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
Expose final response metadata without leaking intermediate representation state: redirected even return to origin · case 01
Expose final response metadata without leaking intermediate representation state: the redirected even return to origin branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: redirected even return to origin · case 02
Expose final response metadata without leaking intermediate representation state: the redirected even return to origin branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: redirected even return to origin · case 03
Expose final response metadata without leaking intermediate representation state: the redirected even return to origin branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: redirected even return to origin · case 04
Expose final response metadata without leaking intermediate representation state: the redirected even return to origin branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: redirected even return to origin · case 05
Expose final response metadata without leaking intermediate representation state: the redirected even return to origin branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: final body only · case 01
Expose final response metadata without leaking intermediate representation state: the final body only branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: final body only · case 02
Expose final response metadata without leaking intermediate representation state: the final body only branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: final body only · case 03
Expose final response metadata without leaking intermediate representation state: the final body only branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: final body only · case 04
Expose final response metadata without leaking intermediate representation state: the final body only branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: final body only · case 05
Expose final response metadata without leaking intermediate representation state: the final body only branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: content length final · case 01
Expose final response metadata without leaking intermediate representation state: the content length final branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: content length final · case 02
Expose final response metadata without leaking intermediate representation state: the content length final branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: content length final · case 03
Expose final response metadata without leaking intermediate representation state: the content length final branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: content length final · case 04
Expose final response metadata without leaking intermediate representation state: the content length final branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: content length final · case 05
Expose final response metadata without leaking intermediate representation state: the content length final branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: transport bytes all responses · case 01
Expose final response metadata without leaking intermediate representation state: the transport bytes all responses branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: transport bytes all responses · case 02
Expose final response metadata without leaking intermediate representation state: the transport bytes all responses branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: transport bytes all responses · case 03
Expose final response metadata without leaking intermediate representation state: the transport bytes all responses branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: transport bytes all responses · case 04
Expose final response metadata without leaking intermediate representation state: the transport bytes all responses branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: transport bytes all responses · case 05
Expose final response metadata without leaking intermediate representation state: the transport bytes all responses branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: history excludes final · case 01
Expose final response metadata without leaking intermediate representation state: the history excludes final branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: history excludes final · case 02
Expose final response metadata without leaking intermediate representation state: the history excludes final branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: history excludes final · case 03
Expose final response metadata without leaking intermediate representation state: the history excludes final branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: history excludes final · case 04
Expose final response metadata without leaking intermediate representation state: the history excludes final branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: history excludes final · case 05
Expose final response metadata without leaking intermediate representation state: the history excludes final branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: redirect response count · case 01
Expose final response metadata without leaking intermediate representation state: the redirect response count branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: redirect response count · case 02
Expose final response metadata without leaking intermediate representation state: the redirect response count branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: redirect response count · case 03
Expose final response metadata without leaking intermediate representation state: the redirect response count branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: redirect response count · case 04
Expose final response metadata without leaking intermediate representation state: the redirect response count branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: redirect response count · case 05
Expose final response metadata without leaking intermediate representation state: the redirect response count branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: failure from terminal status · case 01
Expose final response metadata without leaking intermediate representation state: the failure from terminal status branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: failure from terminal status · case 02
Expose final response metadata without leaking intermediate representation state: the failure from terminal status branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: failure from terminal status · case 03
Expose final response metadata without leaking intermediate representation state: the failure from terminal status branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: failure from terminal status · case 04
Expose final response metadata without leaking intermediate representation state: the failure from terminal status branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: failure from terminal status · case 05
Expose final response metadata without leaking intermediate representation state: the failure from terminal status branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: first hop record · case 01
Expose final response metadata without leaking intermediate representation state: the first hop record branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: first hop record · case 02
Expose final response metadata without leaking intermediate representation state: the first hop record branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: first hop record · case 03
Expose final response metadata without leaking intermediate representation state: the first hop record branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: first hop record · case 04
Expose final response metadata without leaking intermediate representation state: the first hop record branch emits an incorrect decision.
