AI product Open source

antibody

antibody is an open-source coordination layer for fleets of coding agents. It watches tool-call failures, recognizes matching errors across worktrees, lets the first agent claim a diagnosis, and delivers the recorded fix to other sessions using Claude Code, Gemini CLI, and Codex CLI hooks. It does not start agents or manage worktrees.

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Overview

A failed tool call is normalized and converted into a fingerprint so equivalent failures match despite changing ports, paths, timestamps, or identifiers. Claims prevent multiple agents from diagnosing the same new error; once a fix is recorded, it is stored as redacted, human-editable memory and injected into later matching sessions through the host agent's hooks. The project also provides five MCP tools, the `antibody watch` fleet view, statistics, import/export and review commands, and an optional HTTP relay for sharing fixes between clones or machines.

Shared memory normally resides in the repository's common Git directory and requires no server or database. The committed Claude Code plugin and the Gemini CLI and Codex CLI setup commands require Node.js 22.13 or newer. The repository is distributed under the MIT license.

What antibody is used for

1 use taken from transcripts — each links to the moment in the video.

  • Tackles the problem of several coding agents hitting the same error and each solving it separately. It recognizes matching failures across work trees, lets one agent claim the diagnosis, then passes its recorded fix to the others. Works with Claude Code, Gemini CLI and Codex CLI.

Videos mentioning antibody

1 in the library.