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-29801

Expect-Continue request retry phases: Start size violates retry transition semantics · case 01

Start size violates retry transition semantics

HTTP retries● Open access↗FA-29802

Expect-Continue request retry phases: Start size violates retry transition semantics · case 02

Start size violates retry transition semantics

HTTP retries◈ Members↗FA-29803

Expect-Continue request retry phases: Start size violates retry transition semantics · case 03

Start size violates retry transition semantics

HTTP retries◈ Members↗FA-29804

Expect-Continue request retry phases: Start size violates retry transition semantics · case 04

Start size violates retry transition semantics

HTTP retries◈ Members↗FA-29805

Expect-Continue request retry phases: Start size violates retry transition semantics · case 05

Start size violates retry transition semantics

HTTP retries◈ Members↗FA-29806

Expect-Continue request retry phases: Start consumption violates retry transition semantics · case 01

Start consumption violates retry transition semantics

HTTP retries● Open access↗FA-29807

Expect-Continue request retry phases: Start consumption violates retry transition semantics · case 02

Start consumption violates retry transition semantics

HTTP retries◈ Members↗FA-29808

Expect-Continue request retry phases: Start consumption violates retry transition semantics · case 03

Start consumption violates retry transition semantics

HTTP retries◈ Members↗FA-29809

Expect-Continue request retry phases: Start consumption violates retry transition semantics · case 04

Start consumption violates retry transition semantics

HTTP retries◈ Members↗FA-29810

Expect-Continue request retry phases: Start consumption violates retry transition semantics · case 05

Start consumption violates retry transition semantics

HTTP retries◈ Members↗FA-29811

Expect-Continue request retry phases: Permission code violates retry transition semantics · case 01

Permission code violates retry transition semantics

HTTP retries● Open access↗FA-29812

Expect-Continue request retry phases: Permission code violates retry transition semantics · case 02

Permission code violates retry transition semantics

HTTP retries◈ Members↗FA-29813

Expect-Continue request retry phases: Permission code violates retry transition semantics · case 03

Permission code violates retry transition semantics

HTTP retries◈ Members↗FA-29814

Expect-Continue request retry phases: Permission code violates retry transition semantics · case 04

Permission code violates retry transition semantics

HTTP retries◈ Members↗FA-29815

Expect-Continue request retry phases: Permission code violates retry transition semantics · case 05

Permission code violates retry transition semantics

HTTP retries◈ Members↗FA-29816

Expect-Continue request retry phases: Permission phase violates retry transition semantics · case 01

Permission phase violates retry transition semantics

HTTP retries● Open access↗FA-29817

Expect-Continue request retry phases: Permission phase violates retry transition semantics · case 02

Permission phase violates retry transition semantics

HTTP retries◈ Members↗FA-29818

Expect-Continue request retry phases: Permission phase violates retry transition semantics · case 03

Permission phase violates retry transition semantics

HTTP retries◈ Members↗FA-29819

Expect-Continue request retry phases: Permission phase violates retry transition semantics · case 04

Permission phase violates retry transition semantics

HTTP retries◈ Members↗FA-29820

Expect-Continue request retry phases: Permission phase violates retry transition semantics · case 05

Permission phase violates retry transition semantics

HTTP retries◈ Members↗FA-29821

Expect-Continue request retry phases: Wait expiry violates retry transition semantics · case 01

Wait expiry violates retry transition semantics

HTTP retries● Open access↗FA-29822

Expect-Continue request retry phases: Wait expiry violates retry transition semantics · case 02

Wait expiry violates retry transition semantics

HTTP retries◈ Members↗FA-29823

Expect-Continue request retry phases: Wait expiry violates retry transition semantics · case 03

Wait expiry violates retry transition semantics

HTTP retries◈ Members↗FA-29824

Expect-Continue request retry phases: Wait expiry violates retry transition semantics · case 04

Wait expiry violates retry transition semantics

HTTP retries◈ Members↗FA-29825

Expect-Continue request retry phases: Wait expiry violates retry transition semantics · case 05

Wait expiry violates retry transition semantics

HTTP retries◈ Members↗FA-29826

Expect-Continue request retry phases: Send gate violates retry transition semantics · case 01

