗
FA-35817

Close others command: command selection · case 02

The tab workspace reports an incorrect command selection.

Tab interfaces◈ Members↗
FA-35818

Close others command: command selection · case 03

The tab workspace reports an incorrect command selection.

Tab interfaces◈ Members↗
FA-35819

Close others command: command selection · case 04

The tab workspace reports an incorrect command selection.

Tab interfaces◈ Members↗
FA-35820

Close others command: command selection · case 05

The tab workspace reports an incorrect command selection.

Tab interfaces◈ Members↗
FA-35821

Save before close: save required · case 01

The tab workspace reports an incorrect save required.

Tab interfaces● Open access↗
FA-35822

Save before close: save required · case 02

The tab workspace reports an incorrect save required.

Tab interfaces◈ Members↗
FA-35823

Save before close: save required · case 03

The tab workspace reports an incorrect save required.

Tab interfaces◈ Members↗
FA-35824

Save before close: save required · case 04

The tab workspace reports an incorrect save required.

Tab interfaces◈ Members↗
FA-35825

Save before close: save required · case 05

The tab workspace reports an incorrect save required.

Tab interfaces◈ Members↗
FA-35826

Save before close: completion correlation · case 01

The tab workspace reports an incorrect completion correlation.

Tab interfaces● Open access↗
FA-35827

Save before close: completion correlation · case 02

The tab workspace reports an incorrect completion correlation.

Tab interfaces◈ Members↗
FA-35828

Save before close: completion correlation · case 03

The tab workspace reports an incorrect completion correlation.

Tab interfaces◈ Members↗
FA-35829

Save before close: completion correlation · case 04

The tab workspace reports an incorrect completion correlation.

Tab interfaces◈ Members↗
FA-35830

Save before close: completion correlation · case 05

The tab workspace reports an incorrect completion correlation.

Tab interfaces◈ Members↗
FA-35831

Save before close: save success · case 01

The tab workspace reports an incorrect save success.

Tab interfaces● Open access↗
FA-35832

Save before close: save success · case 02

The tab workspace reports an incorrect save success.

Tab interfaces◈ Members↗
FA-35833

Save before close: save success · case 03

The tab workspace reports an incorrect save success.

Tab interfaces◈ Members↗
FA-35834

Save before close: save success · case 04

The tab workspace reports an incorrect save success.

Tab interfaces◈ Members↗
FA-35835

Save before close: save success · case 05

The tab workspace reports an incorrect save success.

Tab interfaces◈ Members↗
FA-35836

Save before close: revision cleanliness · case 01

The tab workspace reports an incorrect revision cleanliness.

Tab interfaces● Open access↗
FA-35837

Save before close: revision cleanliness · case 02

The tab workspace reports an incorrect revision cleanliness.

Tab interfaces◈ Members↗
FA-35838

Save before close: revision cleanliness · case 03

The tab workspace reports an incorrect revision cleanliness.

Tab interfaces◈ Members↗
FA-35839

Save before close: revision cleanliness · case 04

The tab workspace reports an incorrect revision cleanliness.

Tab interfaces◈ Members↗
FA-35840

Save before close: revision cleanliness · case 05

The tab workspace reports an incorrect revision cleanliness.

Tab interfaces◈ Members↗
FA-35841

Save before close: close commit · case 01

The tab workspace reports an incorrect close commit.

Tab interfaces● Open access↗
FA-35842

Save before close: close commit · case 02

The tab workspace reports an incorrect close commit.

Tab interfaces◈ Members↗
FA-35843

Save before close: close commit · case 03

The tab workspace reports an incorrect close commit.

Tab interfaces◈ Members↗
FA-35844

Save before close: close commit · case 04

The tab workspace reports an incorrect close commit.

Tab interfaces◈ Members↗
FA-35845

Save before close: close commit · case 05

The tab workspace reports an incorrect close commit.

Tab interfaces◈ Members↗
FA-35846

Save before close: retry visible · case 01

The tab workspace reports an incorrect retry visible.

