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     更新时先运行 `pnpm run gen-cordis-catalog` 更新英文，再更新本文件并运行 `pnpm run verify-translation-pairing --write docs/cordis-api/fiber.md` 重新记录配对。 -->

# Fiber

fiber 是一个已加载的插件实例，包含其生命周期状态、经过校验的配置以及已注册的作用。`ctx.fiber` 是当前 fiber，`ctx.effect()` 会将调用委托给它。

### ctx.effect(execute, label?)

```ts cordis-catalog
/**
 * Register a cleanup-aware effect on this fiber.
 *
 * `execute` runs immediately; the disposers it produces are collected and
 * run (in reverse order) either when the returned disposer is called or
 * when the fiber unloads, whichever comes first. Calling the disposer twice
 * is a no-op. Throws `CordisError('INACTIVE_EFFECT')` if the fiber is
 * already disposed, and `TypeError` if `execute` returns an invalid shape.
 *
 * @param execute — the effect body; see {@link Effect} for accepted shapes.
 * @param label — effect label shown in `getEffects()` diagnostics.
 * @returns a disposer that tears the effect down and settles once done.
 */
effect(execute: () => SyncEffect, label?: string): Disposable<Promise<void>>
effect(execute: () => Effect, label?: string): AsyncDisposable<Promise<void>>
```

在此 fiber 上注册一个支持清理的作用。

`execute` 会立即运行；它产生的清理函数将被收集，并在调用返回的清理函数或卸载 fiber 时按相反顺序运行，以先发生者为准。重复调用清理函数不会产生任何效果。如果 fiber 已经 dispose（资源释放），则抛出 `CordisError('INACTIVE_EFFECT')`；如果结构无效，则抛出 `TypeError`，表示 `execute` 返回了不受支持的结果。

- `execute`：作用主体；可接受的结构见 `Effect`。
- `label`：在 `getEffects()` 诊断信息中显示的作用标签。

**返回**一个用于撤销该作用的清理函数，并在清理完成后结算。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L421)

### ctx.fiber

```ts cordis-catalog
/** The fiber (plugin runtime instance) that owns this context. */
fiber: Fiber
```

拥有此上下文的 fiber（插件运行时实例）。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L12)

## Fiber 类

单次插件应用的运行时实例。

fiber 会跟踪 `ctx.plugin()` 返回的插件上下文所对应的依赖状态、原始配置与有效配置、生命周期作用和清理操作。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L184)

### fiber.uid

```ts cordis-catalog
/** Unique id within the registry; 0 for the root fiber, `null` once disposed. */
public uid: number | null
```

在注册表中的唯一 id；根 fiber 的 id 为 0，dispose 后为 `null`。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L186)

### fiber.ctx

```ts cordis-catalog
/** The context this fiber's plugin runs in (extends the parent context). */
public readonly ctx: Context
```

此 fiber 的插件运行所在的上下文（扩展自父上下文）。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L188)

### fiber.config

```ts cordis-catalog
/** Raw plugin input retained for the next activation. */
public config: any
```

为下次激活保留的原始插件输入。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L190)

### fiber.state

```ts cordis-catalog
/** Current lifecycle state; transitions emit `internal/status`. */
public state
```

当前生命周期状态；状态转换会发出 `internal/status`。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L192)

### fiber.dispose

```ts cordis-catalog
/** Dispose this fiber: unload the plugin, then settle once cleanup finished. */
public readonly dispose: () => Promise<void>
```

dispose 此 fiber：卸载插件，并在清理完成后结算。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L194)

### fiber.committed

```ts cordis-catalog
/** Required implementations retained through dependent teardown. */
public committed: Readonly<Dict<Impl>> | undefined
```

在依赖方清理完成前保留的所需服务实现。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L196)

### fiber.provisions

```ts cordis-catalog
/** Service implementations owned by this fiber, including isolated provisions. */
public readonly provisions: Set<Impl>
```

此 fiber 拥有的服务实现，包括隔离域中的服务。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L198)

### fiber.inertia

```ts cordis-catalog
/** The in-flight load/unload transition, if one is currently running. */
public inertia: Promise<void> | undefined
```

当前正在进行的加载或卸载转换；如果没有此类转换，则为 undefined。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L200)

