ministackorg/ministack v1.1.22 on GitHub

What's Changed

Step Functions mock config — SFN_MOCK_CONFIG (or LOCALSTACK_SFN_MOCK_CONFIG) env var pointing to a JSON file that mocks Task state responses; fully compatible with the AWS Step Functions Local mock config format: MockedResponses with invocation indexing ("0", "1-2", etc.), #TestCaseName ARN suffix on StartExecution, Return and Throw per attempt. Contributed by @maxence-leblanc (issue)
Step Functions TestState API — execute a single state in isolation without creating a state machine; supports Pass, Task, Choice, Wait, Succeed, Fail state types; inspectionLevel (INFO/DEBUG) returns data transformation details; mock parameter for Task states with result/errorOutput; stateName to extract a state from a full definition; Retry/Catch evaluation with RETRIABLE/CAUGHT_ERROR status

CloudWatch Logs GetLogEvents pagination — nextForwardToken and nextBackwardToken now return the caller's token when at end of stream, preventing SDK clients from looping infinitely; token-based offset pagination now works correctly
EventBridge → Lambda crash — asyncio.run() inside the running event loop replaced with direct synchronous dispatch; PutEvents with Lambda targets no longer crashes
Step Functions StartSyncExecution crash — _call_lambda replaced asyncio.run() with direct _execute_function() call; sync Lambda Task states no longer crash
/_ministack/config endpoint hardened — now whitelists allowed config keys instead of accepting arbitrary __import__ + setattr on any module
S3 path traversal in persistence — _persist_object validates paths stay within DATA_DIR using os.path.realpath() prefix check; blocks ../ in S3 keys
Lambda worker reset — reset() now acquires lock and calls worker.kill() (cleans up temp dirs) instead of bare _proc.terminate()
DynamoDB _stream_records cleared on reset — stream records no longer accumulate unboundedly across resets
Lambda ESM position tracking cleared on reset — _kinesis_positions and _dynamodb_stream_positions now cleared on reset()
License — updated year 2026