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-25101

A filter submission masks settled result counts until acknowledged · case 01

A filter submission masks settled result counts until acknowledged is violated by the widget projection.

Filter interfaces● Open access↗
FA-25102

A filter submission masks settled result counts until acknowledged · case 02

A filter submission masks settled result counts until acknowledged is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25103

A filter submission masks settled result counts until acknowledged · case 03

A filter submission masks settled result counts until acknowledged is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25104

A filter submission masks settled result counts until acknowledged · case 04

A filter submission masks settled result counts until acknowledged is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25105

A filter submission masks settled result counts until acknowledged · case 05

A filter submission masks settled result counts until acknowledged is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25106

Retry targets the failed current draft and does not retry old errors · case 01

Retry targets the failed current draft and does not retry old errors is violated by the widget projection.

Filter interfaces● Open access↗
FA-25107

Retry targets the failed current draft and does not retry old errors · case 02

Retry targets the failed current draft and does not retry old errors is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25108

Retry targets the failed current draft and does not retry old errors · case 03

Retry targets the failed current draft and does not retry old errors is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25109

Retry targets the failed current draft and does not retry old errors · case 04

Retry targets the failed current draft and does not retry old errors is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25110

Retry targets the failed current draft and does not retry old errors · case 05

Retry targets the failed current draft and does not retry old errors is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25111

Facet pages deduplicate by identity while retaining first-seen order · case 01

Facet pages deduplicate by identity while retaining first-seen order is violated by the widget projection.

Filter interfaces● Open access↗
FA-25112

Facet pages deduplicate by identity while retaining first-seen order · case 02

Facet pages deduplicate by identity while retaining first-seen order is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25113

Facet pages deduplicate by identity while retaining first-seen order · case 03

Facet pages deduplicate by identity while retaining first-seen order is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25114

Facet pages deduplicate by identity while retaining first-seen order · case 04

Facet pages deduplicate by identity while retaining first-seen order is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25115

Facet pages deduplicate by identity while retaining first-seen order · case 05

Facet pages deduplicate by identity while retaining first-seen order is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25116

A valid empty continuation cursor still permits the next facet page · case 01

A valid empty continuation cursor still permits the next facet page is violated by the widget projection.

Filter interfaces● Open access↗
FA-25117

A valid empty continuation cursor still permits the next facet page · case 02

A valid empty continuation cursor still permits the next facet page is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25118

A valid empty continuation cursor still permits the next facet page · case 03

A valid empty continuation cursor still permits the next facet page is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25119

A valid empty continuation cursor still permits the next facet page · case 04

A valid empty continuation cursor still permits the next facet page is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25120

A valid empty continuation cursor still permits the next facet page · case 05

A valid empty continuation cursor still permits the next facet page is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25121

Selected values outside loaded pages remain summarized · case 01

Selected values outside loaded pages remain summarized is violated by the widget projection.

Filter interfaces● Open access↗
FA-25122

Selected values outside loaded pages remain summarized · case 02

Selected values outside loaded pages remain summarized is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25123

Selected values outside loaded pages remain summarized · case 03

Selected values outside loaded pages remain summarized is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25124

Selected values outside loaded pages remain summarized · case 04

Selected values outside loaded pages remain summarized is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25125

Selected values outside loaded pages remain summarized · case 05

Selected values outside loaded pages remain summarized is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25126

An empty page does not imply the end when a cursor remains · case 01

An empty page does not imply the end when a cursor remains is violated by the widget projection.

Filter interfaces● Open access↗
FA-25127

An empty page does not imply the end when a cursor remains · case 02

An empty page does not imply the end when a cursor remains is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25128

An empty page does not imply the end when a cursor remains · case 03

An empty page does not imply the end when a cursor remains is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25129

An empty page does not imply the end when a cursor remains · case 04

An empty page does not imply the end when a cursor remains is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25130

An empty page does not imply the end when a cursor remains · case 05

An empty page does not imply the end when a cursor remains is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25131

Changing facet search replaces rather than appends the old page set · case 01

Changing facet search replaces rather than appends the old page set is violated by the widget projection.

