Forge GUI: Visual Interfaces for Terminal AI Coding Agents in 2026

If you want a Forge GUI for ForgeCode, the terminal AI coding agent, there is no official desktop or IDE app for the open-source CLI as of October 2026, but there are now several good visual interfaces for terminal agents in general, and the one that matters most for agent-written code is the GitHub pull request with an AI code reviewer posting into it. The agent writes in the terminal. You read, judge and merge in a visual surface.

This page is about that second half: the visual interfaces that exist today for terminal AI coding agents, what each one is good at, and where AI code review fits. If you are not sure which "Forge" you meant in the first place (there are at least eight), start with Forge GUI: what it means and the best options for each Forge.

TL;DR: Forge GUI for terminal AI coding agents

• The ForgeCode CLI is still terminal-only. Its README describes three modes: an interactive terminal UI, one-shot prompts with -p, and a ZSH plugin that routes : commands to the agent. No desktop app or IDE extension is documented.
• ForgeCode's homepage now pitches something bigger. forgecode.dev markets a hosted "software factory" whose product shots show a board-style interface, with access by demo. It is a different product from the open-source CLI.
• Other terminal agents have grown real GUIs. Claude Code has a desktop app, a web version and IDE extensions. Codex runs in the ChatGPT desktop app, an IDE extension and Codex Cloud. Editors that speak the Agent Client Protocol (ACP) give many CLI agents a visual panel.
• A GUI over the agent is not a review. It shows you what the agent did. It does not give you an independent opinion on whether the change is correct.
• The GitHub pull request is the Forge GUI for review. Macroscope posts inline findings, a PR summary and a check on every GitHub PR, with Fix It For Me for fixes, and runs the same review in your terminal through the Macroscope CLI.

What does a Forge GUI need to do for a terminal AI coding agent?

A useful Forge GUI does two jobs: it lets you steer the agent, and it lets you see and judge what the agent changed. Most visual interfaces for terminal agents are built for the first job. The second job is where agent-heavy teams actually get stuck.

A terminal agent narrates its work as it goes. After twenty tool calls, the shape of the change is scattered across scrollback, mixed in with test output and file reads. When people search for a Forge GUI, they are usually after some combination of these:

1. A readable diff, file by file, instead of a transcript.
2. Several agents at once, each in its own workspace, with a view of what each is doing.
3. Findings anchored to lines, so a claim like "handled the null case" is attached to the code it is about.
4. A record a teammate can open, after the terminal session is gone.
5. A gate, so a bad change cannot land just because nobody looked.

The first two are agent-interface features. The last three are code review features. Keep that split in mind for the rest of this page. It is the difference between a Forge GUI that makes you faster and one that makes the code safer.

Does ForgeCode have a GUI in 2026?

The open-source ForgeCode CLI has no GUI. It is a terminal agent, and its README describes it that way: "Works right in your terminal, where you already work." It runs in three modes:

• Interactive terminal UI. Run forge with no arguments for a persistent conversational session.
• One-shot CLI. Pass -p (or --prompt) to run a single prompt and exit, which is handy for scripts and pipes.
• ZSH plugin. After forge setup, lines that start with : are routed to Forge at your normal shell prompt.

It installs with curl -fsSL https://forgecode.dev/cli | sh, is Apache-2.0 licensed, describes itself as a pair programmer for "300+ models", and is actively maintained by Tailcall (release v2.14.0 shipped on October 1, 2026). Nothing in the README documents a desktop app, a web interface or an IDE extension.

The ForgeCode homepage is now selling a different shape of product. As of October 2026, forgecode.dev describes a hosted "software factory" that takes triggers from bugs, forum posts, Slack, alerts or a prompt and turns them into tested changes on a board. The product shots show issue boards, run logs and a command palette, and you can run it on ForgeCode's cloud or your own. The page does not say whether that interface is a web or desktop app, lists no pricing, and offers access through "Book a demo". If you want a visual board over ForgeCode, that is the place to ask. If you want a GUI for the open-source CLI you already run, there is not one yet.

