系统提示词组装

组装上下文

AssembleContext 标识一次组装所解析的作用域层，并可携带该请求的显式控制信号。它可合并扩展：dsh-agent 添加可选字段 agent，用于携带当前的 agent（智能体）实例；assembleContextFor(agent, signal) 则一起设置这些显式字段。裸组装既没有作用域，也没有信号。

/** Merge-extensible context for one prompt assembly. */
interface AssembleContext {
  /**
   * Scope whose providers and waterfall listeners participate. When absent,
   * only global providers and subject-less listeners participate.
   */
  scope?: ScopeKey
  /** Explicit control signal for the turn that requested this assembly, when any. */
  signal?: AbortSignal
}

工具提供方结果

ToolProviderResult.schemas 是当前组装中对模型可见的工具 schema 集合。knownNames 是提供方在限制前的名称全集，用于区分「配置名拼写错误」与「已知工具在此作用域中被有意隐藏」。

/** Tool schemas visible in one assembly and their pre-restriction name set. */
interface ToolProviderResult {
  /** The schemas this provider contributes to THIS assembly. */
  readonly schemas: readonly ToolSchema[]
  /** The pre-restriction name universe for config validation (defaults to `schemas`' names). */
  readonly knownNames?: readonly string[]
}

提示词段落

PromptSection 是一份只读的同进程注册约定。其文本可以是静态的，也可以从当前组装上下文动态解析。协作式组装完成后，一个有效的 complete 段会成为唯一的提示词段落。

/** One contributed section of the system prompt (registry input). */
interface PromptSection {
  /** Unique name — a duplicate registration throws (see {@link SystemPrompt.section}). */
  readonly name: string
  /**
   * Sections are concatenated in ascending order. Convention: `-100` is the
   * harness identity, `0` the deployment persona, tool guidance uses 100–199;
   * other negative orders also render before the persona.
   */
  readonly order: number
  /**
   * Static text or a provider evaluated at each assembly with that assembly's
   * {@link AssembleContext}. The text may reference `{{variable}}`s — they are
   * interpolated later, by {@link renderPrompt}.
   */
  readonly text: string | ((context: AssembleContext) => string)
  /**
   * Treat this contribution as the complete system prompt. Assembly still
   * runs the cooperative waterfall so tools, contexts, and variables can be
   * resolved, then restores this exact section as the sole prompt section.
   * More than one effective complete section makes assembly fail.
   */
  readonly complete?: boolean
}

动态提示词上下文

PromptContext 是与 PromptSection 对应的缓存安全结构。组装会解析这些贡献并排序；agent loop（智能体循环）仅在完整当前快照发生变化或被压缩（compaction）移除时，才会将其记录在保留的模型历史之后。

/** Dynamic model context materialized as a durable user-role snapshot. */
interface PromptContext {
  /** Unique name — a duplicate registration throws (see {@link SystemPrompt.context}). */
  readonly name: string
  /** Contexts are joined in ascending order. */
  readonly order: number
  /** Static text or a provider evaluated for each assembly. Empty text contributes nothing. */
  readonly text: string | ((context: AssembleContext) => string)
}

Cordis API

Generated from source by scripts/gen-cordis-catalog.ts (verified fresh by pnpm run verify-cordis-catalog in doc-sync; regenerate with pnpm run gen-cordis-catalog) — this section is byte-identical in both language sides of the page. Signature blocks use a ts cordis-catalog fence and keep the original source JSDoc; dispatch modes are defined in the primer, and the framework-inherited ctx API lives in cordis-api/inherited.md.

ctx.systemPrompt — SystemPrompt

Registry service for the prompt inputs assembled before each model step.

/**
 * Register an ordered prompt section in the calling context's scope. A scoped
 * section shadows a global section with the same name; duplicates within one
 * layer and non-finite orders throw. Registration and disposal emit
 * `system-prompt/change`.
 * @param section - the section to register.
 * @returns the exact Cordis effect disposer.
 */
section(section: PromptSection): () => void

/**
 * Register ordered dynamic context in the calling context's scope. Scoped
 * entries shadow global entries with the same name.
 * @param context - the context contribution to register.
 * @returns the exact Cordis effect disposer.
 */
context(context: PromptContext): () => void

/**
 * Suppress every dynamic runtime-context contribution in the calling
 * context's scope without changing the services that own or enforce those
 * facts. Multiple suppressors remain independently disposable.
 * @returns the exact Cordis effect disposer.
 */
suppressRuntimeContext(): () => void

/**
 * Register a tool-schema provider in the calling context's scope. Global and
 * matching scoped providers both contribute; returning the reserved
 * {@link TOOL_ORDER_REST} name makes assembly fail.
 * @param provider - evaluated for each assembly with its context.
 * @returns the exact Cordis effect disposer.
 */
tools(provider: (context: AssembleContext) => ToolProviderResult): () => void

/**
 * Register a prompt variable in the calling context's scope. Scoped values
 * shadow globals; invalid or duplicate names throw. A provider may return
 * `undefined`, but rendering a section that references that value then fails.
 * @param name - the `[a-z][a-z0-9_]*` reference name.
 * @param provider - evaluated for each assembly.
 * @returns the exact Cordis effect disposer.
 */
variable(name: string, provider: (context: AssembleContext) => string | undefined): () => void

/**
 * Assemble global and scoped providers, detach tool parameters, apply
 * canonical ordering, then run the assembly waterfall. Scoped sections and
 * variables shadow globals. The returned waterfall value is authoritative
 * except that an effective complete section is restored afterwards as the
 * sole prompt section.
 * @param context - the optional scope and plugin-defined assembly fields.
 * @returns the post-waterfall assembly with any complete prompt enforced.
 */
async assemble(context: AssembleContext = {}): Promise<PromptAssembly>

Source: packages/core/system-prompt/src/index.ts:338

system-prompt/* events

system-prompt/assemble — waterfall

Expert waterfall over the assembled sections, contexts, tools, and variables. Scope-filtered dispatch (@deepseek-ai/dsh-scope): scoped listeners receive only that scope’s assemblies. The returned value is authoritative. A supplied signal controls only this explicit assembly request and must not be retained to control later turns. A registered complete section is restored after this waterfall, so listeners cannot add to or replace that scope’s system prompt.

/**
 * Expert waterfall over the assembled sections, contexts, tools, and variables.
 * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): scoped listeners
 * receive only that scope's assemblies. The returned value is authoritative.
 * A supplied signal controls only this explicit assembly request and must not
 * be retained to control later turns. A registered complete section is
 * restored after this waterfall, so listeners cannot add to or replace
 * that scope's system prompt.
 * @param assembly - the mutable assembly built from registered providers.
 * @param context - the caller's per-assembly context.
 * @mode waterfall
 */
'system-prompt/assemble'(this: Scoped<SystemPrompt>, assembly: PromptAssembly, context: AssembleContext, next: () => Promise<PromptAssembly>): Promise<PromptAssembly>

Types: Scoped

Source: packages/core/system-prompt/src/index.ts:31

system-prompt/change — emit

Emitted when any prompt provider changes. This registry notification is unfiltered because a global change affects every scope.

/**
 * Emitted when any prompt provider changes. This registry notification is
 * unfiltered because a global change affects every scope.
 * @mode emit
 */
'system-prompt/change'(): void

Source: packages/core/system-prompt/src/index.ts:37