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
Cached autocomplete presentation: cached suggestions cross dependent-picker scopes · case 01
The scope-match completion transition produces an incorrect observable state.
Cached autocomplete presentation: cached suggestions cross dependent-picker scopes · case 02
The scope-match completion transition produces an incorrect observable state.
Cached autocomplete presentation: cached suggestions cross dependent-picker scopes · case 03
The scope-match completion transition produces an incorrect observable state.
Cached autocomplete presentation: cached suggestions cross dependent-picker scopes · case 04
The scope-match completion transition produces an incorrect observable state.
Cached autocomplete presentation: cached suggestions cross dependent-picker scopes · case 05
The scope-match completion transition produces an incorrect observable state.
Cached autocomplete presentation: empty-result cache entries are treated as misses · case 01
The empty-hit completion transition produces an incorrect observable state.
Cached autocomplete presentation: empty-result cache entries are treated as misses · case 02
The empty-hit completion transition produces an incorrect observable state.
Cached autocomplete presentation: empty-result cache entries are treated as misses · case 03
The empty-hit completion transition produces an incorrect observable state.
Cached autocomplete presentation: empty-result cache entries are treated as misses · case 04
The empty-hit completion transition produces an incorrect observable state.
Cached autocomplete presentation: empty-result cache entries are treated as misses · case 05
The empty-hit completion transition produces an incorrect observable state.
Cached autocomplete presentation: cached results hide their revalidation state · case 01
The stale-badge completion transition produces an incorrect observable state.
Cached autocomplete presentation: cached results hide their revalidation state · case 02
The stale-badge completion transition produces an incorrect observable state.
Cached autocomplete presentation: cached results hide their revalidation state · case 03
The stale-badge completion transition produces an incorrect observable state.
Cached autocomplete presentation: cached results hide their revalidation state · case 04
The stale-badge completion transition produces an incorrect observable state.
Cached autocomplete presentation: cached results hide their revalidation state · case 05
The stale-badge completion transition produces an incorrect observable state.
Cached autocomplete presentation: presence of cached suggestions suppresses needed revalidation · case 01
The refresh completion transition produces an incorrect observable state.
Cached autocomplete presentation: presence of cached suggestions suppresses needed revalidation · case 02
The refresh completion transition produces an incorrect observable state.
Cached autocomplete presentation: presence of cached suggestions suppresses needed revalidation · case 03
The refresh completion transition produces an incorrect observable state.
Cached autocomplete presentation: presence of cached suggestions suppresses needed revalidation · case 04
The refresh completion transition produces an incorrect observable state.
Cached autocomplete presentation: presence of cached suggestions suppresses needed revalidation · case 05
The refresh completion transition produces an incorrect observable state.
Cached autocomplete presentation: previous query cached rows remain selectable after a miss · case 01
The miss-rows completion transition produces an incorrect observable state.
Cached autocomplete presentation: previous query cached rows remain selectable after a miss · case 02
The miss-rows completion transition produces an incorrect observable state.
Cached autocomplete presentation: previous query cached rows remain selectable after a miss · case 03
The miss-rows completion transition produces an incorrect observable state.
Cached autocomplete presentation: previous query cached rows remain selectable after a miss · case 04
The miss-rows completion transition produces an incorrect observable state.
Cached autocomplete presentation: previous query cached rows remain selectable after a miss · case 05
The miss-rows completion transition produces an incorrect observable state.
Cached autocomplete presentation: cache invalidation destroys the committed display label · case 01
The value-label completion transition produces an incorrect observable state.
Cached autocomplete presentation: cache invalidation destroys the committed display label · case 02
The value-label completion transition produces an incorrect observable state.
Cached autocomplete presentation: cache invalidation destroys the committed display label · case 03
The value-label completion transition produces an incorrect observable state.
Cached autocomplete presentation: cache invalidation destroys the committed display label · case 04
The value-label completion transition produces an incorrect observable state.
Cached autocomplete presentation: cache invalidation destroys the committed display label · case 05
The value-label completion transition produces an incorrect observable state.
Cached autocomplete presentation: cache-backed rows falsely claim the current network response provenance · case 01
The cache-provenance completion transition produces an incorrect observable state.
Cached autocomplete presentation: cache-backed rows falsely claim the current network response provenance · case 02
The cache-provenance completion transition produces an incorrect observable state.
