import { FileSystem } from "effect";import * as Effect from "effect/Effect"; const isRecord = (value: unknown): value is Record<string, unknown> =>  typeof value === "object" && value !== null && !Array.isArray(value); const stripRepeatedErrorPrefix = (input: string): string => {  let output = input.trim();  while (output.toLowerCase().startsWith("error:")) {    output = output.slice("error:".length).trimStart();  }  return output;}; export const sanitizeCliOutputText = (input: string): string =>  input    // oxlint-disable-next-line eslint/no-control-regex -- boundary: CLI output sanitizer intentionally strips OSC control sequences    .replace(/\u001b\][^\u0007]*(?:\u0007|\u001b\\)/gu, "")    // oxlint-disable-next-line eslint/no-control-regex -- boundary: CLI output sanitizer intentionally strips ANSI control sequences    .replace(/\u001b[@-_][0-?]*[ -/]*[@-~]/gu, "")    // oxlint-disable-next-line eslint/no-control-regex -- boundary: CLI output sanitizer intentionally strips remaining control characters    .replace(/[\u0000-\u0008\u000b\u000c\u000e-\u001f\u007f]/gu, ""); const TOOL_PATH_TOKEN = /^[A-Za-z0-9._-]+$/; const toToolPathSegments = (parts: ReadonlyArray<string>): ReadonlyArray<string> =>  parts    .flatMap((part) => part.split("."))    .map((segment) => segment.trim())    .filter((segment) => segment.length > 0); const isPrefixOf = (prefix: ReadonlyArray<string>, path: ReadonlyArray<string>): boolean =>  prefix.every((segment, index) => path[index] === segment); export interface ToolPathChildEntry {  readonly segment: string;  readonly invokable: boolean;  readonly hasChildren: boolean;  readonly toolCount: number;} export interface ToolPathInspection {  readonly prefixSegments: ReadonlyArray<string>;  readonly exactPath: string | undefined;  readonly matchingToolCount: number;  readonly children: ReadonlyArray<ToolPathChildEntry>;} export const inspectToolPath = (input: {  toolPaths: ReadonlyArray<string>;  rawPrefixParts: ReadonlyArray<string>;}): ToolPathInspection => {  const prefixSegments =    input.rawPrefixParts.length === 0 ? [] : buildToolPath(input.rawPrefixParts).split(".");  const children = new Map<    string,    { invokable: boolean; hasChildren: boolean; toolCount: number }  >();  let exactPath: string | undefined = undefined;  let matchingToolCount = 0;   for (const path of input.toolPaths) {    const segments = toToolPathSegments([path]);    if (segments.length === 0 || !isPrefixOf(prefixSegments, segments)) {      continue;    }     matchingToolCount += 1;     if (segments.length === prefixSegments.length) {      exactPath = exactPath ?? segments.join(".");      continue;    }     const childSegment = segments[prefixSegments.length];    if (!childSegment) continue;     const existing = children.get(childSegment) ?? {      invokable: false,      hasChildren: false,      toolCount: 0,    };    children.set(childSegment, {      invokable: existing.invokable || segments.length === prefixSegments.length + 1,      hasChildren: existing.hasChildren || segments.length > prefixSegments.length + 1,      toolCount: existing.toolCount + 1,    });  }   const sortedChildren: ReadonlyArray<ToolPathChildEntry> = [...children.entries()]    .sort(([a], [b]) => a.localeCompare(b))    .map(([segment, value]) => ({      segment,      invokable: value.invokable,      hasChildren: value.hasChildren,      toolCount: value.toolCount,    }));   return {    prefixSegments,    exactPath,    matchingToolCount,    children: sortedChildren,  };}; export const buildToolPath = (parts: ReadonlyArray<string>): string => {  const segments = toToolPathSegments(parts);  if (segments.length === 0) {    throw new Error("Tool path must include at least one segment");  }  if (segments.some((segment) => !TOOL_PATH_TOKEN.test(segment))) {    throw new Error("Tool path segments must contain only letters, numbers, '.', '_' or '-'");  }  return segments.join(".");}; const buildToolAccessExpression = (toolPath: string): string => {  const segments = toToolPathSegments([toolPath]);  if (segments.length === 0) {    throw new Error("Tool path must include at least one segment");  }  return segments.map((segment) => `[${JSON.stringify(segment)}]`).join("");}; export const parseJsonObjectInput = (  raw: string | undefined,): Effect.Effect<Record<string, unknown>, Error> =>  Effect.gen(function* () {    if (raw === undefined || raw.trim().length === 0) {      return {};    }     const parsed = yield* Effect.try({      try: () => JSON.parse(raw) as unknown,      catch: (cause) =>        cause instanceof Error          ? new Error(`Invalid JSON arguments: ${cause.message}`)          : new Error(`Invalid JSON arguments: ${String(cause)}`),    });     if (!isRecord(parsed)) {      return yield* Effect.fail(new Error("Tool arguments must decode to a JSON object"));    }     return parsed;  }); export const resolveToolInvocation = (input: {  rawPathParts: ReadonlyArray<string>;}): Effect.Effect<{ path: string; args: Record<string, unknown> }, Error, FileSystem.FileSystem> =>  Effect.gen(function* () {    if (!Array.isArray(input.rawPathParts)) {      return yield* Effect.fail(        new Error("Invalid tool invocation: path parts were not parsed as an array"),      );    }     // The trailing argument carries the tool's JSON input — either inline    // (`'{"k":"v"}'`) or, via `@path`, read from a file. The file form is the    // cross-platform equivalent of the Unix `"$(cat file)"`: it dodges shell    // quote-mangling for large or double-quote-heavy payloads (notably    // PowerShell, which corrupts inline JSON passed to a native binary).    const rawLast = input.rawPathParts.at(-1)?.trim();    const isFileArg = rawLast !== undefined && rawLast.startsWith("@");    const filePath = isFileArg ? rawLast.slice(1) : undefined;    if (isFileArg && filePath === "") {      return yield* Effect.fail(        new Error("Tool input '@' requires a file path, e.g. `@./input.json`."),      );    }    const jsonText =      filePath !== undefined        ? (yield* (yield* FileSystem.FileSystem).readFileString(filePath).pipe(            // Surface a path-bearing message instead of a raw ENOENT PlatformError.            Effect.mapError(              (cause) => new Error(`Cannot read tool input file '${filePath}': ${cause}`),            ),          )).trim()        : rawLast;    const hasInlineJsonArg = jsonText !== undefined && jsonText.startsWith("{");    if (isFileArg && !hasInlineJsonArg) {      return yield* Effect.fail(        new Error(`Tool input file '${filePath}' must contain a JSON object starting with '{'.`),      );    }    const pathParts =      isFileArg || hasInlineJsonArg ? input.rawPathParts.slice(0, -1) : input.rawPathParts;    const args = hasInlineJsonArg ? yield* parseJsonObjectInput(jsonText) : {};     if (pathParts.some((part) => part.trim().startsWith("-"))) {      return yield* Effect.fail(        new Error(          "Tool invocation no longer accepts flags. Use: executor call <path...> '{...json...}'",        ),      );    }     const path = yield* Effect.try({      try: () => buildToolPath(pathParts),      catch: (cause) =>        cause instanceof Error ? cause : new Error(`Invalid tool path: ${String(cause)}`),    });     return { path, args };  }); export const extractExecutionResult = (structured: unknown): unknown => {  if (!isRecord(structured) || !("result" in structured)) {    return null;  }  return structured.result;}; export const extractExecutionId = (structured: unknown): string | undefined => {  if (!isRecord(structured) || typeof structured.executionId !== "string") {    return undefined;  }  return structured.executionId;}; export const normalizeCliErrorText = (raw: string): string => {  const lines = raw.split(/\r?\n/);  const compacted: Array<string> = [];   for (const line of lines) {    const trimmed = line.trim();    if (trimmed.length === 0) {      if (compacted.length > 0 && compacted[compacted.length - 1] !== "") {        compacted.push("");      }      continue;    }    if (/^at\s+/.test(trimmed)) continue;    if (/^From previous event/.test(trimmed)) continue;    compacted.push(trimmed);  }   if (compacted.length === 0) {    return stripRepeatedErrorPrefix(raw);  }   compacted[0] = stripRepeatedErrorPrefix(compacted[0] ?? "");  while (compacted.length > 0 && compacted[0]?.length === 0) {    compacted.shift();  }   const limited = compacted.slice(0, 24);  return limited.join("\n").trim();}; export interface PausedInteraction {  readonly kind: "url" | "form";  readonly message: string;  readonly url?: string;  readonly requestedSchema?: Record<string, unknown>;} export const extractPausedInteraction = (structured: unknown): PausedInteraction | undefined => {  if (!isRecord(structured) || !isRecord(structured.interaction)) {    return undefined;  }   const interaction = structured.interaction;  if (    (interaction.kind !== "url" && interaction.kind !== "form") ||    typeof interaction.message !