Send gate violates retry transition semantics

HTTP retries● Open access↗FA-29827

Expect-Continue request retry phases: Send gate violates retry transition semantics · case 02

Send gate violates retry transition semantics

HTTP retries◈ Members↗FA-29828

Expect-Continue request retry phases: Send gate violates retry transition semantics · case 03

Send gate violates retry transition semantics

HTTP retries◈ Members↗FA-29829

Expect-Continue request retry phases: Send gate violates retry transition semantics · case 04

Send gate violates retry transition semantics

HTTP retries◈ Members↗FA-29830

Expect-Continue request retry phases: Send gate violates retry transition semantics · case 05

Send gate violates retry transition semantics

HTTP retries◈ Members↗FA-29831

Expect-Continue request retry phases: Remaining body violates retry transition semantics · case 01

Remaining body violates retry transition semantics

HTTP retries● Open access↗FA-29832

Expect-Continue request retry phases: Remaining body violates retry transition semantics · case 02

Remaining body violates retry transition semantics

HTTP retries◈ Members↗FA-29833

Expect-Continue request retry phases: Remaining body violates retry transition semantics · case 03

Remaining body violates retry transition semantics

HTTP retries◈ Members↗FA-29834

Expect-Continue request retry phases: Remaining body violates retry transition semantics · case 04

Remaining body violates retry transition semantics

HTTP retries◈ Members↗FA-29835

Expect-Continue request retry phases: Remaining body violates retry transition semantics · case 05

Remaining body violates retry transition semantics

HTTP retries◈ Members↗FA-29836

Expect-Continue request retry phases: Send accumulation violates retry transition semantics · case 01

Send accumulation violates retry transition semantics

HTTP retries● Open access↗FA-29837

Expect-Continue request retry phases: Send accumulation violates retry transition semantics · case 02

Send accumulation violates retry transition semantics

HTTP retries◈ Members↗FA-29838

Expect-Continue request retry phases: Send accumulation violates retry transition semantics · case 03

Send accumulation violates retry transition semantics

HTTP retries◈ Members↗FA-29839

Expect-Continue request retry phases: Send accumulation violates retry transition semantics · case 04

Send accumulation violates retry transition semantics

HTTP retries◈ Members↗FA-29840

Expect-Continue request retry phases: Send accumulation violates retry transition semantics · case 05

Send accumulation violates retry transition semantics

HTTP retries◈ Members↗FA-29841

Expect-Continue request retry phases: Final stops violates retry transition semantics · case 01

Final stops violates retry transition semantics

HTTP retries● Open access↗FA-29842

Expect-Continue request retry phases: Final stops violates retry transition semantics · case 02

Final stops violates retry transition semantics

HTTP retries◈ Members↗FA-29843

Expect-Continue request retry phases: Final stops violates retry transition semantics · case 03

Final stops violates retry transition semantics

HTTP retries◈ Members↗FA-29844

Expect-Continue request retry phases: Final stops violates retry transition semantics · case 04

Final stops violates retry transition semantics

HTTP retries◈ Members↗FA-29845

Expect-Continue request retry phases: Final stops violates retry transition semantics · case 05

Final stops violates retry transition semantics

HTTP retries◈ Members↗FA-29846

Expect-Continue request retry phases: Final response violates retry transition semantics · case 01

Final response violates retry transition semantics

HTTP retries● Open access↗FA-29847

Expect-Continue request retry phases: Final response violates retry transition semantics · case 02

Final response violates retry transition semantics

HTTP retries◈ Members↗FA-29848

Expect-Continue request retry phases: Final response violates retry transition semantics · case 03

Final response violates retry transition semantics

HTTP retries◈ Members↗FA-29849

Expect-Continue request retry phases: Final response violates retry transition semantics · case 04

Final response violates retry transition semantics

HTTP retries◈ Members↗FA-29850

Expect-Continue request retry phases: Final response violates retry transition semantics · case 05

Final response violates retry transition semantics

HTTP retries◈ Members↗FA-29851

Expect-Continue request retry phases: Failure terminal violates retry transition semantics · case 01

Failure terminal violates retry transition semantics

HTTP retries● Open access↗FA-29852

Expect-Continue request retry phases: Failure terminal violates retry transition semantics · case 02

