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
One-shot request body replay refusal: A one-byte consumed body is admitted for replay · case 01
A one-byte consumed body is admitted for replay
One-shot request body replay refusal: A one-byte consumed body is admitted for replay · case 02
A one-byte consumed body is admitted for replay
One-shot request body replay refusal: A one-byte consumed body is admitted for replay · case 03
A one-byte consumed body is admitted for replay
One-shot request body replay refusal: A one-byte consumed body is admitted for replay · case 04
A one-byte consumed body is admitted for replay
One-shot request body replay refusal: A one-byte consumed body is admitted for replay · case 05
A one-byte consumed body is admitted for replay
One-shot request body replay refusal: Opening a new body manufactures retry eligibility before a failure · case 01
Opening a new body manufactures retry eligibility before a failure
One-shot request body replay refusal: Opening a new body manufactures retry eligibility before a failure · case 02
Opening a new body manufactures retry eligibility before a failure
One-shot request body replay refusal: Opening a new body manufactures retry eligibility before a failure · case 03
Opening a new body manufactures retry eligibility before a failure
One-shot request body replay refusal: Opening a new body manufactures retry eligibility before a failure · case 04
Opening a new body manufactures retry eligibility before a failure
One-shot request body replay refusal: Opening a new body manufactures retry eligibility before a failure · case 05
Opening a new body manufactures retry eligibility before a failure
One-shot request body replay refusal: Reopening after a completed transaction retains terminal state · case 01
Reopening after a completed transaction retains terminal state
One-shot request body replay refusal: Reopening after a completed transaction retains terminal state · case 02
Reopening after a completed transaction retains terminal state
One-shot request body replay refusal: Reopening after a completed transaction retains terminal state · case 03
Reopening after a completed transaction retains terminal state
One-shot request body replay refusal: Reopening after a completed transaction retains terminal state · case 04
Reopening after a completed transaction retains terminal state
One-shot request body replay refusal: Reopening after a completed transaction retains terminal state · case 05
Reopening after a completed transaction retains terminal state
One-shot request body replay refusal: Known-unprocessed transport failures are dropped from retry state · case 01
Known-unprocessed transport failures are dropped from retry state
One-shot request body replay refusal: Known-unprocessed transport failures are dropped from retry state · case 02
Known-unprocessed transport failures are dropped from retry state
One-shot request body replay refusal: Known-unprocessed transport failures are dropped from retry state · case 03
Known-unprocessed transport failures are dropped from retry state
One-shot request body replay refusal: Known-unprocessed transport failures are dropped from retry state · case 04
Known-unprocessed transport failures are dropped from retry state
One-shot request body replay refusal: Known-unprocessed transport failures are dropped from retry state · case 05
Known-unprocessed transport failures are dropped from retry state
One-shot request body replay refusal: Retry proceeds before a request body was opened · case 01
Retry proceeds before a request body was opened
One-shot request body replay refusal: Retry proceeds before a request body was opened · case 02
Retry proceeds before a request body was opened
One-shot request body replay refusal: Retry proceeds before a request body was opened · case 03
Retry proceeds before a request body was opened
One-shot request body replay refusal: Retry proceeds before a request body was opened · case 04
Retry proceeds before a request body was opened
One-shot request body replay refusal: Retry proceeds before a request body was opened · case 05
Retry proceeds before a request body was opened
One-shot request body replay refusal: Repeated retry commands create attempts without another failure · case 01
Repeated retry commands create attempts without another failure
One-shot request body replay refusal: Repeated retry commands create attempts without another failure · case 02
Repeated retry commands create attempts without another failure
One-shot request body replay refusal: Repeated retry commands create attempts without another failure · case 03
Repeated retry commands create attempts without another failure
One-shot request body replay refusal: Repeated retry commands create attempts without another failure · case 04
Repeated retry commands create attempts without another failure
One-shot request body replay refusal: Repeated retry commands create attempts without another failure · case 05
Repeated retry commands create attempts without another failure
One-shot request body replay refusal: A successful retry admission leaves its failure token reusable · case 01
A successful retry admission leaves its failure token reusable
