Independent register of AI agents & harnesses · no sponsored placementsEdition 2026-09 · 107 entries · evidence to 26 Sept 2026

The Register / Orchestrators & meta-harnesses / T3 Code

Register entry · Orchestrators & meta-harnesses · updated 26 Sept 2026

T3 Code

T3 Code is an MIT-licensed control surface for coding agents that runs a local server and exposes it through an Electron desktop app, a web app and iOS/Android apps. It launches agents such as Codex, Claude Code, Cursor CLI, Grok Build, OpenCode and Antigravity on your own machine using your existing subscriptions, with a git worktree per thread, diff review and one-click commit/PR. Remote access works over T3 Connect, LAN pairing or Tailscale. It is free; the project says it is early software.

What reviewers and users praise

  • Free and open source; uses the subscriptions you already pay for (Thalhammer, Better Stack, HN comments)
  • Remote/mobile control of agents running on your own machine (Thalhammer, Geniar, HN and Reddit users)
  • Worktree per agent makes parallel agents easier (HN user, Better Stack)

What they criticise

  • Early software with rough edges and bugs, acknowledged by the project itself (Geniar, AICodeKing, HN comments)
  • Default permission mode for new threads is Full access (no approval prompts)
  • Missing conveniences such as queuing multiple messages (Geniar)
Rating certificate · AW/26-09/05426 Sept 2026

T3 Code

Ping Labs (ping.gg / T3 Tools) · Orchestrators & meta-harnesses

No. 4 of 7 in categoryhigh confidenceTrust BOpen source
Adoption67
Experts64
Crowd70
Experts vs the crowdcrowd warmer by 6
Experts64
Crowd70
PriceFree
Use it viaDesktop app, Web app, Mobile app, CLI
Runs onmacos, windows, linux, web
LicenceMIT
UpdatedEvidence collected 26 Sept 2026

How the rating was worked out

Weights for Orchestrators & meta-harnesses: adoption 40%, experts 30%, crowd 30%. Pillars without enough evidence are left out and the others re-weighted. The method.

Adoption & momentumweight 40%67GitHub stars 24k → 72 · npm weekly downloads 20k → 35 · 14 releases in 90 days → 100
reach × 0.7 + momentum × 0.3
Expertsindependent reviews · weight 30%648 independent reviews (3 positive · 5 mixed · 0 negative), averaged toward 50 for small samples.
Crowdcommunity sample · weight 30%7022 dated posts from hackernews, reddit, x: 16 positive · 1 mixed · 5 negative
(positive + ½ mixed) ÷ n, averaged toward 50 for small samples
Rating67high confidence (3 of 3 pillars, 22 community posts).

Evidence checks. 3 items removed: dated before the thread it cites (1); date does not match the source (2). 3 items could not be checked at the source (the page could not be fetched, or the quote is from a comment under the linked post); kept and marked “unverified”. How evidence is checked.

Editorial adjustment. "Tolerated by over 300,000 devs" is a marketing joke line with no defined metric, so it is not counted as reported users.

Trust & safety

Seven dimensions graded A–D from documented facts. Overall: B.

C

Permission model

Four documented per-thread modes (Supervised, Auto-accept edits, Auto, Full access), but the initial default for new threads is Full access (commands and edits without approval). No sandbox of its own; relies on the provider CLI. source

n/e

Data access scope

Agents run in project folders/worktrees on the host machine; no documentation found that scopes T3 Code's own access beyond that. source

A

Data storage

Server runs on your own machine; remote access via optional T3 Connect sign-in, LAN pairing or Tailscale. No required cloud storage of code found. source

n/e

Data retention & training

Code goes to whichever model provider the user connects; T3 Code publishes no training/retention policy of its own that we found. source

A

Incident history (24 months)

No published GitHub security advisories on the repo as of 2026-09-26; no CVE found. A March 2026 review (AICodeKing) criticised an unsecured web server in the alpha, but no incident or advisory was published. source

D

Compliance

No SOC 2 / ISO attestations; free open-source tool. source

A

Transparency

MIT licence, public GitHub releases with notes, docs in repo. source

The experts

8 named independent reviews found; dated reviews from the last 12 months are scored.