Failure terminal violates retry transition semantics

HTTP retries◈ Members↗FA-29853

Expect-Continue request retry phases: Failure terminal violates retry transition semantics · case 03

Failure terminal violates retry transition semantics

HTTP retries◈ Members↗FA-29854

Expect-Continue request retry phases: Failure terminal violates retry transition semantics · case 04

Failure terminal violates retry transition semantics

HTTP retries◈ Members↗FA-29855

Expect-Continue request retry phases: Failure terminal violates retry transition semantics · case 05

Failure terminal violates retry transition semantics

HTTP retries◈ Members↗FA-29856

Expect-Continue request retry phases: Body ambiguity violates retry transition semantics · case 01

Body ambiguity violates retry transition semantics

HTTP retries● Open access↗FA-29857

Expect-Continue request retry phases: Body ambiguity violates retry transition semantics · case 02

Body ambiguity violates retry transition semantics

HTTP retries◈ Members↗FA-29858

Expect-Continue request retry phases: Body ambiguity violates retry transition semantics · case 03

Body ambiguity violates retry transition semantics

HTTP retries◈ Members↗FA-29859

Expect-Continue request retry phases: Body ambiguity violates retry transition semantics · case 04

Body ambiguity violates retry transition semantics

HTTP retries◈ Members↗FA-29860

Expect-Continue request retry phases: Body ambiguity violates retry transition semantics · case 05

Body ambiguity violates retry transition semantics

HTTP retries◈ Members↗FA-29861

Expect-Continue request retry phases: Retry gate violates retry transition semantics · case 01

Retry gate violates retry transition semantics

HTTP retries● Open access↗FA-29862

Expect-Continue request retry phases: Retry gate violates retry transition semantics · case 02

Retry gate violates retry transition semantics

HTTP retries◈ Members↗FA-29863

Expect-Continue request retry phases: Retry gate violates retry transition semantics · case 03

Retry gate violates retry transition semantics

HTTP retries◈ Members↗FA-29864

Expect-Continue request retry phases: Retry gate violates retry transition semantics · case 04

Retry gate violates retry transition semantics

HTTP retries◈ Members↗FA-29865

Expect-Continue request retry phases: Retry gate violates retry transition semantics · case 05

Retry gate violates retry transition semantics

HTTP retries◈ Members↗FA-29866

Expect-Continue request retry phases: Retry handshake violates retry transition semantics · case 01

Retry handshake violates retry transition semantics

HTTP retries● Open access↗FA-29867

Expect-Continue request retry phases: Retry handshake violates retry transition semantics · case 02

Retry handshake violates retry transition semantics

HTTP retries◈ Members↗FA-29868

Expect-Continue request retry phases: Retry handshake violates retry transition semantics · case 03

Retry handshake violates retry transition semantics

HTTP retries◈ Members↗FA-29869

Expect-Continue request retry phases: Retry handshake violates retry transition semantics · case 04

Retry handshake violates retry transition semantics

HTTP retries◈ Members↗FA-29870

Expect-Continue request retry phases: Retry handshake violates retry transition semantics · case 05

Retry handshake violates retry transition semantics

HTTP retries◈ Members↗FA-29871

Expect-Continue request retry phases: Initial handshake violates retry transition semantics · case 01

Initial handshake violates retry transition semantics

HTTP retries● Open access↗FA-29872

Expect-Continue request retry phases: Initial handshake violates retry transition semantics · case 02

Initial handshake violates retry transition semantics

HTTP retries◈ Members↗FA-29873

Expect-Continue request retry phases: Initial handshake violates retry transition semantics · case 03

Initial handshake violates retry transition semantics

HTTP retries◈ Members↗FA-29874

Expect-Continue request retry phases: Initial handshake violates retry transition semantics · case 04

Initial handshake violates retry transition semantics

HTTP retries◈ Members↗FA-29875

Expect-Continue request retry phases: Initial handshake violates retry transition semantics · case 05

Initial handshake violates retry transition semantics

HTTP retries◈ Members↗FA-29876

Retry budget reservation lifecycle: Initial fill violates retry transition semantics · case 01