Filter interfaces● Open access↗
FA-25132

Changing facet search replaces rather than appends the old page set · case 02

Changing facet search replaces rather than appends the old page set is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25133

Changing facet search replaces rather than appends the old page set · case 03

Changing facet search replaces rather than appends the old page set is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25134

Changing facet search replaces rather than appends the old page set · case 04

Changing facet search replaces rather than appends the old page set is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25135

Changing facet search replaces rather than appends the old page set · case 05

Changing facet search replaces rather than appends the old page set is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25136

Loaded-option totals count unique identities across pages · case 01

Loaded-option totals count unique identities across pages is violated by the widget projection.

Filter interfaces● Open access↗
FA-25137

Loaded-option totals count unique identities across pages · case 02

Loaded-option totals count unique identities across pages is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25138

Loaded-option totals count unique identities across pages · case 03

Loaded-option totals count unique identities across pages is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25139

Loaded-option totals count unique identities across pages · case 04

Loaded-option totals count unique identities across pages is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25140

Loaded-option totals count unique identities across pages · case 05

Loaded-option totals count unique identities across pages is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25141

Facet cycling visits exclusion before clearing · case 01

Facet cycling visits exclusion before clearing is violated by the widget projection.

Filter interfaces● Open access↗
FA-25142

Facet cycling visits exclusion before clearing · case 02

Facet cycling visits exclusion before clearing is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25143

Facet cycling visits exclusion before clearing · case 03

Facet cycling visits exclusion before clearing is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25144

Facet cycling visits exclusion before clearing · case 04

Facet cycling visits exclusion before clearing is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25145

Facet cycling visits exclusion before clearing · case 05

Facet cycling visits exclusion before clearing is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25146

Only excluded facets enter the negative operand channel · case 01

Only excluded facets enter the negative operand channel is violated by the widget projection.

Filter interfaces● Open access↗
FA-25147

Only excluded facets enter the negative operand channel · case 02

Only excluded facets enter the negative operand channel is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25148

Only excluded facets enter the negative operand channel · case 03

Only excluded facets enter the negative operand channel is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25149

Only excluded facets enter the negative operand channel · case 04

Only excluded facets enter the negative operand channel is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25150

Only excluded facets enter the negative operand channel · case 05

Only excluded facets enter the negative operand channel is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25151

Only included facets enter the positive operand channel · case 01

Only included facets enter the positive operand channel is violated by the widget projection.

Filter interfaces● Open access↗
FA-25152

Only included facets enter the positive operand channel · case 02

Only included facets enter the positive operand channel is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25153

Only included facets enter the positive operand channel · case 03

Only included facets enter the positive operand channel is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25154

Only included facets enter the positive operand channel · case 04

Only included facets enter the positive operand channel is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25155

Only included facets enter the positive operand channel · case 05

Only included facets enter the positive operand channel is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25156

Exclusion uses a negative rather than selected badge · case 01

Exclusion uses a negative rather than selected badge is violated by the widget projection.

Filter interfaces● Open access↗
FA-25157

Exclusion uses a negative rather than selected badge · case 02

Exclusion uses a negative rather than selected badge is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25158

Exclusion uses a negative rather than selected badge · case 03

Exclusion uses a negative rather than selected badge is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25159

Exclusion uses a negative rather than selected badge · case 04

Exclusion uses a negative rather than selected badge is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25160

Exclusion uses a negative rather than selected badge · case 05

Exclusion uses a negative rather than selected badge is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25161

Reverse activation traverses the tri-state cycle backward · case 01

Reverse activation traverses the tri-state cycle backward is violated by the widget projection.

Filter interfaces● Open access↗
FA-25162

Reverse activation traverses the tri-state cycle backward · case 02

Reverse activation traverses the tri-state cycle backward is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25163

Reverse activation traverses the tri-state cycle backward · case 03

Reverse activation traverses the tri-state cycle backward is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25164

Reverse activation traverses the tri-state cycle backward · case 04

Reverse activation traverses the tri-state cycle backward is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25165

Reverse activation traverses the tri-state cycle backward · case 05

Reverse activation traverses the tri-state cycle backward is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25166

Next-action help describes the upcoming tri-state action · case 01

Next-action help describes the upcoming tri-state action is violated by the widget projection.

