/**
 * Cost data collector for Babysitter runs.
 *
 * Bridges the Claude Code JSONL parser with the run journal: parses a
 * session file (including subagent files), then writes COST_TRACKED events
 * to the run's journal for later aggregation and reporting.
 */
/**
 * Parse a Claude Code session (main + subagents) and write COST_TRACKED
 * events into the run journal.
 *
 * Each assistant message with usage data becomes a separate journal event,
 * preserving the full token breakdown for fine-grained cost analysis.
 *
 * @param runDir - Absolute path to the run directory (e.g. `.a5c/runs/<runId>`).
 * @param sessionJsonlPath - Absolute path to the main session `.jsonl` file.
 * @returns The number of COST_TRACKED events written to the journal.
 */
export declare function collectCostDataForRun(runDir: string, sessionJsonlPath: string): Promise<number>;
/**
 * Resolve the Claude Code projects directory path for a given session ID.
 *
 * Claude Code stores session JSONL files at:
 * ```
 * ~/.claude/projects/<project-slug>/<sessionId>.jsonl
 * ```
 *
 * Since we don't always know the project slug, this function returns the
 * base Claude Code projects directory. The caller can then search for the
 * session file within the project subdirectories.
 *
 * If a workspace path is provided, the project slug is derived using Claude
 * Code's path-encoding convention (forward slashes and colons replaced with
 * dashes, prefixed with the drive letter on Windows).
 *
 * @param sessionId - The Claude Code session UUID.
 * @param workspacePath - Optional absolute workspace path to derive the project slug.
 * @returns Absolute path to the session `.jsonl` file (when workspace is
 *   provided) or the Claude Code projects directory (when workspace is omitted).
 */
export declare function resolveClaudeCodeSessionDir(sessionId: string, workspacePath?: string): string;
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