Files
deepseek-harness/packages
creatixchu f8ef2cf36b fix(web): give the backdrop the trailing-line sentinel so the layers share one extent
Review caught a real divergence the earlier measurements missed: mirroring
an offset is only correct while both layers can reach it, and for a draft
ending in a newline the backdrop could not.

A textarea reserves a line box for the caret after a final newline.
`white-space: pre-wrap` collapses a text node's trailing newline and
generates none. So a draft ending in a newline made the backdrop exactly one
line shorter than the textarea — measured 628 against 652 — and the mirrored
assignment clamped, leaving the glyphs one line behind the caret at the very
bottom of the draft.

The backdrop now carries the same trailing-line sentinel the mirror div has
carried all along: its content is the decoration walk plus one newline. The
same pre-wrap collapse absorbs it when the draft does not end in a newline,
so it costs no height in the ordinary case, and it supplies the missing line
box when it does. Verified in isolation first: a bare pre-wrap div measures
180/180/198 against a textarea's 180/198/216 for zero, one and two trailing
newlines, and 180/198/216 with the sentinel.

Coverage for the shape that exposed it: the browser scenario asserts the two
extents are equal before asserting the glyphs reach the end, observing each
layer's maximum by asking for an impossible offset and reading back the
clamp rather than computing it from scrollHeight, and the golden records the
relation. The unit spec pins the backdrop's text as the draft plus exactly
one newline. Removing the sentinel fails both, the e2e with the same 628
against 652.

The scrollbar-gutter half of the same review point does not reproduce here:
both layers measure clientWidth 776 against a border box of 776 while the
draft overflows, so this engine's textarea scrollbar is an overlay and takes
no width out of the wrap.
2026-07-31 12:12:54 +08:00
..
2026-07-30 21:50:48 +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/ 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 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.