/**
 * Phase 2C (0.12.12+) — `.brewing/patterns/` directory.
 *
 * Patterns are short markdown recipes hand-written by the project
 * team that describe project-specific conventions: "how cursor
 * pagination works in this codebase", "the standard handler shape
 * with auth + RLS", "how to write a tier-1 test against
 * mockSupabase". They live at `.brewing/patterns/*.md` and are NOT
 * auto-generated by slowcook — the team owns them.
 *
 * Selective loading: brew injects only the *index* (title + one-line
 * summary per pattern) into its cached prefix. The agent decides
 * which patterns are relevant to the current target and reads the
 * full markdown via the existing `read_file` tool. Index-only is
 * cheap (~50 tokens per pattern); the full body only enters context
 * when the agent asks for it.
 *
 * Pattern file convention:
 *
 *   # <Title>
 *
 *   > <One-line summary, used as the index entry.>
 *
 *   ## When to use
 *   ...
 *   ## Example
 *   ```ts
 *   ...
 *   ```
 *
 * The `# Title` and `> Summary` lines are the parts the index needs;
 * everything else is for the agent's eyes once it `read_file`s the
 * pattern.
 */
export declare const PATTERNS_DIR = ".brewing/patterns";
export interface PatternEntry {
    slug: string;
    title: string;
    summary: string | null;
    path: string;
}
/**
 * Walk `.brewing/patterns/*.md` and return one entry per file.
 * Returns an empty array when the directory doesn't exist (the
 * common case on greenfield projects).
 */
export declare function gatherPatternIndex(repoRoot: string): PatternEntry[];
/**
 * Render the pattern index as a markdown block for the brew system /
 * cached prefix. Returns an empty string when no patterns exist —
 * caller can drop the block entirely.
 */
export declare function renderPatternIndexBlock(patterns: PatternEntry[]): string;
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