What visual interfaces exist for terminal AI coding agents?

In 2026 there are four kinds of Forge GUI for terminal agents: first-party desktop and web apps, IDE extensions, ACP-compatible editors, and third-party multi-agent managers. The table summarizes what each vendor's own pages say today.

Interface	Agents	Highlights	Platform
Claude Code desktop	Claude Code	Visual diffs, parallel sessions	macOS, Windows, Linux beta
Claude Code web	Claude Code	Cloud sessions, parallel tasks	Browser, mobile apps
Claude Code IDE extensions	Claude Code	Inline diffs, plan review	VS Code, JetBrains
Codex apps and extension	Codex	Same agent across surfaces	ChatGPT apps, IDE, Cloud
ACP editors	Claude Code, Codex, Gemini CLI, many more	Agent panel, diffs	Zed, JetBrains, VS Code, Neovim
Conductor	Claude Code, Codex, Cursor	Parallel isolated workspaces	Mac
opcode	Claude Code	Sessions, cost tracking, checkpoints	Desktop, build from source

ForgeCode does not appear in Zed's list of ACP agents as of October 20, 2026, so none of the editor panels above can drive it directly today. For Forge users, the practical visual surfaces are the board on forgecode.dev's hosted product, if you are in that program, and the pull request.

First-party apps: the most complete Forge GUI equivalents

Claude Code is the clearest example of a terminal agent that grew a full GUI without giving up the terminal. The desktop app is described as a place to "review diffs visually, run multiple sessions side by side, schedule recurring tasks, and start cloud sessions," and running /desktop in a terminal session hands it over to the app. The desktop app requires a paid Claude subscription. Each surface uses the same engine, so your CLAUDE.md, settings and MCP servers carry across.

Codex takes a similar approach. The same agent is available as the Codex CLI, a Codex IDE extension, Codex Cloud and inside the ChatGPT desktop and web apps, so you can start in the terminal and review elsewhere.

ACP editors: a GUI for many agents at once

The Agent Client Protocol is the closest thing to a universal Forge GUI. ACP is an open standard that lets "any agent" plug into "any editing environment", much as the Language Server Protocol did for language tooling. Zed created it. JetBrains IDEs, VS Code, Neovim, Emacs and several smaller clients now support it. On the agent side the list is long: Claude Code, Codex, Gemini CLI, OpenCode, Goose, GitHub Copilot, Cline and many more.

If your terminal agent speaks ACP, an ACP editor gives you a visual agent panel and a real diff view without anyone having to build a dedicated GUI.

Multi-agent managers: a GUI for parallel work

Tools like Conductor exist because the hard part of agentic coding is no longer one agent, it is five. Conductor runs Claude Code, Codex and Cursor agents in parallel on your Mac, each in an isolated workspace, and lets you "see at a glance what they're working on, then review and merge their changes." opcode is a community desktop app for Claude Code with session management, custom agents, cost tracking and checkpoints with a diff viewer. It is AGPL-3.0 licensed, not affiliated with Anthropic, and currently built from source.

These are good at orchestration. They are still views of the agent's own work, which brings us to the gap.

Why a Forge GUI over the agent is not the same as code review

Every interface in the table above shows you what the agent did. None of them gives you an independent judgment on whether it is correct. That is a review problem, and a nicer window does not solve it.

The usual shortcut is to ask the same agent to check its own work. That is the weakest review available. If the model misread a function's contract while writing the code, it will misread it again while reviewing, because the assumption that caused the bug is still in its context. Ask twice and you get two different reviews with different severities. Nothing carries over to the team either: your teammate's agent grades to a different standard than yours.

Three things are missing from any Forge GUI that only wraps the agent:

• Independence. A reviewer that did not write the code and does not share its assumptions.
• Consistency. The same standard on every pull request, whoever or whatever opened it.
• Enforcement. A local app is opt-in. A required check on the pull request is not.

