Fix: GitHub MCP server tool calls fail silently when the PAT isn't passed
GitHub MCP tools show up but every call returns empty or 'Bad credentials'? The token is unset. Put the PAT in the env block, verify with curl, done.
Tag: claude-code
44 posts · Page 2 of 5
Fix: "Claude reached its tool-use limit for this turn"
This banner is a pause, not a failure. It maps to the API's pause_turn stop reason (default 10 server-tool iterations). Click Continue, or in code re-send the assistant response. Full fix here.
The Dart and Flutter MCP server: one command to give Claude Code your running Flutter app
Dart 3.12 ships dart mcp-server, the official MCP bridge into the Dart and Flutter toolchain. Register it once in Claude Code, Cursor, or Codex CLI and your agent gets hot reload, pub.dev search, and live widget introspection without copy-pasting a DTD URI.
Fix: HTTP MCP Server URL Won't Connect in Claude Desktop (stdio vs HTTP Transport)
Claude Desktop's claude_desktop_config.json only validates stdio servers. Drop a 'url' field in and it silently strips the entry, crashes on startup, or boots with zero tools. Use a custom connector for remote URLs and mcp-remote as a stdio bridge for local HTTP servers.
How to Let Aider Edit Files Outside the Git Repository
Aider is git-first by default. To edit files outside the repo, pass them on the command line, use /read for reference docs, drop --no-git for unversioned dirs, or symlink. Five working patterns with exact flags.
How to Reduce the Number of MCP Tools Claude Loads to Avoid the Tool-Use Limit
Five MCP servers can burn 55k tokens and wreck tool-selection accuracy before Claude does any work. How to fix it in Claude Code 2.1.x with ENABLE_TOOL_SEARCH and alwaysLoad, on the raw API with the tool search tool and defer_loading, and on the MCP connector with mcp_toolset. Anchored to claude-opus-4-7, claude-sonnet-4-6, and the 20251119 tool search variants.
Fix: Extra Inputs Are Not Permitted on a Tool Call With a Structured Argument
Your agent's tool call fails with Pydantic's 'Extra inputs are not permitted'. The model added a field your structured argument forbids. Turn on strict tool use so the grammar blocks it, relax the validator, or recover in the loop.
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.
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.
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.