v8.2.0

[8.2.0] - 2026-11-05

Changed

• MCP negotiation now includes 2025-11-25, retaining 2025-06-18, 2024-11-05, initialization, ping, and once-per-session roots discovery with its five-second fallback.
• Optional mcpServer.validateOutputs checks typed MCP results without coercion, defaults, or key stripping. Opted-in typed results and JSON text match the advertised object-rooted schema; default string envelopes and scalar/array wrappers remain compatible. CLI and REST output validation is unchanged.
• MCP handlers receive cooperative cancellation and opted-in progress through ctx.mcp. Cancelled queued work is skipped, active abortable children can stop, and tools remain serialized.
• Explicit standard tool annotations are emitted without inferred safety claims. Parse/envelope/metadata failures now return recoverable protocol errors.
• Non-serializable MCP results return tool errors without ending the session. Updated docs and npm examples for a compatible minor; the modern-only rewrite, native media, and Streamable HTTP remain deferred.