From 068c552b1e057aa580ef2875efdaafcdfa2aacfb Mon Sep 17 00:00:00 2001 From: gengruilin Date: Mon, 21 Sep 2026 16:48:44 +0800 Subject: [PATCH] =?UTF-8?q?fix(session):=20=E5=85=BC=E5=AE=B9=20WebKit=20?= =?UTF-8?q?=E5=8E=9F=E7=94=9F=E6=9E=84=E9=80=A0=E5=99=A8=E6=96=87=E6=9C=AC?= =?UTF-8?q?=E6=A0=BC=E5=BC=8F?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- packages/core/session/tests/json.spec.ts | 31 ++++++++++++++++++- packages/util/values/README.i18n.yaml | 4 +-- packages/util/values/README.md | 2 +- packages/util/values/README.zh.md | 2 +- packages/util/values/src/index.ts | 4 +-- .../workflow/workflow-ptc/src/guest-source.ts | 2 +- 6 files changed, 37 insertions(+), 8 deletions(-) diff --git a/packages/core/session/tests/json.spec.ts b/packages/core/session/tests/json.spec.ts index 31292bc5c4..e213fc9a17 100644 --- a/packages/core/session/tests/json.spec.ts +++ b/packages/core/session/tests/json.spec.ts @@ -1,5 +1,5 @@ import { runInNewContext } from 'node:vm' -import { describe, expect, it } from 'vitest' +import { describe, expect, it, vi } from 'vitest' import { isJsonValue, snapshotJsonValue, type JsonValue } from '@deepseek-ai/dsh-util-values' function objectWithForgedIntrinsicPrototype(revoked = false): Record { @@ -64,6 +64,35 @@ describe('snapshotJsonValue', () => { expect(Object.getPrototypeOf(arraySnapshot)).toBe(Array.prototype) }) + it('accepts intrinsic containers with WebKit native constructor formatting across realms', () => { + const foreign = runInNewContext('({ Object, Array, value: { nested: [1] } })') as { + Object: ObjectConstructor + Array: ArrayConstructor + value: { nested: number[] } + } + const originalDescriptor = Object.getOwnPropertyDescriptor(Function.prototype, 'toString')! + const originalToString = originalDescriptor.value as (this: unknown) => string + const toString = vi.spyOn(Function.prototype, 'toString').mockImplementation(function (this: unknown) { + if (this === Object || this === foreign.Object) return 'function Object() {\n [native code]\n}' + if (this === Array || this === foreign.Array) return 'function Array() {\n [native code]\n}' + return originalToString.call(this) + }) + try { + for (const value of [{ nested: [1] }, [1], foreign.value, foreign.value.nested]) { + expect(isJsonValue(value)).toBe(true) + const snapshot = snapshotJsonValue(value) + expect(snapshot).toEqual(value) + expect(snapshot).not.toBe(value) + } + const forged = objectWithForgedIntrinsicPrototype() + expect(isJsonValue(forged)).toBe(false) + expect(snapshotJsonValue(forged)).toBeUndefined() + } finally { + toString.mockRestore() + } + expect(Object.getOwnPropertyDescriptor(Function.prototype, 'toString')).toEqual(originalDescriptor) + }) + it('reads each object value and array slot once while materializing', () => { class Exotic { readonly accepted = false diff --git a/packages/util/values/README.i18n.yaml b/packages/util/values/README.i18n.yaml index 5a7772659a..333ec65001 100644 --- a/packages/util/values/README.i18n.yaml +++ b/packages/util/values/README.i18n.yaml @@ -2,5 +2,5 @@ # side as of the last confirmed-consistent state. Both languages carry equal authority; # after editing either side, bring the other along and re-record with: # pnpm run verify-translation-pairing --write packages/util/values/README.md -README.md: a61b1c26992d8d6df6712d178563c99acd6045ca -README.zh.md: c15ad967547bb9e449239eac167ce9e59064cc50 +README.md: e969e806ec06c3ccaaf60128b3c6c3f0d032cac8 +README.zh.md: f723a9b48fd34fc02069386fb43553312f5b0e55 diff --git a/packages/util/values/README.md b/packages/util/values/README.md index a61b1c2699..e969e806ec 100644 --- a/packages/util/values/README.md +++ b/packages/util/values/README.md @@ -55,7 +55,7 @@ Use `assertNever(value, context?)` in the default branch of a closed discriminat
Implementation internals — click to expand -The JSON validator uses an explicit work stack and tracks only the active ancestor chain, so deeply nested values do not consume the JavaScript call stack and repeated non-cyclic references remain valid. Snapshot writes use own data properties, including for names such as `__proto__`. Value operations derive their result only from their arguments; `WeakMapWithValues` stores only instance-owned associations. +The JSON validator uses an explicit work stack and tracks only the active ancestor chain, so deeply nested values do not consume the JavaScript call stack and repeated non-cyclic references remain valid. Intrinsic arrays and plain objects are recognized across JavaScript realms using native constructor representations from the running engine. Snapshot writes use own data properties, including for names such as `__proto__`. Value operations derive their result only from their arguments; `WeakMapWithValues` stores only instance-owned associations. ### Source map diff --git a/packages/util/values/README.zh.md b/packages/util/values/README.zh.md index c15ad96754..f723a9b48f 100644 --- a/packages/util/values/README.zh.md +++ b/packages/util/values/README.zh.md @@ -55,7 +55,7 @@ const snapshot = snapshotJsonValue(input) as JsonValue
实现细节——点击展开 -JSON 校验器使用显式工作栈，并只跟踪当前祖先链，因此深层嵌套值不会消耗 JavaScript 调用栈，重复但无循环的引用仍然有效。快照写入使用自有数据属性，包括 `__proto__` 等名称。值操作的结果只取决于传入参数；`WeakMapWithValues` 仅保存实例自有的关联。 +JSON 校验器使用显式工作栈，并只跟踪当前祖先链，因此深层嵌套值不会消耗 JavaScript 调用栈，重复但无循环的引用仍然有效。内建数组与普通对象通过当前引擎的原生构造器文本表示进行跨 JavaScript realm 识别。快照写入使用自有数据属性，包括 `__proto__` 等名称。值操作的结果只取决于传入参数；`WeakMapWithValues` 仅保存实例自有的关联。 ### 源码地图 diff --git a/packages/util/values/src/index.ts b/packages/util/values/src/index.ts index 908f4f8f0f..2e4b81cc86 100644 --- a/packages/util/values/src/index.ts +++ b/packages/util/values/src/index.ts @@ -14,7 +14,7 @@ export function assertNever(value: never, context?: string): never { throw new Error(`unreachable variant${context ? ` in ${context}` : ''}: ${rendered}`) } -/** Whether a realm-owned intrinsic prototype is backed by its native constructor. */ +/** Whether a realm-owned intrinsic prototype has a native constructor matching this engine's representation. */ function hasIntrinsicConstructor(prototype: object, name: 'Array' | 'Object'): boolean { const descriptor = Object.getOwnPropertyDescriptor(prototype, 'constructor') const constructor: unknown = descriptor?.value @@ -22,7 +22,7 @@ function hasIntrinsicConstructor(prototype: object, name: 'Array' | 'Object'): b try { return constructor.name === name && constructor.prototype === prototype - && Function.prototype.toString.call(constructor) === `function ${name}() { [native code] }` + && Function.prototype.toString.call(constructor) === Function.prototype.toString.call(name === 'Array' ? Array : Object) } catch { return false } diff --git a/packages/workflow/workflow-ptc/src/guest-source.ts b/packages/workflow/workflow-ptc/src/guest-source.ts index a159050889..ed380d0559 100644 --- a/packages/workflow/workflow-ptc/src/guest-source.ts +++ b/packages/workflow/workflow-ptc/src/guest-source.ts @@ -1,4 +1,4 @@ /** Generated by scripts/gen-workflow-guest.ts. Do not edit directly. */ /** Self-contained ESM guest transported into the mounted PTC runtime. */ -export const WORKFLOW_GUEST_SOURCE = "import * as vm from \"node:vm\";\n//#region packages/workflow/workflow-ptc/src/realm.ts\n/**\n* Materializes script VM values as plain JSON and renders thrown values.\n* Getters and proxy traps may execute inside the confined Node process;\n* process isolation and cancellation belong to PTC, not the VM.\n* @module @deepseek-ai/dsh-workflow-ptc/realm\n*/\n/** Thrown by {@link materializeFromRealm}; the caller wraps it into the right `WorkflowError` code. */\nvar MaterializeError = class extends Error {\n\tpath;\n\treason;\n\tconstructor(path, reason) {\n\t\tsuper(`${path}: ${reason}`);\n\t\tthis.path = path;\n\t\tthis.reason = reason;\n\t\tthis.name = \"MaterializeError\";\n\t}\n};\n/**\n* Render a thrown value to failure text without ever throwing: prefer the\n* `stack` (host or realm — a realm error's `stack` is a plain string read),\n* fall back to `message`, then `String()`. Reading those properties MAY run\n* script code; if that code itself throws, a fixed label is returned instead.\n* @param error - any value thrown in the host or guest realm.\n* @returns human-readable text for the failure report; prefers the stack.\n*/\nfunction renderThrown(error) {\n\ttry {\n\t\tconst stack = error?.stack;\n\t\tif (typeof stack === \"string\" && stack.length > 0) return stack;\n\t\tconst message = error?.message;\n\t\tif (typeof message === \"string\" && message.length > 0) return message;\n\t\treturn String(error);\n\t} catch {\n\t\treturn \"[unrenderable thrown value]\";\n\t}\n}\n/**\n* Whether an object's prototype chain represents a plain data object: `null`, or a prototype\n* whose own prototype is `null` (the realm's `Object.prototype` — which we\n* cannot compare by identity across realms). A `Date`/`Map`/class instance\n* has a longer chain and is rejected.\n*/\nfunction hasPlainPrototype(value) {\n\tconst proto = Object.getPrototypeOf(value);\n\tif (proto === null) return true;\n\treturn Object.getPrototypeOf(proto) === null;\n}\n/**\n* Copy `value` (typically from the vm realm) into plain host JSON data. Root `undefined` is\n* returned unchanged; nested `undefined` and values JSON cannot represent losslessly fail\n* with the offending path. Property accessors run normally, and a throwing read is wrapped\n* with its rendered failure.\n*\n* @param value - the realm value to materialize.\n* @param root - the path label for the root value (error messages).\n* @returns the host-realm copy (plain objects/arrays/scalars only).\n* @throws {@link MaterializeError} for unsupported values, cycles, sparse arrays, exotic\n* prototypes, or property reads that throw.\n*/\nfunction materializeFromRealm(value, root = \"value\") {\n\tif (value === void 0) return void 0;\n\ttry {\n\t\treturn materialize(value, root, /* @__PURE__ */ new Set());\n\t} catch (error) {\n\t\tif (error instanceof MaterializeError) throw error;\n\t\tthrow new MaterializeError(root, `reading the value threw: ${renderThrown(error)}`);\n\t}\n}\nfunction materialize(value, path, seen) {\n\tswitch (typeof value) {\n\t\tcase \"boolean\":\n\t\tcase \"string\": return value;\n\t\tcase \"number\":\n\t\t\tif (!Number.isFinite(value)) throw new MaterializeError(path, \"non-finite numbers are not JSON data\");\n\t\t\treturn value;\n\t\tcase \"bigint\": throw new MaterializeError(path, \"bigints are not JSON data\");\n\t\tcase \"function\": throw new MaterializeError(path, \"functions are not plain JSON data\");\n\t\tcase \"symbol\": throw new MaterializeError(path, \"symbols are not plain JSON data\");\n\t\tcase \"undefined\": throw new MaterializeError(path, \"undefined is not JSON data\");\n\t\tcase \"object\": break;\n\t}\n\tif (value === null) return null;\n\tconst objectValue = value;\n\tif (seen.has(objectValue)) throw new MaterializeError(path, \"circular references are not JSON data\");\n\tseen.add(objectValue);\n\ttry {\n\t\tif (Array.isArray(objectValue)) return materializeArray(objectValue, path, seen);\n\t\treturn materializeObject(objectValue, path, seen);\n\t} finally {\n\t\tseen.delete(objectValue);\n\t}\n}\nfunction materializeArray(value, path, seen) {\n\tconst out = [];\n\tfor (let index = 0; index < value.length; index++) {\n\t\tif (!(index in value)) throw new MaterializeError(`${path}[${index}]`, \"sparse arrays are not JSON data\");\n\t\tout.push(materialize(value[index], `${path}[${index}]`, seen));\n\t}\n\tfor (const key of Object.keys(value)) {\n\t\tconst index = Number(key);\n\t\tif (!Number.isInteger(index) || index < 0 || index >= value.length) throw new MaterializeError(`${path}.