Layer 2 — application architecture · 1,820 documents
| ID | Document | Source |
|---|---|---|
| app_invariants__dab5879561e77b9b | INVARIANT: Database schema version must be monotonically non-decreasing or explicitly validated against a minimal compatible version, disallowing direct downgrades without explicit migration… | — |
| app_invariants__e2fb8483e1142fb9 | INVARIANT: Any operation that leads to irreversible data loss or significant system state alteration must require explicit, interactive user confirmation unless explicitly overridden. SHADOW:… | — |
| app_invariants__a58ddb47e5e47ada | INVARIANT: All synchronous external command executions must be constrained by a context-bound timeout to prevent indefinite resource consumption or blocking due to unresponsive external… | — |
| app_invariants__ecfae248e3c7cc7a | INVARIANT: Failures in non-critical external service interactions (e.g., sending notifications, fetching external reports) must be handled non-fatally, ensuring the calling process completes… | — |
| app_invariants__50eaf1f5fff495aa | INVARIANT: If schema versioning is enabled, the designated schema version and update history tables must be created and accessible before any schema application or upgrade. SHADOW: Establishing a… | — |
| app_invariants__36ce7313b27566ba | INVARIANT: Administrative tool gRPC client connections must support mutual TLS configuration (client cert, CA, server name verification) to establish authenticated and encrypted communication… | — |
| app_invariants__e512045278eef45f | INVARIANT: Opaque, encoded payload data presented to human operators must be automatically or optionally decoded and formatted for readability, preserving content integrity while enhancing… | — |
| app_invariants__cf7b1f0cb9758182 | INVARIANT: Database connections must be explicitly closed upon completion of operations or deferred to ensure resource release and prevent connection leaks. SHADOW: Preventing resource exhaustion… | — |
| app_invariants__2e1f0543cba6f0ca | INVARIANT: Time-based filter inputs provided via CLI must be parsed through a well-defined, multi-format aware logic to ensure consistent and deterministic interpretation across different user… | — |
| app_invariants__e6551fcb1048ad68 | INVARIANT: Operations on Dead Letter Queues (DLQs) involving reading, purging, or merging messages must implement pagination to prevent unbounded memory usage and resource contention during… | — |
| app_invariants__69fb79482da4bd81 | INVARIANT: All defined history task categories must be centrally registered and retrievable by unique identifiers or names to ensure consistent routing and deserialization across the system. SHADOW:… | — |
| app_invariants__57d9d379e8ad09ee | INVARIANT: Cross-Cluster Conflict Resolution via Vector Clock Versioning SHADOW: In a multi-active replication topology, concurrent writes to the same workflow in different clusters must resolve… | — |
| app_invariants__aa0a4a44262799c5 | INVARIANT: Hierarchical State Machine Transition Guard SHADOW: State transitions within the generic HSM framework must be atomic and valid. The transition logic enforces that a mutation can only… | — |
| app_invariants__c3731923ceb1028f | INVARIANT: Feedback-Loop Replication Stream Flow Control SHADOW: To prevent the active cluster from overwhelming the passive cluster during replication, the receiver monitors its processing lag and… | — |
| app_invariants__abe0b1e9484e8528 | INVARIANT: Workflow ID Uniqueness and Policy Enforcement SHADOW: Ensures that Workflow IDs are unique within a namespace/scope according to configurable policies (Reuse or Conflict). This logic… | — |
| app_invariants__726ca67bc935b8e9 | INVARIANT: Multi-Branch Conflict Resolution Transaction SHADOW: When resolving a split-brain scenario in workflow history, the system must atomically reset the current branch to a previous snapshot… | — |
