The frame carried `agentPreset` for surfaces that label the session, but
nothing consumed it: `noteAgentPreset` ran only in the switching tab's RPC
callback, so a second connected client refetched its catalogs while its
session row — the header label's source, and the hero chip's no-op input —
kept the composition the session had replaced.
`SessionManager.handleHostEnvelope` now folds the frame like the other
session frames. Re-applying the switching tab's own frame is a no-op: the
merge lowers `blank` only and keeps the row's `updatedAt`.
Presets own the rows that decide what a session's `/` menu contains, but
both browser catalogs cache per session and had no invalidation edge for a
recompose: `commands/changed` is registry-wide and recomposing registers
nothing, so the menu kept serving the composition the session no longer ran.
The host stream now frames the logged `agent-preset/selected` commit as
`host/session-preset-changed`; the runtime bridges it to the typed
`session/preset-changed` event, `ui-command` soft-refreshes that session's
directory key and `ui-skill` invalidates its catalog entry.
Reaching the host on a second switch was a separate defect: the list-row
identity guard compared every summary field except `agentPreset`, and the
merge keeps the row's `updatedAt`, so a switched row looked unchanged and
served its cached instance forever. The hero chip compares the pick against
that row, so switching back to the creation-time preset sent no RPC at all.
setScopeParent could re-link any key from anywhere, leaving the
blank-session-only recompose rule entirely to caller discipline. The
relation now binds once — a second bind throws — and re-linking exists
only on the ScopeParentBinding returned to the original binder, the
private-capability shape the package conventions prescribe for a
single-caller operation. The preset roster keeps each composed agent's
binding in a WeakMap keyed by the agent, making it the sole authority
that can move an agent between standing compositions; the blank-session
contract itself stays with the gateway, which alone can see what a
session logged.
The durable sandbox/acl-session event carried a workspace binding that
always equals the session cwd and a random temp path that only needed
to be stable per session. Both are now derived: the temp subdirectory
is sha256(session id + workspace), created exclusively and removed on
provider dispose, so fork/resume semantics fall out of the derivation
and the record, its fold/provision/tamper validation, the immediate
flush kick, and the session-store dependency all disappear.
The persistence catalog recognizes augmentations of
'@deepseek-ai/dsh-session/types' alone, so the old root-specifier
declaration compiled but silently vanished from the generated catalog; the
Agent Note also drops its internal repository link for the public-links
gate, and the persistence catalog pair re-records with the restored
agent-preset section.
The battery self-exclusion widens from references/ to the whole skill
directory (SKILL.md quotes the same leaked shapes), and the invocation
rules name the owning note's evidence self-hits; natural-language
battery lines gain -i so sentence-initial capitals hit; the actually/
wait false-positive family states that no committed line probes it.
The one test now says resolvability clears only this skill's bar —
current-state surfaces still reject resolvable change stories; the
never-deletion-alone rule is scoped to passages that carry factual
clauses. The first few-shot Fixed example links the real web
input-machine note path. The citations note's Verification exemption
(+zh, pair re-recorded) names the skill's files and the note's own
quoted evidence, making the claim mechanically honest.
The skills subsystem page and dsh-skill README describe the host+per-scope
layers, SkillViewOptions joins the type-equiv corpus and the cordis-catalog
type pages, generated catalogs pick up the shifted source refs, and the
architecture Agent Note records the decision, the nearest-layer-wins
precedence choice, and the rejected alternatives.
SKILL.md carries the resolvability test, the 8-class taxonomy, the
sanctioned-keeps list, and the owner-first fix workflow; references/
carry 24 few-shot calibration blocks (both citation-boundary directions
plus the four overcorrection traps caught in the purge's review rounds)
and the EN+zh recall batteries with their false-positive families.
dsh-doc-standards' inline leakage probes collapse into a link to the
new skill; dsh-prose-standard gains the sibling pointer; the
committed-artifact-citations note (+zh, pair re-recorded) records the
skill as the operational workflow and exempts its calibration examples
from the battery expectation.