${key}`, \"arrays with non-index properties are not JSON data\");\n\t}\n\tif (Object.getOwnPropertySymbols(value).length > 0) throw new MaterializeError(path, \"symbol-keyed properties are not plain JSON data\");\n\treturn out;\n}\nfunction materializeObject(value, path, seen) {\n\tif (!hasPlainPrototype(value)) throw new MaterializeError(path, \"only plain objects and arrays are JSON data (exotic prototype)\");\n\tif (Object.getOwnPropertySymbols(value).length > 0) throw new MaterializeError(path, \"symbol-keyed properties are not plain JSON data\");\n\tconst out = {};\n\tfor (const key of Object.keys(value)) Object.defineProperty(out, key, {\n\t\tvalue: materialize(value[key], `${path}.${key}`, seen),\n\t\tenumerable: true,\n\t\twritable: true,\n\t\tconfigurable: true\n\t});\n\treturn out;\n}\n//#endregion\n//#region packages/util/brand/src/index.ts\n/**\n* Apply a compile-time string brand without changing the value.\n* @param value - string admitted by the domain that owns the target brand.\n* @returns the same string with the requested compile-time brand.\n*/\nfunction brandString(value) {\n\treturn value;\n}\n//#endregion\n//#region packages/llm/llm/src/error.ts\n/**\n* Harness error base with a stable machine-routable code and chained cause.\n* Package errors extend it so tool results and replay can retain failure class.\n* @module @deepseek-ai/dsh-llm/error\n*/\n/**\n* Base class for all harness errors. Carries a `code` (stable, programmatic —\n* e.g. `NO_ADAPTER`, `INVALID_ARGS`, `INVARIANT`) distinct from the\n* human-readable `message`, and supports `cause` chaining via the standard\n* `ErrorOptions`. `name` defaults to the subclass constructor name.\n*/\nvar HarnessError = class extends Error {\n\t/** Stable machine-routable failure class (e.g. `RATE_LIMIT`); route on this, never by parsing `message`. */\n\tcode;\n\tconstructor(message, code, options) {\n\t\tsuper(message, options);\n\t\tthis.code = code;\n\t\tthis.name = new.target.name;\n\t}\n};\nnew RegExp(String.raw`(?:^|[^a-z0-9])context[\\s_-](?:length|window)[\\s_-]` + String.raw`(?:exceed(?:ed|s)?|overflow(?:ed)?|limit[\\s_-]exceeded)(?:$|[^a-z0-9])`, \"i\");\nnew RegExp(String.raw`\\b(?:request|prompt|input|messages?)\\s+(?:is\\s+|are\\s+)?` + String.raw`too\\s+(?:large|long)\\s+for\\s+(?:(?:this|the)\\s+)?` + String.raw`(?:model(?:'s)?\\s+)?context(?:\\s+window)?\\b`, \"i\");\nnew RegExp(String.raw`\\b(?:input|prompt|request|messages?)\\b.{0,40}` + String.raw`\\b(?:exceed(?:s|ed)?|overflows?|is\\s+larger\\s+than)\\b.{0,40}` + String.raw`\\b(?:the\\s+)?(?:model(?:'s)?\\s+)?context(?:\\s+(?:length|window))?\\b`, \"i\");\n//#endregion\n//#region packages/util/values/src/index.ts\n/**\n* Mark an unreachable closed-union branch.\n* @param value - impossible value; an unhandled typed variant fails at the call site.\n* @param context - optional switch-site label included in the failure message.\n* @returns never; a runtime value that escaped its type always throws.\n*/\nfunction assertNever(value, context) {\n\tconst rendered = JSON.stringify(value) ?? String(value);\n\tthrow new Error(`unreachable variant${context ? ` in ${context}` : \"\"}: ${rendered}`);\n}\n/** Whether a realm-owned intrinsic prototype is backed by its native constructor. */\nfunction hasIntrinsicConstructor$1(prototype, name) {\n\tconst constructor = Object.getOwnPropertyDescriptor(prototype, \"constructor\")?.value;\n\tif (typeof constructor !== \"function\") return false;\n\ttry {\n\t\treturn constructor.name === name && constructor.prototype === prototype && Function.prototype.toString.call(constructor) === `function ${name}() { [native code] }`;\n\t} catch {\n\t\treturn false;\n\t}\n}\n/** Whether a candidate is one realm's intrinsic `Object.prototype`. */\nfunction isIntrinsicObjectPrototype$1(value) {\n\treturn Object.getPrototypeOf(value) === null && hasIntrinsicConstructor$1(value, \"Object\");\n}\n/** Whether an array uses one realm's intrinsic `Array.prototype`, not a subclass or forged prototype. */\nfunction hasPlainArrayPrototype$1(value) {\n\tconst prototype = Object.getPrototypeOf(value);\n\tif (!Array.isArray(prototype) || !hasIntrinsicConstructor$1(prototype, \"Array\")) return false;\n\tconst objectPrototype = Object.getPrototypeOf(prototype);\n\treturn typeof objectPrototype === \"object\" && objectPrototype !== null && isIntrinsicObjectPrototype$1(objectPrototype);\n}\n/** Whether an object is a plain or null-prototype record from any JavaScript realm. */\nfunction hasPlainObjectPrototype(value) {\n\tconst prototype = Object.getPrototypeOf(value);\n\treturn prototype === null || typeof prototype === \"object\" && isIntrinsicObjectPrototype$1(prototype);\n}\n/** Return every JSON-visible object key, or reject own data JSON would discard. */\nfunction enumerableStringKeys(value) {\n\tconst keys = Reflect.ownKeys(value);\n\tif (keys.some((key) => typeof key !== \"string\" || !Object.prototype.propertyIsEnumerable.call(value, key))) return void 0;\n\treturn keys;\n}\n/** Validate lossless JSON iteratively, optionally materializing a detached snapshot. */\nfunction walkJsonValue(value, detach) {\n\tconst ancestors = /* @__PURE__ */ new Set();\n\tlet root;\n\tconst assign = (destination, item) => {\n\t\tif (destination === void 0) return;\n\t\tif (destination.kind === \"root\") root = item;\n\t\telse if (destination.kind === \"array\") destination.target[destination.index] = item;\n\t\telse Object.defineProperty(destination.target, destination.key, {\n\t\t\tvalue: item,\n\t\t\tenumerable: true,\n\t\t\tconfigurable: true,\n\t\t\twritable: true\n\t\t});\n\t};\n\tconst tasks = [{\n\t\tkind: \"visit\",\n\t\tvalue,\n\t\t...detach ? { destination: { kind: \"root\" } } : {}\n\t}];\n\tfor (let task = tasks.pop(); task !== void 0; task = tasks.pop()) {\n\t\tif (task.kind === \"leave\") {\n\t\t\tancestors.delete(task.source);\n\t\t\tcontinue;\n\t\t}\n\t\tif (task.kind === \"array-item\") {\n\t\t\tif (!Object.prototype.hasOwnProperty.call(task.source, task.index)) return void 0;\n\t\t\ttasks.push({\n\t\t\t\tkind: \"visit\",\n\t\t\t\tvalue: task.source[task.index],\n\t\t\t\t...task.target === void 0 ? {} : { destination: {\n\t\t\t\t\tkind: \"array\",\n\t\t\t\t\ttarget: task.target,\n\t\t\t\t\tindex: task.index\n\t\t\t\t} }\n\t\t\t});\n\t\t\tcontinue;\n\t\t}\n\t\tif (task.kind === \"object-property\") {\n\t\t\ttasks.push({\n\t\t\t\tkind: \"visit\",\n\t\t\t\tvalue: task.source[task.key],\n\t\t\t\t...task.target === void 0 ? {} : { destination: {\n\t\t\t\t\tkind: \"object\",\n\t\t\t\t\ttarget: task.target,\n\t\t\t\t\tkey: task.key\n\t\t\t\t} }\n\t\t\t});\n\t\t\tcontinue;\n\t\t}\n\t\tconst current = task.value;\n\t\tif (current === null) {\n\t\t\tassign(task.destination, null);\n\t\t\tcontinue;\n\t\t}\n\t\tif (typeof current === \"boolean\" || typeof current === \"string\") {\n\t\t\tassign(task.destination, current);\n\t\t\tcontinue;\n\t\t}\n\t\tif (typeof current === \"number\") {\n\t\t\tif (!Number.isFinite(current) || Object.is(current, -0)) return void 0;\n\t\t\tassign(task.destination, current);\n\t\t\tcontinue;\n\t\t}\n\t\tif (typeof current !== \"object\") return void 0;\n\t\tif (ancestors.has(current)) return void 0;\n\t\tif (Array.isArray(current)) {\n\t\t\tif (!hasPlainArrayPrototype$1(current)) return void 0;\n\t\t\tconst length = current.length;\n\t\t\tif (Reflect.ownKeys(current).length !== length + 1) return void 0;\n\t\t\tconst target = detach ? [] : void 0;\n\t\t\tif (target !== void 0) assign(task.destination, target);\n\t\t\tancestors.add(current);\n\t\t\ttasks.push({\n\t\t\t\tkind: \"leave\",\n\t\t\t\tsource: current\n\t\t\t});\n\t\t\tfor (let index = length - 1; index >= 0; index--) tasks.push({\n\t\t\t\tkind: \"array-item\",\n\t\t\t\tsource: current,\n\t\t\t\tindex,\n\t\t\t\t...target === void 0 ? {} : { target }\n\t\t\t});\n\t\t\tcontinue;\n\t\t}\n\t\tif (!hasPlainObjectPrototype(current)) return void 0;\n\t\tconst keys = enumerableStringKeys(current);\n\t\tif (keys === void 0) return void 0;\n\t\tconst target = detach ? {} : void 0;\n\t\tif (target !== void 0) assign(task.destination, target);\n\t\tancestors.add(current);\n\t\ttasks.push({\n\t\t\tkind: \"leave\",\n\t\t\tsource: current\n\t\t});\n\t\tfor (let index = keys.length - 1; index >= 0; index--) {\n\t\t\tconst key = keys[index];\n\t\t\t/* v8 ignore next -- the loop is bounded by the captured key count. */\n\t\t\tif (key === void 0) return void 0;\n\t\t\ttasks.push({\n\t\t\t\tkind: \"object-property\",\n\t\t\t\tsource: current,\n\t\t\t\tkey,\n\t\t\t\t...target === void 0 ? {} : { target }\n\t\t\t});\n\t\t}\n\t}\n\treturn detach ? root : true;\n}\n/**\n* Test the same lossless JSON rules as {@link snapshotJsonValue} without detaching the value.\n* @param value - candidate value to test.\n* @returns whether the value survives a JSON round trip without loss.\n*/\nfunction isJsonValue(value) {\n\treturn walkJsonValue(value, false) === true;\n}\n//#endregion\n//#region packages/core/tools/src/json-schema.ts\n/**\n* Enforced JSON Schema subset shared by tool outputs, generated PTC mode\n* types, subagents, and workflows. The subset accepts any JSON root, an\n* annotation-only schema for unconstrained JSON, one scalar `type`, object\n* `properties`/`required`/boolean `additionalProperties`, array `items`,\n* type-correct scalar `enum`/`const`, and exact-one `oneOf`.\n*\n* Unsupported or misplaced keywords reject rather than being accepted without\n* enforcement. Consumers that require an object root apply\n* {@link assertObjectJsonSchema} before accepting input.\n* @module dsh-tools/json-schema\n*/\n/**\n* Thrown when a raw schema falls outside the enforced subset. `violations`\n* lists every offending path instead of stopping at the first author error.\n*/\nvar JsonSchemaError = class extends HarnessError {\n\t/** Individual schema violations in walk order. */\n\tviolations;\n\tconstructor(violations) {\n\t\tsuper(`unsupported JSON schema: ${violations.join(\"; \")}`, \"UNSUPPORTED_SCHEMA\");\n\t\tthis.name = \"JsonSchemaError\";\n\t\tthis.violations = violations;\n\t}\n};\nconst CONSTRAINT_KEYWORDS = new Set([\n\t\"type\",\n\t\"oneOf\",\n\t\"properties\",\n\t\"required\",\n\t\"additionalProperties\",\n\t\"items\",\n\t\"enum\",\n\t\"const\"\n]);\nconst ANNOTATION_KEYWORDS = new Set([\n\t\"description\",\n\t\"title\",\n\t\"default\",\n\t\"examples\"\n]);\nconst SCHEMA_TYPES = [\n\t\"object\",\n\t\"array\",\n\t\"string\",\n\t\"number\",\n\t\"integer\",\n\t\"boolean\",\n\t\"null\"\n];\n/** Whether a realm-owned intrinsic prototype is backed by its native constructor. */\nfunction hasIntrinsicConstructor(prototype, name) {\n\tconst constructor = Object.getOwnPropertyDescriptor(prototype, \"constructor\")?.value;\n\tif (typeof constructor !== \"function\") return false;\n\ttry {\n\t\treturn constructor.name === name && constructor.prototype === prototype && Function.prototype.toString.call(constructor) === `function ${name}() { [native code] }`;\n\t} catch {\n\t\treturn false;\n\t}\n}\n/** Whether a candidate is one realm's intrinsic `Object.prototype`. */\nfunction isIntrinsicObjectPrototype(value) {\n\treturn Object.getPrototypeOf(value) === null && hasIntrinsicConstructor(value, \"Object\");\n}\n/**\n* Test for a realm-agnostic plain JSON record without accepting arrays or\n* exotic objects.\n* @param value - candidate record from any JavaScript realm.\n* @returns Whether the value has a plain-object prototype chain.\n*/\nfunction isPlainJsonRecord(value) {\n\tif (typeof value !