| app_invariants__3d7a7b210a175f8c | INVARIANT: History Branch LCA (Lowest Common Ancestor) Detection SHADOW: To correctly merge or branch history events from different clusters, the system must identify the exact point where two… | — |
| app_invariants__0d826946e410f04b | INVARIANT: Optimistic Versioned Transition Guard SHADOW: The CHASM framework enforces linearizability of component state mutations by validating a 'VersionedTransition' token against the current… | — |
| app_invariants__3b588a0b227cc267 | INVARIANT: High-Water Mark Action Generation SHADOW: The Scheduler Generator utilizes a monotonic 'LastProcessedTime' cursor to track the progress of schedule evaluation. Actions are exclusively… | — |
| app_invariants__781e3572297ffeea | INVARIANT: Durable Saga for Distributed Resource Reclamation SHADOW: Namespace deletion is orchestrated as a durable Temporal Workflow ('DeleteNamespaceWorkflow'). This encapsulates the distributed… | — |
| app_invariants__ca0e53e0be37a305 | INVARIANT: Partitioned Lifecycle Rate Limiting SHADOW: The 'PerNamespaceWorkerManager' implements a dedicated rate limiter (`startLimiter`) for the initialization and restart of namespace-specific… | — |
| app_invariants__dd580bca3adb298f | INVARIANT: Topology Conflict Token Validation SHADOW: Modifications to the Worker Deployment versioning topology require a 'conflictToken'. This token acts as a localized consensus mechanism,… | — |
| app_invariants__4c66b4a58f34e3dd | INVARIANT: StreamMock actions must be consumed in sequence SHADOW: Failure to consume enqueued actions (like next items or waits) before the StreamMock is dropped will result in a panic, ensuring… | — |
| app_invariants__fa1bc946498f5059 | INVARIANT: Mock stream polling must clear pending sleep states SHADOW: After a sleep future completes and the task is woken, the `sleep` state must be cleared (`take()`) to prevent incorrect pending… | — |
| app_invariants__b83b3139f5c6e989 | INVARIANT: Mock task wake notifications must be tracked SHADOW: The system tracks wake notifications to verify if a future/task responded correctly to an external wake-up signal, crucial for… | — |
| app_invariants__2d49091c6cd3b9f6 | INVARIANT: Mock task context must be entered to poll futures SHADOW: Polling futures requires a valid `Context`, which is provided by entering the mock task's context. This ensures that polling… | — |
| app_invariants__fe12b0b4d56bde61 | INVARIANT: Mock I/O operations must precisely match expected actions SHADOW: The `Mock` I/O layer enforces strict adherence to its predefined sequence of `read` and `write` actions, panicking on any… | — |
| app_invariants__c5459e47c095f7ea | INVARIANT: Mock I/O actions must be consumed or returned to pending SHADOW: The `Mock` I/O layer must either process an action to completion or return `Poll::Pending` if the action requires waiting… | — |
| app_invariants__47c68c420913ba44 | INVARIANT: Mock I/O sleep actions must be handled by scheduling a wake-up SHADOW: When a `Wait` action is encountered, a `tokio::time::sleep_until` future is created and the polling context's waker… | — |
| app_invariants__ec1990a8444ee406 | INVARIANT: Mock IO operations must not leave incomplete state SHADOW: The `Drop` implementation for `Mock` asserts that all enqueued `Read` and `Write` actions must have their data buffers fully… | — |
| app_invariants__87e60f5db35f95ab | INVARIANT: A line delimited message buffer must be managed such that its capacity scales with expected message sizes to prevent buffer overflows or excessive reallocations during encoding. SHADOW:… | — |
| app_invariants__fcb6df0782a1798b | INVARIANT: The write buffer's capacity must be manageable and bounded by a configurable backpressure boundary to prevent unbounded memory consumption under heavy load. SHADOW: FramedWrite maintains… | — |
| app_invariants__1813c09df0cfa71f | INVARIANT: The read buffer must be managed to anticipate future frame data, potentially reserving additional capacity beyond the current partial frame to minimize reallocations. SHADOW: The… | — |
