zeph-core 0.22.3

Core agent loop, configuration, context builder, metrics, and vault for Zeph
Documentation 
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// SPDX-FileCopyrightText: 2026 Andrei G <bug-ops>
// SPDX-License-Identifier: MIT OR Apache-2.0

use std::fmt::Write as _;
use std::future::Future;
use std::pin::Pin;

use zeph_commands::{CommandError, LspAccess};

use super::command_macros::delegate_cmd;
use super::{Agent, error::AgentError};
use crate::channel::Channel;

impl<C: Channel> Agent<C> {
    /// Channel-free version for use via [`zeph_commands::LspAccess`].
    pub(super) async fn handle_lsp_status_as_string(&mut self) -> Result<String, AgentError> {
        let mut out = String::new();

        match self.services.session.lsp_hooks.as_ref() {
            None => {
                let _ = writeln!(out, "LSP context injection: disabled");
                let _ = writeln!(out);
                let _ = writeln!(
                    out,
                    "Enable with `--lsp-context` flag or set `lsp.enabled = true` in config."
                );
                let _ = writeln!(
                    out,
                    "Requires mcpls configured under [mcp.servers] (install: cargo install mcpls)."
                );
            }
            Some(lsp) => {
                let available = lsp.is_available().await;
                let _ = writeln!(out, "LSP context injection: enabled");
                let _ = writeln!(
                    out,
                    "MCP server: {} ({})",
                    lsp.config.mcp_server_id,
                    if available {
                        "connected"
                    } else {
                        "not connected"
                    }
                );
                let _ = writeln!(out, "Token budget per turn: {}", lsp.config.token_budget);
                let _ = writeln!(out);
                let _ = writeln!(out, "Hooks:");
                let _ = writeln!(
                    out,
                    "  diagnostics-on-save: {}",
                    if lsp.config.diagnostics.enabled {
                        "enabled"
                    } else {
                        "disabled"
                    }
                );
                let _ = writeln!(
                    out,
                    "  hover-on-read:       {}",
                    if lsp.config.hover.enabled {
                        "enabled"
                    } else {
                        "disabled"
                    }
                );
                let _ = writeln!(out);
                let stats = lsp.stats();
                let _ = writeln!(out, "Session statistics:");
                let _ = writeln!(
                    out,
                    "  diagnostics injected: {}",
                    stats.diagnostics_injected
                );
                let _ = writeln!(out, "  hover injected:       {}", stats.hover_injected);
                let _ = writeln!(
                    out,
                    "  notes dropped (budget): {}",
                    stats.notes_dropped_budget
                );
            }
        }

        Ok(out.trim_end().to_owned())
    }
}

impl<C: Channel + Send + 'static> LspAccess for Agent<C> {
    // ----- /lsp -----

    delegate_cmd!(lsp_status, handle_lsp_status_as_string => String);
}