Tab interfaces● Open access↗
FA-35847

Save before close: retry visible · case 02

The tab workspace reports an incorrect retry visible.

Tab interfaces◈ Members↗
FA-35848

Save before close: retry visible · case 03

The tab workspace reports an incorrect retry visible.

Tab interfaces◈ Members↗
FA-35849

Save before close: retry visible · case 04

The tab workspace reports an incorrect retry visible.

Tab interfaces◈ Members↗
FA-35850

Save before close: retry visible · case 05

The tab workspace reports an incorrect retry visible.

Tab interfaces◈ Members↗
FA-35851

Linked pane scroll: source election · case 01

The tab workspace reports an incorrect source election.

Tab interfaces● Open access↗
FA-35852

Linked pane scroll: source election · case 02

The tab workspace reports an incorrect source election.

Tab interfaces◈ Members↗
FA-35853

Linked pane scroll: source election · case 03

The tab workspace reports an incorrect source election.

Tab interfaces◈ Members↗
FA-35854

Linked pane scroll: source election · case 04

The tab workspace reports an incorrect source election.

Tab interfaces◈ Members↗
FA-35855

Linked pane scroll: source election · case 05

The tab workspace reports an incorrect source election.

Tab interfaces◈ Members↗
FA-35856

Linked pane scroll: document link scope · case 01

The tab workspace reports an incorrect document link scope.

Tab interfaces● Open access↗
FA-35857

Linked pane scroll: document link scope · case 02

The tab workspace reports an incorrect document link scope.

Tab interfaces◈ Members↗
FA-35858

Linked pane scroll: document link scope · case 03

The tab workspace reports an incorrect document link scope.

Tab interfaces◈ Members↗
FA-35859

Linked pane scroll: document link scope · case 04

The tab workspace reports an incorrect document link scope.

Tab interfaces◈ Members↗
FA-35860

Linked pane scroll: document link scope · case 05

The tab workspace reports an incorrect document link scope.

Tab interfaces◈ Members↗
FA-35861

Linked pane scroll: echo suppression · case 01

The tab workspace reports an incorrect echo suppression.

Tab interfaces● Open access↗
FA-35862

Linked pane scroll: echo suppression · case 02

The tab workspace reports an incorrect echo suppression.

Tab interfaces◈ Members↗
FA-35863

Linked pane scroll: echo suppression · case 03

The tab workspace reports an incorrect echo suppression.

Tab interfaces◈ Members↗
FA-35864

Linked pane scroll: echo suppression · case 04

The tab workspace reports an incorrect echo suppression.

Tab interfaces◈ Members↗
FA-35865

Linked pane scroll: echo suppression · case 05

The tab workspace reports an incorrect echo suppression.

Tab interfaces◈ Members↗
FA-35866

Linked pane scroll: proportional scroll · case 01

The tab workspace reports an incorrect proportional scroll.

Tab interfaces● Open access↗
FA-35867

Linked pane scroll: proportional scroll · case 02

The tab workspace reports an incorrect proportional scroll.

Tab interfaces◈ Members↗
FA-35868

Linked pane scroll: proportional scroll · case 03

The tab workspace reports an incorrect proportional scroll.

Tab interfaces◈ Members↗
FA-35869

Linked pane scroll: proportional scroll · case 04

The tab workspace reports an incorrect proportional scroll.

Tab interfaces◈ Members↗
FA-35870

Linked pane scroll: proportional scroll · case 05

The tab workspace reports an incorrect proportional scroll.

Tab interfaces◈ Members↗
FA-35871

Linked pane scroll: peer end clamp · case 01

The tab workspace reports an incorrect peer end clamp.

Tab interfaces● Open access↗
FA-35872

Linked pane scroll: peer end clamp · case 02

The tab workspace reports an incorrect peer end clamp.

Tab interfaces◈ Members↗
FA-35873

Linked pane scroll: peer end clamp · case 03

The tab workspace reports an incorrect peer end clamp.

Tab interfaces◈ Members↗
FA-35874

Linked pane scroll: peer end clamp · case 04

The tab workspace reports an incorrect peer end clamp.

