deepseek-harness/packages/README.md

Packages

Packages use the @deepseek-ai/dsh-* scope. Each is a Cordis Service subclass or function plugin; contributions use ctx.effect(), ctx.on(), or ctx.waterfall(). Authoring rules: package and root.

Hierarchy

Packages live at packages/<group>/<pkg>/; groups are containers, while names remain @deepseek-ai/dsh-<pkg>. Each group README is the canonical package/ctx-key map.

Group	Role	Release expectation
core/	Product API spine, including agent execution and the concrete loop	Product — stable surface
llm/	LLM capability family: the abstract service + provider adapters	Product — stable surface
bash/	Bash capability family: the executor seam, a local impl, and the model-facing tool	Product — stable surface
code-runtime/	Code-execution capability family: the abstract runtime seam for model-written programs + a worker-thread backend	Product — stable surface
sandbox/	Process-confinement seam; bwrap/Landlock/Seatbelt backends	Product — stable surface
fs/	Filesystem capability family: the abstract seam, a local impl, the model-facing file tools, and the bash-backed discovery tools	Product — stable surface
skill/	Skill capability family: the provider registry, local provider, and model-facing catalog/loader	Product — stable surface
compact/	Compaction capability family: the abstract seam + a basic backend (tool deferred)	Product — stable surface
context/	Model-visible request context, including workspace instructions and time context	Product — stable surface
subagent/	Subagent capability family: the provider-registry seam and the model-facing delegation tool	Product — stable surface
tasks/	Generic background-task runtime and model-facing task_* control tools	Product — stable surface
workflow/	Workflow capability family: the script-engine seam, the worker-thread engine, and the model-facing workflow tool	Product — stable surface
web/	Web capability family: the abstract seam, search/fetch provider impls, and the model-facing web tools	Product — stable surface
spill/	Spill capability family: the storage seam, a local impl, and the tool-result spill policy	Product — stable surface
todo/	Todo/planning family: the model-facing todo_write tool	Product — stable surface
timeout/	Tool-call timeout policy: the tools/execute deadline enforcer	Product — stable surface
guard/	Loop-hygiene guards: advisory repeat-call reminders	Product — stable surface
cordis/	Self-referential runtime toolset: inspect the live runtime's plugins and services, mount/unmount model-written plugins (design)	Product — stable surface
hooks/	Hook bridges + the shared Claude Code / Codex wire-protocol library	Product — stable surface
session-persistence/	Persistence capability family: the seam + JSONL/SQLite backends	Product — stable surface
session-query/	Session retrieval: logical corpus, bounded reads, lineage, and event relationships	Product — stable surface
sdk/	Project SDK tooling	Product — stable surface
ui/	Editor/client integration surfaces: ACP bridge, JSON-RPC SDK server, user-approval/user-interaction seams, ask-user tool	Product — stable surface
examples/	Demo bundles (agent-spine + stdio/ACP/JSON-RPC bins) the leaves load	Support — example infra
support/	Support infrastructure (testkits, invariants, replay, Loader smokes, subagent mock)	Support — lower compatibility expectations
util/	Low-level zero-dependency utilities shared across groups (Branded<B>, Harness home/path helpers, timeout, retention)	Support — small, stable, harness-dep-free

Groups distinguish product API from support infrastructure. New packages join an existing group; a new group updates its README and this table.

Dependencies

The dependency graph is generated: docs/module-graph.md (pnpm run gen-module-graph, freshness-gated in CI).

The rule it must obey: extension 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. The sanctioned exception is a composition/bundle package like dsh-agent-spine-demo, whose whole job is to assemble the concrete spine: it depends on dsh-agent-loop (and the other concrete spine plugins) on purpose. The rule constrains plugins that EXTEND the system, not the bundle that COMPOSES it. A swappable capability splits into interface / implementation / consumer packages (the bash trio is the template — see capability seams).

Package READMEs cover purpose, APIs, extension points, and Model Experience unless on the model-agnostic omission allowlist. They also carry ## Known Limitations and Deferred Work or use its allowlist.