/**
 * Context-overflow detection — merged from Pi's `utils/overflow.ts` (v0.80.3)
 * and moss's existing Chinese + inline patterns.
 *
 * Used by `isContextOverflowError` (errors.ts) and `matchContextLengthExceeded`
 * (error-classify.ts) to trigger compaction / escalation when the prompt
 * exceeds the model's context window.
 *
 * Pi contributes precise per-provider regex patterns (Anthropic, OpenAI,
 * Bedrock, Google, xAI, Groq, OpenRouter, Together, llama.cpp, LM Studio,
 * GitHub Copilot, MiniMax, Kimi, DS4, Cerebras, Mistral, z.ai, Ollama).
 * moss contributes Chinese patterns (上下文过长, 输入超限, tokens过多, etc.)
 * and a few moss-specific English patterns.
 */
/**
 * Detect context-overflow from an error message string. Tests against all
 * known provider patterns (Pi's 25+ regexes + moss's Chinese + moss-specific).
 * Case-insensitive.
 */
export declare function isOverflowMessage(message: string): boolean;
/** Exported for testing — returns the full pattern list. */
export declare function getOverflowPatterns(): RegExp[];
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