| app_invariants__722afe0609adb8d2 | INVARIANT: LIFO Execution of Runtime Context Guards SHADOW: The thread-local runtime context operates as a strictly ordered stack. Dropping an EnterGuard out of order corrupts the handle references… | — |
| app_invariants__c51e4a1645934806 | INVARIANT: Strict Monotonic Task Completion Bit SHADOW: Once the COMPLETE bit is set in the Task State bitmask, it is physically impossible to unset. This establishes an unbreakable barrier for the… | — |
| app_invariants__0be38a8dd7cd2e4a | INVARIANT: Cooperative Budget-Driven Yielding SHADOW: The system enforces a finite 'budget' for every task poll. Every IO operation or sub-task progression must decrement this budget; once… | — |
| app_invariants__593004371c311a96 | INVARIANT: Windows Socket Hijacking Neutralization SHADOW: On Windows, SO_REUSEADDR allows a process to steal an existing port even if it is actively in use. The library must explicitly ignore this… | — |
| app_invariants__57c08f5ef2938a35 | INVARIANT: SeqCst Unpark Release-Acquire Barrier SHADOW: The transition from EMPTY to NOTIFIED in the thread parker must use SeqCst swapping. This ensures that any writes made by the unparking… | — |
| app_invariants__1b7fb9b24d59dd59 | INVARIANT: Heuristic Boxing of Large Futures SHADOW: The runtime enforces a BOX_FUTURE_THRESHOLD (2KB in debug, 16KB in release). Any future exceeding this size is automatically moved to the heap… | — |
| app_invariants__da808201dca48060 | INVARIANT: Invariant Task Memory Layout Offsets SHADOW: Because tasks are type-erased via Vtables, the physical distance (offset) between the Header, Core, and Trailer must be calculated at… | — |
| app_invariants__eedb74c692e06a5d | INVARIANT: Deterministic RNG Reseeding per Entry SHADOW: Upon entering a runtime context, the local RNG is reseeded using a value derived from the scheduler's seed generator. This ensures that… | — |
| app_invariants__5ffe62ca1436169b | INVARIANT: Deregi_stration of I/O resources is batched, and the expensive cleanup is deferred until a threshold is met or explicitly triggered, amortizing the cost and reducing lock… | — |
| app_invariants__1d394ad20db514fa | INVARIANT: Waker notifications can be deferred and deduplicated, preventing immediate rescheduling and coalescing multiple wake-up signals for the same task into a single event. SHADOW: To prevent… | — |
| app_invariants__198f2fe15c4fca92 | INVARIANT: Each worker thread maintains a local, double-ended queue for its tasks. The owner pushes and pops from one end (LIFO), while other idle threads can 'steal' tasks from the opposite end… | — |
| app_invariants__7f5795f8a57cf155 | INVARIANT: The collective state of all worker threads (e.g., number of active, searching, and sleeping) is atomically managed to ensure that an idle worker is awakened upon new work injection, but… | — |
| app_invariants__66025a24aa1ba514 | INVARIANT: A heap allocation for a boxed future can be reused for a new future if and only if the new future's type has an identical memory layout, thereby avoiding repeated allocation and… | — |
| app_invariants__4c45282f9ed81194 | INVARIANT: A value is atomically transferred from a single sender to a single receiver; the channel's state machine, managed by a single atomic integer, guarantees that the value is sent at most once… | — |
| app_invariants__0c5e97b55b2f2083 | INVARIANT: Shared data access is governed by a semaphore, where exclusive write access requires acquiring all available permits, while shared read access requires acquiring a single permit, thereby… | — |
| app_invariants__490a30437f9faca3 | INVARIANT: A handle to a child process, upon being dropped, will either confirm the process has terminated or transfer ownership to an orphan queue, guaranteeing the process will eventually be reaped… | — |
| app_invariants__46dc35d492b3a513 | INVARIANT: I/O submission to the kernel's submission queue is coupled with completion queue processing. If the submission queue is full (EBUSY), completions are processed to make space, creating a… | — |