Files
deepseek-harness/packages/core/agent-core/src/index.ts
Tianyi Cui 3f83a4ee96 review: the persona becomes the system-prompt plugin's deployment config
Review round 2 (tianyicui inline comments):

- dsh-system-prompt itself registers the harness:identity (-100) and
  deployment:persona (0) sections — they must survive a swapped loop
  plugin, so they leave dsh-agent-loop; the persona text is the plugin's
  own validated 'persona' config. The model/cwd variables STAY on the
  loop: runtime facts of the agents it drives.
- AgentOptions.systemPrompt is deleted with all its forwarding plumbing:
  the app configs' systemPrompt keys become 'persona' routed through
  dsh-agent-core (schema = z.intersect of the owners'), the ACP bridge
  and tool-subagent stop carrying persona configuration, and subagent
  children now render the deployment persona like every other agent.
- Example personas drop transport/interface trivia (ACP, CLI) — facts
  irrelevant to the model.
- Root CONTEXT.md removed (not idiomatic); its persona definition was
  wrong under the new ownership anyway.
- Docs, READMEs, the prompt-variables RFC, and generated catalogs
  updated; new loop test pins the assemble-waterfall escape valve
  (an emptied assembly sends NO system field).
2026-07-05 23:23:46 +08:00

102 lines
5.0 KiB
TypeScript

/**
* The providerless, executor-less, UI-less agent spine as ONE bundle plugin.
*
* Loads the fixed set of services every harness agent needs — `timer`, the LLM
* service, the session store, system-prompt assembly, the tool registry, the
* agent registry, the dev-mode invariants, the model-facing `bash` tool
* schemas, and the concrete `agent-loop` — and forwards the loop's `agents`
* list as its OWN config (default `[]`), so each app supplies its own
* pre-created agents.
*
* It is deliberately NOT the whole app: the swappable choices stay OUTSIDE the
* bundle, picked by whatever loads it.
* - the LLM ADAPTER (`llm-deepseek`/`llm-pi-ai`/`llm-replay`) — the bundle
* ships the abstract `llm` service + `tool-bash` consumer schema; the leaf
* registers a concrete adapter on `ctx.llm`.
* - the bash EXECUTOR (`bash-local` or a sandboxed impl) — the bundle ships
* the `bash` tool consumer; the leaf provides `ctx.bash`.
* - the PRESENTATION (stdio UI / ACP bridge / a logger) and the per-app infra
* (a console logger, `hmr`) — these are the coupled "front-door cluster" the
* app packages ({@link @deepseek-ai/dsh-stdio-agent},
* {@link @deepseek-ai/dsh-acp-agent}) bake in, NOT the shared spine.
*
* This is the interface/implementation/consumer seam at the composition level:
* the bundle owns the shared spine, the leaf owns the backends, the app package
* owns the front door. `timer` is in the spine (common to every front door — it
* writes nothing to stdout); the console logger is NOT (it writes to stdout,
* which the ACP bridge reserves for its JSON-RPC channel).
*
* Services register in the root store keyed by their isolate symbol, so a child
* loaded here via `ctx.plugin(...)` is visible to the bundle's SIBLINGS (the
* leaf's adapter and executor) exactly as a nested `plugin-include` subtree's
* services were before this bundle existed — cordis gates every read on
* `inject`, never on load order, so the fixed child set resolves regardless of
* which entry loads first.
*
* Plugin export shape: named `name`/`Config`/`apply`, NO default export — the
* cordis Loader's `unwrapExports` does `exports.default ?? exports`, so a stray
* default would collapse the module to the bare `apply` function and drop the
* `Config` schema (see docs/postmortem/0001). The keyless Loader-path smokes in
* the app packages guard this end-to-end.
*
* @module @deepseek-ai/dsh-agent-core
*/
import type { Context } from 'cordis'
import Timer from '@cordisjs/plugin-timer'
import z from 'schemastery'
import LlmService from '@deepseek-ai/dsh-llm'
import SessionStore from '@deepseek-ai/dsh-session'
import SystemPrompt, { type Config as SystemPromptConfig } from '@deepseek-ai/dsh-system-prompt'
import ToolRegistry from '@deepseek-ai/dsh-tools'
import AgentRegistry from '@deepseek-ai/dsh-agent'
import * as invariants from '@deepseek-ai/dsh-invariants'
import * as toolBash from '@deepseek-ai/dsh-tool-bash'
import AgentLoop, { type Config as AgentLoopConfig } from '@deepseek-ai/dsh-agent-loop'
export const name = 'agent-core'
/**
* Bundle config: each field forwarded verbatim to the child that owns it —
* `agents` to the agent loop (an app that pre-creates no agents, like the ACP
* bridge, simply omits it), `persona` to the system-prompt plugin (the
* deployment's persona section). Both are optional INPUT here because each
* owner's schema supplies the default (`[]` / `''`); the schema is the
* INTERSECTION of the owners' own schemas, so validation and defaulting can
* never drift from them.
*/
export interface Config {
/** The agent-loop `agents` list (see dsh-agent-loop's `Config`). */
agents?: AgentLoopConfig['agents']
/** The deployment persona (see dsh-system-prompt's `Config`). */
persona?: SystemPromptConfig['persona']
}
/** Intersect the owners' schemas so validation + defaulting stay identical. */
export const Config = z.intersect([AgentLoop.Config, SystemPrompt.Config]) as unknown as z<Config>
/**
* Load the spine. Each `ctx.plugin(...)` mounts one child of the bundle fiber;
* `agent-loop` receives the forwarded `agents` list and `system-prompt` the
* forwarded `persona`. Load order is irrelevant (cordis pends each fiber on
* its `inject` until the services it needs exist), but the listing mirrors the
* dependency layering for readability: the LLM vocabulary and core registries
* first, then the dev tripwire and the bash tool consumer, then the loop that
* drives them.
*/
export function apply(ctx: Context, config: Config): void {
ctx.plugin(Timer)
ctx.plugin(LlmService)
ctx.plugin(SessionStore)
// The forwarded fields are validated + defaulted by this bundle's intersected
// schema before apply runs, so the ?? fallbacks only narrow the
// optional-input TYPES — they mirror the owners' schema defaults, never
// introduce different ones.
ctx.plugin(SystemPrompt, { persona: config.persona ?? '' })
ctx.plugin(ToolRegistry)
ctx.plugin(AgentRegistry)
ctx.plugin(invariants)
ctx.plugin(toolBash)
ctx.plugin(AgentLoop, { agents: config.agents ?? [] })
}