0642a1d666
Origin/master advanced after the reviewed fixes were first pushed, leaving PR #219 conflicted. Merge the new vendor Cordis/loader update into the PR branch rather than rewriting pushed history, so the task fixes remain based on the exact current landing target. Preserve the upstream package graph, lockfile, app-boot, and built-bin adjustments as landed on master; resolve only genuine overlaps with the task fixes and regenerate derived artifacts where required. # Conflicts: # packages/subagent/tool-subagent/package.json
dsh-brand
The Branded<B> nominal-typing primitive — a tiny, type-only package (no runtime code, no harness-package dependency) shared by every package that owns a cross-boundary id.
What Branded is
A brand makes structurally-identical strings non-interchangeable at the type level: an AgentId cannot be passed where a CallId is expected, even though both are plain strings at runtime.
import type { Branded } from '@deepseek-ai/dsh-brand'
export type SessionId = Branded<'SessionId'>
/** Brand a string as a SessionId (a plain cast — zero runtime cost). */
export function SessionId(id: string): SessionId {
return id as SessionId
}
Construction goes through the per-id factory in the OWNING package (a plain cast inside — zero runtime cost). Comparison, logging, JSON serialization, and the wire format all behave exactly as for an ordinary string; the brand is erased at compile time.
Policy: brand ids that cross package boundaries
A package brands the ids it OWNS — CallId in dsh-llm (tool-call correlation), SessionId in dsh-session, AgentId in dsh-agent, TaskId in dsh-tasks. Branding is for ids that cross package boundaries and could plausibly be confused; not every string needs a brand.
This package owns ONLY the primitive — no concrete id, no runtime code beyond the (erased) type. Keeping the primitive dependency-free is the point: a capability package can brand its ids without depending on an unrelated package. dsh-tasks, for example, brands TaskId by depending on dsh-brand alone — it never pulls in dsh-llm (or dsh-session) just to reach Branded.