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2026-06-15 cursor ai-agents typescript

How to Persist Cursor SDK Agent State Across Restarts (SQLite vs JSONL vs a Custom LocalAgentStore)

The Cursor SDK already persists agent state to disk so Agent.resume() can pick a conversation back up after a crash. This walks the SqliteLocalAgentStore default, the JsonlLocalAgentStore you can commit to git, and how to implement the LocalAgentStore interface for Postgres, Redis, or an in-memory CI store.

2026-06-14 dotnet dotnet-11 ef-core

EF Core 11's New EF1004 Analyzer Catches a Silent Async Mistake

EF Core 11 Preview 5 ships the EF1004 analyzer. It flags ToAsyncEnumerable() on an IQueryable so you do not accidentally enumerate a database query synchronously inside an await foreach.

2026-06-14 cursor ai-agents mcp

How to Expose Your Own Functions to a Cursor SDK Agent With local.customTools (Instead of a Separate MCP Server)

Pass local.customTools to a Cursor SDK agent and the model calls your in-process functions through the built-in custom-user-tools MCP server. No stdio handshake, no separate process, no transport bugs. Local agents only: cloud agents throw ConfigurationError.

2026-06-14 errors flutter dart

Fix: Bad state: Cannot use "ref" after the widget was disposed in Flutter Riverpod

This crash means a WidgetRef was used after its widget left the tree, usually in an async callback. Read what you need before the await, then guard with a mounted check.

2026-06-14 errors flutter dart

Fix: Looking up a deactivated widget's ancestor is unsafe in Flutter

This crash means you called context.of() after the widget left the tree, usually in an async callback or dispose(). Capture the value before the await, or in didChangeDependencies().

2026-06-14 comparison dotnet aspnetcore

HybridCache vs IMemoryCache vs IDistributedCache in .NET 11: which should you pick?

Default to HybridCache for new caching code in .NET 11. Reach for IMemoryCache only when you need raw single-server speed with no serialization, and IDistributedCache only as a backing store. Here is the decision matrix.

2026-06-13 dotnet-11 csharp cryptography

X25519 Key Agreement Lands In-Box in .NET 11 Preview 5

.NET 11 Preview 5 adds a first-class X25519DiffieHellman type to System.Security.Cryptography, so you can do Curve25519 key exchange without BouncyCastle or NSec.

2026-06-13 errors dotnet httpclient

Fix: The SSL connection could not be established with HttpClient

The inner AuthenticationException tells you the real cause: an untrusted chain, a name mismatch, or a TLS version gap. Trust the cert, fix the host name, or align protocols. Do not blanket-disable validation.

2026-06-13 comparison llm ai-agents

Hangfire vs Quartz.NET vs IHostedService for scheduled LLM jobs

Use Quartz.NET when an LLM job must run on a real cron and never overlap itself, Hangfire when each run must survive a restart and retry on rate limits, and a plain BackgroundService only for a loose in-process loop. A decision matrix with the cron and concurrency gotchas that pick for you.

2026-06-12 errors aspnetcore dotnet

Fix: The antiforgery token could not be decrypted in ASP.NET Core

The error means Data Protection lost the key that signed the token. Persist keys to a shared, durable store and call SetApplicationName so every instance reads the same key ring.