Files
deepseek-harness/packages/bundle/headless/README.md
T
Turtle 82728808d4 feat(bundle): the web and one-shot apps own their own flags
dsh-web-app owns --host/--port/--dev/--workspace-root/--trusted-host and
its --help in a web-startup row; the rows it configures wait for the
webStartup service, and the client-plugin HMR receiver now ships disabled
so --dev is a row toggle rather than a runtime insert (the Loader cannot
resolve a row inserted from inside a mounting plugin).

dsh-headless owns the task positional and rejects a missing task as its own
usage error. Its runner ships disabled, not merely waiting: the schema
requires the task, and a row's config is validated when its fiber is
created, before the startup row can supply one. A composition has exactly
one command-line owner, so the patch disables the web startup row and this
one provides webStartup too, leaving the web rows on their composed
one-shot values.

The keyless web scaffold provides the same three values with no arguments,
which is what an embedding host with no command line does.
2026-08-10 23:45:04 +08:00

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Markdown

# `@deepseek-ai/dsh-headless`
English | [中文](README.zh.md)
The dsh one-shot bundle. [`cordis.patch.yml`](cordis.patch.yml) rides directly over [`dsh-base`](../base/README.md): it supplies the coding persona and tool mode, disables HMR, mounts Code Mode's worker as a core execution capability, and inserts this package's `headless-runner` plugin (config `{task}`, shipped disabled until the startup row supplies the task). It mounts no Host, HTTP server, Web runtime, or browser plugin.
After the Loader settles, the runner reads the shared [`ctx.agentDefaultModel`](../../core/agent-default-model/README.md), creates one fresh persisted Agent through `ctx.agents`, submits the task as an ordinary user message, and waits for quiescence. It flushes the Session before folding the owned durable event interval, writes the last non-empty assistant text to stdout, and requests exit through the launcher-provided `ctx.headlessIo` host hook (final `turn/end` completed → 0, otherwise 1). A terminal `error` reason also writes its code and message to stderr; successful runs keep stderr empty. The process opens no listening port. The task text is this app's command line: the `headless-startup` row ([`src/startup.ts`](src/startup.ts)) reads it as the positional argument of `dsh --profile headless "task"` from `ctx.cmdlineArgs` ([`dsh-cmdline`](../../boot/cmdline/README.md)), prints the app's `--help`, and rejects an invocation with no task instead of letting the runner's schema fail.
## Model Experience
None, as the runner submits the task as an ordinary user message; prompts and tools belong to the base and headless bundle rows.
#### KV Cache effect
None; the runner adds nothing to the request prefix.
## Known Limitations and Deferred Work
- **One submitted task only** — the runner has no interactive follow-up surface; it waits through any work the Agent completes before returning to idle and prints the last non-empty assistant message in that interval.
- **`ctx.headlessIo` is launcher-owned** — booting the headless profile outside the `dsh` launcher fails loud at activation until the host provides the hook.