== \"object\" || value === null || Array.isArray(value)) return false;\n\ttry {\n\t\tconst prototype = Object.getPrototypeOf(value);\n\t\treturn prototype === null || typeof prototype === \"object\" && isIntrinsicObjectPrototype(prototype);\n\t} catch {\n\t\treturn false;\n\t}\n}\n/** Whether an array uses one realm's intrinsic `Array.prototype`. */\nfunction hasPlainArrayPrototype(value) {\n\tconst prototype = Object.getPrototypeOf(value);\n\tif (!Array.isArray(prototype) || !hasIntrinsicConstructor(prototype, \"Array\")) return false;\n\tconst objectPrototype = Object.getPrototypeOf(prototype);\n\treturn typeof objectPrototype === \"object\" && objectPrototype !== null && isIntrinsicObjectPrototype(objectPrototype);\n}\n/** Return whether a record contains only own enumerable string keys. */\nfunction hasOnlyEnumerableStringKeys(value) {\n\ttry {\n\t\treturn Reflect.ownKeys(value).every((key) => typeof key === \"string\" && Object.prototype.propertyIsEnumerable.call(value, key));\n\t} catch {\n\t\treturn false;\n\t}\n}\n/**\n* Test for an ordinary schema record whose keys survive JSON projection.\n* @param value - candidate record from any JavaScript realm.\n* @returns Whether the record has an intrinsic prototype and only own enumerable string keys.\n*/\nfunction isJsonSchemaRecord(value) {\n\treturn isPlainJsonRecord(value) && hasOnlyEnumerableStringKeys(value);\n}\n/**\n* Test for a dense ordinary array with no JSON-invisible decorations.\n* @param value - candidate array from any JavaScript realm.\n* @returns Whether the array is intrinsic, dense, and undecorated.\n*/\nfunction isPlainJsonArray(value) {\n\tif (!Array.isArray(value)) return false;\n\ttry {\n\t\tif (!hasPlainArrayPrototype(value) || Reflect.ownKeys(value).length !== value.length + 1) return false;\n\t\tfor (let index = 0; index < value.length; index++) if (!Object.hasOwn(value, index)) return false;\n\t\treturn true;\n\t} catch {\n\t\treturn false;\n\t}\n}\n/** Lossless finite JSON number, excluding negative zero. */\nfunction isJsonNumber(value) {\n\treturn typeof value === \"number\" && Number.isFinite(value) && !Object.is(value, -0);\n}\n/** Whether a scalar is valid for one declared schema type. */\nfunction scalarMatches(type, value) {\n\tswitch (type) {\n\t\tcase \"string\": return typeof value === \"string\";\n\t\tcase \"number\": return isJsonNumber(value);\n\t\tcase \"integer\": return isJsonNumber(value) && Number.isInteger(value);\n\t\tcase \"boolean\": return typeof value === \"boolean\";\n\t\tcase \"null\": return value === null;\n\t\t/* v8 ignore next -- JsonSchemaScalarType is closed; this retains compile-time exhaustiveness. */\n\t\tdefault: return assertNever(type, \"JsonSchemaType\");\n\t}\n}\n/** Keywords that are invalid beside `oneOf`. */\nconst ONE_OF_SIBLING_KEYWORDS = [\n\t\"properties\",\n\t\"required\",\n\t\"additionalProperties\",\n\t\"items\",\n\t\"enum\",\n\t\"const\"\n];\n/** Validate object-only fields after its property schemas have been visited. */\nfunction checkObjectSchemaTail(node, path, properties, violations) {\n\tconst hasRequired = Object.hasOwn(node, \"required\");\n\tconst required = hasRequired ? node.required : void 0;\n\tif (hasRequired) if (!isPlainJsonArray(required) || required.some((entry) => typeof entry !== \"string\")) violations.push(`${path}.required must be an array of strings`);\n\telse {\n\t\tconst declared = isJsonSchemaRecord(properties) ? properties : {};\n\t\tfor (const key of required) if (!Object.hasOwn(declared, key)) violations.push(`${path}.required names \"${key}\" which is not in properties`);\n\t}\n\tif (Object.hasOwn(node, \"additionalProperties\") && typeof node.additionalProperties !== \"boolean\") violations.push(`${path}.additionalProperties must be a boolean`);\n}\n/** Collect every violation for one raw schema tree without using the JavaScript call stack. */\nfunction checkSchemaNode(root, rootPath, violations, seen) {\n\tconst tasks = [{\n\t\tkind: \"enter\",\n\t\tnode: root,\n\t\tpath: rootPath\n\t}];\n\tfor (let task = tasks.pop(); task !== void 0; task = tasks.pop()) {\n\t\tif (task.kind === \"leave\") {\n\t\t\tseen.delete(task.node);\n\t\t\tcontinue;\n\t\t}\n\t\tif (task.kind === \"one-of-tail\") {\n\t\t\tfor (const key of ONE_OF_SIBLING_KEYWORDS) if (Object.hasOwn(task.node, key)) violations.push(`${task.path}.${key} is not supported beside oneOf`);\n\t\t\tcontinue;\n\t\t}\n\t\tif (task.kind === \"object-tail\") {\n\t\t\tcheckObjectSchemaTail(task.node, task.path, task.properties, violations);\n\t\t\tcontinue;\n\t\t}\n\t\tconst { node, path } = task;\n\t\tif (!isJsonSchemaRecord(node)) {\n\t\t\tviolations.push(`${path} must be a schema object`);\n\t\t\tcontinue;\n\t\t}\n\t\tif (seen.has(node)) {\n\t\t\tviolations.push(`${path} is circular`);\n\t\t\tcontinue;\n\t\t}\n\t\tseen.add(node);\n\t\ttasks.push({\n\t\t\tkind: \"leave\",\n\t\t\tnode\n\t\t});\n\t\tfor (const key of Object.keys(node)) {\n\t\t\tif (CONSTRAINT_KEYWORDS.has(key)) continue;\n\t\t\tif (ANNOTATION_KEYWORDS.has(key)) {\n\t\t\t\ttry {\n\t\t\t\t\tif (!isJsonValue(node[key])) violations.push(`${path}.${key} annotation must be lossless JSON data`);\n\t\t\t\t} catch {\n\t\t\t\t\tviolations.push(`${path}.${key} annotation must be lossless JSON data`);\n\t\t\t\t}\n\t\t\t\tcontinue;\n\t\t\t}\n\t\t\tviolations.push(`${path}.${key} is not a supported keyword (subset: type/oneOf/properties/required/additionalProperties/items/enum/const + annotations)`);\n\t\t}\n\t\tif (Object.hasOwn(node, \"description\") && typeof node.description !== \"string\") violations.push(`${path}.description must be a string`);\n\t\tif (Object.hasOwn(node, \"title\") && typeof node.title !== \"string\") violations.push(`${path}.title must be a string`);\n\t\tconst hasType = Object.hasOwn(node, \"type\");\n\t\tconst hasOneOf = Object.hasOwn(node, \"oneOf\");\n\t\tif (hasType && hasOneOf) {\n\t\t\tviolations.push(`${path} cannot declare both type and oneOf`);\n\t\t\tcontinue;\n\t\t}\n\t\tif (!hasType && !hasOneOf) {\n\t\t\tfor (const key of ONE_OF_SIBLING_KEYWORDS) if (Object.hasOwn(node, key)) violations.push(`${path}.${key} requires type or oneOf`);\n\t\t\tcontinue;\n\t\t}\n\t\tif (hasOneOf) {\n\t\t\tconst oneOf = node.oneOf;\n\t\t\ttasks.push({\n\t\t\t\tkind: \"one-of-tail\",\n\t\t\t\tnode,\n\t\t\t\tpath\n\t\t\t});\n\t\t\tif (!isPlainJsonArray(oneOf) || oneOf.length < 2) violations.push(`${path}.oneOf must be an array of at least two schemas`);\n\t\t\telse for (let index = oneOf.length - 1; index >= 0; index--) tasks.push({\n\t\t\t\tkind: \"enter\",\n\t\t\t\tnode: oneOf[index],\n\t\t\t\tpath: `${path}.oneOf[${index}]`\n\t\t\t});\n\t\t\tcontinue;\n\t\t}\n\t\tconst type = node.type;\n\t\tif (typeof type !== \"string\" || !SCHEMA_TYPES.includes(type)) {\n\t\t\tviolations.push(Array.isArray(type) ? `${path}.type must be a single type string (type arrays are not supported)` : `${path}.type must be one of ${SCHEMA_TYPES.join(\"/\")}`);\n\t\t\tcontinue;\n\t\t}\n\t\tconst schemaType = type;\n\t\tfor (const [key, types] of Object.entries({\n\t\t\tproperties: [\"object\"],\n\t\t\trequired: [\"object\"],\n\t\t\tadditionalProperties: [\"object\"],\n\t\t\titems: [\"array\"],\n\t\t\tenum: [\n\t\t\t\t\"string\",\n\t\t\t\t\"number\",\n\t\t\t\t\"integer\",\n\t\t\t\t\"boolean\",\n\t\t\t\t\"null\"\n\t\t\t],\n\t\t\tconst: [\n\t\t\t\t\"string\",\n\t\t\t\t\"number\",\n\t\t\t\t\"integer\",\n\t\t\t\t\"boolean\",\n\t\t\t\t\"null\"\n\t\t\t]\n\t\t})) if (Object.hasOwn(node, key) && !types.includes(schemaType)) violations.push(`${path}.${key} is not supported on type \"${schemaType}\"`);\n\t\tswitch (schemaType) {\n\t\t\tcase \"object\": {\n\t\t\t\tconst properties = Object.hasOwn(node, \"properties\") ? node.properties : void 0;\n\t\t\t\ttasks.push({\n\t\t\t\t\tkind: \"object-tail\",\n\t\t\t\t\tnode,\n\t\t\t\t\tpath,\n\t\t\t\t\tproperties\n\t\t\t\t});\n\t\t\t\tif (Object.hasOwn(node, \"properties\")) if (!isJsonSchemaRecord(properties)) violations.push(`${path}.properties must be an object of schemas`);\n\t\t\t\telse {\n\t\t\t\t\tconst entries = Object.entries(properties);\n\t\t\t\t\tfor (let index = entries.length - 1; index >= 0; index--) {\n\t\t\t\t\t\tconst entry = entries[index];\n\t\t\t\t\t\t/* v8 ignore next -- the loop is bounded by the captured entry count. */\n\t\t\t\t\t\tif (entry === void 0) continue;\n\t\t\t\t\t\ttasks.push({\n\t\t\t\t\t\t\tkind: \"enter\",\n\t\t\t\t\t\t\tnode: entry[1],\n\t\t\t\t\t\t\tpath: `${path}.properties.${entry[0]}`\n\t\t\t\t\t\t});\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tcase \"array\":\n\t\t\t\tif (Object.hasOwn(node, \"items\")) tasks.push({\n\t\t\t\t\tkind: \"enter\",\n\t\t\t\t\tnode: node.items,\n\t\t\t\t\tpath: `${path}.items`\n\t\t\t\t});\n\t\t\t\tbreak;\n\t\t\tcase \"string\":\n\t\t\tcase \"number\":\n\t\t\tcase \"integer\":\n\t\t\tcase \"boolean\":\n\t\t\tcase \"null\": {\n\t\t\t\tconst hasEnum = Object.hasOwn(node, \"enum\");\n\t\t\t\tconst allowed = hasEnum ? node.enum : void 0;\n\t\t\t\tconst enumValid = isPlainJsonArray(allowed) && allowed.length > 0 && allowed.every((entry) => scalarMatches(schemaType, entry));\n\t\t\t\tif (hasEnum && !enumValid) violations.push(`${path}.enum must be a non-empty array of ${schemaType} values`);\n\t\t\t\tconst hasConst = Object.hasOwn(node, \"const\");\n\t\t\t\tconst declaredConst = hasConst ? node.const : void 0;\n\t\t\t\tconst constValid = scalarMatches(schemaType, declaredConst);\n\t\t\t\tif (hasConst) {\n\t\t\t\t\tif (!constValid) violations.push(`${path}.const must be a ${schemaType} value`);\n\t\t\t\t\telse if (enumValid && !allowed.includes(declaredConst)) violations.push(`${path}.const must be one of ${path}.enum when both are declared`);\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\t/* v8 ignore next -- schemaType was narrowed from the closed SCHEMA_TYPES table above. */\n\t\t\tdefault: assertNever(schemaType, \"JsonSchemaType\");\n\t\t}\n\t}\n}\n/**\n* Assert the enforced subset plus the object-root constraint retained by\n* subagent and workflow structured outputs.\n* @param schema - untrusted caller-supplied schema.\n* @returns Assertion that the schema belongs to the supported subset and has an object root.\n*/\nfunction assertObjectJsonSchema(schema) {\n\tconst violations = [];\n\tcheckSchemaNode(schema, \"schema\", violations, /* @__PURE__ */ new Set());\n\tif (violations.length === 0 && (!isJsonSchemaRecord(schema) || !Object.hasOwn(schema, \"type\") || schema.type !== \"object\")) violations.push(\"schema.type must be \\\"object\\\" (structured output is object-rooted)\");\n\tif (violations.length > 0) throw new JsonSchemaError(violations);\n}\n//#endregion\n//#region packages/workflow/workflow/src/index.ts\n/**\n* Typed error for workflow-seam failures. Extends {@link HarnessError}, so the\n* `code` is machine-routable taxonomy. `fatal` drives the combinator\n* discipline: `parallel()`/`pipeline()` re-throw a fatal error (a typo'd\n* option or a tripped cap must kill the script loudly), and reserve the\n* per-item `null` for child-run failures and ordinary in-stage script errors.\n* Every {@link WorkflowErrorCode} is fatal; the flag exists so the\n* distinction is explicit at every catch site rather than implied.\n*/\nvar WorkflowError = class extends HarnessError {\n\t/** Whether combinators must propagate this error instead of nulling the item. */\n\tfatal;\n\tconstructor(message, code, options) {\n\t\tsuper(message, code, options);\n\t\tthis.name = \"WorkflowError\";\n\t\tthis.fatal = options?.fatal ?? true;\n\t}\n};\n/**\n* Whether combinators must re-throw `error` instead of mapping the item to `null`.