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turnstone/docs
Patrick Buckley c79c47b940 Add MCP dynamic tool refresh with push notifications and periodic pol… (#31)
* Add MCP dynamic tool refresh with push notifications and periodic polling

MCP tool lists now stay up-to-date without restart via three mechanisms:
push notifications (ToolListChangedNotification) for servers that support
it, staggered periodic polling for servers that don't, and manual
/mcp refresh [server] command. MCPClientManager tracks tools per-server
with copy-on-write rebuild, notifies ChatSession listeners which rebuild
tool lists and ToolSearchManager (preserving expanded tools).

* Address Copilot review feedback on MCP refresh PR

- Fix /mcp refresh typo matching (startswith → exact token check)
- Validate --mcp-refresh-interval >= 0 at parse time via shared
  nonneg_float in config.py (deduplicated from cli.py + server.py)
- Clamp negative refresh_interval to 0 in MCPClientManager constructor
- Fix periodic refresh first poll timing (was initial_delay + interval,
  now initial_delay then immediate first poll)
- Clarify _on_mcp_tools_changed docstring re: O(n) BM25 build cost
2026-03-08 03:28:38 -07:00
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