  • positive
    Since then, the open-source T3 Code has quietly become my preferred app. The Codex app is now my alternative, demoted from daily driver to solid second choice.Alexander Thalhammer (ANGULARarchitects) · 29 Aug 2026 · angulararchitects.io
  • mixed
    It's early software, the project says so itself, and I've hit rough edges. But it does the job today.Mattias Geniar · 23 Jul 2026 · ma.ttias.be
  • positive
    For developers who already use AI coding assistants regularly and find the context-switching between tools disruptive, T3 Code is a practical improvement worth evaluating.Stanley Ulili (Better Stack Community) · 8 Mar 2026 · betterstack.com
  • mixed
    T3 Code: Another Agentic GUI that is GOOD BUT NOT USABLE..AICodeKing (YouTube) · 7 Mar 2026 · youtube.com
  • positive
    T3 Code is now my main AI coding interface, even after I switched from Claude to ChatGPT.Branislav Mateas (bmateas.com) · 28 Jul 2026 · bmateas.com
  • mixed
    Just don’t make it your primary tool for client work yet. It’s alpha software, and it feels like alpha software.Leonard Martinis (leonardmartinis.com) · 13 Mar 2026 · leonardmartinis.com
  • mixed
    If you’re looking for stable, production-ready tooling, wait for a more mature version.Dominik Szaradowski (szaradowski.com) · 20 May 2026 · szaradowski.com
  • mixed
    With 676 open issues and nightly releases, T3 Code is not yet a tool I would standardize across a large engineering orgabaeseokjae (baeseokjae.github.io) · 13 Jul 2026 · baeseokjae.github.io

The crowd

22 coded posts from hackernews, reddit, x.

16 positive1 mixed5 negative
  • positive
    T3 Code has been amazing. Completely free. Really impressed with the desktop app and the mobile app experienceHN comment · 14 Aug 2026 · news.ycombinator.com
  • positive
    T3 Code if you want to use your subscriptions in an interface that respects its users.HN comment · 20 Aug 2026 · news.ycombinator.com
  • positive
    Have you tried t3 code? It creates a separate worktree per agent, which makes running multiple agents at once much easier.HN comment · 21 Aug 2026 · news.ycombinator.com
  • positive
    The software is genuinely gargantuan in its features and capability, you really cannot appreciate it from quickly skimming the readme.HN comment · 1 Aug 2026 · news.ycombinator.com
  • positive
    Yes, I've found that T3 Code fills this gap nicely.HN comment · 30 Jul 2026 · news.ycombinator.com
  • negative
    It has less bugs than T3 Code.HN comment · 10 Aug 2026 · news.ycombinator.com
  • negative
    > T3 Code is the best way to code with AI. > We are very very early in this project. Expect bugs. Interesting combination of statements.HN comment on launch · 7 Mar 2026 · news.ycombinator.com
  • positive
    I've been using this other app called T3 code that does some weird cool SSH tunneling so i can send images and screenshots to the linux machiner/ClaudeCode · 7 Sept 2026 · reddit.com

Pricing

As published, checked 26 Sept 2026.

PlanPriceNotes
Free (open source)FreeNo subscription; requires your own agent subscriptions or keys.

Recent changes

Ranked alongside

Other ranked entries in Orchestrators & meta-harnesses.

Compare with the top two
OrcaStably AI78
SupersetSuperset Inc.70
HerdrHerdr (Can Celik; YC F26)68
Vibe KanbanBloop (company shut down April 2026; now community maintained)60
PaperclipPaperclip (paperclipai)58

Sources

Every figure above traces to one of these, observed up to 26 Sept 2026.

  1. T3 Code README
  2. Nimbalyst: Open Source Agent Workspaces 2026 (competitor; context only)
  3. HN Algolia search used for community sampling
  4. HN Algolia comment search, queries "t3 code", t3code, t3.codes (created after 2025-10-01)