\n* @param error - any thrown value; fatality is host `instanceof` (unforgeable from a script realm).\n* @returns true iff `error` is a {@link WorkflowError} whose `fatal` flag is set.\n*/\nfunction isFatalWorkflowError(error) {\n\treturn error instanceof WorkflowError && error.fatal;\n}\n//#endregion\n//#region packages/workflow/workflow-ptc/src/runtime.ts\n/**\n* Workflow VM hooks, child callbacks, ordinary concurrency limits and result serialization.\n* PTC owns process confinement and cancellation. Fatal hook and provider failures propagate\n* through combinators; ordinary child failures and stage errors become per-item nulls.\n* @module @deepseek-ai/dsh-workflow-ptc/runtime\n*/\n/** The `agent()` options the script may pass; everything else rejects loud. */\nconst SUPPORTED_AGENT_OPTIONS = new Set([\n\t\"label\",\n\t\"phase\",\n\t\"schema\",\n\t\"provider\",\n\t\"model\"\n]);\n/** Deferred Claude Code options we name explicitly in the rejection message. */\nconst DEFERRED_AGENT_OPTIONS = new Set([\n\t\"effort\",\n\t\"isolation\",\n\t\"agentType\"\n]);\n/** Flatten a child's final output blocks to text (the non-schema `agent()` result). */\nfunction outputText(blocks) {\n\treturn blocks.filter((block) => block.type === \"text\").map((block) => block.text).join(\"\");\n}\n/** A short display label derived from the prompt when the script passes none. */\nfunction defaultLabel(prompt) {\n\tconst newline = prompt.indexOf(\"\\n\");\n\tconst line = newline === -1 ? prompt : prompt.slice(0, newline);\n\treturn line.length <= 48 ? line : `${line.slice(0, 47)}…`;\n}\n/**\n* One script execution inside the confined Node process. The host owns\n* cancellation and cleanup of any dropped child work.\n*/\nvar WorkflowExecution = class {\n\tlimits;\n\tobserver;\n\tchildren;\n\t/** 1-based count of `agent()` calls started (the `agentsStarted` result field). */\n\tstarted = 0;\n\tactiveSlots = 0;\n\tslotWaiters = [];\n\tcurrentPhase;\n\tcontext;\n\tcompiled;\n\tconstructor(meta, body, args, limits, observer, children) {\n\t\tthis.limits = limits;\n\t\tthis.observer = observer;\n\t\tthis.children = children;\n\t\ttry {\n\t\t\tthis.compiled = new vm.Script(`(async () => {\\n${body}\\n})()`, {\n\t\t\t\tfilename: `workflow:${meta.name}`,\n\t\t\t\tlineOffset: -1\n\t\t\t});\n\t\t} catch (error) {\n\t\t\tthrow new WorkflowError(`workflow script does not parse: ${String(error)}`, \"SCRIPT_PARSE\", { cause: error });\n\t\t}\n\t\tthis.context = vm.createContext({}, { name: `workflow:${meta.name}` });\n\t\tconst globals = {\n\t\t\tagent: (prompt, opts) => this.contain(this.agent(prompt, opts)),\n\t\t\tparallel: (thunks) => this.contain(this.parallel(thunks)),\n\t\t\tpipeline: (items, ...stages) => this.contain(this.pipeline(items, stages)),\n\t\t\tphase: (title) => {\n\t\t\t\tthis.phase(title);\n\t\t\t},\n\t\t\tlog: (message) => {\n\t\t\t\tthis.log(message);\n\t\t\t},\n\t\t\targs\n\t\t};\n\t\tfor (const [key, value] of Object.entries(globals)) this.context[key] = typeof value === \"function\" ? Object.freeze(value) : value;\n\t}\n\t/**\n\t* Run the script and materialize its JSON return value.\n\t* @returns A completed or error result; script failures never reject.\n\t*/\n\tasync drive() {\n\t\ttry {\n\t\t\tconst scriptPromise = this.compiled.runInContext(this.context, { timeout: this.limits.syncTimeoutMs });\n\t\t\tconst raw = await this.contain(Promise.resolve(scriptPromise));\n\t\t\treturn {\n\t\t\t\tvalue: raw === void 0 ? null : this.materializeResult(raw),\n\t\t\t\tstopReason: \"completed\",\n\t\t\t\tagentsStarted: this.started\n\t\t\t};\n\t\t} catch (error) {\n\t\t\treturn {\n\t\t\t\tvalue: null,\n\t\t\t\tstopReason: \"error\",\n\t\t\t\terror: renderThrown(error),\n\t\t\t\tagentsStarted: this.started\n\t\t\t};\n\t\t}\n\t}\n\t/**\n\t* Attach a no-op rejection consumer WITHOUT changing what the caller\n\t* receives: if the script drops the promise, a host rejection cannot become\n\t* an unhandled rejection that kills the process; if\n\t* the script does await it, it still observes the rejection.\n\t*/\n\tcontain(promise) {\n\t\tpromise.catch(() => {});\n\t\treturn promise;\n\t}\n\t/** Materialize the script's return value; violations become RESULT_UNSERIALIZABLE. */\n\tmaterializeResult(raw) {\n\t\ttry {\n\t\t\treturn materializeFromRealm(raw, \"workflow result\");\n\t\t} catch (error) {\n\t\t\t/* v8 ignore next -- defensive rethrow arm: materializeFromRealm only throws MaterializeError */\n\t\t\tif (!(error instanceof MaterializeError)) throw error;\n\t\t\tthrow new WorkflowError(`the workflow's return value is not plain JSON data — ${error.message}. Return only JSON-serializable objects/arrays/scalars.`, \"RESULT_UNSERIALIZABLE\", { cause: error });\n\t\t}\n\t}\n\t/** Acquire one concurrency slot in FIFO order. */\n\tacquireSlot() {\n\t\tif (this.activeSlots < this.limits.maxConcurrentAgents) {\n\t\t\tthis.activeSlots += 1;\n\t\t\treturn Promise.resolve();\n\t\t}\n\t\treturn new Promise((resolve) => {\n\t\t\tthis.slotWaiters.push(() => {\n\t\t\t\tthis.activeSlots += 1;\n\t\t\t\tresolve();\n\t\t\t});\n\t\t});\n\t}\n\treleaseSlot() {\n\t\tthis.activeSlots -= 1;\n\t\tconst next = this.slotWaiters.shift();\n\t\tif (next) next();\n\t}\n\t/** The `agent(prompt, opts)` hook. */\n\tasync agent(rawPrompt, rawOpts) {\n\t\tif (typeof rawPrompt !== \"string\" || rawPrompt.length === 0) throw new WorkflowError(\"agent() requires a non-empty prompt string\", \"INVALID_ARGUMENT\");\n\t\tconst opts = this.readAgentOptions(rawOpts);\n\t\tif (this.started >= this.limits.maxTotalAgents) throw new WorkflowError(`this run reached its total agent cap (${this.limits.maxTotalAgents}) — a runaway-loop backstop; raise the applicable maxTotalAgents limit if the scale is intentional`, \"AGENT_CAP\");\n\t\tthis.started += 1;\n\t\tconst seq = this.started;\n\t\tconst label = opts.label ?? defaultLabel(rawPrompt);\n\t\tconst phase = opts.phase ?? this.currentPhase;\n\t\tawait this.acquireSlot();\n\t\ttry {\n\t\t\tlet run;\n\t\t\ttry {\n\t\t\t\trun = await this.children.startAgent({\n\t\t\t\t\tprompt: rawPrompt,\n\t\t\t\t\t...opts.schema !== void 0 ? { schema: opts.schema } : {},\n\t\t\t\t\t...opts.provider !== void 0 ? { provider: opts.provider } : {},\n\t\t\t\t\t...opts.model !== void 0 ? { model: opts.model } : {}\n\t\t\t\t});\n\t\t\t} catch (error) {\n\t\t\t\tthrow new WorkflowError(`agent() could not start a child: ${renderThrown(error)}`, \"AGENT_START\", { cause: error });\n\t\t\t}\n\t\t\tconst info = {\n\t\t\t\tseq,\n\t\t\t\tlabel,\n\t\t\t\t...phase !== void 0 ? { phase } : {},\n\t\t\t\tchildId: brandString(run.id)\n\t\t\t};\n\t\t\tthis.observer.agentStart(info);\n\t\t\ttry {\n\t\t\t\tlet result;\n\t\t\t\ttry {\n\t\t\t\t\tresult = await run.result;\n\t\t\t\t} catch (error) {\n\t\t\t\t\tthis.observer.agentEnd({\n\t\t\t\t\t\t...info,\n\t\t\t\t\t\toutcome: \"failed\"\n\t\t\t\t\t});\n\t\t\t\t\tthrow new WorkflowError(`child agent run failed: ${renderThrown(error)}`, \"AGENT_RESULT\", { cause: error });\n\t\t\t\t}\n\t\t\t\tif (result.stopReason === \"completed\") {\n\t\t\t\t\tif (opts.schema !== void 0) {\n\t\t\t\t\t\tif (result.structured === void 0) {\n\t\t\t\t\t\t\tthis.observer.agentEnd({\n\t\t\t\t\t\t\t\t...info,\n\t\t\t\t\t\t\t\toutcome: \"failed\"\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t\treturn null;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tthis.observer.agentEnd({\n\t\t\t\t\t\t\t...info,\n\t\t\t\t\t\t\toutcome: \"completed\"\n\t\t\t\t\t\t});\n\t\t\t\t\t\treturn result.structured;\n\t\t\t\t\t}\n\t\t\t\t\tthis.observer.agentEnd({\n\t\t\t\t\t\t...info,\n\t\t\t\t\t\toutcome: \"completed\"\n\t\t\t\t\t});\n\t\t\t\t\treturn outputText(result.output);\n\t\t\t\t}\n\t\t\t\tthis.observer.agentEnd({\n\t\t\t\t\t...info,\n\t\t\t\t\toutcome: \"failed\"\n\t\t\t\t});\n\t\t\t\treturn null;\n\t\t\t} finally {\n\t\t\t\tawait run.dispose();\n\t\t\t}\n\t\t} finally {\n\t\t\tthis.releaseSlot();\n\t\t}\n\t}\n\t/** Materialize + validate the `agent()` options bag from the realm. */\n\treadAgentOptions(rawOpts) {\n\t\tif (rawOpts === void 0) return {};\n\t\tlet opts;\n\t\ttry {\n\t\t\topts = materializeFromRealm(rawOpts, \"agent() options\");\n\t\t} catch (error) {\n\t\t\t/* v8 ignore next -- defensive rethrow arm: materializeFromRealm only throws MaterializeError */\n\t\t\tif (!(error instanceof MaterializeError)) throw error;\n\t\t\tthrow new WorkflowError(`agent() options must be plain JSON data — ${error.message}`, \"INVALID_ARGUMENT\", { cause: error });\n\t\t}\n\t\tif (typeof opts !== \"object\" || opts === null || Array.isArray(opts)) throw new WorkflowError(\"agent() options must be an object\", \"INVALID_ARGUMENT\");\n\t\tconst record = opts;\n\t\tfor (const key of Object.keys(record)) {\n\t\t\tif (SUPPORTED_AGENT_OPTIONS.has(key)) continue;\n\t\t\tif (DEFERRED_AGENT_OPTIONS.has(key)) throw new WorkflowError(`agent() option \"${key}\" is deferred and not supported by this engine (supported: label, phase, schema, provider, model)`, \"UNSUPPORTED_OPTION\");\n\t\t\tthrow new WorkflowError(`agent() option \"${key}\" is not recognized (supported: label, phase, schema, provider, model)`, \"UNSUPPORTED_OPTION\");\n\t\t}\n\t\tfor (const key of [\n\t\t\t\"label\",\n\t\t\t\"phase\",\n\t\t\t\"provider\",\n\t\t\t\"model\"\n\t\t]) if (record[key] !== void 0 && typeof record[key] !== \"string\") throw new WorkflowError(`agent() option \"${key}\" must be a string`, \"INVALID_ARGUMENT\");\n\t\tlet schema;\n\t\tif (record.schema !== void 0) try {\n\t\t\tassertObjectJsonSchema(record.schema);\n\t\t\tschema = record.schema;\n\t\t} catch (error) {\n\t\t\t/* v8 ignore next -- defensive rethrow arm: assertObjectJsonSchema only throws JsonSchemaError */\n\t\t\tif (!(error instanceof JsonSchemaError)) throw error;\n\t\t\tthrow new WorkflowError(`agent() schema is outside the supported subset — ${error.message}`, \"UNSUPPORTED_SCHEMA\", { cause: error });\n\t\t}\n\t\treturn {\n\t\t\t...record.label !== void 0 ? { label: record.label } : {},\n\t\t\t...record.phase !== void 0 ? { phase: record.phase } : {},\n\t\t\t...record.provider !== void 0 ? { provider: record.provider } : {},\n\t\t\t...record.model !== void 0 ? { model: record.model } : {},\n\t\t\t...schema !== void 0 ? { schema } : {}\n\t\t};\n\t}\n\t/** The `parallel(thunks)` hook: each thunk caught → `null`; fatal errors propagate. */\n\tasync parallel(rawThunks) {\n\t\tif (!Array.isArray(rawThunks)) throw new WorkflowError(\"parallel() requires an array of zero-argument functions\", \"INVALID_ARGUMENT\");\n\t\tthis.assertItemCap(rawThunks.length, \"parallel()\");\n\t\tconst thunks = rawThunks.map((thunk, index) => {\n\t\t\tif (typeof thunk !== \"function\") throw new WorkflowError(`parallel() item ${index} is not a function`, \"INVALID_ARGUMENT\");\n\t\t\treturn thunk;\n\t\t});\n\t\treturn Promise.all(thunks.map(async (thunk) => {\n\t\t\ttry {\n\t\t\t\treturn await thunk();\n\t\t\t} catch (error) {\n\t\t\t\tif (isFatalWorkflowError(error)) throw error;\n\t\t\t\treturn null;\n\t\t\t}\n\t\t}));\n\t}\n\t/** The `pipeline(items, ...stages)` hook: per-item stage chains, NO cross-stage barrier. */\n\tasync pipeline(rawItems, rawStages) {\n\t\tif (!Array.isArray(rawItems)) throw new WorkflowError(\"pipeline() requires an items array\", \"INVALID_ARGUMENT\");\n\t\tthis.assertItemCap(rawItems.length, \"pipeline()\");\n\t\tif (rawStages.length === 0) throw new WorkflowError(\"pipeline() requires at least one stage function\", \"INVALID_ARGUMENT\");\n\t\tconst stages = rawStages.map((stage, index) => {\n\t\t\tif (typeof stage !