---
title: "DF0082: Addressed Client Not Connected"
description: "Tool \"{tool}\" was addressed to client \"{clientId}\", but no connected browser tab has that id and the tool."
canonical_url: "https://devfra.me/errors/df0082"
---
# DF0082: Addressed Client Not Connected

> Tool "\{tool}" was addressed to client "\{clientId}", but no connected browser tab has that id and the tool.

## Message

> Tool "`{tool}`" was addressed to client "`{clientId}`", but no connected browser tab has that id and the tool. Connected clients: `{live}`.

## Cause

A forwarded in-page tool was called with a `client_id` that matches none of the browser tabs currently connected to this devframe (or the tab with that id does not expose the tool). Tab ids survive reloads but not closing the tab, so an id an agent listed earlier may have gone away since.

## Fix

Call `devframe:agent:list-clients` (wire name `devframe_agent_list-clients`; `mcp.clients` in `devframe connect`'s `list-instances`) to get the live ids and retry with one of them, or omit `client_id` to target the most recently focused tab.

## Source

- [`packages/devframe/src/node/client-agent.ts`](https://github.com/devframes/devframe/blob/main/packages/devframe/src/node/client-agent.ts): the forwarded tool's handler throws this when no connected session matches the requested `client_id`.


## Sitemap

See the full [sitemap](https://devfra.me/sitemap.md) for all pages.