oai responses api, tool call retries

server/README.md

@@ -1,7 +1,7 @@
 # Sybil Server
 
 Backend API for:
-- LLM multiplexer (OpenAI / Anthropic / xAI (Grok))
+- LLM multiplexer (OpenAI Responses / Anthropic / xAI Chat Completions-compatible Grok)
 - Personal chat database (chats/messages + LLM call log)
 
 ## Stack
@@ -46,7 +46,7 @@ If `ADMIN_TOKEN` is not set, the server runs in open mode (dev).
 - `EXA_API_KEY`
 - `CHAT_WEB_SEARCH_ENGINE` (`exa` by default, or `searxng` for chat tool calls only)
 - `SEARXNG_BASE_URL` (required when `CHAT_WEB_SEARCH_ENGINE=searxng`; instance must allow `format=json`)
-- `CHAT_MAX_TOOL_ROUNDS` (`8` by default; maximum model/tool result cycles per chat completion)
+- `CHAT_MAX_TOOL_ROUNDS` (`100` by default; maximum model/tool result cycles per chat completion)
 - `CHAT_CODEX_TOOL_ENABLED` (`false` by default; enables the `codex_exec` chat tool for OpenAI/xAI)
 - `CHAT_CODEX_REMOTE_HOST` (required when Codex tool is enabled; SSH host/IP or `user@host`)
 - `CHAT_CODEX_REMOTE_USER` (optional SSH user when host does not include one)