== \"function\") throw new WorkflowError(`pipeline() stage ${index} is not a function`, \"INVALID_ARGUMENT\");\n\t\t\treturn stage;\n\t\t});\n\t\treturn Promise.all(rawItems.map(async (item, index) => {\n\t\t\tlet value = item;\n\t\t\ttry {\n\t\t\t\tfor (const stage of stages) value = await stage(value, item, index);\n\t\t\t\treturn value;\n\t\t\t} catch (error) {\n\t\t\t\tif (isFatalWorkflowError(error)) throw error;\n\t\t\t\treturn null;\n\t\t\t}\n\t\t}));\n\t}\n\tassertItemCap(length, hook) {\n\t\tif (length > this.limits.maxItemsPerCall) throw new WorkflowError(`${hook} received ${length} items — over the per-call cap (${this.limits.maxItemsPerCall}); split the work or raise maxItemsPerCall in the engine config`, \"ITEM_CAP\");\n\t}\n\t/** The `phase(title)` hook: sets the current label for subsequent `agent()` calls and notifies observers. */\n\tphase(title) {\n\t\tif (typeof title !== \"string\" || title.length === 0) throw new WorkflowError(\"phase() requires a non-empty title string\", \"INVALID_ARGUMENT\");\n\t\tthis.currentPhase = title;\n\t\tthis.observer.phase(title);\n\t}\n\t/** The `log(message)` hook: narration to observers. */\n\tlog(message) {\n\t\tif (typeof message !== \"string\") throw new WorkflowError(\"log() requires a message string\", \"INVALID_ARGUMENT\");\n\t\tthis.observer.log(message);\n\t}\n};\n//#endregion\n//#region packages/workflow/workflow-ptc/src/guest.ts\n/**\n* Run a workflow with one progress batch in flight. Drain progress before child\n* disposal and the terminal result; PTC and the host own cancellation and cleanup.\n* @param host - JSON callbacks owned by this workflow run.\n* @returns The script result after progress delivery; initialization failures reject.\n*/\nasync function runWorkflowGuest(host) {\n\tconst init = await host.begin({});\n\tlet queued = [];\n\tlet inFlight;\n\tlet progressError;\n\tconst flush = () => {\n\t\tif (inFlight !== void 0 || queued.length === 0) return;\n\t\tconst batch = queued;\n\t\tqueued = [];\n\t\tinFlight = host.progress(batch).then(() => {\n\t\t\tinFlight = void 0;\n\t\t\tflush();\n\t\t}, (error) => {\n\t\t\tprogressError = renderThrown(error);\n\t\t\tqueued = [];\n\t\t\tinFlight = void 0;\n\t\t});\n\t};\n\tconst send = (event) => {\n\t\tif (progressError !== void 0) return;\n\t\tqueued.push(event);\n\t\tflush();\n\t};\n\tconst drain = async () => {\n\t\twhile (inFlight !== void 0) await inFlight;\n\t};\n\tconst result = await new WorkflowExecution(init.meta, init.body, init.args, init.limits, {\n\t\tphase: (title) => {\n\t\t\tsend({\n\t\t\t\ttype: \"phase\",\n\t\t\t\ttitle\n\t\t\t});\n\t\t},\n\t\tlog: (message) => {\n\t\t\tsend({\n\t\t\t\ttype: \"log\",\n\t\t\t\tmessage\n\t\t\t});\n\t\t},\n\t\tagentStart: (info) => {\n\t\t\tsend({\n\t\t\t\ttype: \"agent-start\",\n\t\t\t\tinfo\n\t\t\t});\n\t\t},\n\t\tagentEnd: (info) => {\n\t\t\tsend({\n\t\t\t\ttype: \"agent-end\",\n\t\t\t\tinfo\n\t\t\t});\n\t\t}\n\t}, { async startAgent(request) {\n\t\tconst { callId, childId } = await host.startChild(request);\n\t\tconst result = host.childResult({ callId });\n\t\tresult.catch(() => {});\n\t\treturn {\n\t\t\tid: childId,\n\t\t\tresult,\n\t\t\tasync dispose() {\n\t\t\t\tawait drain();\n\t\t\t\tawait host.disposeChild({ callId });\n\t\t\t}\n\t\t};\n\t} }).drive();\n\tawait drain();\n\treturn progressError === void 0 ? result : {\n\t\tvalue: null,\n\t\tstopReason: \"error\",\n\t\terror: progressError,\n\t\tagentsStarted: result.agentsStarted\n\t};\n}\n//#endregion\nexport { runWorkflowGuest };\n//# sourceURL=dsh-workflow-guest.js\n" +export const WORKFLOW_GUEST_SOURCE = "import * as vm from \"node:vm\";\n//#region packages/workflow/workflow-ptc/src/realm.ts\n/**\n* Materializes script VM values as plain JSON and renders thrown values.\n* Getters and proxy traps may execute inside the confined Node process;\n* process isolation and cancellation belong to PTC, not the VM.\n* @module @deepseek-ai/dsh-workflow-ptc/realm\n*/\n/** Thrown by {@link materializeFromRealm}; the caller wraps it into the right `WorkflowError` code. */\nvar MaterializeError = class extends Error {\n\tpath;\n\treason;\n\tconstructor(path, reason) {\n\t\tsuper(`${path}: ${reason}`);\n\t\tthis.path = path;\n\t\tthis.reason = reason;\n\t\tthis.name = \"MaterializeError\";\n\t}\n};\n/**\n* Render a thrown value to failure text without ever throwing: prefer the\n* `stack` (host or realm — a realm error's `stack` is a plain string read),\n* fall back to `message`, then `String()`. Reading those properties MAY run\n* script code; if that code itself throws, a fixed label is returned instead.\n* @param error - any value thrown in the host or guest realm.\n* @returns human-readable text for the failure report; prefers the stack.\n*/\nfunction renderThrown(error) {\n\ttry {\n\t\tconst stack = error?.stack;\n\t\tif (typeof stack === \"string\" && stack.length > 0) return stack;\n\t\tconst message = error?.message;\n\t\tif (typeof message === \"string\" && message.length > 0) return message;\n\t\treturn String(error);\n\t} catch {\n\t\treturn \"[unrenderable thrown value]\";\n\t}\n}\n/**\n* Whether an object's prototype chain represents a plain data object: `null`, or a prototype\n* whose own prototype is `null` (the realm's `Object.prototype` — which we\n* cannot compare by identity across realms). A `Date`/`Map`/class instance\n* has a longer chain and is rejected.\n*/\nfunction hasPlainPrototype(value) {\n\tconst proto = Object.getPrototypeOf(value);\n\tif (proto === null) return true;\n\treturn Object.getPrototypeOf(proto) === null;\n}\n/**\n* Copy `value` (typically from the vm realm) into plain host JSON data. Root `undefined` is\n* returned unchanged; nested `undefined` and values JSON cannot represent losslessly fail\n* with the offending path. Property accessors run normally, and a throwing read is wrapped\n* with its rendered failure.\n*\n* @param value - the realm value to materialize.\n* @param root - the path label for the root value (error messages).\n* @returns the host-realm copy (plain objects/arrays/scalars only).\n* @throws {@link MaterializeError} for unsupported values, cycles, sparse arrays, exotic\n* prototypes, or property reads that throw.\n*/\nfunction materializeFromRealm(value, root = \"value\") {\n\tif (value === void 0) return void 0;\n\ttry {\n\t\treturn materialize(value, root, /* @__PURE__ */ new Set());\n\t} catch (error) {\n\t\tif (error instanceof MaterializeError) throw error;\n\t\tthrow new MaterializeError(root, `reading the value threw: ${renderThrown(error)}`);\n\t}\n}\nfunction materialize(value, path, seen) {\n\tswitch (typeof value) {\n\t\tcase \"boolean\":\n\t\tcase \"string\": return value;\n\t\tcase \"number\":\n\t\t\tif (!Number.isFinite(value)) throw new MaterializeError(path, \"non-finite numbers are not JSON data\");\n\t\t\treturn value;\n\t\tcase \"bigint\": throw new MaterializeError(path, \"bigints are not JSON data\");\n\t\tcase \"function\": throw new MaterializeError(path, \"functions are not plain JSON data\");\n\t\tcase \"symbol\": throw new MaterializeError(path, \"symbols are not plain JSON data\");\n\t\tcase \"undefined\": throw new MaterializeError(path, \"undefined is not JSON data\");\n\t\tcase \"object\": break;\n\t}\n\tif (value === null) return null;\n\tconst objectValue = value;\n\tif (seen.has(objectValue)) throw new MaterializeError(path, \"circular references are not JSON data\");\n\tseen.add(objectValue);\n\ttry {\n\t\tif (Array.isArray(objectValue)) return materializeArray(objectValue, path, seen);\n\t\treturn materializeObject(objectValue, path, seen);\n\t} finally {\n\t\tseen.delete(objectValue);\n\t}\n}\nfunction materializeArray(value, path, seen) {\n\tconst out = [];\n\tfor (let index = 0; index < value.length; index++) {\n\t\tif (!(index in value)) throw new MaterializeError(`${path}[${index}]`, \"sparse arrays are not JSON data\");\n\t\tout.push(materialize(value[index], `${path}[${index}]`, seen));\n\t}\n\tfor (const key of Object.keys(value)) {\n\t\tconst index = Number(key);\n\t\tif (!Number.isInteger(index) || index < 0 || index >= value.length) throw new MaterializeError(`${path}.${key}`, \"arrays with non-index properties are not JSON data\");\n\t}\n\tif (Object.getOwnPropertySymbols(value).length > 0) throw new MaterializeError(path, \"symbol-keyed properties are not plain JSON data\");\n\treturn out;\n}\nfunction materializeObject(value, path, seen) {\n\tif (!hasPlainPrototype(value)) throw new MaterializeError(path, \"only plain objects and arrays are JSON data (exotic prototype)\");\n\tif (Object.getOwnPropertySymbols(value).length > 0) throw new MaterializeError(path, \"symbol-keyed properties are not plain JSON data\");\n\tconst out = {};\n\tfor (const key of Object.keys(value)) Object.defineProperty(out, key, {\n\t\tvalue: materialize(value[key], `${path}.${key}`, seen),\n\t\tenumerable: true,\n\t\twritable: true,\n\t\tconfigurable: true\n\t});\n\treturn out;\n}\n//#endregion\n//#region packages/util/brand/src/index.ts\n/**\n* Apply a compile-time string brand without changing the value.\n* @param value - string admitted by the domain that owns the target brand.\n* @returns the same string with the requested compile-time brand.\n*/\nfunction brandString(value) {\n\treturn value;\n}\n//#endregion\n//#region packages/llm/llm/src/error.ts\n/**\n* Harness error base with a stable machine-routable code and chained cause.\n* Package errors extend it so tool results and replay can retain failure class.\n* @module @deepseek-ai/dsh-llm/error\n*/\n/**\n* Base class for all harness errors. Carries a `code` (stable, programmatic —\n* e.g. `NO_ADAPTER`, `INVALID_ARGS`, `INVARIANT`) distinct from the\n* human-readable `message`, and supports `cause` chaining via the standard\n* `ErrorOptions`. `name` defaults to the subclass constructor name.\n*/\nvar HarnessError = class extends Error {\n\t/** Stable machine-routable failure class (e.g. `RATE_LIMIT`); route on this, never by parsing `message`. */\n\tcode;\n\tconstructor(message, code, options) {\n\t\tsuper(message, options);\n\t\tthis.code = code;\n\t\tthis.name = new.target.name;\n\t}\n};\nnew RegExp(String.raw`(?:^|[^a-z0-9])context[\\s_-](?:length|window)[\\s_-]` + String.raw`(?:exceed(?:ed|s)?|overflow(?:ed)?|limit[\\s_-]exceeded)(?:$|[^a-z0-9])`, \"i\");\nnew RegExp(String.raw`\\b(?:request|prompt|input|messages?)\\s+(?:is\\s+|are\\s+)?` + String.raw`too\\s+(?:large|long)\\s+for\\s+(?:(?:this|the)\\s+)?` + String.raw`(?:model(?:'s)?\\s+)?context(?:\\s+window)?\\b`, \"i\");\nnew RegExp(String.raw`\\b(?:input|prompt|request|messages?)\\b.{0,40}` + String.raw`\\b(?:exceed(?:s|ed)?|overflows?|is\\s+larger\\s+than)\\b.{0,40}` + String.raw`\\b(?:the\\s+)?(?:model(?:'s)?\\s+)?context(?:\\s+(?:length|window))?\\b`, \"i\");\n//#endregion\n//#region packages/util/values/src/index.ts\n/**\n* Mark an unreachable closed-union branch.\n* @param value - impossible value; an unhandled typed variant fails at the call site.\n* @param context - optional switch-site label included in the failure message.\n* @returns never; a runtime value that escaped its type always throws.\n*/\nfunction assertNever(value, context) {\n\tconst rendered = JSON.stringify(value) ?? String(value);\n\tthrow new Error(`unreachable variant${context ? ` in ${context}` : \"\"}: ${rendered}`);\n}\n/** Whether a realm-owned intrinsic prototype has a native constructor matching this engine's representation. */\nfunction hasIntrinsicConstructor$1(prototype, name) {\n\tconst constructor = Object.getOwnPropertyDescriptor(prototype, \"constructor\")?.value;\n\tif (typeof constructor !