Files
deepseek-harness/packages
Yichen Jiang 03b534de16 feat(credentials): move the store to .credentials.yaml and layer $DSH_HOME/.env
$DSH_HOME/.env carried two incompatible jobs. As credentials-local's writable
secret store it could not be hoisted into process.env — hoisting makes every
stored key read as a read-only launch override and blocks rotation from the
TUI and the web page. But its name and dotenv format promise an environment
file, so a DEEPSEEK_BASE_URL sitting beside a working DEEPSEEK_API_KEY in the
same file was silently ignored: only the credential provider read the
document, and it addresses credential references alone.

Split the two jobs into two files.

.credentials.yaml is the provider-managed store: a strict YAML mapping of
CredentialRef to non-empty string, no version field, no wrapper level. Because
it holds credentials and nothing else, a non-mapping root, a non-identifier
key, a non-string value, an empty string, a duplicate key, and malformed YAML
are all rejections rather than skipped entries — loud at boot and at a write,
warn-and-keep-last-good on a live reload. The dotenv physical-line editor
gives way to a patch of the parsed document, so comments and untouched entries
keep their formatting and any string value round-trips, multi-line included.
Writer lock, read-modify-write, atomic 0600 write under a 0700 directory,
watcher, self-write suppression, and quiescent disposal are unchanged.

$DSH_HOME/.env becomes the user's ordinary environment layer. app-boot's new
loadLayeredEnv loads the invoking directory's .env then the Harness home's,
giving user < project < inherited; the home resolves from the inherited
environment first, so a project .env cannot redirect it.

Credential precedence is unchanged: the live environment still wins read-only
over the file, and shadowed writes still reject. Whether a provider-managed
store should instead win over the environment is a separate decision.

No migration: a key already in $DSH_HOME/.env keeps resolving through the new
environment layer, as a read-only env source that shadows the stored one.
2026-08-04 14:50:38 +08:00
..

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/ TUI and JSON-RPC integrations, 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 + TUI/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.