Cached autocomplete presentation: cache-backed rows falsely claim the current network response provenance · case 03
The cache-provenance completion transition produces an incorrect observable state.
Cached autocomplete presentation: cache-backed rows falsely claim the current network response provenance · case 04
The cache-provenance completion transition produces an incorrect observable state.
Cached autocomplete presentation: cache-backed rows falsely claim the current network response provenance · case 05
The cache-provenance completion transition produces an incorrect observable state.
Cached autocomplete presentation: background refresh failure removes usable cache state · case 01
The refresh-error completion transition produces an incorrect observable state.
Cached autocomplete presentation: background refresh failure removes usable cache state · case 02
The refresh-error completion transition produces an incorrect observable state.
Cached autocomplete presentation: background refresh failure removes usable cache state · case 03
The refresh-error completion transition produces an incorrect observable state.
Cached autocomplete presentation: background refresh failure removes usable cache state · case 04
The refresh-error completion transition produces an incorrect observable state.
Cached autocomplete presentation: background refresh failure removes usable cache state · case 05
The refresh-error completion transition produces an incorrect observable state.
Federated suggestion sections: remote completion results displace the local-first section · case 01
The order completion transition produces an incorrect observable state.
Federated suggestion sections: remote completion results displace the local-first section · case 02
The order completion transition produces an incorrect observable state.
Federated suggestion sections: remote completion results displace the local-first section · case 03
The order completion transition produces an incorrect observable state.
Federated suggestion sections: remote completion results displace the local-first section · case 04
The order completion transition produces an incorrect observable state.
Federated suggestion sections: remote completion results displace the local-first section · case 05
The order completion transition produces an incorrect observable state.
Federated suggestion sections: same identifier from different completion sources collides · case 01
The identity completion transition produces an incorrect observable state.
Federated suggestion sections: same identifier from different completion sources collides · case 02
The identity completion transition produces an incorrect observable state.
Federated suggestion sections: same identifier from different completion sources collides · case 03
The identity completion transition produces an incorrect observable state.
Federated suggestion sections: same identifier from different completion sources collides · case 04
The identity completion transition produces an incorrect observable state.
Federated suggestion sections: same identifier from different completion sources collides · case 05
The identity completion transition produces an incorrect observable state.
Federated suggestion sections: empty recent-suggestions section keeps a dead header · case 01
The local-header completion transition produces an incorrect observable state.
Federated suggestion sections: empty recent-suggestions section keeps a dead header · case 02
The local-header completion transition produces an incorrect observable state.
Federated suggestion sections: empty recent-suggestions section keeps a dead header · case 03
The local-header completion transition produces an incorrect observable state.
Federated suggestion sections: empty recent-suggestions section keeps a dead header · case 04
The local-header completion transition produces an incorrect observable state.
Federated suggestion sections: empty recent-suggestions section keeps a dead header · case 05
The local-header completion transition produces an incorrect observable state.
Federated suggestion sections: remote section borrows the recent-history title · case 01
The remote-header completion transition produces an incorrect observable state.
Federated suggestion sections: remote section borrows the recent-history title · case 02
The remote-header completion transition produces an incorrect observable state.
Federated suggestion sections: remote section borrows the recent-history title · case 03
The remote-header completion transition produces an incorrect observable state.
Federated suggestion sections: remote section borrows the recent-history title · case 04
The remote-header completion transition produces an incorrect observable state.
Federated suggestion sections: remote section borrows the recent-history title · case 05
The remote-header completion transition produces an incorrect observable state.
Federated suggestion sections: pending remote query suppresses available local suggestions · case 01
The local-ready completion transition produces an incorrect observable state.
Federated suggestion sections: pending remote query suppresses available local suggestions · case 02
The local-ready completion transition produces an incorrect observable state.
Federated suggestion sections: pending remote query suppresses available local suggestions · case 03
The local-ready completion transition produces an incorrect observable state.
Federated suggestion sections: pending remote query suppresses available local suggestions · case 04
The local-ready completion transition produces an incorrect observable state.
Federated suggestion sections: pending remote query suppresses available local suggestions · case 05
The local-ready completion transition produces an incorrect observable state.
Federated suggestion sections: section header is accepted as a completion value · case 01
The header-commit completion transition produces an incorrect observable state.