== \"function\") return false;\n\ttry {\n\t\treturn constructor.name === name && constructor.prototype === prototype && Function.prototype.toString.call(constructor) === Function.prototype.toString.call(name === \"Array\" ? Array : Object);\n\t} catch {\n\t\treturn false;\n\t}\n}\n/** Whether a candidate is one realm's intrinsic `Object.prototype`. */\nfunction isIntrinsicObjectPrototype$1(value) {\n\treturn Object.getPrototypeOf(value) === null && hasIntrinsicConstructor$1(value, \"Object\");\n}\n/** Whether an array uses one realm's intrinsic `Array.prototype`, not a subclass or forged prototype. */\nfunction hasPlainArrayPrototype$1(value) {\n\tconst prototype = Object.getPrototypeOf(value);\n\tif (!Array.isArray(prototype) || !hasIntrinsicConstructor$1(prototype, \"Array\")) return false;\n\tconst objectPrototype = Object.getPrototypeOf(prototype);\n\treturn typeof objectPrototype === \"object\" && objectPrototype !== null && isIntrinsicObjectPrototype$1(objectPrototype);\n}\n/** Whether an object is a plain or null-prototype record from any JavaScript realm. */\nfunction hasPlainObjectPrototype(value) {\n\tconst prototype = Object.getPrototypeOf(value);\n\treturn prototype === null || typeof prototype === \"object\" && isIntrinsicObjectPrototype$1(prototype);\n}\n/** Return every JSON-visible object key, or reject own data JSON would discard. */\nfunction enumerableStringKeys(value) {\n\tconst keys = Reflect.ownKeys(value);\n\tif (keys.some((key) => typeof key !== \"string\" || !Object.prototype.propertyIsEnumerable.call(value, key))) return void 0;\n\treturn keys;\n}\n/** Validate lossless JSON iteratively, optionally materializing a detached snapshot. */\nfunction walkJsonValue(value, detach) {\n\tconst ancestors = /* @__PURE__ */ new Set();\n\tlet root;\n\tconst assign = (destination, item) => {\n\t\tif (destination === void 0) return;\n\t\tif (destination.kind === \"root\") root = item;\n\t\telse if (destination.kind === \"array\") destination.target[destination.index] = item;\n\t\telse Object.defineProperty(destination.target, destination.key, {\n\t\t\tvalue: item,\n\t\t\tenumerable: true,\n\t\t\tconfigurable: true,\n\t\t\twritable: true\n\t\t});\n\t};\n\tconst tasks = [{\n\t\tkind: \"visit\",\n\t\tvalue,\n\t\t...detach ? { destination: { kind: \"root\" } } : {}\n\t}];\n\tfor (let task = tasks.pop(); task !== void 0; task = tasks.pop()) {\n\t\tif (task.kind === \"leave\") {\n\t\t\tancestors.delete(task.source);\n\t\t\tcontinue;\n\t\t}\n\t\tif (task.kind === \"array-item\") {\n\t\t\tif (!Object.prototype.hasOwnProperty.call(task.source, task.index)) return void 0;\n\t\t\ttasks.push({\n\t\t\t\tkind: \"visit\",\n\t\t\t\tvalue: task.source[task.index],\n\t\t\t\t...task.target === void 0 ? {} : { destination: {\n\t\t\t\t\tkind: \"array\",\n\t\t\t\t\ttarget: task.target,\n\t\t\t\t\tindex: task.index\n\t\t\t\t} }\n\t\t\t});\n\t\t\tcontinue;\n\t\t}\n\t\tif (task.kind === \"object-property\") {\n\t\t\ttasks.push({\n\t\t\t\tkind: \"visit\",\n\t\t\t\tvalue: task.source[task.key],\n\t\t\t\t...task.target === void 0 ? {} : { destination: {\n\t\t\t\t\tkind: \"object\",\n\t\t\t\t\ttarget: task.target,\n\t\t\t\t\tkey: task.key\n\t\t\t\t} }\n\t\t\t});\n\t\t\tcontinue;\n\t\t}\n\t\tconst current = task.value;\n\t\tif (current === null) {\n\t\t\tassign(task.destination, null);\n\t\t\tcontinue;\n\t\t}\n\t\tif (typeof current === \"boolean\" || typeof current === \"string\") {\n\t\t\tassign(task.destination, current);\n\t\t\tcontinue;\n\t\t}\n\t\tif (typeof current === \"number\") {\n\t\t\tif (!Number.isFinite(current) || Object.is(current, -0)) return void 0;\n\t\t\tassign(task.destination, current);\n\t\t\tcontinue;\n\t\t}\n\t\tif (typeof current !== \"object\") return void 0;\n\t\tif (ancestors.has(current)) return void 0;\n\t\tif (Array.isArray(current)) {\n\t\t\tif (!hasPlainArrayPrototype$1(current)) return void 0;\n\t\t\tconst length = current.length;\n\t\t\tif (Reflect.ownKeys(current).length !== length + 1) return void 0;\n\t\t\tconst target = detach ? [] : void 0;\n\t\t\tif (target !== void 0) assign(task.destination, target);\n\t\t\tancestors.add(current);\n\t\t\ttasks.push({\n\t\t\t\tkind: \"leave\",\n\t\t\t\tsource: current\n\t\t\t});\n\t\t\tfor (let index = length - 1; index >= 0; index--) tasks.push({\n\t\t\t\tkind: \"array-item\",\n\t\t\t\tsource: current,\n\t\t\t\tindex,\n\t\t\t\t...target === void 0 ? {} : { target }\n\t\t\t});\n\t\t\tcontinue;\n\t\t}\n\t\tif (!hasPlainObjectPrototype(current)) return void 0;\n\t\tconst keys = enumerableStringKeys(current);\n\t\tif (keys === void 0) return void 0;\n\t\tconst target = detach ? {} : void 0;\n\t\tif (target !== void 0) assign(task.destination, target);\n\t\tancestors.add(current);\n\t\ttasks.push({\n\t\t\tkind: \"leave\",\n\t\t\tsource: current\n\t\t});\n\t\tfor (let index = keys.length - 1; index >= 0; index--) {\n\t\t\tconst key = keys[index];\n\t\t\t/* v8 ignore next -- the loop is bounded by the captured key count. */\n\t\t\tif (key === void 0) return void 0;\n\t\t\ttasks.push({\n\t\t\t\tkind: \"object-property\",\n\t\t\t\tsource: current,\n\t\t\t\tkey,\n\t\t\t\t...target === void 0 ? {} : { target }\n\t\t\t});\n\t\t}\n\t}\n\treturn detach ? root : true;\n}\n/**\n* Test the same lossless JSON rules as {@link snapshotJsonValue} without detaching the value.\n* @param value - candidate value to test.\n* @returns whether the value survives a JSON round trip without loss.\n*/\nfunction isJsonValue(value) {\n\treturn walkJsonValue(value, false) === true;\n}\n//#endregion\n//#region packages/core/tools/src/json-schema.ts\n/**\n* Enforced JSON Schema subset shared by tool outputs, generated PTC mode\n* types, subagents, and workflows. The subset accepts any JSON root, an\n* annotation-only schema for unconstrained JSON, one scalar `type`, object\n* `properties`/`required`/boolean `additionalProperties`, array `items`,\n* type-correct scalar `enum`/`const`, and exact-one `oneOf`.\n*\n* Unsupported or misplaced keywords reject rather than being accepted without\n* enforcement. Consumers that require an object root apply\n* {@link assertObjectJsonSchema} before accepting input.\n* @module dsh-tools/json-schema\n*/\n/**\n* Thrown when a raw schema falls outside the enforced subset. `violations`\n* lists every offending path instead of stopping at the first author error.\n*/\nvar JsonSchemaError = class extends HarnessError {\n\t/** Individual schema violations in walk order. */\n\tviolations;\n\tconstructor(violations) {\n\t\tsuper(`unsupported JSON schema: ${violations.join(\"; \")}`, \"UNSUPPORTED_SCHEMA\");\n\t\tthis.name = \"JsonSchemaError\";\n\t\tthis.violations = violations;\n\t}\n};\nconst CONSTRAINT_KEYWORDS = new Set([\n\t\"type\",\n\t\"oneOf\",\n\t\"properties\",\n\t\"required\",\n\t\"additionalProperties\",\n\t\"items\",\n\t\"enum\",\n\t\"const\"\n]);\nconst ANNOTATION_KEYWORDS = new Set([\n\t\"description\",\n\t\"title\",\n\t\"default\",\n\t\"examples\"\n]);\nconst SCHEMA_TYPES = [\n\t\"object\",\n\t\"array\",\n\t\"string\",\n\t\"number\",\n\t\"integer\",\n\t\"boolean\",\n\t\"null\"\n];\n/** Whether a realm-owned intrinsic prototype is backed by its native constructor. */\nfunction hasIntrinsicConstructor(prototype, name) {\n\tconst constructor = Object.getOwnPropertyDescriptor(prototype, \"constructor\")?.value;\n\tif (typeof constructor !== \"function\") return false;\n\ttry {\n\t\treturn constructor.name === name && constructor.prototype === prototype && Function.prototype.toString.call(constructor) === `function ${name}() { [native code] }`;\n\t} catch {\n\t\treturn false;\n\t}\n}\n/** Whether a candidate is one realm's intrinsic `Object.prototype`. */\nfunction isIntrinsicObjectPrototype(value) {\n\treturn Object.getPrototypeOf(value) === null && hasIntrinsicConstructor(value, \"Object\");\n}\n/**\n* Test for a realm-agnostic plain JSON record without accepting arrays or\n* exotic objects.\n* @param value - candidate record from any JavaScript realm.\n* @returns Whether the value has a plain-object prototype chain.\n*/\nfunction isPlainJsonRecord(value) {\n\tif (typeof value !== \"object\" || value === null || Array.isArray(value)) return false;\n\ttry {\n\t\tconst prototype = Object.getPrototypeOf(value);\n\t\treturn prototype === null || typeof prototype === \"object\" && isIntrinsicObjectPrototype(prototype);\n\t} catch {\n\t\treturn false;\n\t}\n}\n/** Whether an array uses one realm's intrinsic `Array.prototype`. */\nfunction hasPlainArrayPrototype(value) {\n\tconst prototype = Object.getPrototypeOf(value);\n\tif (!Array.isArray(prototype) || !hasIntrinsicConstructor(prototype, \"Array\")) return false;\n\tconst objectPrototype = Object.getPrototypeOf(prototype);\n\treturn typeof objectPrototype === \"object\" && objectPrototype !== null && isIntrinsicObjectPrototype(objectPrototype);\n}\n/** Return whether a record contains only own enumerable string keys. */\nfunction hasOnlyEnumerableStringKeys(value) {\n\ttry {\n\t\treturn Reflect.ownKeys(value).every((key) => typeof key === \"string\" && Object.prototype.propertyIsEnumerable.call(value, key));\n\t} catch {\n\t\treturn false;\n\t}\n}\n/**\n* Test for an ordinary schema record whose keys survive JSON projection.\n* @param value - candidate record from any JavaScript realm.\n* @returns Whether the record has an intrinsic prototype and only own enumerable string keys.\n*/\nfunction isJsonSchemaRecord(value) {\n\treturn isPlainJsonRecord(value) && hasOnlyEnumerableStringKeys(value);\n}\n/**\n* Test for a dense ordinary array with no JSON-invisible decorations.\n* @param value - candidate array from any JavaScript realm.\n* @returns Whether the array is intrinsic, dense, and undecorated.\n*/\nfunction isPlainJsonArray(value) {\n\tif (!Array.isArray(value)) return false;\n\ttry {\n\t\tif (!hasPlainArrayPrototype(value) || Reflect.ownKeys(value).length !== value.length + 1) return false;\n\t\tfor (let index = 0; index < value.length; index++) if (!Object.hasOwn(value, index)) return false;\n\t\treturn true;\n\t} catch {\n\t\treturn false;\n\t}\n}\n/** Lossless finite JSON number, excluding negative zero. */\nfunction isJsonNumber(value) {\n\treturn typeof value === \"number\" && Number.isFinite(value) && !Object.is(value, -0);\n}\n/** Whether a scalar is valid for one declared schema type. */\nfunction scalarMatches(type, value) {\n\tswitch (type) {\n\t\tcase \"string\": return typeof value === \"string\";\n\t\tcase \"number\": return isJsonNumber(value);\n\t\tcase \"integer\": return isJsonNumber(value) && Number.isInteger(value);\n\t\tcase \"boolean\": return typeof value === \"boolean\";\n\t\tcase \"null\": return value === null;\n\t\t/* v8 ignore next -- JsonSchemaScalarType is closed; this retains compile-time exhaustiveness. */\n\t\tdefault: return assertNever(type, \"JsonSchemaType\");\n\t}\n}\n/** Keywords that are invalid beside `oneOf`. */\nconst ONE_OF_SIBLING_KEYWORDS = [\n\t\"properties\",\n\t\"required\",\n\t\"additionalProperties\",\n\t\"items\",\n\t\"enum\",\n\t\"const\"\n];\n/** Validate object-only fields after its property schemas have been visited. */\nfunction checkObjectSchemaTail(node, path, properties, violations) {\n\tconst hasRequired = Object.hasOwn(node, \"required\");\n\tconst required = hasRequired ? node.required : void 0;\n\tif (hasRequired) if (!isPlainJsonArray(required) || required.some((entry) => typeof entry !== \"string\")) violations.push(`${path}.required must be an array of strings`);\n\telse {\n\t\tconst declared = isJsonSchemaRecord(properties) ? properties : {};\n\t\tfor (const key of required) if (!Object.hasOwn(declared, key)) violations.push(`${path}.required names \"${key}\" which is not in properties`);\n\t}\n\tif (Object.hasOwn(node, \"additionalProperties\") && typeof node.additionalProperties !