import { Effect } from "effect";import type { Executor, ToolMetadata, Source } from "@executor/sdk"; /** * Builds a tool description dynamically. * * Structure: *   1. Workflow (top — critical, least likely to be truncated) *   2. Available namespaces (bottom) */export const buildExecuteDescription = (  executor: Executor,): Effect.Effect<string> =>  Effect.gen(function* () {    const sources: readonly Source[] = yield* executor.sources.list();    const tools: readonly ToolMetadata[] = yield* executor.tools.list();     const namespaces = new Set<string>();    for (const tool of tools) namespaces.add(tool.sourceId);     return formatDescription([...namespaces], sources);  }); const formatDescription = (  namespaces: readonly string[],  sources: readonly Source[],): string => {  const lines: string[] = [    "Execute TypeScript in a sandboxed runtime with access to configured API tools.",    "",    "## Workflow",    "",    '1. `const results = await tools.discover({ query: "<intent>", limit: 12 });`',    "2. Pick a tool from results: `const path = results[0]?.path;`",    "3. `const details = await tools.describe.tool({ path, includeSchemas: true });`",    "4. Call the tool: `const result = await tools.<path>(input);`",    "",    "## Rules",    "",    "- The `tools` object is a lazy proxy — `Object.keys(tools)` won't work. Use `tools.discover()` to find tools.",    "- Do not use `fetch` — all API calls go through `tools.*`.",    "- If execution pauses for interaction, resume it with the returned `resumePayload`.",  ];   if (namespaces.length > 0) {    lines.push("");    lines.push("## Available namespaces");    lines.push("");    const sorted = [...namespaces].sort();    for (const ns of sorted) {      const source = sources.find((s) => s.id === ns);      const label = source?.name ?? ns;      lines.push(`- \`${ns}\`${label !== ns ? ` — ${label}` : ""}`);    }  }   return lines.join("\n");};