Filter interfaces● Open access↗
FA-25167

Next-action help describes the upcoming tri-state action · case 02

Next-action help describes the upcoming tri-state action is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25168

Next-action help describes the upcoming tri-state action · case 03

Next-action help describes the upcoming tri-state action is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25169

Next-action help describes the upcoming tri-state action · case 04

Next-action help describes the upcoming tri-state action is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25170

Next-action help describes the upcoming tri-state action · case 05

Next-action help describes the upcoming tri-state action is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25171

Parent changes retain only compatible child selections · case 01

Parent changes retain only compatible child selections is violated by the widget projection.

Filter interfaces● Open access↗
FA-25172

Parent changes retain only compatible child selections · case 02

Parent changes retain only compatible child selections is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25173

Parent changes retain only compatible child selections · case 03

Parent changes retain only compatible child selections is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25174

Parent changes retain only compatible child selections · case 04

Parent changes retain only compatible child selections is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25175

Parent changes retain only compatible child selections · case 05

Parent changes retain only compatible child selections is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25176

Dependent editors wait for both parent scope and loaded options · case 01

Dependent editors wait for both parent scope and loaded options is violated by the widget projection.

Filter interfaces● Open access↗
FA-25177

Dependent editors wait for both parent scope and loaded options · case 02

Dependent editors wait for both parent scope and loaded options is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25178

Dependent editors wait for both parent scope and loaded options · case 03

Dependent editors wait for both parent scope and loaded options is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25179

Dependent editors wait for both parent scope and loaded options · case 04

Dependent editors wait for both parent scope and loaded options is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25180

Dependent editors wait for both parent scope and loaded options · case 05

Dependent editors wait for both parent scope and loaded options is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25181

Empty-string parent identities still scope dependent option requests · case 01

Empty-string parent identities still scope dependent option requests is violated by the widget projection.

Filter interfaces● Open access↗
FA-25182

Empty-string parent identities still scope dependent option requests · case 02

Empty-string parent identities still scope dependent option requests is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25183

Empty-string parent identities still scope dependent option requests · case 03

Empty-string parent identities still scope dependent option requests is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25184

Empty-string parent identities still scope dependent option requests · case 04

Empty-string parent identities still scope dependent option requests is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25185

Empty-string parent identities still scope dependent option requests · case 05

Empty-string parent identities still scope dependent option requests is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25186

Removing a parent clears its dependent criteria · case 01

Removing a parent clears its dependent criteria is violated by the widget projection.

Filter interfaces● Open access↗
FA-25187

Removing a parent clears its dependent criteria · case 02

Removing a parent clears its dependent criteria is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25188

Removing a parent clears its dependent criteria · case 03

Removing a parent clears its dependent criteria is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25189

Removing a parent clears its dependent criteria · case 04

Removing a parent clears its dependent criteria is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25190

Removing a parent clears its dependent criteria · case 05

Removing a parent clears its dependent criteria is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25191

Pending validation markers apply only to selected loading dependents · case 01

Pending validation markers apply only to selected loading dependents is violated by the widget projection.

Filter interfaces● Open access↗
FA-25192

Pending validation markers apply only to selected loading dependents · case 02

Pending validation markers apply only to selected loading dependents is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25193

Pending validation markers apply only to selected loading dependents · case 03

Pending validation markers apply only to selected loading dependents is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25194

Pending validation markers apply only to selected loading dependents · case 04

Pending validation markers apply only to selected loading dependents is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25195

Pending validation markers apply only to selected loading dependents · case 05

Pending validation markers apply only to selected loading dependents is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25196

Removed-child notices wait for the parent option load to settle · case 01

Removed-child notices wait for the parent option load to settle is violated by the widget projection.

Filter interfaces● Open access↗
FA-25197

Removed-child notices wait for the parent option load to settle · case 02

Removed-child notices wait for the parent option load to settle is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25198

Removed-child notices wait for the parent option load to settle · case 03

Removed-child notices wait for the parent option load to settle is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25199

Removed-child notices wait for the parent option load to settle · case 04

Removed-child notices wait for the parent option load to settle is violated by the widget projection.

Filter interfaces◈ Members↗
FA-25200

Removed-child notices wait for the parent option load to settle · case 05

Removed-child notices wait for the parent option load to settle is violated by the widget projection.

Filter 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 ↗