== \"boolean\") violations.push(`${path}.additionalProperties must be a boolean`);\n}\n/** Collect every violation for one raw schema tree without using the JavaScript call stack. */\nfunction checkSchemaNode(root, rootPath, violations, seen) {\n\tconst tasks = [{\n\t\tkind: \"enter\",\n\t\tnode: root,\n\t\tpath: rootPath\n\t}];\n\tfor (let task = tasks.pop(); task !== void 0; task = tasks.pop()) {\n\t\tif (task.kind === \"leave\") {\n\t\t\tseen.delete(task.node);\n\t\t\tcontinue;\n\t\t}\n\t\tif (task.kind === \"one-of-tail\") {\n\t\t\tfor (const key of ONE_OF_SIBLING_KEYWORDS) if (Object.hasOwn(task.node, key)) violations.push(`${task.path}.${key} is not supported beside oneOf`);\n\t\t\tcontinue;\n\t\t}\n\t\tif (task.kind === \"object-tail\") {\n\t\t\tcheckObjectSchemaTail(task.node, task.path, task.properties, violations);\n\t\t\tcontinue;\n\t\t}\n\t\tconst { node, path } = task;\n\t\tif (!isJsonSchemaRecord(node)) {\n\t\t\tviolations.push(`${path} must be a schema object`);\n\t\t\tcontinue;\n\t\t}\n\t\tif (seen.has(node)) {\n\t\t\tviolations.push(`${path} is circular`);\n\t\t\tcontinue;\n\t\t}\n\t\tseen.add(node);\n\t\ttasks.push({\n\t\t\tkind: \"leave\",\n\t\t\tnode\n\t\t});\n\t\tfor (const key of Object.keys(node)) {\n\t\t\tif (CONSTRAINT_KEYWORDS.has(key)) continue;\n\t\t\tif (ANNOTATION_KEYWORDS.has(key)) {\n\t\t\t\ttry {\n\t\t\t\t\tif (!isJsonValue(node[key])) violations.push(`${path}.${key} annotation must be lossless JSON data`);\n\t\t\t\t} catch {\n\t\t\t\t\tviolations.push(`${path}.${key} annotation must be lossless JSON data`);\n\t\t\t\t}\n\t\t\t\tcontinue;\n\t\t\t}\n\t\t\tviolations.push(`${path}.${key} is not a supported keyword (subset: type/oneOf/properties/required/additionalProperties/items/enum/const + annotations)`);\n\t\t}\n\t\tif (Object.hasOwn(node, \"description\") && typeof node.description !== \"string\") violations.push(`${path}.description must be a string`);\n\t\tif (Object.hasOwn(node, \"title\") && typeof node.title !== \"string\") violations.push(`${path}.title must be a string`);\n\t\tconst hasType = Object.hasOwn(node, \"type\");\n\t\tconst hasOneOf = Object.hasOwn(node, \"oneOf\");\n\t\tif (hasType && hasOneOf) {\n\t\t\tviolations.push(`${path} cannot declare both type and oneOf`);\n\t\t\tcontinue;\n\t\t}\n\t\tif (!hasType && !hasOneOf) {\n\t\t\tfor (const key of ONE_OF_SIBLING_KEYWORDS) if (Object.hasOwn(node, key)) violations.push(`${path}.${key} requires type or oneOf`);\n\t\t\tcontinue;\n\t\t}\n\t\tif (hasOneOf) {\n\t\t\tconst oneOf = node.oneOf;\n\t\t\ttasks.push({\n\t\t\t\tkind: \"one-of-tail\",\n\t\t\t\tnode,\n\t\t\t\tpath\n\t\t\t});\n\t\t\tif (!isPlainJsonArray(oneOf) || oneOf.length < 2) violations.push(`${path}.oneOf must be an array of at least two schemas`);\n\t\t\telse for (let index = oneOf.length - 1; index >= 0; index--) tasks.push({\n\t\t\t\tkind: \"enter\",\n\t\t\t\tnode: oneOf[index],\n\t\t\t\tpath: `${path}.oneOf[${index}]`\n\t\t\t});\n\t\t\tcontinue;\n\t\t}\n\t\tconst type = node.type;\n\t\tif (typeof type !== \"string\" || !SCHEMA_TYPES.includes(type)) {\n\t\t\tviolations.push(Array.isArray(type) ? `${path}.type must be a single type string (type arrays are not supported)` : `${path}.type must be one of ${SCHEMA_TYPES.join(\"/\")}`);\n\t\t\tcontinue;\n\t\t}\n\t\tconst schemaType = type;\n\t\tfor (const [key, types] of Object.entries({\n\t\t\tproperties: [\"object\"],\n\t\t\trequired: [\"object\"],\n\t\t\tadditionalProperties: [\"object\"],\n\t\t\titems: [\"array\"],\n\t\t\tenum: [\n\t\t\t\t\"string\",\n\t\t\t\t\"number\",\n\t\t\t\t\"integer\",\n\t\t\t\t\"boolean\",\n\t\t\t\t\"null\"\n\t\t\t],\n\t\t\tconst: [\n\t\t\t\t\"string\",\n\t\t\t\t\"number\",\n\t\t\t\t\"integer\",\n\t\t\t\t\"boolean\",\n\t\t\t\t\"null\"\n\t\t\t]\n\t\t})) if (Object.hasOwn(node, key) && !types.includes(schemaType)) violations.push(`${path}.${key} is not supported on type \"${schemaType}\"`);\n\t\tswitch (schemaType) {\n\t\t\tcase \"object\": {\n\t\t\t\tconst properties = Object.hasOwn(node, \"properties\") ? node.properties : void 0;\n\t\t\t\ttasks.push({\n\t\t\t\t\tkind: \"object-tail\",\n\t\t\t\t\tnode,\n\t\t\t\t\tpath,\n\t\t\t\t\tproperties\n\t\t\t\t});\n\t\t\t\tif (Object.hasOwn(node, \"properties\")) if (!isJsonSchemaRecord(properties)) violations.push(`${path}.properties must be an object of schemas`);\n\t\t\t\telse {\n\t\t\t\t\tconst entries = Object.entries(properties);\n\t\t\t\t\tfor (let index = entries.length - 1; index >= 0; index--) {\n\t\t\t\t\t\tconst entry = entries[index];\n\t\t\t\t\t\t/* v8 ignore next -- the loop is bounded by the captured entry count. */\n\t\t\t\t\t\tif (entry === void 0) continue;\n\t\t\t\t\t\ttasks.push({\n\t\t\t\t\t\t\tkind: \"enter\",\n\t\t\t\t\t\t\tnode: entry[1],\n\t\t\t\t\t\t\tpath: `${path}.properties.${entry[0]}`\n\t\t\t\t\t\t});\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tcase \"array\":\n\t\t\t\tif (Object.hasOwn(node, \"items\")) tasks.push({\n\t\t\t\t\tkind: \"enter\",\n\t\t\t\t\tnode: node.items,\n\t\t\t\t\tpath: `${path}.items`\n\t\t\t\t});\n\t\t\t\tbreak;\n\t\t\tcase \"string\":\n\t\t\tcase \"number\":\n\t\t\tcase \"integer\":\n\t\t\tcase \"boolean\":\n\t\t\tcase \"null\": {\n\t\t\t\tconst hasEnum = Object.hasOwn(node, \"enum\");\n\t\t\t\tconst allowed = hasEnum ? node.enum : void 0;\n\t\t\t\tconst enumValid = isPlainJsonArray(allowed) && allowed.length > 0 && allowed.every((entry) => scalarMatches(schemaType, entry));\n\t\t\t\tif (hasEnum && !enumValid) violations.push(`${path}.enum must be a non-empty array of ${schemaType} values`);\n\t\t\t\tconst hasConst = Object.hasOwn(node, \"const\");\n\t\t\t\tconst declaredConst = hasConst ? node.const : void 0;\n\t\t\t\tconst constValid = scalarMatches(schemaType, declaredConst);\n\t\t\t\tif (hasConst) {\n\t\t\t\t\tif (!constValid) violations.push(`${path}.const must be a ${schemaType} value`);\n\t\t\t\t\telse if (enumValid && !allowed.includes(declaredConst)) violations.push(`${path}.const must be one of ${path}.enum when both are declared`);\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\t/* v8 ignore next -- schemaType was narrowed from the closed SCHEMA_TYPES table above. */\n\t\t\tdefault: assertNever(schemaType, \"JsonSchemaType\");\n\t\t}\n\t}\n}\n/**\n* Assert the enforced subset plus the object-root constraint retained by\n* subagent and workflow structured outputs.\n* @param schema - untrusted caller-supplied schema.\n* @returns Assertion that the schema belongs to the supported subset and has an object root.\n*/\nfunction assertObjectJsonSchema(schema) {\n\tconst violations = [];\n\tcheckSchemaNode(schema, \"schema\", violations, /* @__PURE__ */ new Set());\n\tif (violations.length === 0 && (!isJsonSchemaRecord(schema) || !Object.hasOwn(schema, \"type\") || schema.type !== \"object\")) violations.push(\"schema.type must be \\\"object\\\" (structured output is object-rooted)\");\n\tif (violations.length > 0) throw new JsonSchemaError(violations);\n}\n//#endregion\n//#region packages/workflow/workflow/src/index.ts\n/**\n* Typed error for workflow-seam failures. Extends {@link HarnessError}, so the\n* `code` is machine-routable taxonomy. `fatal` drives the combinator\n* discipline: `parallel()`/`pipeline()` re-throw a fatal error (a typo'd\n* option or a tripped cap must kill the script loudly), and reserve the\n* per-item `null` for child-run failures and ordinary in-stage script errors.\n* Every {@link WorkflowErrorCode} is fatal; the flag exists so the\n* distinction is explicit at every catch site rather than implied.\n*/\nvar WorkflowError = class extends HarnessError {\n\t/** Whether combinators must propagate this error instead of nulling the item. */\n\tfatal;\n\tconstructor(message, code, options) {\n\t\tsuper(message, code, options);\n\t\tthis.name = \"WorkflowError\";\n\t\tthis.fatal = options?.fatal ?? true;\n\t}\n};\n/**\n* Whether combinators must re-throw `error` instead of mapping the item to `null`.\n* @param error - any thrown value; fatality is host `instanceof` (unforgeable from a script realm).\n* @returns true iff `error` is a {@link WorkflowError} whose `fatal` flag is set.\n*/\nfunction isFatalWorkflowError(error) {\n\treturn error instanceof WorkflowError && error.fatal;\n}\n//#endregion\n//#region packages/workflow/workflow-ptc/src/runtime.ts\n/**\n* Workflow VM hooks, child callbacks, ordinary concurrency limits and result serialization.\n* PTC owns process confinement and cancellation. Fatal hook and provider failures propagate\n* through combinators; ordinary child failures and stage errors become per-item nulls.\n* @module @deepseek-ai/dsh-workflow-ptc/runtime\n*/\n/** The `agent()` options the script may pass; everything else rejects loud. */\nconst SUPPORTED_AGENT_OPTIONS = new Set([\n\t\"label\",\n\t\"phase\",\n\t\"schema\",\n\t\"provider\",\n\t\"model\"\n]);\n/** Deferred Claude Code options we name explicitly in the rejection message. */\nconst DEFERRED_AGENT_OPTIONS = new Set([\n\t\"effort\",\n\t\"isolation\",\n\t\"agentType\"\n]);\n/** Flatten a child's final output blocks to text (the non-schema `agent()` result). */\nfunction outputText(blocks) {\n\treturn blocks.filter((block) => block.type === \"text\").map((block) => block.text).join(\"\");\n}\n/** A short display label derived from the prompt when the script passes none. */\nfunction defaultLabel(prompt) {\n\tconst newline = prompt.indexOf(\"\\n\");\n\tconst line = newline === -1 ? prompt : prompt.slice(0, newline);\n\treturn line.length <= 48 ? line : `${line.slice(0, 47)}…`;\n}\n/**\n* One script execution inside the confined Node process. The host owns\n* cancellation and cleanup of any dropped child work.\n*/\nvar WorkflowExecution = class {\n\tlimits;\n\tobserver;\n\tchildren;\n\t/** 1-based count of `agent()` calls started (the `agentsStarted` result field). */\n\tstarted = 0;\n\tactiveSlots = 0;\n\tslotWaiters = [];\n\tcurrentPhase;\n\tcontext;\n\tcompiled;\n\tconstructor(meta, body, args, limits, observer, children) {\n\t\tthis.limits = limits;\n\t\tthis.observer = observer;\n\t\tthis.children = children;\n\t\ttry {\n\t\t\tthis.compiled = new vm.Script(`(async () => {\\n${body}\\n})()`, {\n\t\t\t\tfilename: `workflow:${meta.name}`,\n\t\t\t\tlineOffset: -1\n\t\t\t});\n\t\t} catch (error) {\n\t\t\tthrow new WorkflowError(`workflow script does not parse: ${String(error)}`, \"SCRIPT_PARSE\", { cause: error });\n\t\t}\n\t\tthis.context = vm.createContext({}, { name: `workflow:${meta.name}` });\n\t\tconst globals = {\n\t\t\tagent: (prompt, opts) => this.contain(this.agent(prompt, opts)),\n\t\t\tparallel: (thunks) => this.contain(this.parallel(thunks)),\n\t\t\tpipeline: (items, ...stages) => this.contain(this.pipeline(items, stages)),\n\t\t\tphase: (title) => {\n\t\t\t\tthis.phase(title);\n\t\t\t},\n\t\t\tlog: (message) => {\n\t\t\t\tthis.log(message);\n\t\t\t},\n\t\t\targs\n\t\t};\n\t\tfor (const [key, value] of Object.entries(globals)) this.context[key] = typeof value === \"function\" ? Object.freeze(value) : value;\n\t}\n\t/**\n\t* Run the script and materialize its JSON return value.\n\t* @returns A completed or error result; script failures never reject.