One-shot request body replay refusal: A successful retry admission leaves its failure token reusable · case 02
A successful retry admission leaves its failure token reusable
One-shot request body replay refusal: A successful retry admission leaves its failure token reusable · case 03
A successful retry admission leaves its failure token reusable
One-shot request body replay refusal: A successful retry admission leaves its failure token reusable · case 04
A successful retry admission leaves its failure token reusable
One-shot request body replay refusal: A successful retry admission leaves its failure token reusable · case 05
A successful retry admission leaves its failure token reusable
One-shot request body replay refusal: A successful empty upload permits another retry · case 01
A successful empty upload permits another retry
One-shot request body replay refusal: A successful empty upload permits another retry · case 02
A successful empty upload permits another retry
One-shot request body replay refusal: A successful empty upload permits another retry · case 03
A successful empty upload permits another retry
One-shot request body replay refusal: A successful empty upload permits another retry · case 04
A successful empty upload permits another retry
One-shot request body replay refusal: A successful empty upload permits another retry · case 05
A successful empty upload permits another retry
Fresh body factories on retries: A retry factory observes a changed body recipe · case 01
A retry factory observes a changed body recipe
Fresh body factories on retries: A retry factory observes a changed body recipe · case 02
A retry factory observes a changed body recipe
Fresh body factories on retries: A retry factory observes a changed body recipe · case 03
A retry factory observes a changed body recipe
Fresh body factories on retries: A retry factory observes a changed body recipe · case 04
A retry factory observes a changed body recipe
Fresh body factories on retries: A retry factory observes a changed body recipe · case 05
A retry factory observes a changed body recipe
Fresh body factories on retries: A new request inherits spent factory invocations · case 01
A new request inherits spent factory invocations
Fresh body factories on retries: A new request inherits spent factory invocations · case 02
A new request inherits spent factory invocations
Fresh body factories on retries: A new request inherits spent factory invocations · case 03
A new request inherits spent factory invocations
Fresh body factories on retries: A new request inherits spent factory invocations · case 04
A new request inherits spent factory invocations
Fresh body factories on retries: A new request inherits spent factory invocations · case 05
A new request inherits spent factory invocations
Fresh body factories on retries: Opening a recipe exposes a stale previous body before invoking its factory · case 01
Opening a recipe exposes a stale previous body before invoking its factory
Fresh body factories on retries: Opening a recipe exposes a stale previous body before invoking its factory · case 02
Opening a recipe exposes a stale previous body before invoking its factory
Fresh body factories on retries: Opening a recipe exposes a stale previous body before invoking its factory · case 03
Opening a recipe exposes a stale previous body before invoking its factory
Fresh body factories on retries: Opening a recipe exposes a stale previous body before invoking its factory · case 04
Opening a recipe exposes a stale previous body before invoking its factory
Fresh body factories on retries: Opening a recipe exposes a stale previous body before invoking its factory · case 05
Opening a recipe exposes a stale previous body before invoking its factory
Fresh body factories on retries: An exhausted factory is invoked one extra time · case 01
An exhausted factory is invoked one extra time
Fresh body factories on retries: An exhausted factory is invoked one extra time · case 02
An exhausted factory is invoked one extra time
Fresh body factories on retries: An exhausted factory is invoked one extra time · case 03
An exhausted factory is invoked one extra time
Fresh body factories on retries: An exhausted factory is invoked one extra time · case 04
An exhausted factory is invoked one extra time
Fresh body factories on retries: An exhausted factory is invoked one extra time · case 05
An exhausted factory is invoked one extra time
Fresh body factories on retries: Retry builds the body from mutable current configuration · case 01
Retry builds the body from mutable current configuration
Fresh body factories on retries: Retry builds the body from mutable current configuration · case 02
Retry builds the body from mutable current configuration
Fresh body factories on retries: Retry builds the body from mutable current configuration · case 03
Retry builds the body from mutable current configuration
Fresh body factories on retries: Retry builds the body from mutable current configuration · case 04
Retry builds the body from mutable current configuration
Fresh body factories on retries: Retry builds the body from mutable current configuration · case 05
Retry builds the body from mutable current configuration