### fiber.name

```ts cordis-catalog
/** The plugin's display name, inherited from the nearest named ancestor, else `'root'`. */
get name()
```

插件的显示名称，继承自最近的具名祖先；如果不存在，则为 `'root'`。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L342)

### fiber.assertActive()

```ts cordis-catalog
/**
 * Throw if the fiber has already been disposed.
 *
 * @returns nothing when the fiber is still active.
 * @throws {CordisError} `INACTIVE_EFFECT` when the fiber's uid has been cleared.
 */
assertActive()
```

如果 fiber 已经 dispose，则抛出异常。

**返回**：fiber 仍处于活动状态时不返回任何内容。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L357)

### fiber.effect(execute, label?)

```ts cordis-catalog
/**
 * Register a cleanup-aware effect on this fiber.
 *
 * `execute` runs immediately; the disposers it produces are collected and
 * run (in reverse order) either when the returned disposer is called or
 * when the fiber unloads, whichever comes first. Calling the disposer twice
 * is a no-op. Throws `CordisError('INACTIVE_EFFECT')` if the fiber is
 * already disposed, and `TypeError` if `execute` returns an invalid shape.
 *
 * @param execute — the effect body; see {@link Effect} for accepted shapes.
 * @param label — effect label shown in `getEffects()` diagnostics.
 * @returns a disposer that tears the effect down and settles once done.
 */
effect(execute: () => SyncEffect, label?: string): Disposable<Promise<void>>
effect(execute: () => Effect, label?: string): AsyncDisposable<Promise<void>>
```

在此 fiber 上注册一个支持清理的作用。

`execute` 会立即运行；它产生的清理函数将被收集，并在调用返回的清理函数或卸载 fiber 时按相反顺序运行，以先发生者为准。重复调用清理函数不会产生任何效果。如果 fiber 已经 dispose，则抛出 `CordisError('INACTIVE_EFFECT')`；如果结构无效，则抛出 `TypeError`，表示 `execute` 返回了不受支持的结果。

- `execute`：作用主体；可接受的结构见 `Effect`。
- `label`：在 `getEffects()` 诊断信息中显示的作用标签。

**返回**一个用于撤销该作用的清理函数，并在清理完成后结算。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L421)

### fiber.getEffects()

```ts cordis-catalog
/**
 * Return metadata for currently registered effects.
 *
 * @returns one {@link EffectMeta} tree per labeled live effect.
 */
getEffects()
```

返回当前已注册作用的元数据。

**返回**：每个带标签的活动作用对应一棵 `EffectMeta` 树。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L574)

### fiber.rawConfig

```ts cordis-catalog
/** Raw input retained for the next activation, without evaluating expressions or validating it. */
get rawConfig(): unknown
```


保留供下次激活使用的原始输入，不执行表达式求值或验证。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L649)

### fiber.effectiveConfig

```ts cordis-catalog
/**
 * The object passed to plugin activation or the latest successful update that retained the instance.
 * Candidate resolution does not publish it; volatile updates retain its references.
 * Undefined before activation and readable after unload; callers requiring a live instance check `state`.
 */
get effectiveConfig(): unknown
```

传给插件激活过程或最近一次成功保留实例的更新的对象。候选配置求值不发布结果；volatile 更新保留其中的引用。激活前为 undefined，卸载后仍可读取；需要运行中实例的调用方还应检查 `state`。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L664)

### fiber.resolveConfig(config)

```ts cordis-catalog
/**
 * Evaluate and validate a candidate using this fiber's `internal/config` hooks and runtime schema.
 * Does not publish the result, replace raw input, or commit running volatile references.
 * Required injections must be available when a hook uses them.
 * @param config Raw candidate input.
 * @returns The candidate's resolved config, retaining the schema's result identity.
 * @throws {ValidationError} when the runtime schema rejects the candidate; hook errors propagate.
 */
resolveConfig(config: unknown): unknown
```


通过此 fiber 的 `internal/config` 钩子和运行时 schema 对候选值求值并验证。此操作不发布结果、不替换原始输入，也不提交运行中的 volatile 引用。钩子访问的注入服务必须已经可用。