\n\t*/\n\tasync drive() {\n\t\ttry {\n\t\t\tconst scriptPromise = this.compiled.runInContext(this.context, { timeout: this.limits.syncTimeoutMs });\n\t\t\tconst raw = await this.contain(Promise.resolve(scriptPromise));\n\t\t\treturn {\n\t\t\t\tvalue: raw === void 0 ? null : this.materializeResult(raw),\n\t\t\t\tstopReason: \"completed\",\n\t\t\t\tagentsStarted: this.started\n\t\t\t};\n\t\t} catch (error) {\n\t\t\treturn {\n\t\t\t\tvalue: null,\n\t\t\t\tstopReason: \"error\",\n\t\t\t\terror: renderThrown(error),\n\t\t\t\tagentsStarted: this.started\n\t\t\t};\n\t\t}\n\t}\n\t/**\n\t* Attach a no-op rejection consumer WITHOUT changing what the caller\n\t* receives: if the script drops the promise, a host rejection cannot become\n\t* an unhandled rejection that kills the process; if\n\t* the script does await it, it still observes the rejection.\n\t*/\n\tcontain(promise) {\n\t\tpromise.catch(() => {});\n\t\treturn promise;\n\t}\n\t/** Materialize the script's return value; violations become RESULT_UNSERIALIZABLE. */\n\tmaterializeResult(raw) {\n\t\ttry {\n\t\t\treturn materializeFromRealm(raw, \"workflow result\");\n\t\t} catch (error) {\n\t\t\t/* v8 ignore next -- defensive rethrow arm: materializeFromRealm only throws MaterializeError */\n\t\t\tif (!(error instanceof MaterializeError)) throw error;\n\t\t\tthrow new WorkflowError(`the workflow's return value is not plain JSON data — ${error.message}. Return only JSON-serializable objects/arrays/scalars.`, \"RESULT_UNSERIALIZABLE\", { cause: error });\n\t\t}\n\t}\n\t/** Acquire one concurrency slot in FIFO order. */\n\tacquireSlot() {\n\t\tif (this.activeSlots < this.limits.maxConcurrentAgents) {\n\t\t\tthis.activeSlots += 1;\n\t\t\treturn Promise.resolve();\n\t\t}\n\t\treturn new Promise((resolve) => {\n\t\t\tthis.slotWaiters.push(() => {\n\t\t\t\tthis.activeSlots += 1;\n\t\t\t\tresolve();\n\t\t\t});\n\t\t});\n\t}\n\treleaseSlot() {\n\t\tthis.activeSlots -= 1;\n\t\tconst next = this.slotWaiters.shift();\n\t\tif (next) next();\n\t}\n\t/** The `agent(prompt, opts)` hook. */\n\tasync agent(rawPrompt, rawOpts) {\n\t\tif (typeof rawPrompt !== \"string\" || rawPrompt.length === 0) throw new WorkflowError(\"agent() requires a non-empty prompt string\", \"INVALID_ARGUMENT\");\n\t\tconst opts = this.readAgentOptions(rawOpts);\n\t\tif (this.started >= this.limits.maxTotalAgents) throw new WorkflowError(`this run reached its total agent cap (${this.limits.maxTotalAgents}) — a runaway-loop backstop; raise the applicable maxTotalAgents limit if the scale is intentional`, \"AGENT_CAP\");\n\t\tthis.started += 1;\n\t\tconst seq = this.started;\n\t\tconst label = opts.label ?? defaultLabel(rawPrompt);\n\t\tconst phase = opts.phase ?? this.currentPhase;\n\t\tawait this.acquireSlot();\n\t\ttry {\n\t\t\tlet run;\n\t\t\ttry {\n\t\t\t\trun = await this.children.startAgent({\n\t\t\t\t\tprompt: rawPrompt,\n\t\t\t\t\t...opts.schema !== void 0 ? { schema: opts.schema } : {},\n\t\t\t\t\t...opts.provider !== void 0 ? { provider: opts.provider } : {},\n\t\t\t\t\t...opts.model !== void 0 ? { model: opts.model } : {}\n\t\t\t\t});\n\t\t\t} catch (error) {\n\t\t\t\tthrow new WorkflowError(`agent() could not start a child: ${renderThrown(error)}`, \"AGENT_START\", { cause: error });\n\t\t\t}\n\t\t\tconst info = {\n\t\t\t\tseq,\n\t\t\t\tlabel,\n\t\t\t\t...phase !== void 0 ? { phase } : {},\n\t\t\t\tchildId: brandString(run.id)\n\t\t\t};\n\t\t\tthis.observer.agentStart(info);\n\t\t\ttry {\n\t\t\t\tlet result;\n\t\t\t\ttry {\n\t\t\t\t\tresult = await run.result;\n\t\t\t\t} catch (error) {\n\t\t\t\t\tthis.observer.agentEnd({\n\t\t\t\t\t\t...info,\n\t\t\t\t\t\toutcome: \"failed\"\n\t\t\t\t\t});\n\t\t\t\t\tthrow new WorkflowError(`child agent run failed: ${renderThrown(error)}`, \"AGENT_RESULT\", { cause: error });\n\t\t\t\t}\n\t\t\t\tif (result.stopReason === \"completed\") {\n\t\t\t\t\tif (opts.schema !== void 0) {\n\t\t\t\t\t\tif (result.structured === void 0) {\n\t\t\t\t\t\t\tthis.observer.agentEnd({\n\t\t\t\t\t\t\t\t...info,\n\t\t\t\t\t\t\t\toutcome: \"failed\"\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t\treturn null;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tthis.observer.agentEnd({\n\t\t\t\t\t\t\t...info,\n\t\t\t\t\t\t\toutcome: \"completed\"\n\t\t\t\t\t\t});\n\t\t\t\t\t\treturn result.structured;\n\t\t\t\t\t}\n\t\t\t\t\tthis.observer.agentEnd({\n\t\t\t\t\t\t...info,\n\t\t\t\t\t\toutcome: \"completed\"\n\t\t\t\t\t});\n\t\t\t\t\treturn outputText(result.output);\n\t\t\t\t}\n\t\t\t\tthis.observer.agentEnd({\n\t\t\t\t\t...info,\n\t\t\t\t\toutcome: \"failed\"\n\t\t\t\t});\n\t\t\t\treturn null;\n\t\t\t} finally {\n\t\t\t\tawait run.dispose();\n\t\t\t}\n\t\t} finally {\n\t\t\tthis.releaseSlot();\n\t\t}\n\t}\n\t/** Materialize + validate the `agent()` options bag from the realm. */\n\treadAgentOptions(rawOpts) {\n\t\tif (rawOpts === void 0) return {};\n\t\tlet opts;\n\t\ttry {\n\t\t\topts = materializeFromRealm(rawOpts, \"agent() options\");\n\t\t} catch (error) {\n\t\t\t/* v8 ignore next -- defensive rethrow arm: materializeFromRealm only throws MaterializeError */\n\t\t\tif (!(error instanceof MaterializeError)) throw error;\n\t\t\tthrow new WorkflowError(`agent() options must be plain JSON data — ${error.message}`, \"INVALID_ARGUMENT\", { cause: error });\n\t\t}\n\t\tif (typeof opts !== \"object\" || opts === null || Array.isArray(opts)) throw new WorkflowError(\"agent() options must be an object\", \"INVALID_ARGUMENT\");\n\t\tconst record = opts;\n\t\tfor (const key of Object.keys(record)) {\n\t\t\tif (SUPPORTED_AGENT_OPTIONS.has(key)) continue;\n\t\t\tif (DEFERRED_AGENT_OPTIONS.has(key)) throw new WorkflowError(`agent() option \"${key}\" is deferred and not supported by this engine (supported: label, phase, schema, provider, model)`, \"UNSUPPORTED_OPTION\");\n\t\t\tthrow new WorkflowError(`agent() option \"${key}\" is not recognized (supported: label, phase, schema, provider, model)`, \"UNSUPPORTED_OPTION\");\n\t\t}\n\t\tfor (const key of [\n\t\t\t\"label\",\n\t\t\t\"phase\",\n\t\t\t\"provider\",\n\t\t\t\"model\"\n\t\t]) if (record[key] !== void 0 && typeof record[key] !== \"string\") throw new WorkflowError(`agent() option \"${key}\" must be a string`, \"INVALID_ARGUMENT\");\n\t\tlet schema;\n\t\tif (record.schema !== void 0) try {\n\t\t\tassertObjectJsonSchema(record.schema);\n\t\t\tschema = record.schema;\n\t\t} catch (error) {\n\t\t\t/* v8 ignore next -- defensive rethrow arm: assertObjectJsonSchema only throws JsonSchemaError */\n\t\t\tif (!(error instanceof JsonSchemaError)) throw error;\n\t\t\tthrow new WorkflowError(`agent() schema is outside the supported subset — ${error.message}`, \"UNSUPPORTED_SCHEMA\", { cause: error });\n\t\t}\n\t\treturn {\n\t\t\t...record.label !== void 0 ? { label: record.label } : {},\n\t\t\t...record.phase !== void 0 ? { phase: record.phase } : {},\n\t\t\t...record.provider !== void 0 ? { provider: record.provider } : {},\n\t\t\t...record.model !== void 0 ? { model: record.model } : {},\n\t\t\t...schema !== void 0 ? { schema } : {}\n\t\t};\n\t}\n\t/** The `parallel(thunks)` hook: each thunk caught → `null`; fatal errors propagate. */\n\tasync parallel(rawThunks) {\n\t\tif (!Array.isArray(rawThunks)) throw new WorkflowError(\"parallel() requires an array of zero-argument functions\", \"INVALID_ARGUMENT\");\n\t\tthis.assertItemCap(rawThunks.length, \"parallel()\");\n\t\tconst thunks = rawThunks.map((thunk, index) => {\n\t\t\tif (typeof thunk !== \"function\") throw new WorkflowError(`parallel() item ${index} is not a function`, \"INVALID_ARGUMENT\");\n\t\t\treturn thunk;\n\t\t});\n\t\treturn Promise.all(thunks.map(async (thunk) => {\n\t\t\ttry {\n\t\t\t\treturn await thunk();\n\t\t\t} catch (error) {\n\t\t\t\tif (isFatalWorkflowError(error)) throw error;\n\t\t\t\treturn null;\n\t\t\t}\n\t\t}));\n\t}\n\t/** The `pipeline(items, ...stages)` hook: per-item stage chains, NO cross-stage barrier. */\n\tasync pipeline(rawItems, rawStages) {\n\t\tif (!Array.isArray(rawItems)) throw new WorkflowError(\"pipeline() requires an items array\", \"INVALID_ARGUMENT\");\n\t\tthis.assertItemCap(rawItems.length, \"pipeline()\");\n\t\tif (rawStages.length === 0) throw new WorkflowError(\"pipeline() requires at least one stage function\", \"INVALID_ARGUMENT\");\n\t\tconst stages = rawStages.map((stage, index) => {\n\t\t\tif (typeof stage !== \"function\") throw new WorkflowError(`pipeline() stage ${index} is not a function`, \"INVALID_ARGUMENT\");\n\t\t\treturn stage;\n\t\t});\n\t\treturn Promise.all(rawItems.map(async (item, index) => {\n\t\t\tlet value = item;\n\t\t\ttry {\n\t\t\t\tfor (const stage of stages) value = await stage(value, item, index);\n\t\t\t\treturn value;\n\t\t\t} catch (error) {\n\t\t\t\tif (isFatalWorkflowError(error)) throw error;\n\t\t\t\treturn null;\n\t\t\t}\n\t\t}));\n\t}\n\tassertItemCap(length, hook) {\n\t\tif (length > this.limits.maxItemsPerCall) throw new WorkflowError(`${hook} received ${length} items — over the per-call cap (${this.limits.maxItemsPerCall}); split the work or raise maxItemsPerCall in the engine config`, \"ITEM_CAP\");\n\t}\n\t/** The `phase(title)` hook: sets the current label for subsequent `agent()` calls and notifies observers. */\n\tphase(title) {\n\t\tif (typeof title !== \"string\" || title.length === 0) throw new WorkflowError(\"phase() requires a non-empty title string\", \"INVALID_ARGUMENT\");\n\t\tthis.currentPhase = title;\n\t\tthis.observer.phase(title);\n\t}\n\t/** The `log(message)` hook: narration to observers. */\n\tlog(message) {\n\t\tif (typeof message !== \"string\") throw new WorkflowError(\"log() requires a message string\", \"INVALID_ARGUMENT\");\n\t\tthis.observer.log(message);\n\t}\n};\n//#endregion\n//#region packages/workflow/workflow-ptc/src/guest.ts\n/**\n* Run a workflow with one progress batch in flight. Drain progress before child\n* disposal and the terminal result; PTC and the host own cancellation and cleanup.\n* @param host - JSON callbacks owned by this workflow run.\n* @returns The script result after progress delivery; initialization failures reject.\n*/\nasync function runWorkflowGuest(host) {\n\tconst init = await host.begin({});\n\tlet queued = [];\n\tlet inFlight;\n\tlet progressError;\n\tconst flush = () => {\n\t\tif (inFlight !== void 0 || queued.length === 0) return;\n\t\tconst batch = queued;\n\t\tqueued = [];\n\t\tinFlight = host.progress(batch).then(() => {\n\t\t\tinFlight = void 0;\n\t\t\tflush();\n\t\t}, (error) => {\n\t\t\tprogressError = renderThrown(error);\n\t\t\tqueued = [];\n\t\t\tinFlight = void 0;\n\t\t});\n\t};\n\tconst send = (event) => {\n\t\tif (progressError !== void 0) return;\n\t\tqueued.push(event);\n\t\tflush();\n\t};\n\tconst drain = async () => {\n\t\twhile (inFlight !== void 0) await inFlight;\n\t};\n\tconst result = await new WorkflowExecution(init.meta, init.body, init.args, init.limits, {\n\t\tphase: (title) => {\n\t\t\tsend({\n\t\t\t\ttype: \"phase\",\n\t\t\t\ttitle\n\t\t\t});\n\t\t},\n\t\tlog: (message) => {\n\t\t\tsend({\n\t\t\t\ttype: \"log\",\n\t\t\t\tmessage\n\t\t\t});\n\t\t},\n\t\tagentStart: (info) => {\n\t\t\tsend({\n\t\t\t\ttype: \"agent-start\",\n\t\t\t\tinfo\n\t\t\t});\n\t\t},\n\t\tagentEnd: (info) => {\n\t\t\tsend({\n\t\t\t\ttype: \"agent-end\",\n\t\t\t\tinfo\n\t\t\t});\n\t\t}\n\t}, { async startAgent(request) {\n\t\tconst { callId, childId } = await host.startChild(request);\n\t\tconst result = host.childResult({ callId });\n\t\tresult.catch(() => {});\n\t\treturn {\n\t\t\tid: childId,\n\t\t\tresult,\n\t\t\tasync dispose() {\n\t\t\t\tawait drain();\n\t\t\t\tawait host.disposeChild({ callId });\n\t\t\t}\n\t\t};\n\t} }).drive();\n\tawait drain();\n\treturn progressError === void 0 ? result : {\n\t\tvalue: null,\n\t\tstopReason: \"error\",\n\t\terror: progressError,\n\t\tagentsStarted: result.agentsStarted\n\t};\n}\n//#endregion\nexport { runWorkflowGuest };\n//# sourceURL=dsh-workflow-guest.js\n"