Tianyi Cui
7fa113be0e
# Conflicts: # docs/adr/README.md # docs/rfc/009-session-persistence-and-resumability.md # docs/rfc/README.md # docs/rfc/implemented/2026-06-11-doc-sync-enforcement.md # docs/rfc/proposed/2026-06-14-acp-agent-client-protocol.md # examples/acp-agent/tests/acp.e2e.ts # packages/acp/README.md # packages/acp/src/index.ts # packages/acp/tests/stream-update.spec.ts # packages/agent-loop/src/loop.ts # packages/tools/src/index.ts
53 lines
4.1 KiB
Markdown
53 lines
4.1 KiB
Markdown
# Packages
|
|
|
|
Harness packages, all under the `@deepseek-ai/dsh-*` scope. Each package is a Cordis plugin (microkernel-style): it exports either a default `Service` subclass or a functional plugin that gets registered via `ctx.plugin()`, declares its ctx key/events where applicable through declaration merging, and exposes extension points through `ctx.effect()`, `ctx.on()`, and `ctx.waterfall()`.
|
|
|
|
## Dependency graph
|
|
|
|
```
|
|
dsh-llm (no harness deps — pure vocabulary)
|
|
dsh-bash (no harness deps — abstract executor seam)
|
|
dsh-session ← dsh-llm
|
|
dsh-system-prompt ← dsh-llm
|
|
dsh-agent ← dsh-llm, dsh-session
|
|
dsh-tools ← dsh-llm, dsh-system-prompt, dsh-agent
|
|
dsh-bash-local ← dsh-bash (BashExecutor impl)
|
|
dsh-tool-bash ← dsh-bash, dsh-tools (bash tool schemas)
|
|
dsh-llm-deepseek ← dsh-llm (DeepSeek adapter)
|
|
dsh-llm-pi-ai ← dsh-llm (pi-ai-backed adapter)
|
|
dsh-agent-loop ← dsh-llm, dsh-session, dsh-system-prompt, dsh-tools, dsh-agent
|
|
dsh-invariants ← dsh-llm, dsh-session, dsh-agent (dev-mode contract checks)
|
|
dsh-acp ← dsh-agent, dsh-llm, dsh-session, dsh-session-persistence (ACP JSON-RPC bridge)
|
|
```
|
|
|
|
The rule: plugins depend on interfaces, never on the concrete loop. `dsh-agent-loop` is swappable — UI/hook/tool plugins keep working against the `dsh-agent` vocabulary if the loop is replaced. A swappable capability splits into interface / implementation / consumer packages (the bash trio is the template — see [capability seams](../docs/rfc/implemented/2026-06-13-capability-seams.md)).
|
|
|
|
## What goes where
|
|
|
|
| Package | Role | ctx key |
|
|
|---|---|---|
|
|
| `llm/` | Abstract LLM service + content-block vocabulary + chunk assembler | `ctx.llm` |
|
|
| `session/` | Event-sourced session log + in-memory store | `ctx.sessions` |
|
|
| `system-prompt/` | Prompt-section + tool-schema assembly registry | `ctx.systemPrompt` |
|
|
| `tools/` | Tool registry + `tools/execute` waterfall | `ctx.tools` |
|
|
| `agent/` | Agent interface, registry, `agent/*` event vocabulary | `ctx.agents` |
|
|
| `agent-loop/` | THE concrete loop plugin: `LoopAgent` + the loop driver | `ctx.agentLoop` |
|
|
| `bash/` | Abstract bash executor seam (interface + vocabulary) | `ctx.bash` |
|
|
| `bash-local/` | Local-subprocess `BashExecutor` implementation | (registers `ctx.bash`) |
|
|
| `tool-bash/` | Model-facing `bash`/`bash_output`/`bash_kill` tool schemas | (registers on `ctx.tools`) |
|
|
| `llm-deepseek/` | DeepSeek API adapter (hand-rolled fetch/SSE) | (registers on `ctx.llm`) |
|
|
| `llm-pi-ai/` | DeepSeek adapter via `@earendil-works/pi-ai` (design twin) | (registers on `ctx.llm`) |
|
|
| `invariants/` | Dev-mode event-contract invariants + session-log freeze | (listens on `session/*`, `agent/*`) |
|
|
| `acp/` | Agent Client Protocol bridge: serves the agent to an ACP editor over JSON-RPC stdio | (drives `ctx.agents`/`ctx.sessions`) |
|
|
|
|
Each package has its own `README.md` with purpose, service API, events, extension points, and deliberate non-goals (TODOs).
|
|
|
|
## Conventions (applied across all harness packages)
|
|
|
|
- **Registrations are effects**: every contribution (adapter, tool, section, agent, event listener) goes through `ctx.effect()` / `ctx.on()`, so disposal and HMR clean up automatically. Every `register()` returns the disposer.
|
|
- **Declaration merging for events and ctx**: services declare their events in `declare module 'cordis' { interface Events { ... } }` and their ctx key in `interface Context`.
|
|
- **Waterfall semantics**: `ctx.waterfall` listeners receive `(...args, next)` and MUST call `next()` to delegate; returning without it short-circuits (the veto mechanism).
|
|
- **Extensible unions**: `ContentBlockMap`, `MessageSourceMap`, `FinishReasonMap`, `TurnTriggerMap`, `TurnEndReasonMap`, and `SessionEventMap` use the merge-extensible-map pattern so plugins can add variants via declaration merging.
|
|
- **ESM everywhere**; imports use package names across package boundaries, `.ts` extensions within a package.
|
|
- **Tests**: vitest, colocated under `packages/<name>/tests/*.spec.ts`. Every registry needs an HMR-safety test. Err on the side of more tests.
|