- `config`：原始候选输入。

**返回**候选配置的解析结果，保留 schema 返回对象的身份。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L676)

### fiber.await()

```ts cordis-catalog
/**
 * Wait for current lifecycle work and rethrow startup errors.
 *
 * @returns this fiber, once it has settled into a stable state.
 * @throws the config-validation or plugin-startup error, if any.
 */
async await()
```

等待当前生命周期工作完成，并重新抛出启动错误。

**返回**：进入稳定状态后的此 fiber。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L754)

### fiber.restart()

```ts cordis-catalog
/**
 * Dispose and immediately reload this plugin with its current config.
 *
 * @returns a promise resolving once the reload settled.
 * @throws {CordisError} `INACTIVE_EFFECT` when the fiber is already disposed.
 */
async restart()
```

dispose 此插件，并立即使用其当前配置重新加载。

**返回**一个在重新加载完成后兑现的 promise。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L768)

### fiber.update(config, noSave?)

```ts cordis-catalog
/**
 * Resolve a candidate, retain its raw config and apply it through the update waterfall.
 * @param config Raw config; pending fibers defer resolution until activation.
 * @param noSave Suppress the persistence notification when true.
 * @returns The awaited update/restart result, or undefined when a synchronous listener handles it.
 * @throws {ValidationError} when an active fiber's candidate is invalid.
 */
update(config: any, noSave = false): Awaitable<void>
```

求值候选配置，保留原始输入，并通过更新 waterfall 应用结果。

- `config` — 原始配置；pending fiber 将求值推迟到激活时。
- `noSave` — 为 true 时不发出持久化通知。

**返回** 可等待的更新或重启结果；同步监听器处理更新时为 undefined。

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L783)

## Effect

`ctx.effect()` 和插件启动所接受的作用主体结果。

可以是单个清理函数、兑现为清理函数的 promise，或生成多个清理函数的（可能为异步的）可迭代对象。生成器作用会在每个清理函数产生时将其注册。

```ts cordis-catalog
/**
 * Effect body result accepted by `ctx.effect()` and plugin startup.
 *
 * Either a single disposer, a promise of one, or a (possibly async) iterable
 * yielding several — generator effects register each yielded disposer as it
 * is produced.
 */
type Effect<T = any> =
  | SyncEffect<T>
  | AsyncEffect<T>
```

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L83)

## Disposable

作用返回的函数，用于在资源释放期间释放资源。

拥有该函数的 fiber 卸载时，清理函数会按注册的相反顺序运行；清理函数可以是异步的，此时卸载过程会等待其完成。

```ts cordis-catalog
/**
 * Function returned by an effect to release resources during disposal.
 *
 * Disposers run in reverse registration order when the owning fiber unloads;
 * they may be async, in which case unloading awaits them.
 */
type Disposable<T = any> = () => T
```

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L74)

## EffectMeta

用于在诊断信息中公开嵌套作用标签的树节点。

```ts cordis-catalog
/** Tree node used to expose nested effect labels for diagnostics. */
interface EffectMeta {
  /** Human-readable effect label, e.g. `ctx.on("event")` or `ctx.provide("name")`. */
  label: string
  /** Metadata of nested effects registered while this effect ran. */
  children: EffectMeta[]
}
```

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L96)

## CordisError

具有稳定机器可读错误码的框架错误。

```ts cordis-catalog
/** Framework error with a stable machine-readable code. */
class CordisError extends Error {
  /**
   * @param code — the stable error code; also the default message.
   * @param message — optional human-readable override.
   */
  constructor(public code: CordisError.Code, message?: string)
}

/** Cordis error code definitions. */
namespace CordisError {
  export type Code = keyof typeof Code

  export const Code = {
    INACTIVE_EFFECT: 'cannot create effect on inactive context',
  } as const
}
```

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L157)

## ValidationError

插件配置未通过 standard-schema 校验时抛出的错误。

```ts cordis-catalog
/** Error raised when plugin configuration fails standard-schema validation. */
class ValidationError extends TypeError {
  name = 'ValidationError'

  /**
   * Build the aggregated message from schema issues.
   *
   * @param issues — the standard-schema issues, one message line each.
   */
  constructor(issues: readonly StandardSchemaV1.Issue[])
}
```

[源码](https://github.com/deepseek-ai/deepseek-harness/blob/master/vendor/cordis/src/fiber.ts#L19)