A chat app for the AI agents already on your computer

Highlight a line.
Ask about it.
The answer stays in place.

Gloss runs on Claude Code, Codex, Gemini CLI, Pi and Cursor Agent. It shows their conversations like a proper chat client and adds one thing they lack: select any text in a reply, ask about it, and the answer appears right under that sentence — without derailing the conversation.

Download Gloss
See how it works

· Latest release · View source

Free and open source. Everything stays on your machine. No API keys — it uses the agents you're already signed into.

Why this exists
Asking “wait, what does this bit mean?” in a normal chat means copy, paste, a new message — and now the conversation is about that one line instead of your actual question. Gloss keeps the question attached to the text it is about. To the agent, nothing changed: it is one more message in the same chat.
5agents supported
0API keys to paste
100%local, open source
Try it — select any text in the reply below, then ask Interactive demo · replies are pre-written
Today
Yesterday
G
Gloss
via Claude Code
Sourdough starter help claudeClaude Sonnet 4.5 2 clarifications
My sourdough starter smells like nail polish remover and isn't rising much. What's going on?
How a clarification works

Three steps. The agent sees an ordinary message.

1

Select

Highlight any text in a reply — a sentence, a list item, a word in a heading, a line of code. An Ask about this button appears over the selection.

2

Ask

A small composer opens under that paragraph. Your question is sent to the agent like any other message: the quoted text plus what you asked. Same session, same memory.

3

Read in place

The answer appears under the sentence it is about — collapsible, with follow-ups threaded inside. You can highlight text in that answer and ask again, as deep as you need.

Also in the box

Artifacts

When the agent writes a page, drawing, diagram, document or file, it shows as a card and opens in a side pane — safe preview, versions, save to disk.

Also in the box

Attachments & search

Drop images and text files into a message. Search every conversation at once — clarifications included. Pin and tag the ones that matter.

Also in the box

Export

Save a reply or a whole conversation as Markdown, with each clarification folded in right under the sentence it was asked about.

Supported agents

Bring the agents you already pay for.

Gloss never talks to a model API. Each message runs the agent's own command-line tool in the background, inside a private folder, so nothing shows up in your real projects. Pick the agent and model per conversation.

AgentCommandWeb searchImagesModels
Claude CodeclaudeOn / offYesPick per turn
Codex CLIcodexOn / offYesPick per turn
Gemini CLIgeminiAlways onYesPick per turn
Pipi—YesPick per turn
Cursor Agentcursor-agentOn / offYesAuto

Needs at least one of these installed: claude, codex, gemini, pi or cursor-agent. Installed via npm, Homebrew or Cargo? Found automatically, even when you launch from the Dock.

Download

Get Gloss

macOS, Windows and Linux. Builds are produced by GitHub Actions and published on the releases page; this list is read live from the latest release.

Download Gloss All releases on GitHub

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