/**
 * LSP Auto-Diagnostics Hook
 *
 * Tracks files modified by Write/Edit tools and automatically runs
 * TypeScript/Python diagnostics on them, injecting results into the system prompt.
 *
 * Pattern inspired by oh-my-openagent's omo-lsp PostToolUse hook,
 * adapted for agent-hive's plugin architecture.
 *
 * The diagnostics run on `experimental.chat.system.transform` (before the next
 * LLM call), not synchronously after every edit — this keeps the experience
 * snappy while still catching type errors proactively.
 */
export interface LspDiagnosticsState {
    /** Set of file paths modified by Write/Edit since last check */
    modifiedFiles: Set<string>;
}
export declare function createLspDiagnosticsState(): LspDiagnosticsState;
/**
 * Call from a `tool.execute.after` hook to track files changed by write/edit
 * tools.
 */
export declare function trackFileModification(state: LspDiagnosticsState, tool: string, args: Record<string, unknown> | undefined): void;
/**
 * Run `tsc --noEmit` and extract diagnostics relevant to the tracked files.
 *
 * Returns a formatted diagnostics block, or `null` if everything is clean.
 */
export declare function runTypeScriptDiagnostics(state: LspDiagnosticsState, projectDir: string): string | null;
/**
 * Run pyright diagnostics on tracked Python files.
 *
 * Returns a formatted diagnostics block, or `null` if everything is clean
 * or pyright is not available.
 */
export declare function runPythonDiagnostics(state: LspDiagnosticsState, projectDir: string): string | null;
/** Reset state — call from `experimental.session.compacting`. */
export declare function resetDiagnostics(state: LspDiagnosticsState): void;