/**
 * Autonomous memory — shared constants.
 *
 * Single source of truth for defaults, limits, and magic strings used across
 * the memory store, tools, flush phase, and tests. Changing a value here
 * changes it everywhere — no hunting through files.
 */
/** Default embedding provider when {@link process.env.MEMORY_EMBEDDINGS_PROVIDER} is unset. */
export declare const DEFAULT_MEMORY_PROVIDER: "bedrock";
/** Default embedding model (Titan v2 — AWS-native, 6× cheaper than Cohere v4). */
export declare const DEFAULT_MEMORY_MODEL = "amazon.titan-embed-text-v2:0";
/** Default vector width (Titan v2 supports 256 / 512 / 1024). */
export declare const DEFAULT_MEMORY_DIMENSIONS = 1024;
/** Default Postgres table name; can be overridden via env for dev/prod sharing. */
export declare const DEFAULT_MEMORY_TABLE = "agent_memories";
/** Default Postgres schema. */
export declare const DEFAULT_MEMORY_SCHEMA = "public";
/** Phase values used by the flush-phase gate. */
export declare const MEMORY_PHASE_NORMAL = "normal";
export declare const MEMORY_PHASE_FLUSHING = "memory_flushing";
/**
 * Search defaults — aligned with upstream's upstream defaults.
 *
 * Sources:
 * - `upstream reference` → maxResults=6
 * - `upstream reference` → maxInjectedChars=4000
 *
 * Keeping these in lockstep with upstream means the mandatory-recall tool
 * description, budget clamps, and eval corpora line up with upstream's
 * tuning — we inherit their calibration instead of re-tuning from scratch.
 */
export declare const DEFAULT_MAX_SEARCH_RESULTS = 6;
export declare const DEFAULT_MIN_SCORE = 0.1;
export declare const DEFAULT_MAX_INJECTED_CHARS = 4000;
/** Hybrid retrieval weights — 70% vector cosine, 30% BM25 / ts_rank text score. */
export declare const HYBRID_VECTOR_WEIGHT = 0.7;
export declare const HYBRID_TEXT_WEIGHT = 0.3;
/**
 * Phase 2 rerank defaults — ported from upstream.
 *
 * Sources:
 * - `upstream reference` → lambda=0.7
 * - `upstream reference` → halfLifeDays=30
 *
 * Both features are opt-in (enabled=false by default) — the Phase 2
 * features are layered on top of hybrid search and don't change default
 * behavior for callers that upgrade in place.
 */
export declare const DEFAULT_MMR_ENABLED = false;
export declare const DEFAULT_MMR_LAMBDA = 0.7;
export declare const DEFAULT_TEMPORAL_DECAY_ENABLED = false;
export declare const DEFAULT_TEMPORAL_DECAY_HALF_LIFE_DAYS = 30;
export declare const DEFAULT_RECALL_TRACKING_ENABLED = false;
export declare const DEFAULT_CITATIONS_MODE: "auto";
/**
 * Flush trigger margins (token counts) — aligned with upstream upstream.
 *
 * Sources:
 * - `upstream reference` → softThreshold=4000
 * - `upstream reference` → reserveFloor=20000
 */
export declare const DEFAULT_FLUSH_SOFT_THRESHOLD_TOKENS = 4000;
export declare const DEFAULT_FLUSH_RESERVE_FLOOR_TOKENS = 20000;
/** Hard cap on append calls per flush phase — prevents runaway writes. */
export declare const DEFAULT_MAX_APPENDS_PER_FLUSH = 20;
/**
 * Hard cap on agentic loop iterations inside {@link runMemoryFlush}.
 *
 * Each iteration = one model.invoke() followed by execution of any
 * `memory_append` tool_calls it emits. Mirrors upstream's flush-plan
 * loop cap; 8 is enough for ~2–3 reflections of batched notes while
 * protecting against runaway cycles if the model refuses to stop.
 */
export declare const DEFAULT_MAX_FLUSH_ITERATIONS = 8;
/** Path prefix enforced on every append. Paths outside this are rejected. */
export declare const MEMORY_PATH_PREFIX = "memory/";
/** Tool names — kept as constants so server code + tests never drift. */
export declare const MEMORY_SEARCH_TOOL_NAME = "memory_search";
export declare const MEMORY_GET_TOOL_NAME = "memory_get";
export declare const MEMORY_APPEND_TOOL_NAME = "memory_append";
/**
 * Mandatory-recall description — the single most load-bearing line in the
 * whole memory system. Do not soften, shorten, or reword without an eval run.
 *
 * Ported VERBATIM from upstream `extensions/memory-core/src/tools.ts:186`.
 * The wiki/corpus clause is retained even though Phase 1 doesn't ship
 * compiled-wiki supplements — keeping the string identical means upstream's
 * eval corpora remain drop-in valid.
 */
export declare const MEMORY_SEARCH_DESCRIPTION: string;
/**
 * Ported VERBATIM from upstream `extensions/memory-core/src/tools.ts:322`.
 */
export declare const MEMORY_GET_DESCRIPTION: string;
/**
 * `memory_append` tool description.
 *
 * Phase 1 historically wrote to a single date-keyed file
 * (`memory/YYYY-MM-DD.md`), ported verbatim from upstream. That scheme
 * is now replaced by an 8-path canonical whitelist — see
 * {@link ./paths.MEMORY_ALL_PATHS}. The tool description no longer
 * names a specific file; the flush-turn prompt renders the full rubric
 * inline so the model sees every writable path at inference time.
 */
export declare const MEMORY_APPEND_DESCRIPTION: string;
/**
 * Reply token that signals the flush turn produced no user-visible output.
 * Ported VERBATIM from upstream `src/auto-reply/tokens.ts:4`.
 */
export declare const SILENT_REPLY_TOKEN = "NO_REPLY";
/**
 * Placeholder replaced at flush time with the rendered path-rubric for
 * the caller's scope. See `renderPathsRubric()` in `./paths.ts` and
 * `resolveFlushPrompts()` in `../prompts/memoryFlushPrompt.ts`.
 *
 * Kept as a unique sentinel so `replaceAll` is safe even if the rubric
 * content happens to contain regex metacharacters.
 */
export declare const FLUSH_PROMPT_RUBRIC_PLACEHOLDER = "{{MEMORY_PATHS_RUBRIC}}";
export declare const DEFAULT_MEMORY_FLUSH_PROMPT: string;
export declare const DEFAULT_MEMORY_FLUSH_SYSTEM_PROMPT: string;