Tab interfaces◈ Members↗
FA-35875

Linked pane scroll: peer end clamp · case 05

The tab workspace reports an incorrect peer end clamp.

Tab interfaces◈ Members↗
FA-35876

Linked pane scroll: forwarded token · case 01

The tab workspace reports an incorrect forwarded token.

Tab interfaces● Open access↗
FA-35877

Linked pane scroll: forwarded token · case 02

The tab workspace reports an incorrect forwarded token.

Tab interfaces◈ Members↗
FA-35878

Linked pane scroll: forwarded token · case 03

The tab workspace reports an incorrect forwarded token.

Tab interfaces◈ Members↗
FA-35879

Linked pane scroll: forwarded token · case 04

The tab workspace reports an incorrect forwarded token.

Tab interfaces◈ Members↗
FA-35880

Linked pane scroll: forwarded token · case 05

The tab workspace reports an incorrect forwarded token.

Tab interfaces◈ Members↗
FA-35881

Collapse empty pane: collapse trigger · case 01

The tab workspace reports an incorrect collapse trigger.

Tab interfaces● Open access↗
FA-35882

Collapse empty pane: collapse trigger · case 02

The tab workspace reports an incorrect collapse trigger.

Tab interfaces◈ Members↗
FA-35883

Collapse empty pane: collapse trigger · case 03

The tab workspace reports an incorrect collapse trigger.

Tab interfaces◈ Members↗
FA-35884

Collapse empty pane: collapse trigger · case 04

The tab workspace reports an incorrect collapse trigger.

Tab interfaces◈ Members↗
FA-35885

Collapse empty pane: collapse trigger · case 05

The tab workspace reports an incorrect collapse trigger.

Tab interfaces◈ Members↗
FA-35886

Collapse empty pane: root placeholder · case 01

The tab workspace reports an incorrect root placeholder.

Tab interfaces● Open access↗
FA-35887

Collapse empty pane: root placeholder · case 02

The tab workspace reports an incorrect root placeholder.

Tab interfaces◈ Members↗
FA-35888

Collapse empty pane: root placeholder · case 03

The tab workspace reports an incorrect root placeholder.

Tab interfaces◈ Members↗
FA-35889

Collapse empty pane: root placeholder · case 04

The tab workspace reports an incorrect root placeholder.

Tab interfaces◈ Members↗
FA-35890

Collapse empty pane: root placeholder · case 05

The tab workspace reports an incorrect root placeholder.

Tab interfaces◈ Members↗
FA-35891

Collapse empty pane: promoted subtree · case 01

The tab workspace reports an incorrect promoted subtree.

Tab interfaces● Open access↗
FA-35892

Collapse empty pane: promoted subtree · case 02

The tab workspace reports an incorrect promoted subtree.

Tab interfaces◈ Members↗
FA-35893

Collapse empty pane: promoted subtree · case 03

The tab workspace reports an incorrect promoted subtree.

Tab interfaces◈ Members↗
FA-35894

Collapse empty pane: promoted subtree · case 04

The tab workspace reports an incorrect promoted subtree.

Tab interfaces◈ Members↗
FA-35895

Collapse empty pane: promoted subtree · case 05

The tab workspace reports an incorrect promoted subtree.

Tab interfaces◈ Members↗
FA-35896

Collapse empty pane: separator reclamation · case 01

The tab workspace reports an incorrect separator reclamation.

Tab interfaces● Open access↗
FA-35897

Collapse empty pane: separator reclamation · case 02

The tab workspace reports an incorrect separator reclamation.

Tab interfaces◈ Members↗
FA-35898

Collapse empty pane: separator reclamation · case 03

The tab workspace reports an incorrect separator reclamation.

Tab interfaces◈ Members↗
FA-35899

Collapse empty pane: separator reclamation · case 04

The tab workspace reports an incorrect separator reclamation.

Tab interfaces◈ Members↗
FA-35900

Collapse empty pane: separator reclamation · case 05

The tab workspace reports an incorrect separator reclamation.

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 ↗