/**
 * Composer-2.5 code-mode steering: declaration-time consolidation doctrine and
 * a post-success transition note. Spiked live (paired A/B, matched workspaces):
 * declaration-only conditioning cut mean code calls 1.667 -> 1.333; adding the
 * success-result note took correct-next-action from 2/6 to 6/6. System-prompt
 * wording alone was tested and killed (no reliable improvement), so this file
 * deliberately conditions the tool declaration and the tool RESULT, not the
 * system prompt.
 *
 * Cache safety: the declaration prefix is applied when a fresh physical Run is
 * assembled (before freeze); resumes reuse the frozen Run so declared bytes
 * never change mid-session. The success note is an append-only suffix on one
 * MCP tool result - the sanctioned mid-session channel.
 */
/** Composer-2.5 family: optional provider prefix (cursor-code/), -fast
 * variant, and dated suffixes tolerated via \b. Deliberately narrow: composer-1
 * and future composer-3 do not match. */
export declare const COMPOSER_CODE_GUIDANCE_MODEL_RE: RegExp;
/** Kill switch: ON by default; CURSOR_OPENCODE_COMPOSER_CODE_GUIDANCE=0
 * disables both rails. Read per call so tests can flip env between cases. */
export declare function composerCodeGuidanceEnabled(env?: Record<string, string | undefined>): boolean;
/** Prefix the code tool description with the consolidation block when the
 * model is composer-2.5 and code mode is active. Idempotent; returns the
 * input unchanged for every other model. */
export declare function withComposerCodeGuidance(description: string, modelId: string, codeModeActive: boolean): string;
/** The transition note for a successful, nonempty composer code result, or
 * null when the note must not be applied (other model, kill switch, error,
 * empty value - those keep recovery freedom). */
export declare function composerCodeSuccessNote(modelId: string, value: string | undefined, error: string | undefined): string | null;