Initial fill violates retry transition semantics

HTTP retries● Open access↗FA-29877

Retry budget reservation lifecycle: Initial fill violates retry transition semantics · case 02

Initial fill violates retry transition semantics

HTTP retries◈ Members↗FA-29878

Retry budget reservation lifecycle: Initial fill violates retry transition semantics · case 03

Initial fill violates retry transition semantics

HTTP retries◈ Members↗FA-29879

Retry budget reservation lifecycle: Initial fill violates retry transition semantics · case 04

Initial fill violates retry transition semantics

HTTP retries◈ Members↗FA-29880

Retry budget reservation lifecycle: Initial fill violates retry transition semantics · case 05

Initial fill violates retry transition semantics

HTTP retries◈ Members↗FA-29881

Retry budget reservation lifecycle: Configure clears violates retry transition semantics · case 01

Configure clears violates retry transition semantics

HTTP retries● Open access↗FA-29882

Retry budget reservation lifecycle: Configure clears violates retry transition semantics · case 02

Configure clears violates retry transition semantics

HTTP retries◈ Members↗FA-29883

Retry budget reservation lifecycle: Configure clears violates retry transition semantics · case 03

Configure clears violates retry transition semantics

HTTP retries◈ Members↗FA-29884

Retry budget reservation lifecycle: Configure clears violates retry transition semantics · case 04

Configure clears violates retry transition semantics

HTTP retries◈ Members↗FA-29885

Retry budget reservation lifecycle: Configure clears violates retry transition semantics · case 05

Configure clears violates retry transition semantics

HTTP retries◈ Members↗FA-29886

Retry budget reservation lifecycle: Held idempotency violates retry transition semantics · case 01

Held idempotency violates retry transition semantics

HTTP retries● Open access↗FA-29887

Retry budget reservation lifecycle: Held idempotency violates retry transition semantics · case 02

Held idempotency violates retry transition semantics

HTTP retries◈ Members↗FA-29888

Retry budget reservation lifecycle: Held idempotency violates retry transition semantics · case 03

Held idempotency violates retry transition semantics

HTTP retries◈ Members↗FA-29889

Retry budget reservation lifecycle: Held idempotency violates retry transition semantics · case 04

Held idempotency violates retry transition semantics

HTTP retries◈ Members↗FA-29890

Retry budget reservation lifecycle: Held idempotency violates retry transition semantics · case 05

Held idempotency violates retry transition semantics

HTTP retries◈ Members↗FA-29891

Retry budget reservation lifecycle: Zero denial violates retry transition semantics · case 01

Zero denial violates retry transition semantics

HTTP retries● Open access↗FA-29892

Retry budget reservation lifecycle: Zero denial violates retry transition semantics · case 02

Zero denial violates retry transition semantics

HTTP retries◈ Members↗FA-29893

Retry budget reservation lifecycle: Zero denial violates retry transition semantics · case 03

Zero denial violates retry transition semantics

HTTP retries◈ Members↗FA-29894

Retry budget reservation lifecycle: Zero denial violates retry transition semantics · case 04

Zero denial violates retry transition semantics

HTTP retries◈ Members↗FA-29895

Retry budget reservation lifecycle: Zero denial violates retry transition semantics · case 05

Zero denial violates retry transition semantics

HTTP retries◈ Members↗FA-29896

Retry budget reservation lifecycle: Reserve charge violates retry transition semantics · case 01

Reserve charge violates retry transition semantics

HTTP retries● Open access↗FA-29897

Retry budget reservation lifecycle: Reserve charge violates retry transition semantics · case 02

Reserve charge violates retry transition semantics

HTTP retries◈ Members↗FA-29898

Retry budget reservation lifecycle: Reserve charge violates retry transition semantics · case 03

Reserve charge violates retry transition semantics

HTTP retries◈ Members↗FA-29899

Retry budget reservation lifecycle: Reserve charge violates retry transition semantics · case 04

Reserve charge violates retry transition semantics

HTTP retries◈ Members↗FA-29900

Retry budget reservation lifecycle: Reserve charge violates retry transition semantics · case 05

Reserve charge violates retry transition semantics

HTTP retries◈ 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 ↗