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Fix Figma MCP OAuth flow completing but MCP server disconnecting and reconnecting with only auth placeholder tools instead of full Figma toolset Includes evidence for Claude Code troubleshooting demand.
Figma MCP gets stuck in authenticate-only tools after successful OAuth, never exposing real tools like get_file or get_comments Fix Claude Code failing to persist OAuth tokens for Greptile MCP plugin despite successful OAuth flow, leaving plugin unusable Includes evidence for Claude Code troubleshooting demand.
OAuth flow completes (code consumed by localhost callback) but mcpOAuth credential map contains zero plugin:greptile entries, plugin permanently stuck in needs_auth state Fix Opus 4.7 model returning unparseable tool call responses in Claude Code, blocking all agent operations Includes evidence for Claude Code troubleshooting demand.
"The model's tool call could not be parsed (retry also failed)" Prevent Claude Code Opus from crashing mid-session when spawning multiple subagent tasks Includes evidence for Claude Code troubleshooting demand.
Session terminates automatically; shows 'Resume this session with: claude --resume <id>' without any error logs or crash dump Recover locked-out Claude Code Pro or Max subscriber account that returns 403 on organization API endpoints after a platform outage, with human support refusing escalation Includes evidence for Claude Code troubleshooting demand.
/api/organizations returns 403 Forbidden, account inaccessible after outage, support loop unresolved for 60+ hours Fix regression where Claude Code Remote Routine sessions start with blank MCP OAuth accessToken values, triggering repeated dynamic OAuth client registrations that exhaust per-client registration rate limits Includes evidence for Claude Code troubleshooting demand.
MCP OAuth access tokens empty on every fresh container — SDK auth failed: You have exceeded the rate limit for client registration requests Debug Claude Code silently failing to connect to OAuth-protected MCP servers without proper DCR configuration Includes evidence for Claude Code troubleshooting demand.
[BUG] HTTP MCP servers requiring OAuth silently fail when Dynamic Client Registration (DCR) is not enabled — no tools appear, no error shown Developer configures custom MCP connector in Claude Code via claude.json, OAuth authentication succeeds initially but tokens fail to persist across sessions causing SDK auth failures Includes evidence for Claude Code troubleshooting demand.
Error: SDK auth failed Developer uses HTTP-based MCP servers with OAuth (e.g., Slack MCP at mcp.slack.com) in Claude Code; dynamic client registration (RFC 7591) fails with incompatible auth server error Includes evidence for Claude Code troubleshooting demand.
SDK auth failed: Incompatible auth server Developer starts Claude Code but one or more configured MCP servers fail to connect — covering failure across discovery, auth, schema validation, or streaming phases Includes evidence for Claude Code troubleshooting demand.
one or more MCP server processes or remote transports failed during discovery, authentication, schema validation, or streaming Developer connects n8n instance MCP server to Claude Code; Claude Code requires OAuth flow but n8n only provides access tokens, creating an incompatibility that blocks integration Includes evidence for Claude Code troubleshooting demand.
Claude only accepts OAuth, but n8n only provides an Access Token 用户使用流式 AI 工具时 SSE 连接断开且无法重连，需要修复实时对话功能 Includes evidence for Claude Code troubleshooting demand.
Failed to reconnect SSE stream: Streamable HTTP error: Failed to open SSE stream Fix Claude Code scheduled routines where MCP connector tool calls keep asking for permission even though they are set to 'Always allow', breaking enterprise automation workflows. Includes evidence for Claude Code troubleshooting demand.
MCP tool call requires approval — tools blocked in ephemeral container despite Always Allow / UI guaranteeing no approval is needed Users paying for Claude Max plan experiencing usage limits being consumed much faster than expected, especially via CLI (Claude Code). Need to understand if this is a bug or quota change. Includes evidence for Claude Code troubleshooting demand.
out of extra usage — Max plan 5h limit shows X% remaining while CLI usage depletes it within 1-2 hours Users running Claude Code with MCP STDIO-based tools experience server processes getting OS-reaped during conversations, then respawned without graceful shutdown, causing hung connections and tool failures. Includes evidence for Claude Code troubleshooting demand.
MCP STDIO subprocess reaped + respawned mid-conversation, no shutdown signal to the server Claude Code Pro/Max users running Opus 4.7 encounter tool call parsing failures where retries also fail, leaving agents stuck. Regression started May 20, 2026. Labeled 'has repro' with detailed reproduction steps. Includes evidence for Claude Code troubleshooting demand.
could not be parsed (retry also failed) — Opus 4.7 tool calls fail repeatedly starting 2026-05-20 Users running scheduled webhooks/retrieval-routines in Claude Code web UI lose all MCP connector permissions on each invocation due to ephemeral container recreation, requiring manual permission grant every time. Includes evidence for Claude Code troubleshooting demand.
Remote routines lose MCP connector permissions every run — tools blocked in ephemeral container Merchants using Claude Code with Shopify MCP connector switch between multiple shop instances and get stuck in perpetual token-expired error loops that cannot be resolved without restarting the entire session. Includes evidence for Claude Code troubleshooting demand.
token-expired loop after multi-shop switch, unrecoverable from client side Claude Code users configuring MCP servers face persistent permission denied errors despite granting allow permissions; need fix for Claude Code MCP authorization behavior Includes evidence for Claude Code troubleshooting demand.
Claude Code keeps asking for permission even with 'Allow' setting; MCP plugin reports 'Permission denied' repeatedly Fix OAuth-based connection failure between Claude Code and GitHub's remote MCP server Includes evidence for Claude Code troubleshooting demand.
Cannot connect to GitHub's remote MCP server using OAuth authentication; Authorization with the MCP server failed