Fix: "Write(src/**) is not matched by file permission checks" in Claude Code
Claude Code only consults Edit(path) and Read(path) rules. A Write(src/**) allow or deny rule is accepted and then silently ignored. Use Edit() instead.
Tag: ai-agents
191 posts · Page 6 of 20
Visual Studio 18.8 Ships .NET Agent Skills Built In, Then Turns Them All Off
Visual Studio 2026 18.8 puts expert-authored .NET and Azure agent skills in the tool picker under a Built-in category, disabled by default. The default is the interesting part.
The New .NET Unit-Test Agent's Best Idea Is Not Writing Tests
On 2026-07-31 Microsoft shipped a polyglot unit-test agent in dotnet/skills. The interesting part is the mandatory pre-completion gate that pseudo-mutates your assertions before the agent is allowed to say it is done.
Copilot Code Review Now Reads Your .github/skills Folder
Agent skills and MCP servers in GitHub Copilot code review went GA on 2026-07-29. Here is where the files live, why skills load from the head branch, and why every MCP tool call in a review is read-only.
Fix: A Long MCP Tool Call Gets Auto-Backgrounded After Two Minutes Mid-Task
Claude Code 2.1.212+ moves any main-conversation MCP tool call still running at two minutes into a background task. Set CLAUDE_CODE_MCP_AUTO_BACKGROUND_MS=0 to stop it, raise the threshold to move the line, or send progress notifications from the server.
Fix: .mcp.json servers never start because the workspace is marked untrusted
Project MCP servers stuck at Pending approval are not misconfigured. Run claude interactively in the folder, accept the workspace trust dialog, then approve the servers.
Visual Studio 18.9 Lets You Set Thinking Effort Per Model
Visual Studio 18.9 Insiders 2 adds a per-model thinking effort control with Low through Max levels, exposing the same reasoning-effort dial the underlying model APIs take.
Fix: a Windows path in your agent config silently turns into a tab, a newline, or a Chinese character
Folder names starting with t, b, n, r or u make a Windows path parse cleanly as JSON and still resolve wrong. Use forward slashes or double every backslash.
MCP C# SDK 2.0 Ships: Stateless by Default and MCP9005 on Your Old Code
ModelContextProtocol 2.0.0 landed on 2026-07-28 with the stateless HTTP transport on by default, Multi Round-Trip Requests replacing server-initiated elicitation, and an analyzer warning on ElicitAsync and SampleAsync.
GitHub's MCP Server Went Stateless and Deleted Its Redis Session Store
On 2026-07-23 GitHub shipped the MCP 2026-07-28 revision ahead of the spec date. The notable part is the subtraction: no initialize handshake, no Mcp-Session-Id, no Redis.