The MIT Codex plugin and local MCP server create or attach Claude Code sessions, hand off scoped implementation in separate worktrees, then review and merge with independent frequency and reasoning knobs. It needs Codex CLI, a working Claude Code setup, Node.js 20+, and Git; Windows and macOS are supported, and Orca is optional.
On GPT 6 Astra, Reason Machines' harness scored 65.1 against Codex's 62.5 on Artificial Analysis's Coding Agent Index (DeepSWE, Terminal Bench 4.0, SWE Atlas QnA), with an unmodified base harness at 61.4. It cuts tokens via parallel tool runs inside one JavaScript program and a small always visible tool set, with platform features deferred until code asks for them…
The environment, not the model, logs every file a terminal agent reads, tracks listed but unopened files, and blocks the first finish while requirements are still open; the authors found about one in five values an agent had already seen never made it into the deliverable. With the same Pi based harness it beat plain direct workspace agents and model kept TODO lists on Workspace Bench, TheAgentCompany, and OfficeQA Pro, lifting Gemini 3.8 Flash's Workspace Bench pass rate from 31.4% to 46.9%…
A single shared model plays executor, workflow optimizer, and evaluator, searches for better multi agent workflows, and fine tunes on executions of the team it judged best. After two cycles with Qwen3.6 27B, score per output token reached 1.2 to 1.6x the base model on four research benchmarks, and the authors found the optimizer, not the evaluator, was the bottleneck; paper and code are open…
Both sessions join a named "bag" in the same repo, and a review request or reply lands in the other agent as a new turn through its own input, with no daemon, polling, or hooks and one shared local log. The MIT server needs Python 3.10+ and a Codex CLI with codex queue , installs with pipx install 'postbag[mcp]' , and is tested on macOS…
Instead of calling MCP tools one by one and dumping every full result into context, the model writes a single JavaScript program that calls the tools, filters and joins the output in an isolated Node process, and returns only the final answer. It needs Node.js 22.13+, keeps normal MCP permission checks, and installs with /plugin marketplace add gabe4coding/claude code mode…
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