hermes-agent/website/docs
Teknium 395e9dd9e2
feat: add supports_parallel_tool_calls for MCP servers (#26825)
Port from openai/codex#17667: MCP servers can now opt-in to parallel
tool execution by setting supports_parallel_tool_calls: true in their
config. This allows tools from the same server to run concurrently
within a single tool-call batch, matching the behavior already available
for built-in tools like web_search and read_file.

Previously all MCP tools were forced sequential because they weren't in
the _PARALLEL_SAFE_TOOLS set. Now _should_parallelize_tool_batch checks
is_mcp_tool_parallel_safe() which looks up the server's config flag.

Config example:
  mcp_servers:
    docs:
      command: "docs-server"
      supports_parallel_tool_calls: true

Changes:
- tools/mcp_tool.py: Track parallel-safe servers in _parallel_safe_servers
  set, populated during register_mcp_servers(). Add is_mcp_tool_parallel_safe()
  public API.
- run_agent.py: Add _is_mcp_tool_parallel_safe() lazy-import wrapper. Update
  _should_parallelize_tool_batch() to check MCP tools against server config.
- 11 new tests covering the feature end-to-end.
- Updated MCP docs and config reference.
2026-05-16 01:04:28 -07:00
..
developer-guide docs: add Programmatic Integration overview (closes #360) 2026-05-15 22:14:33 -07:00
getting-started remove pip installation method from docs 2026-05-15 22:14:41 -04:00
guides feat(x_search): gated X (Twitter) search tool with OAuth-or-API-key auth (#26763) 2026-05-16 00:58:27 -07:00
integrations docs(xai): link OAuth-over-SSH guide from xAI provider surfaces (#26610) 2026-05-15 14:45:59 -07:00
reference feat: add supports_parallel_tool_calls for MCP servers (#26825) 2026-05-16 01:04:28 -07:00
user-guide feat: add supports_parallel_tool_calls for MCP servers (#26825) 2026-05-16 01:04:28 -07:00
index.md docs: round 2 audit — messaging, developer-guide, guides, integrations (#22858) 2026-05-09 15:00:24 -07:00
user-stories.mdx docs(website): add User Stories and Use Cases collage page (#18282) 2026-04-30 23:56:59 -07:00