The dsh-tools half of the Code Mode RFC (its fourth, final change): the registry gains its first config — mode: native | code | both — and OWNS how its tools reach the model. 'code' contributes exactly one wire tool, run_code, plus a lazy tools:sdk prompt section declaring every other tool as a generated TypeScript API (jsonSchemaToTs: total over the defineTool subset, unknown degradation, lexicographic byte-identical rendering); 'both' ships both representations; 'native' is byte-for-byte the old behavior. Non-native modes fail every assembly loudly without a typescript-language ctx.codeRuntime. run_code's dispatch bridge: JSON-normalizes each binding argument before dispatch (what dispatches is what the tool/code-dispatch event logs — the append can never fail on payload shape; BigInt/circulars reject that one call), serializes all program tool calls through a per-run queue (even Promise.all — no concurrency-safety metadata yet), routes every sub-call through tools/pre-execute → tools/post-execute (a deny rejects the program-side promise), drops sub-call additionalContext (no safe outlet mid-run; pinned), owns a run-scoped abort that follows the outer signal in and fires on settlement (in-flight sub-dispatch aborted, queued abandoned, queue drained before returning), and converts a failed run into CodeRunFailedError → a structured isError carrying kind + captured logs. tool/code-dispatch joins SessionEventMap by declaration merging (log-only; deriveMessages ignores it). The composed surface: the tools config forwards through agent-core and both app packages; examples/code-agent + demo:code run the worker runtime under mode code (keyless boot smoke + a with-key e2e proving the collapsed [run_code] header, the dispatch events, and the file the program wrote); two new snapshot scenarios (code-mode-turn, both-mode-turn) record the SDK section, collapsed header, dispatch events, and result card — each its own header-pinning class (the harness gains per-scenario config overlays and per-class pins). Catalogs, graphs, cookbook, hooks-bridge notes, and the RFC (moved to implemented/, restructured to decision-era headings) updated in the same change.
@deepseek-ai/dsh-stdio-agent
The terminal stdio chat app: a Cordis app plugin that composes the providerless agent spine (@deepseek-ai/dsh-agent-core) with the front-door cluster a terminal chat needs, and a bin that boots a leaf cordis.yml.
It is the readline counterpart to @deepseek-ai/dsh-acp-agent: both consume the same spine, but each bakes in the OPPOSITE front-door cluster.
What it bakes in
A terminal chat always wants the same cluster, so the package owns it rather than trusting each leaf to re-wire it:
| Plugin | Why it is here |
|---|---|
@cordisjs/plugin-logger-console |
the console logger — stdout is just the terminal here, so logging to it is correct (the ACP app must NOT have this) |
@deepseek-ai/dsh-agent-core |
the spine, pre-creating a main agent from this app's model and carrying its persona |
@deepseek-ai/dsh-session-persistence-jsonl |
durable JSONL session log under persistenceRoot |
stdio-chat (in-package module) |
the readline UI, bound to the main agent |
@cordisjs/plugin-hmr (the dev/demo edit-reload loop) is deliberately a leaf entry, NOT baked in here: it is a Loader-only, subprocess-only dev plugin — its constructor throws without node --expose-internals + a live loader, and the in-process test tier cannot even import it (so a package whose apply statically pulled it in could never carry the per-file coverage gate). Unlike the console logger, a stray hmr is not a stdout-purity footgun, so leaving it at the leaf costs no safety. The demo:echo / demo:repl leaves load it and pass --expose-internals.
The leaf cordis.yml supplies only the swappable backends — an LLM adapter (llm-deepseek for the real model, or the mock mock-llm for a demo) and a bash executor (bash-local) — hmr, plus this app's Config. The whole plugin tree a run loads is therefore: this app's cluster, the spine inside agent-core, hmr, and the two leaf backends.
Config
| Key | Default | Routed to |
|---|---|---|
model |
(required) | the pre-created main agent's model |
persona |
— | the deployment persona template (may reference {{model}}), routed to dsh-system-prompt |
toolOrder |
— | explicit model-facing tool order (a name list with one '<unlisted-tools>' rest entry; absent — lexicographic; an unregistered name fails each turn at prompt assembly), routed to dsh-system-prompt |
persistenceRoot |
./.sessions |
the JSONL backend's root directory |
welcome |
ready. |
the stdin-chat banner |
resumeSessionId |
— | resume a persisted session id instead of starting fresh (sourced from an env var in the leaf) |
The bin
dsh-stdio-agent [path-to-cordis.yml] (default ./cordis.yml) loads a gitignored .env from the cwd (DEEPSEEK_API_KEY / DEEPSEEK_BASE_URL), then drives the cordis Loader against the config and awaits the whole plugin tree before returning. Run it under node --expose-internals: the cordis Loader resolves the config's bare plugin specifiers (@deepseek-ai/dsh-*, npm packages) through its internal module loader, which is only active under that flag. The demo:echo / demo:repl scripts invoke it that way.
Example leaf cordis.yml
# A REPL agent demo: hmr + the DeepSeek adapter + local bash, then this app.
- id: hmr
name: '@cordisjs/plugin-hmr'
config:
root: ['.']
- id: llm-deepseek
name: '@deepseek-ai/dsh-llm-deepseek'
config:
apiKey: !!js process.env.DEEPSEEK_API_KEY
models: [deepseek-v4-flash]
- id: bash
name: '@deepseek-ai/dsh-bash-local'
config:
timeoutMs: 60000
- id: stdio-agent
name: '@deepseek-ai/dsh-stdio-agent'
config:
model: deepseek-v4-flash
persona: 'You are a coding assistant powered by the {{model}} model.'
Swap llm-deepseek for a mock-llm leaf plugin and you have the echo demo — "swap the backend, keep the app".