zed-industries/zed · error · anyhow::Error

Agent panel is no longer available

Error message

Agent panel is no longer available

What it means

Error "Agent panel is no longer available" thrown in zed-industries/zed.

Source

Thrown at crates/agent_ui/src/agent_panel.rs:4867

                        .unwrap_or_else(|| panel.selected_agent.clone());
                    resolved_agent.id()
                })
            })??;

            Ok(agent::SiblingThreadInfo {
                title,
                agent_id: resolved_agent_id.0.to_string(),
                model: request.model,
                warning: worktree_warning,
            })
        })
    }

    fn list_available_agents(&self, cx: &mut App) -> Result<agent::AvailableAgents> {
        let panel = self
            .panel
            .upgrade()
            .ok_or_else(|| anyhow!("Agent panel is no longer available"))?;

        let mut agents = Vec::new();

        // Native Zed agent — always available, and we can enumerate models
        // directly from the language model registry.
        let native_models = {
            let registry = LanguageModelRegistry::read_global(cx);
            let default = registry.default_model();
            let mut models = Vec::new();
            for provider in registry.providers() {
                if !provider.is_authenticated(cx) {
                    continue;
                }
                let provider_id = provider.id();
                for model in provider.provided_models(cx) {
                    let id = format!("{}/{}", provider_id.0, model.id().0);
                    let is_default = default
                        .as_ref()

View on GitHub (pinned to bc538def45)

When it happens

Trigger: Thrown at crates/agent_ui/src/agent_panel.rs:4867 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of zed-industries/zed@bc538def45 (2026-08-16). Data as JSON: /api/errors/75efd48228a8e8a9. Report an issue: GitHub.