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Tag: ai-agents

128 posts · Page 9 of 13

2026-05-22 mcp claude-code ai-agents

Fix: `ECONNREFUSED` When a Local MCP Server Starts Before the Client Is Ready

ECONNREFUSED from an MCP client means nothing was listening on that host:port yet. Fix the startup race, the localhost IPv4/IPv6 trap, and wrong-port mistakes for HTTP MCP servers.

2026-05-21 cursor ai-agents cloud-agents

Cursor 3.4 Adds Multi-Repo Environments and Faster Dockerfile Builds for Cloud Agents

Cursor 3.4 (May 13, 2026) lets one cloud agent environment include multiple repositories, adds Dockerfile build secrets, layer-cached rebuilds that run 70% faster, and an agent-led setup step that validates credentials before the first run.

2026-05-21 github-copilot ai-agents agent-skills

Fix: GitHub Copilot Ignores Repository Custom Instructions in VS Code

Copilot Chat reads your .github/copilot-instructions.md fine, but Agent mode and *.instructions.md files often look ignored. Here is the actual checklist: settings, file locations, applyTo globs, and how to prove the file made it into context.

2026-05-20 errors cursor ai-agents

Fix: Cursor's Apply Button Does Nothing on a Large Diff

Cursor's Apply silently cancels on big files because the Fast Apply model has an implicit size ceiling. Shrink the edit scope, clean git state, or fall back to a unified diff. Six ranked fixes for Cursor 3.3.

2026-05-19 mcp claude-code ai-agents

Fix: Claude Code Reports `MCP server disconnected` Inside WSL

Why Claude Code shows 'MCP server disconnected' or 'Connection closed' for a working MCP server when launched from WSL2. Covers stdio spawning across the Windows/Linux boundary, npx and node ENOENT, mirrored networking for HTTP servers, VMMem reaping, and how to diagnose the right one with claude --debug.

2026-05-18 github-copilot ai-agents openai

GPT-5.3-Codex Becomes the Copilot Business and Enterprise Base Model

On May 17, 2026 GitHub flipped the default Copilot model on Business and Enterprise plans from GPT-4.1 to GPT-5.3-Codex. GPT-4.1 stays free until June 1, then it falls under usage-based billing. Here is what changes for pinned models in your repo and CI.

2026-05-18 errors ai-agents llm

Fix: rate_limit_error on Claude Sonnet 4.6 in a Long Agent Loop

A 429 rate_limit_error on claude-sonnet-4-6 in a long agent loop is almost always ITPM, not RPM. Read retry-after, cache the system prompt, and gate on anthropic-ratelimit-input-tokens-remaining. Step-by-step fix with code.

2026-05-17 mcp ai-agents dotnet

dotnet new mcpserver Now Ships in the .NET 11 Preview 4 SDK

.NET 11 Preview 4 bundles the mcpserver project template directly into the SDK. No separate Microsoft.McpServer.ProjectTemplates install, no preview feed dance. Pick stdio or HTTP transport, opt into Native AOT, and dotnet new mcpserver -o MyServer is the whole setup.

2026-05-17 errors ai-agents llm

Fix: Context Window Exceeded During an Aider Refactor

Aider 0.86 hit the token limit mid-refactor. The fix is /clear, /drop, --map-tokens, and switching to architect mode with Claude Sonnet 4.6's 1M window. Step-by-step repro, error breakdown, and config.

2026-05-16 errors claude-code anthropic-sdk

Fix: Tool Call Arguments Did Not Match Schema in Anthropic Tool Use

Why your Claude tool call fails schema validation, in both flavours: the API rejecting your tool definition at request time, and Claude returning a tool_use block your runner cannot accept. Concrete fixes for each, with strict mode, oneOf/anyOf, additionalProperties, and the retry loop pattern.