/**
 * YAML Frontmatter Parser for MAMA OS Standalone
 *
 * Parses YAML frontmatter from markdown rule files and filters rules
 * by agent context (agentId, tier, channel, keywords). Used by the
 * prompt enhancer to inject only relevant rules into system prompts.
 */
/**
 * Filtering criteria embedded in rule frontmatter.
 * Each field uses OR logic internally; AND logic across fields.
 */
export interface AppliesTo {
    /** Agent IDs this rule applies to */
    agentId?: string[];
    /** Tier levels this rule applies to */
    tier?: number[];
    /** Channel IDs this rule applies to */
    channel?: string[];
    /** Keywords that activate this rule */
    keywords?: string[];
}
/**
 * Runtime context used to match rules against the current agent state.
 */
export interface RuleContext {
    /** Current agent identifier */
    agentId?: string;
    /** Current tier level */
    tier?: number;
    /** Current channel identifier */
    channelId?: string;
    /** Active keywords for the current request */
    keywords?: string[];
}
/**
 * Result of parsing a markdown file with optional YAML frontmatter.
 */
export interface ParsedRule {
    /** Filtering criteria, or null for universal rules (applies to all) */
    appliesTo: AppliesTo | null;
    /** Markdown content with frontmatter stripped */
    content: string;
    /** Original full content including frontmatter (for hashing) */
    rawContent: string;
}
/**
 * Parse YAML frontmatter from a markdown rule file.
 *
 * Detects `---` delimited YAML block at the start of the file,
 * extracts the `applies_to` field (snake_case in YAML → camelCase in TS),
 * and returns the markdown content with frontmatter stripped.
 *
 * On malformed YAML, logs a warning and returns `appliesTo: null`
 * (treating the rule as universal).
 *
 * @param markdownContent - Full markdown file content including frontmatter
 * @returns Parsed rule with filtering criteria and cleaned content
 */
export declare function parseFrontmatter(markdownContent: string): ParsedRule;
/**
 * Check whether a rule's `appliesTo` criteria match the given context.
 *
 * Logic:
 * - If `appliesTo` is null → true (universal rule, always matches)
 * - If `context` is undefined → true (no filtering applied)
 * - OR within each field: e.g., `agentId: ['dev', 'reviewer']` matches either
 * - AND across fields: all present fields must match
 * - Fields missing from `appliesTo` are skipped (not checked)
 *
 * @param appliesTo - Rule filtering criteria (null = universal)
 * @param context - Current agent runtime context (undefined = no filtering)
 * @returns true if the rule should be included
 */
export declare function matchesContext(appliesTo: AppliesTo | null, context: RuleContext | undefined): boolean;
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