Agent Spending Authority: Reservations, Approval Scope and Uncertain Charges
A local SQLite reservation ledger shows why approval, shared task allowance and an uncertain receiver outcome require separate, testable state transitions.
THE READING ROOM
Performance & Runtime
THE READING ROOM
Writing & investigations.
Behind ValueTask: A Custom IValueTaskSource and Its Reuse Protocol
An executable .NET source exposes the version, consumption and continuation rules behind reuse. The measurements show fewer allocations without a faster median in this fixture.
Lazy<T> on a Hot Path: Factories, Contention, Exceptions and Allocations
A controlled Lazy<T> laboratory separates factory execution, publication, cached exceptions and resource ownership before interpreting cold-path and ready-read measurements.
Pooling Without Illusions: ArrayPool, MemoryPool and Buffer Ownership Across Await
A runnable .NET laboratory shows why rental lifetime, cancellation and retained memory must be understood before a pooling benchmark can support a decision.
An Agent Cost Ledger in .NET: Attempts, Quality and Successful Tasks
A runnable synthetic ledger preserves attempt identity, corrections and unknown usage, then refuses a precise cost-per-accepted-task ratio when the observed history is incomplete.
Parsing Without Unnecessary Copies: PipeReader, SequenceReader and Segment Boundaries
A real length-prefixed parser, exhaustive short-stream partitions and measured copied-versus-segmented results show why fewer allocations do not guarantee faster parsing.