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First minor release since 1.1.0. MCP integration, three new LLM providers, context management strategies, a CLI, tool output cost controls, and fixes for abort and error propagation.

Features

  • MCP integration. New connectMCPTools() wires any MCP server (stdio) directly into agent tool use. @modelcontextprotocol/sdk is an optional peer dependency. Runnable example at examples/16-mcp-github.ts. (#89, by @ibrahimkzmv)

  • Three new LLM providers. First-class provider: 'deepseek' (deepseek-chat, deepseek-reasoner), provider: 'minimax' (global and China endpoints via MINIMAX_BASE_URL), and verified Groq via OpenAI-compatible baseURL in examples/19-groq.ts. (#113 and [#114] by @hkalex; [#121] by @mvanhorn)

  • Context management strategies. New AgentConfig.contextStrategy keeps long runs under token ceilings with four strategies: sliding-window, summarize, compact (rule-based, no extra LLM call), and custom. (#88 by @ibrahimkzmv; [#111], [#119] by @JackChen-me)

  • Tool output cost controls. New AgentConfig.maxToolOutputChars and per-tool ToolDefinition.maxOutputChars truncate large outputs (head + tail with a marker). New AgentConfig.compressToolResults compresses older tool results once the agent has moved on; errors are never compressed. (#110, [#115], [#116], [#117], [#118] by @JackChen-me)

  • CLI (oma). New binary for shell and CI with oma run, oma task, oma provider, JSON-first output, and stable exit codes. Docs at docs/cli.md. (#107 by @ibrahimkzmv)

  • AgentConfig.customTools. Inject tool definitions at config time from the orchestrator. Bypasses preset/allowlist filtering but still respects disallowedTools. (#109, [#112] by @JackChen-me)

  • glob built-in tool. Find files by glob pattern, sorted by modification time. (#102 by @ibrahimkzmv)

Fixes

  • AbortSignal propagation. Abort now reaches tool execution, the Gemini adapter, and the abort queue path. (#104 fixes [#99], [#100], [#101], by @JackChen-me)

  • Error event propagation. AgentRunner.run() now surfaces error events to callers. (#103 fixes [#98], by @JackChen-me)

Examples

  • examples/16-mcp-github.ts: full MCP wiring
  • examples/17-minimax.ts, examples/18-deepseek.ts, examples/19-groq.ts: provider quickstarts
  • examples/with-vercel-ai-sdk/: Next.js + OMA runTeam() + AI SDK useChat

Docs

  • READMEs (EN/ZH) expanded: CLI, MCP, context strategies, tool output control, customTools. ZH caught up with EN on items that shipped in 1.1.

Install

:::bash
npm install @jackchen_me/open-multi-agent@1.2.0

Thanks to @hkalex, @ibrahimkzmv, and @mvanhorn for the external contributions that make this release.

Full changelog: https://github.com/JackChen-me/open-multi-agent/compare/v1.1.0...v1.2.0

Source: README.md, updated 2026-04-18