The GitHub pull request is the Forge GUI that already works

GitHub already provides the visual layer: a diff, line-anchored comments, a status check, an approval and a permanent record. What it needs is a reviewer good enough to fill it. That is the job of an AI code reviewer running GitHub PR review on every change.

Macroscope installs as a GitHub App. When a branch from ForgeCode, Claude Code, Codex or a human lands as a pull request, Macroscope reviews it and posts into the surfaces your team already uses:

Forge GUI need	Macroscope on GitHub
A readable diff with findings anchored to lines	Inline review comments on the pull request
A plain-language account of the change	An AI PR summary
A pass or fail signal you can gate on	A GitHub check, plus Check Run Agents for your own rules
A way to act on a finding	Fix It For Me, the code fixer AI that opens a fix PR
Less human time on safe changes	Approvability, which auto-approves low-risk PRs
A durable, team-wide record	The Macroscope web app and Status commit summaries and digests

The important property is that none of this depends on which agent wrote the code. That makes the pull request the one Forge GUI that works the same for every terminal agent, including the ones that have no GUI of their own.

On quality: on Macroscope's own Code Review Benchmark of 118 real production bugs across 8 languages, Macroscope detected 48.3% (57/118), CodeRabbit 45.8% and Cursor Bugbot 42.4%. Greptile detected 23.6% of the 72 bugs it was evaluated on, and Graphite Diamond 18.3%. It is Macroscope's benchmark, so verify on your own code. Separately, Code Review v3 reports 98% review-comment precision, which matters because a reviewer people learn to scroll past catches nothing.

How do you add a Forge GUI review layer to a ForgeCode workflow?

Push the branch your terminal agent produced and let GitHub code review run on the pull request, and optionally run the same review locally first. Forge does not need a plugin for the pull request path, because the reviewer only sees a diff.

1. Install the Macroscope GitHub App and pick your repositories. Every new pull request gets inline findings, a PR summary and a check. The walkthrough is set up AI code review on GitHub in 5 minutes.
2. Install the Macroscope CLI if you want feedback before you push:

curl -sSL https://raw.githubusercontent.com/prassoai/macroscope-local/main/install.sh | bash

3. Run it next to Forge. From the repository:

macroscope codereview                 # full-screen review in the terminal
macroscope codereview --base main     # pick the comparison ref
macroscope codereview --mode precise  # choose a detection mode for this run
macroscope codereview --raw           # stream issue_event=<json> records for scripts

By default the CLI reviews an isolated snapshot of your branch, including uncommitted changes, so you can keep working while it runs. --isolate=false reviews the working tree in place.

Be clear about what is supported. The installer adds codereview and autoloop commands inside Claude Code, Codex, Cursor and OpenCode. ForgeCode is not one of those four, so with Forge you run macroscope codereview in a terminal beside it, call --raw from your own scripts or hooks, or rely on GitHub PR review after you push. All three work. None of them is a one-command Forge plugin.

Terminal review vs a visual Forge GUI: why you want both

Local review raises the floor and pull request review enforces it, and they are only worth combining if they run the same engine. If your local check is weaker than your PR check, a clean local pass tells you nothing.

	Terminal review	GitHub PR review
When it runs	Before you push, on demand	On every pull request, automatically
Reviews uncommitted work	Yes, in an isolated snapshot	No, it reviews the PR diff
Who sees the findings	You, or the agent calling it	The whole team, on the PR
Can it block a merge	No	Yes, as a required check
Billing	Agent Credits, $0.01 each, 1,000 free per month	Per KB reviewed, by detection mode

For unattended local passes, the autoloop command reviews, fixes valid findings, commits and re-reviews, up to five iterations. Keep the GitHub check on regardless. See how to make AI code review a required check on GitHub.

Forge GUI review layer vs CodeRabbit vs Greptile

If you are choosing an AI code reviewer to sit behind a terminal agent, compare how each one reviews local work, where its findings show up, and how it bills. All figures below were read from each vendor's own pricing page and docs on October 20, 2026.

