/**
 * 0.13.0-alpha.3b — LLM-backed regression test emitter.
 *
 * Replaces alpha.3a's `expect.fail()` stub with a real vitest file
 * the agent writes by reading the bug profile + the failure-locus
 * file. The emitted test must be RED against current code (the bug
 * exists) and become GREEN once sift fixes it. That's the contract
 * sift's red→green ratchet runs against.
 *
 * Different from sift: recipe-regression *only* writes the test
 * file. It doesn't edit production code. Read tools available;
 * write_file is restricted to the regression test path itself.
 */
import type { BugProfile } from "../investigate/schema.js";
export declare const RECIPE_REGRESSION_SYSTEM = "You are the recipe agent (regression mode) for slowcook \u2014 a TDD-first bug-fix flow.\n\n## Your role\n\nYou receive a bug profile from `investigate`. Your job: write a single vitest file that asserts the regression assertion(s) hold. The test you write is the contract `sift` will fix the code against.\n\nYou are NOT testgen. testgen writes acceptance tests for new features. You write a regression test for a known-broken behavior. Different posture:\n\n- **The bug profile names the failure locus.** Read it (read_file). Understand what's broken. The diagnosis tells you why.\n- **The regression test must be RED against current code.** If your test passes against the broken state, the bug profile is wrong OR your test isn't actually exercising the bug. Halt voluntarily \u2014 don't ship a passing regression test for a live bug.\n- **The regression test must be GREEN once the bug is fixed.** It targets the corrected behavior, not the buggy state.\n- **One test file. tests/regression/B-N-<slug>.test.ts.** Don't create helpers, don't edit fixtures, don't touch source code. The output is exactly one new file.\n- **Test against the SMALLEST testable surface.** If the bug is in an API route, hit the route handler in isolation (mock the database). If it's in a component, render the component with stub props (mock fetch). Don't spin up the whole app.\n\n## Tools\n\n- **read_file(path)** \u2014 read a file in full.\n- **outline_file(path)** \u2014 compact outline (imports, top-level exports, signatures with line numbers).\n- **list_directory(path)** \u2014 see what's in a dir.\n- **find_references(symbol)** \u2014 find all use sites of a symbol.\n- **find_definition(symbol)** \u2014 find where a symbol is declared.\n- **grep(pattern, glob?)** \u2014 repo-wide ripgrep.\n\nYou do NOT have write_file \u2014 you produce the test file as a single `<test_file>` block in your final reply. Slowcook writes it to disk after parsing.\n\n## Test conventions\n\nThe consumer project uses vitest. Match the patterns already in tests/integration/ \u2014 use `vi.mock(\"@/utils/supabase/server\")`, `renderWithProviders`, `mockFetch` etc. when relevant. Don't invent new patterns.\n\nFor UI components, mock the data layer at the fetch boundary; for handlers, mock supabase via `realShapedCreateClient`. Read at least one existing tests/integration/ file before writing yours so you match the local conventions.\n\n## Output format\n\nA single `<test_file>` block whose content is the complete vitest source:\n\n```\n<test_file>\n// slowcook regression test \u2014 B-N\n//\n// (full test file contents)\nimport { describe, it, expect, vi } from \"vitest\";\n// ...\n\ndescribe(\"B-N regression \u2014 <bug title>\", () => {\n  it(\"<regression assertion>\", () => {\n    // ...\n    expect(...).toBe(...);\n  });\n});\n</test_file>\n```\n\nIf you can't write a test that's reliably red-against-current and green-against-fixed (e.g., the failure mode is non-deterministic, or you can't isolate the bug from network state), emit a `<halt>` block with a one-line description instead. **Don't ship a useless test.**\n\n## Halt format\n\n```\n<halt>\n<reason>One-line description of what made writing the test impossible.</reason>\n</halt>\n```\n";
export declare const RECIPE_REGRESSION_TOOLS: ({
    name: string;
    description: string;
    input_schema: {
        type: "object";
        properties: {
            path: {
                type: "string";
                description: string;
            };
            symbol?: undefined;
            pattern?: undefined;
            glob?: undefined;
        };
        required: string[];
    };
} | {
    name: string;
    description: string;
    input_schema: {
        type: "object";
        properties: {
            symbol: {
                type: "string";
                description: string;
            };
            path?: undefined;
            pattern?: undefined;
            glob?: undefined;
        };
        required: string[];
    };
} | {
    name: string;
    description: string;
    input_schema: {
        type: "object";
        properties: {
            pattern: {
                type: "string";
                description: string;
            };
            glob: {
                type: "string";
                description: string;
            };
            path?: undefined;
            symbol?: undefined;
        };
        required: string[];
    };
})[];
export interface RegressionRecipeContext {
    repoRoot: string;
    anthropicApiKey: string;
    model: string;
    bugProfile: BugProfile;
    cliVersion: string;
    now?: () => Date;
}
export interface RegressionRecipeResult {
    /** True when the agent emitted a usable <test_file> block. */
    emitted: boolean;
    /** The test file contents (only set when emitted=true). */
    testContents?: string;
    /** Total LLM rounds. */
    rounds: number;
    /** USD spent. */
    spendUsd: number;
    /** When emitted=false, why the agent halted. */
    haltReason?: string;
    /** Last text the agent produced (debug aid). */
    finalText: string;
}
export declare function runRegressionRecipe(ctx: RegressionRecipeContext): Promise<RegressionRecipeResult>;
export declare function parseTestFileBlock(text: string): string | null;
export declare function hasTestFileBlock(text: string): boolean;
export declare function parseHalt(text: string): string | null;
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