Fresh body factories on retries: A fresh retry body inherits a consumed cursor · case 01
A fresh retry body inherits a consumed cursor
Fresh body factories on retries: A fresh retry body inherits a consumed cursor · case 02
A fresh retry body inherits a consumed cursor
Fresh body factories on retries: A fresh retry body inherits a consumed cursor · case 03
A fresh retry body inherits a consumed cursor
Fresh body factories on retries: A fresh retry body inherits a consumed cursor · case 04
A fresh retry body inherits a consumed cursor
Fresh body factories on retries: A fresh retry body inherits a consumed cursor · case 05
A fresh retry body inherits a consumed cursor
Fresh body factories on retries: Factory calls fail to consume exactly one attempt allowance · case 01
Factory calls fail to consume exactly one attempt allowance
Fresh body factories on retries: Factory calls fail to consume exactly one attempt allowance · case 02
Factory calls fail to consume exactly one attempt allowance
Fresh body factories on retries: Factory calls fail to consume exactly one attempt allowance · case 03
Factory calls fail to consume exactly one attempt allowance
Fresh body factories on retries: Factory calls fail to consume exactly one attempt allowance · case 04
Factory calls fail to consume exactly one attempt allowance
Fresh body factories on retries: Factory calls fail to consume exactly one attempt allowance · case 05
Factory calls fail to consume exactly one attempt allowance
Fresh body factories on retries: Empty retry bodies are incorrectly marked inactive · case 01
Empty retry bodies are incorrectly marked inactive
Fresh body factories on retries: Empty retry bodies are incorrectly marked inactive · case 02
Empty retry bodies are incorrectly marked inactive
Fresh body factories on retries: Empty retry bodies are incorrectly marked inactive · case 03
Empty retry bodies are incorrectly marked inactive
Fresh body factories on retries: Empty retry bodies are incorrectly marked inactive · case 04
Empty retry bodies are incorrectly marked inactive
Fresh body factories on retries: Empty retry bodies are incorrectly marked inactive · case 05
Empty retry bodies are incorrectly marked inactive
Nested client retry ownership: Nested retry entry changes owner order or starts with a spent budget · case 01
Nested retry entry changes owner order or starts with a spent budget
Nested client retry ownership: Nested retry entry changes owner order or starts with a spent budget · case 02
Nested retry entry changes owner order or starts with a spent budget
Nested client retry ownership: Nested retry entry changes owner order or starts with a spent budget · case 03
Nested retry entry changes owner order or starts with a spent budget
Nested client retry ownership: Nested retry entry changes owner order or starts with a spent budget · case 04
Nested retry entry changes owner order or starts with a spent budget
Nested client retry ownership: Nested retry entry changes owner order or starts with a spent budget · case 05
Nested retry entry changes owner order or starts with a spent budget
Nested client retry ownership: Leaving a child discards the parent retry owner · case 01
Leaving a child discards the parent retry owner
Nested client retry ownership: Leaving a child discards the parent retry owner · case 02
Leaving a child discards the parent retry owner
Nested client retry ownership: Leaving a child discards the parent retry owner · case 03
Leaving a child discards the parent retry owner
Nested client retry ownership: Leaving a child discards the parent retry owner · case 04
Leaving a child discards the parent retry owner
Nested client retry ownership: Leaving a child discards the parent retry owner · case 05
Leaving a child discards the parent retry owner
Nested client retry ownership: Successful nested requests retain retry scopes · case 01
Successful nested requests retain retry scopes
Nested client retry ownership: Successful nested requests retain retry scopes · case 02
Successful nested requests retain retry scopes
Nested client retry ownership: Successful nested requests retain retry scopes · case 03
Successful nested requests retain retry scopes
Nested client retry ownership: Successful nested requests retain retry scopes · case 04
Successful nested requests retain retry scopes
Nested client retry ownership: Successful nested requests retain retry scopes · case 05
Successful nested requests retain retry scopes
Nested client retry ownership: A single root retry scope is misclassified unowned · case 01
A single root retry scope is misclassified unowned
Nested client retry ownership: A single root retry scope is misclassified unowned · case 02
A single root retry scope is misclassified unowned
Nested client retry ownership: A single root retry scope is misclassified unowned · case 03
A single root retry scope is misclassified unowned
Nested client retry ownership: A single root retry scope is misclassified unowned · case 04
A single root retry scope is misclassified unowned
Nested client retry ownership: A single root retry scope is misclassified unowned · case 05
A single root retry scope is misclassified unowned
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 ↗