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Fix Claude Code 503 errors caused by corporate proxies, ZTNA agents, or VPNs blocking Anthropic API requests from reaching the cloud endpoint Includes evidence for Claude Code troubleshooting demand.
HTTP 503 — Anthropic backend unreachable on route (Cloudflare edge or regional gateway error) Fix Claude Code 529 overloaded error when Anthropic API capacity is saturated during peak hours on Opus or Max plan Includes evidence for Claude Code troubleshooting demand.
API Error: 529 {"type":"overloaded_error"} Resolve 'Permission denied' errors when using GitHub CLI (gh) commands inside Claude Code consultant mode Includes evidence for Claude Code troubleshooting demand.
[BUG] Claude Code Web Cannot Use gh CLI Commands - Permission Denied Fix persistent GitHub token authentication errors in Claude Code MCP server after manual token refresh Includes evidence for Claude Code troubleshooting demand.
[Bug] GitHub token authentication error persists after refreshing tokens Fix Claude Code failing to connect to an MCP server due to missing Dynamic Client Registration (OAuth 2.0), seeking configuration or workaround to enable MCP auth Includes evidence for Claude Code troubleshooting demand.
Claude Code fails connecting to MCP server that does not have Dynamic Client Registration implemented Fix Claude Code tools silently failing after denied by permission model without explaining why or asking for clarification; resolve broken agent workflow due to prompt change Includes evidence for Claude Code troubleshooting demand.
AskUserQuestion fallback on tool denial removed — model must figure out why tool was denied on its own; silent failures in autonomous coding sessions Fix Claude Code rendering corruption when mixing multibyte strings, ANSI escapes, and binary blobs in long sessions Includes evidence for Claude Code troubleshooting demand.
chat panel text rendered into garbled / unreadable characters — Unicode or terminal-redraw glitch Fix Claude Code / MCP Toolbox silent authentication failures caused by misconfigured authRequired flag in authService Includes evidence for Claude Code troubleshooting demand.
tool-level authRequired silently 401s every call when authService has mcpEnabled: true Fix Claude Code / claude.ai OAuth authentication failure when using Google as IdP via MCP Toolbox Includes evidence for Claude Code troubleshooting demand.
failed to parse introspection response: json: cannot unmarshal string into Go struct field .exp of type int64 Developers running AI agents with Claude Code encounter 429 quota errors but the agent does not trigger the configured fallback chain, causing complete task failure instead of gracefully switching models Includes evidence for Claude Code / OpenAI Codex Provider troubleshooting demand.
Failed to parse server JSON response: InsufficientQuotaError - Agent ignores 429 quota errors instead of falling back to configured model chain Resolve Claude Code Web authentication error when GitHub MCP integration fails with 403 Copilot permission error, causing confusing OAuth redirect loop to unrelated pages instead of clear error message. Includes evidence for Claude Code troubleshooting demand.
GitHub MCP returns 403 "not authorized to use this Copilot feature" on Claude Code web; OAuth fallback renders misleading "Server Turned Down → Google Drive" page Fix Claude Code HTTP MCP server connection failure that started appearing after upgrading from v2.1.140 to v2.1.142, where configured HTTP MCP servers stop connecting and tools become unavailable. Includes evidence for Claude Code troubleshooting demand.
[MCP] --mcp-config servers running fully async (nonblocking) but no connection established; HTTP MCP server tools list fetch fails after upgrade to 2.1.142 Fix MCP tools in Claude Code returning user denied error even when permissions.allow contains correct server entry, no permission prompt appears Includes evidence for Claude Code troubleshooting demand.
tools spuriously rejected as 'user denied' without permission prompt Fix Claude Code Chrome MCP tools failing on all domains when navigating or reading pages Includes evidence for Claude Code troubleshooting demand.
"Navigation to this domain is not allowed" / "Permission denied for reading pages on this domain" Fix Claude Code on Windows where git worktree remove fails with Permission denied because MCP servers aren't shut down before worktree operations Includes evidence for Claude Code troubleshooting demand.
worktree removal fails with Permission denied due to MCP shutdown ordering User ran /login in Claude Code on Windows, sees success message but tool remains unauthenticated and rejects all commands afterward Includes evidence for Claude Code troubleshooting demand.
/login shows "Login successful" but immediately reverts to "Not logged in". Any subsequent command fails with "Not logged in". Developer calls langgraph.with_structured_output() expecting it to preserve pre-bound tools, but they are silently dropped — functional regression breaking LLM function calling workflows Includes evidence for LangChain troubleshooting demand.
[langchain-openai] with_structured_output() silently drops previously bound tools and lacks support for OpenAI native tool bindings Fix Claude Code MCP server authentication returning HTTP 431 error on Linux platform Includes evidence for Claude Code troubleshooting demand.
HTTP ERROR 431 — MCP server authentication failure (browser restart!) Fix Claude Code OAuth authentication failure after auto-update preventing login to AI coding assistant Includes evidence for Claude Code troubleshooting demand.
OAuth Request Failed — This isn't working right now. You can try again later Fix Claude Code SDK crashing immediately on startup during GitHub Actions CI, no API calls made Includes evidence for Claude Code troubleshooting demand.
error: Claude Code process exited with code 1; SDK execution error: 14 | depsCount