	Macroscope	CodeRabbit	Greptile
CLI	Yes	Yes	Yes
Local WIP	Yes	Yes	No
Pricing	$0.05/KB in Balanced (default)	$24/dev/mo (annual)	$30/seat/mo
Git hosts	GitHub	GitHub, GitLab, more	GitHub, GitLab, more

The details behind the short cells: CodeRabbit Essentials is $24 per developer per month billed annually or $30 monthly, with hourly review limits per developer and $0.25 per reviewed file past them. Greptile Pro includes 50 credits per seat, then $1 per extra credit, and Greptile also supports Bitbucket and Gitea, with self-hosting on Enterprise. Greptile's CLI docs say it reviews committed, unmerged changes and ignores uncommitted ones. Macroscope's other modes are Budget at $0.025, Precise at $0.06 and Ultra at $0.20 per KB.

Macroscope is GitHub-only. If your code lives in GitLab, Bitbucket or Azure DevOps, check that first. For more detail: CodeRabbit pricing, best CodeRabbit alternatives, Greptile pricing and Greptile alternatives.

From finding to fix in the pull request, the Forge GUI you already have

The visual layer earns its keep when a finding turns into a fix without a round trip through the terminal. Reply to a Macroscope review comment asking for a fix and Fix It For Me creates a branch from your feature branch, commits the change and opens a PR for you to review. It uses your GitHub Actions results to validate the fix and tries to address failures, and it can auto-merge once checks pass if you ask it to.

That closes a loop a Forge GUI over the agent leaves open. You do not have to paraphrase a review comment back into your terminal agent and hope the meaning survives. Fixes are billed in Agent Credits.

How much does a Forge GUI review layer cost next to a terminal agent?

Macroscope has no per-seat fee: GitHub code review is billed per KB of diff reviewed, and CLI reviews and agent work are billed in credits.

Macroscope product	Price
Code review, Budget mode	$0.025 per KB
Code review, Balanced mode (default)	$0.05 per KB
Code review, Precise mode	$0.06 per KB
Code review, Ultra mode	$0.20 per KB
Minimum per GitHub review	10 KB, billed at the mode's rate
CLI reviews, Agent and Fix It For Me	$0.01 per credit, 1,000 credits free per month
Status	$0.05 per commit

A typical 19 KB pull request costs about $0.95 in Balanced mode. Every new workspace gets $100 in usage credit with no card required, and Macroscope is free for qualified non-commercial open source. You can cap spend per review and set a monthly budget; see pricing and detection modes.

The reason this matters for terminal agents is simple arithmetic. When an agent writes most of the diff, the amount of code to review stops tracking the number of people. A seat-based bill charges for headcount; a usage-based bill charges for the code that was reviewed. More on that in usage-based pricing for AI code review.

Which Forge GUI should you pick?

Pick the agent interface for how you like to work, and pick the review layer for what has to be true before code merges. They are separate decisions.

• You run ForgeCode in the terminal and like it there. Keep it. Add macroscope codereview before you push and GitHub PR review after.
• You want a desktop app for your agent. Claude Code's desktop app and Codex in the ChatGPT desktop app are the most complete first-party options today.
• You want one editor for many agents. Use an ACP editor such as Zed or a JetBrains IDE, and check that your agent is on the ACP list.
• You run several agents in parallel. A manager like Conductor helps you watch and merge them. The more parallel branches you have, the more you need an independent reviewer on each PR.
• You want ForgeCode's hosted board. Ask Tailcall for a demo; it is a separate product from the CLI.

Whichever you choose, the pull request is where the work is judged. For running agents in parallel without local setup, see how to run coding agents in parallel in the cloud, and for reviewing output from specific agents, see AI code review for Claude Code, Codex, Cursor and OpenCode.

Frequently Asked Questions

Is there a Forge GUI for ForgeCode?

Not for the open-source CLI. ForgeCode runs as an interactive terminal UI, as one-shot commands with -p, and through a ZSH plugin that routes : lines to the agent, and its README documents no desktop app, web interface or IDE extension. Separately, forgecode.dev now markets a hosted "software factory" whose product shots show a board-style interface. That is available by demo and is a different product from the CLI.

