{"id":"bytedance-deer-flow","name":"deer-flow","af_score":52.5,"security_score":57.0,"reliability_score":30.0,"what_it_does":"DeerFlow (2.0) is an open-source long-horizon “super agent” harness that orchestrates sub-agents, memory, and sandboxed execution to perform complex tasks over minutes to hours, with extensible skills/tools and support for configurable model providers (Python/Node ecosystem) and integrations like MCP servers and messaging (IM) channels.","best_when":"You want a configurable agent orchestration framework that can manage multi-step work, tool usage, and isolated execution environments, and you can handle model/provider credentials securely.","avoid_when":"You cannot control or constrain sandbox/tool access, or you require highly deterministic, low-latency interactions with minimal operational complexity.","last_evaluated":"2026-03-29T12:58:23.249714+00:00","has_mcp":true,"has_api":false,"auth_methods":["OpenAI-compatible API keys (env/config)","Provider-specific API keys via config.yaml","OAuth token flows for HTTP/SSE MCP servers (client_credentials, refresh_token)","Messaging channel authentication (Telegram bot token, Slack bot/app tokens, Feishu/Lark app_id/app_secret)","CLI/OAuth handoff for Claude Code (multiple env/file options; credentials JSON paths)"],"has_free_tier":false,"known_gotchas":["Sandbox execution mode selection (local vs Docker vs Kubernetes) affects isolation/security and operational behavior","Token-cap differences across provider adapters (e.g., Codex Responses endpoint rejecting certain token caps) may require configuration adjustments","Some CLI integrations require explicit credential export/handoff (e.g., Claude Code on macOS) and may not auto-detect Keychain"],"error_quality":null}