Federated suggestion sections: section header is accepted as a completion value · case 02
The header-commit completion transition produces an incorrect observable state.
Federated suggestion sections: section header is accepted as a completion value · case 03
The header-commit completion transition produces an incorrect observable state.
Federated suggestion sections: section header is accepted as a completion value · case 04
The header-commit completion transition produces an incorrect observable state.
Federated suggestion sections: section header is accepted as a completion value · case 05
The header-commit completion transition produces an incorrect observable state.
Federated suggestion sections: suggestion count includes section headings · case 01
The count completion transition produces an incorrect observable state.
Federated suggestion sections: suggestion count includes section headings · case 02
The count completion transition produces an incorrect observable state.
Federated suggestion sections: suggestion count includes section headings · case 03
The count completion transition produces an incorrect observable state.
Federated suggestion sections: suggestion count includes section headings · case 04
The count completion transition produces an incorrect observable state.
Federated suggestion sections: suggestion count includes section headings · case 05
The count completion transition produces an incorrect observable state.
Federated suggestion sections: empty local section causes the entire picker to show no results · case 01
The source-empty completion transition produces an incorrect observable state.
Federated suggestion sections: empty local section causes the entire picker to show no results · case 02
The source-empty completion transition produces an incorrect observable state.
Federated suggestion sections: empty local section causes the entire picker to show no results · case 03
The source-empty completion transition produces an incorrect observable state.
Federated suggestion sections: empty local section causes the entire picker to show no results · case 04
The source-empty completion transition produces an incorrect observable state.
Federated suggestion sections: empty local section causes the entire picker to show no results · case 05
The source-empty completion transition produces an incorrect observable state.
Federated suggestion sections: remote pending marker is shown after the source completes · case 01
The remote-marker completion transition produces an incorrect observable state.
Federated suggestion sections: remote pending marker is shown after the source completes · case 02
The remote-marker completion transition produces an incorrect observable state.
Federated suggestion sections: remote pending marker is shown after the source completes · case 03
The remote-marker completion transition produces an incorrect observable state.
Federated suggestion sections: remote pending marker is shown after the source completes · case 04
The remote-marker completion transition produces an incorrect observable state.
Federated suggestion sections: remote pending marker is shown after the source completes · case 05
The remote-marker completion transition produces an incorrect observable state.
Federated suggestion sections: section offsets count the local header when the local section is absent · case 01
The remote-offset completion transition produces an incorrect observable state.
Federated suggestion sections: section offsets count the local header when the local section is absent · case 02
The remote-offset completion transition produces an incorrect observable state.
Federated suggestion sections: section offsets count the local header when the local section is absent · case 03
The remote-offset completion transition produces an incorrect observable state.
Federated suggestion sections: section offsets count the local header when the local section is absent · case 04
The remote-offset completion transition produces an incorrect observable state.
Federated suggestion sections: section offsets count the local header when the local section is absent · case 05
The remote-offset completion transition produces an incorrect observable state.
Unavailable suggestion presentation: unavailable suggestions disappear rather than explain rejection · case 01
The visible completion transition produces an incorrect observable state.
Unavailable suggestion presentation: unavailable suggestions disappear rather than explain rejection · case 02
The visible completion transition produces an incorrect observable state.
Unavailable suggestion presentation: unavailable suggestions disappear rather than explain rejection · case 03
The visible completion transition produces an incorrect observable state.
Unavailable suggestion presentation: unavailable suggestions disappear rather than explain rejection · case 04
The visible completion transition produces an incorrect observable state.
Unavailable suggestion presentation: unavailable suggestions disappear rather than explain rejection · case 05
The visible completion transition produces an incorrect observable state.
Unavailable suggestion presentation: automatic completion selects an unavailable first result · case 01
The eligible completion transition produces an incorrect observable state.
Unavailable suggestion presentation: automatic completion selects an unavailable first result · case 02
The eligible completion transition produces an incorrect observable state.
Unavailable suggestion presentation: automatic completion selects an unavailable first result · case 03
The eligible completion transition produces an incorrect observable state.
Unavailable suggestion presentation: automatic completion selects an unavailable first result · case 04
The eligible completion transition produces an incorrect observable state.
Unavailable suggestion presentation: automatic completion selects an unavailable first result · case 05
The eligible 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 ↗