What is the best GUI for a terminal AI coding agent?

It depends on the agent. Claude Code has the most complete first-party set: a desktop app with visual diff review, a web version, and VS Code and JetBrains extensions. Codex runs in the ChatGPT desktop and web apps, an IDE extension and Codex Cloud. For agents without their own GUI, an Agent Client Protocol editor such as Zed or a JetBrains IDE provides a visual panel, provided the agent supports ACP.

Can I use ForgeCode in Zed or another ACP editor?

Not directly as of October 20, 2026. Zed's ACP page lists dozens of agents, including Claude Code, Codex, Gemini CLI, OpenCode and Goose, but ForgeCode is not among them. Check the list again before you decide, since agents are added often.

Why not just ask my terminal agent to review its own code?

Because the model that wrote a bug is the worst-placed reviewer to find it. If it misunderstood a function's contract while writing the code, it will misunderstand it again while reviewing, and asking twice gives two different answers. An independent AI code reviewer does not share those assumptions, applies the same standard on every pull request and can fail a check.

Can Macroscope review code written by ForgeCode?

Yes. Macroscope reviews GitHub pull requests regardless of what wrote the code, so a branch produced by ForgeCode gets the same GitHub PR review as anything else. Locally, run macroscope codereview beside your Forge session or call it with --raw from your own scripts. The CLI's built-in agent commands cover Claude Code, Codex, Cursor and OpenCode, not ForgeCode.

Does the Macroscope CLI review uncommitted changes?

Yes. By default macroscope codereview reviews an isolated snapshot of your branch that includes uncommitted work, so you can keep editing while it runs. Pass --isolate=false to review the working tree in place, --base to choose the comparison ref and --mode to pick a detection mode.

What are the best CodeRabbit alternatives for a terminal agent workflow?

Macroscope is the closest alternative if you want terminal review and GitHub PR review from one engine without a per-seat fee. CodeRabbit Essentials is $24 per developer per month billed annually or $30 monthly, with hourly review limits and $0.25 per reviewed file past them. Macroscope bills code review per KB reviewed and CLI reviews in credits. See best CodeRabbit alternatives.

What about Greptile alternatives if I work in long uncommitted stretches?

That is where Greptile's CLI is a poor fit: its docs say greptile review covers committed, unmerged changes and ignores uncommitted ones, so you commit before every review. Macroscope's CLI reviews uncommitted work in an isolated snapshot. Greptile Pro is $30 per seat per month with 50 credits per seat and $1 per extra credit. See Greptile alternatives.

Is there a code fixer AI that patches findings instead of listing them?

Yes. Reply to a Macroscope review comment asking for a fix and Fix It For Me opens a fix PR from your feature branch, validates it against your GitHub Actions results and can auto-merge once checks pass if you ask. Details are in Fix It For Me.

What is the best AI code reviewer to pair with a terminal coding agent?

Look for four things: it reviews uncommitted work locally, it posts into the pull request where the team can see it, it can fail a check, and it bills for work rather than for people. On Macroscope's own benchmark of 118 real production bugs, Macroscope detected 48.3%, CodeRabbit 45.8% and Cursor Bugbot 42.4%. It is Macroscope's benchmark, so test on your own code.

How much does visual AI code review cost for a terminal agent workflow?

Macroscope code review is $0.05 per KB in the default Balanced mode, with Budget at $0.025, Precise at $0.06 and Ultra at $0.20 per KB, and a 10 KB minimum per GitHub review. A typical 19 KB pull request is about $0.95 in Balanced. CLI reviews use Agent Credits at $0.01 each with 1,000 free per month. New workspaces get $100 in usage credit with no card, and there is no per-seat fee.

Is a Forge GUI the same as ForgeGUI.com?

No. ForgeGUI.com is an AI tool that generates game assets such as UI sets, icons and thumbnails for Roblox, Unity, Unreal and other engines. It has nothing to do with coding agents. For every product that answers to "Forge GUI", see Forge GUI: what it means and the best options for each Forge.