== "string"  ) {    return undefined;  }   const base: PausedInteraction = {    kind: interaction.kind,    message: interaction.message,  };   if (interaction.kind === "url" && typeof interaction.url === "string") {    return { ...base, url: interaction.url };  }   if (interaction.kind === "form" && isRecord(interaction.requestedSchema)) {    return { ...base, requestedSchema: interaction.requestedSchema };  }   return base;}; const schemaExample = (schema: unknown, depth = 0): unknown => {  if (!isRecord(schema) || depth > 4) return {};   if (Array.isArray(schema.enum) && schema.enum.length > 0) {    return schema.enum[0];  }   const candidate = Array.isArray(schema.oneOf)    ? schema.oneOf[0]    : Array.isArray(schema.anyOf)      ? schema.anyOf[0]      : Array.isArray(schema.allOf)        ? schema.allOf[0]        : undefined;   if (candidate !== undefined) {    return schemaExample(candidate, depth + 1);  }   if (schema.type === "string") return "<string>";  if (schema.type === "number" || schema.type === "integer") return 0;  if (schema.type === "boolean") return false;  if (schema.type === "array") return [];   const properties = isRecord(schema.properties) ? schema.properties : undefined;  if (schema.type === "object" || properties) {    const required = Array.isArray(schema.required)      ? schema.required.filter((key): key is string => typeof key === "string")      : undefined;    const keys = Object.keys(properties ?? {});    const selectedKeys = required && required.length > 0 ? required : keys;    const result: Record<string, unknown> = {};    for (const key of selectedKeys) {      const value = properties?.[key];      result[key] = schemaExample(value, depth + 1);    }    return result;  }   return {};}; export const buildResumeContentTemplate = (  requestedSchema: Record<string, unknown> | undefined,): Record<string, unknown> => schemaExample(requestedSchema ?? {}) as Record<string, unknown>; export const shellQuoteArg = (value: string): string => {  if (/^[A-Za-z0-9_/:=@%+.,-]+$/.test(value)) return value;  return `'${value.replaceAll("'", "'\"'\"'")}'`;}; const tokenizeSegment = (input: string): ReadonlyArray<string> =>  input    .replace(/([a-z0-9])([A-Z])/g, "$1 $2")    .replace(/[._-]+/g, " ")    .trim()    .toLowerCase()    .split(/\s+/)    .filter((token) => token.length > 0); const tokenVariants = (input: string): ReadonlyArray<string> => {  const token = input.toLowerCase();  const variants = new Set<string>([token]);   if (token.endsWith("ies") && token.length > 3) {    variants.add(`${token.slice(0, -3)}y`);  } else if (token.endsWith("s") && token.length > 1) {    variants.add(token.slice(0, -1));  } else {    variants.add(`${token}s`);    if (token.endsWith("y") && token.length > 1) {      variants.add(`${token.slice(0, -1)}ies`);    }  }   return [...variants];}; const segmentMatchesToken = (segment: string, queryToken: string): boolean => {  const normalizedSegment = segment.toLowerCase();  const segmentTokens = tokenizeSegment(segment);  const variants = tokenVariants(queryToken);  return variants.some((variant) => {    if (normalizedSegment.includes(variant)) return true;    return segmentTokens.some((token) => token === variant || token.startsWith(variant));  });}; export const filterToolPathChildren = (  children: ReadonlyArray<ToolPathChildEntry>,  query: string | undefined,): ReadonlyArray<ToolPathChildEntry> => {  if (!query || query.trim().length === 0) {    return children;  }  const tokens = query    .trim()    .toLowerCase()    .split(/\s+/)    .filter((token) => token.length > 0);  if (tokens.length === 0) {    return children;  }  return children.filter((child) =>    tokens.every((token) => segmentMatchesToken(child.segment, token)),  );}; export const buildSearchToolsCode = (input: {  query: string;  namespace?: string;  limit: number;}): string => {  const payload: Record<string, unknown> = {    query: input.query,    limit: input.limit,  };  if (input.namespace && input.namespace.trim().length > 0) {    payload.namespace = input.namespace;  }  return `return await tools.search(${JSON.stringify(payload)});`;}; export const buildListIntegrationsCode = (input: { query?: string; limit: number }): string => {  const payload: Record<string, unknown> = {    limit: input.limit,  };  if (input.query && input.query.trim().length > 0) {    payload.query = input.query;  }  return `return await tools.executor.integrations.list(${JSON.stringify(payload)});`;}; export const buildDescribeToolCode = (toolPath: string): string =>  `return await tools.describe.tool({ path: ${JSON.stringify(toolPath)} });`; export const buildInvokeToolCode = (toolPath: string, args: Record<string, unknown>): string => {  const access = buildToolAccessExpression(toolPath);  return [    `const __toolPath = ${JSON.stringify(toolPath)};`,    `const __args = ${JSON.stringify(args, null, 2)};`,    `const __target = tools${access};`,    `if (typeof __target !== "function") {`,    "  throw new Error(`Tool not found: ${__toolPath}`);",    "}",    "return await __target(__args);",  ].join("\n");};