Expose final response metadata without leaking intermediate representation state: first hop record · case 05
Expose final response metadata without leaking intermediate representation state: the first hop record branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: scheme key · case 01
Partition redirect cache entries by their declared request dimensions: the scheme key branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: scheme key · case 02
Partition redirect cache entries by their declared request dimensions: the scheme key branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: scheme key · case 03
Partition redirect cache entries by their declared request dimensions: the scheme key branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: scheme key · case 04
Partition redirect cache entries by their declared request dimensions: the scheme key branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: scheme key · case 05
Partition redirect cache entries by their declared request dimensions: the scheme key branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: host normalization · case 01
Partition redirect cache entries by their declared request dimensions: the host normalization branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: host normalization · case 02
Partition redirect cache entries by their declared request dimensions: the host normalization branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: host normalization · case 03
Partition redirect cache entries by their declared request dimensions: the host normalization branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: host normalization · case 04
Partition redirect cache entries by their declared request dimensions: the host normalization branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: host normalization · case 05
Partition redirect cache entries by their declared request dimensions: the host normalization branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: nondefault port · case 01
Partition redirect cache entries by their declared request dimensions: the nondefault port branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: nondefault port · case 02
Partition redirect cache entries by their declared request dimensions: the nondefault port branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: nondefault port · case 03
Partition redirect cache entries by their declared request dimensions: the nondefault port branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: nondefault port · case 04
Partition redirect cache entries by their declared request dimensions: the nondefault port branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: nondefault port · case 05
Partition redirect cache entries by their declared request dimensions: the nondefault port branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: head isolated from get · case 01
Partition redirect cache entries by their declared request dimensions: the head isolated from get branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: head isolated from get · case 02
Partition redirect cache entries by their declared request dimensions: the head isolated from get branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: head isolated from get · case 03
Partition redirect cache entries by their declared request dimensions: the head isolated from get branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: head isolated from get · case 04
Partition redirect cache entries by their declared request dimensions: the head isolated from get branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: head isolated from get · case 05
Partition redirect cache entries by their declared request dimensions: the head isolated from get branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: case sensitive path key · case 01
Partition redirect cache entries by their declared request dimensions: the case sensitive path key branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: case sensitive path key · case 02
Partition redirect cache entries by their declared request dimensions: the case sensitive path key branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: case sensitive path key · case 03
Partition redirect cache entries by their declared request dimensions: the case sensitive path key branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: case sensitive path key · case 04
Partition redirect cache entries by their declared request dimensions: the case sensitive path key branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: case sensitive path key · case 05
Partition redirect cache entries by their declared request dimensions: the case sensitive path key branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: query order and duplicates · case 01
Partition redirect cache entries by their declared request dimensions: the query order and duplicates branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: query order and duplicates · case 02
Partition redirect cache entries by their declared request dimensions: the query order and duplicates branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: query order and duplicates · case 03
Partition redirect cache entries by their declared request dimensions: the query order and duplicates branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: query order and duplicates · case 04
Partition redirect cache entries by their declared request dimensions: the query order and duplicates branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: query order and duplicates · case 05
Partition redirect cache entries by their declared request dimensions: the query order and duplicates branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: empty value query presence · case 01
Partition redirect cache entries by their declared request dimensions: the empty value query presence branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: empty value query presence · case 02
Partition redirect cache entries by their declared request dimensions: the empty value query presence branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: empty value query presence · case 03
Partition redirect cache entries by their declared request dimensions: the empty value query presence branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: empty value query presence · case 04
Partition redirect cache entries by their declared request dimensions: the empty value query presence branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: empty value query presence · case 05
Partition redirect cache entries by their declared request dimensions: the empty value query presence branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: partition key · case 01
Partition redirect cache entries by their declared request dimensions: the partition key branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: partition key · case 02
Partition redirect cache entries by their declared request dimensions: the partition key branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: partition key · case 03
Partition redirect cache entries by their declared request dimensions: the partition key branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: partition key · case 04
Partition redirect cache entries by their declared request dimensions: the partition key branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: partition key · case 05
Partition redirect cache entries by their declared request dimensions: the partition key branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: vary value order · case 01
Partition redirect cache entries by their declared request dimensions: the vary value order branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: vary value order · case 02
Partition redirect cache entries by their declared request dimensions: the vary value order branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: vary value order · case 03
Partition redirect cache entries by their declared request dimensions: the vary value order branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: vary value order · case 04
Partition redirect cache entries by their declared request dimensions: the vary value order branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: vary value order · case 05
Partition redirect cache entries by their declared request dimensions: the vary value order branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: vary empty value sentinel · case 01
Partition redirect cache entries by their declared request dimensions: the vary empty value sentinel branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: vary empty value sentinel · case 02
Partition redirect cache entries by their declared request dimensions: the vary empty value sentinel branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: vary empty value sentinel · case 03
Partition redirect cache entries by their declared request dimensions: the vary empty value sentinel branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: vary empty value sentinel · case 04
Partition redirect cache entries by their declared request dimensions: the vary empty value sentinel branch emits an incorrect decision.
Partition redirect cache entries by their declared request dimensions: vary empty value sentinel · case 05
Partition redirect cache entries by their declared request dimensions: the vary empty value sentinel branch emits an incorrect decision.
Cache redirects only under the stipulated freshness and response policy: freshness after age · case 01
Cache redirects only under the stipulated freshness and response policy: the freshness after age branch emits an incorrect decision.
Cache redirects only under the stipulated freshness and response policy: freshness after age · case 02
Cache redirects only under the stipulated freshness and response policy: the freshness after age branch emits an incorrect decision.
Cache redirects only under the stipulated freshness and response policy: freshness after age · case 03
Cache redirects only under the stipulated freshness and response policy: the freshness after age branch emits an incorrect decision.
Cache redirects only under the stipulated freshness and response policy: freshness after age · case 04
Cache redirects only under the stipulated freshness and response policy: the freshness after age branch emits an incorrect decision.
Cache redirects only under the stipulated freshness and response policy: freshness after age · case 05
Cache redirects only under the stipulated freshness and response policy: the freshness after age branch emits an incorrect decision.
Cache redirects only under the stipulated freshness and response policy: permanent class · case 01
Cache redirects only under the stipulated freshness and response policy: the permanent class branch emits an incorrect decision.
Cache redirects only under the stipulated freshness and response policy: permanent class · case 02
Cache redirects only under the stipulated freshness and response policy: the permanent class branch emits an incorrect decision.
Cache redirects only under the stipulated freshness and response policy: permanent class · case 03
Cache redirects only under the stipulated freshness and response policy: the permanent class branch emits an incorrect decision.
Cache redirects only under the stipulated freshness and response policy: permanent class · case 04
Cache redirects only under the stipulated freshness and response policy: the permanent class branch emits an incorrect decision.
Cache redirects only under the stipulated freshness and response policy: permanent class · case 05
Cache redirects only under the stipulated freshness and response policy: the permanent class branch emits an incorrect decision.
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 ↗