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https://github.com/deepseek-ai/deepseek-harness
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A configuration surface never holds a stored secret — it edits a redacted descriptor — so once a key is saved, the draft it sends carries the route and the endpoint and no credential at all. The interrogation went out unauthenticated and the endpoint's 401 came back as "check the API key", pointing at the one thing that was fine. A named route now supplies its own credential, resolved exactly as a request to it would be. A key typed into the form still wins: it is the one under test, and may be the replacement for the stored one that is failing. Resolution is a callback the probe invokes past the catalog short-circuit and the protocol check, so a route answered from the installed registry costs no credential lookup — and cannot fail over a credential the question never needed.
Packages
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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: sessions, prompts, tools, agent services, and the concrete loop | Product — stable surface |
typert/ |
Type graph generation, artifact loading, and runtime registry | Product — stable surface |
goal/ |
Persisted same-session goal state and lifecycle | Product — stable surface |
llm/ |
LLM capability family: the abstract service + provider adapters | Product — stable surface |
subprocess/ |
Subprocess capability family: spawn seam + local process-tree implementation | Product — stable surface |
bash/ |
Bash capability family: executor seam, local impl, model-facing tool | Product — stable surface |
pty/ |
Persistent PTY capability family: owner-scoped sessions, local implementation, and model-facing tools | Product — stable surface |
code-runtime/ |
Code-execution capability family: the 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: seam, local impl, model-facing file tools, bash-backed discovery tools | Product — stable surface |
lsp/ |
LSP capability family: seam, generic stdio provider, and the lsp tool |
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, worker-thread engine, and model-facing workflow and fresh-agent ralph tools |
Product — stable surface |
web/ |
Web capability family: seam, search/fetch provider impls, and the model-facing web tools | Product — stable surface |
spill/ |
Spill capability family: storage seam, local impl, tool-result spill policy | Product — stable surface |
todo/ |
The model-facing todo_write tool |
Product — stable surface |
plan/ |
Plan collaboration state with a direct entry command and reviewed exit | 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/ |
Cordis runtime integration: self-inspection/model-written temporary Plugins and restricted repository Plugin loading | Product — stable surface |
hooks/ |
Hook bridges + the shared Claude Code / Codex wire-protocol library | Product — stable surface |
session-persistence/ |
Persistence seam + JSONL/SQLite backends | Product — stable surface |
session-projection/ |
Projection seam: domain fold units serve whole values | Product — stable surface |
session-query/ |
Session retrieval family: logical corpus, bounded reads, lineage, event relationships, semantic filtering, and SQLite full-text search | Product — stable surface |
session-title/ |
Log-backed session titles: fallback service and opt-in LLM providers | Product — stable surface |
settings/ |
User-settings seam + file-backed provider | Product — stable surface |
credentials/ |
Credential-reference seam + env-over-.env provider |
Product — stable surface |
telemetry/ |
Session reporting: capture/redact seam, OTel backend | Product — stable surface |
storage/ |
Non-session storage hub + backends + domain form | Product — stable surface |
workspace/ |
Workspace entity | Product — stable surface |
sdk/ |
Project SDK tooling | Product — stable surface |
acp/ |
Automation-only Agent Client Protocol server | Product — stable surface |
ui/ |
JSON-RPC integration, approval/interaction seams, ask-user tool | Product — stable surface |
host/ |
Web-GUI host half: API gateway + HTTP route server | Product — stable surface |
client/ |
Web-GUI browser half: shell, wire, object services, slots, ui-* plugins |
Product — stable surface |
experimental/ |
Prototypes and internal plugins | Unreleased |
examples/ |
Demo bundles (agent-spine + CLI/ACP/JSON-RPC bins) leaves load | Support — example infra |
support/ |
Support infrastructure (testkits, invariants, replay, Loader smokes) | 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 |
New packages join existing groups; new groups update their README and this table.
Dependencies
The dependency graph is generated: docs/module-graph.md (pnpm run gen-module-graph, freshness-gated in CI).
Extension plugins depend on interfaces, never the concrete loop. dsh-agent-loop is swappable; UI, hook, and tool plugins use dsh-agent. Composition bundles, including dsh-agent-spine-demo, may depend on spine plugins. Capabilities split into interface / implementation / consumer packages; 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.