T-Rex

T3 Code is an open-source agent-harness control surface for coding agents running on a developer's computer. It provides iOS and Android mobile apps, a web app, and an Electron-based desktop app for controlling locally configured Codex, Claude Code, Cursor, Grok Build, and OpenCode agents while using the user's existing provider subscriptions. The project can be launched with `npx t3@latest`, which starts its backend and local web interface on the machine. It also distributes desktop builds for Windows, macOS, and Arch Linux, and supports remote access from a phone or another machine. The repository describes the project as early-stage and warns that bugs are expected.

An AI-powered code-review platform that automatically analyzes pull requests in repositories hosted on platforms such as GitHub and GitLab, producing review comments, summaries, and suggestions within source-control and code-hosting workflows.

Treg is a registry and proxy for agent tools, developed by Superdesign. It gives an agent one base URL and token for discovering and calling catalogued endpoints from multiple providers, while also allowing teams to register their own APIs, OAuth connections, vendor CLIs, and SKILL.md bundles. Catalogued calls can use Treg's provider credentials, a team's credentials, or a verified public route; calls are priced per use when Treg's credentials are used. Its proxy resolves a tool by name or upstream URL, decrypts stored secrets, injects credentials using environment, secret-file, OAuth, or CLI-auth bindings, relays the request, and records an audit event. The proxy is designed to leave upstream requests and responses intact apart from transport and Treg control headers and the injected credentials. The `treg` CLI supports catalog search, tool calls, credential health checks, tool and skill registration, CLI execution, OAuth connections, organizations, and team access controls. It also exposes MCP surfaces for compatible agents and provides a hosted service at treg.to; the server can be self-hosted with the server installation extra. The repository is licensed under Apache 2.0 with additional terms restricting redistribution as a competing hosted registry service.

Exo is an AI agent harness for recursive self-improvement, providing tools, tasks, integrations, and a layered architecture that separates executive policy, protected state, and sandbox execution. It can inspect its own code and runtime logs, incrementally modify prompts, memory, tools, and harness policy, clone itself, and manage a lineage of clones. An event log remains outside these modifications as a canonical record intended to prevent recursive loops.

ToolReplay is a dependency-free Python CLI for auditing recorded AI-agent tool-call transcripts without executing the tools again. It strictly parses JSON Lines records, compares repeated calls and their canonicalized responses to detect non-determinism and redundant calls, checks tool names against a declared permission scope, and produces deterministic, timestamp-free reports suitable for CI checks and Git diffs. It can seal transcripts into a SHA-256 hash chain, verify the chain for edits or reordered records, replay a session against its recorded responses, and report permission overreach. It requires Python 3.11 or newer, has no third-party runtime dependencies or network access, and is distributed under the MIT license. Its scope checks are name-based, sealing is tamper detection rather than a signature, and replay only detects issues represented in the recorded transcript.