The harness landed in 4973ada and spread to 11 component test files
without the guide mentioning it, while relays cited the guide as
sanctioning it. Document the per-file @vitest-environment opt-in, the
seam-selection order (pure exported seam, happy-dom, TemplateResult
extraction), happy-dom conventions and limits, and the opportunistic
migration stance for existing extraction tests.
Show a pinned banner at the top of the session view with resource and
runtime diagnostics (skills, prompts, themes, extension load errors) plus
the Anthropic subscription-auth billing notice, recomputed live from the
current runtime so they stay accurate across browser reloads.
Warnings carry an optional dismiss capability; the Anthropic notice is
dismissable and durably suppressed through pi's own anthropicExtraUsage
warning setting. Also fixes the testing-guide skill frontmatter so it
loads.
Add the Relay method skill (execute a long plan as a chain of independent
sessions handing off via spawn_session) under a top-level skills/ folder that
follows the open agent-skills convention, installable with the skills CLI.
Also clarify the changeset-changelog skill: no changeset is needed for changes
outside the npm release allowlist (package.json files), such as repo-only
agent skills under .agents/ and skills/.
Add spawn_subsession / list_subsessions / read_subsession tools that let an
agent start child sessions it stays attached to: the child records its parent
in the session tree, the parent is notified (as a system-authored custom
message that wakes an idle parent and queues behind in-flight work) when the
child stops working, and the parent can inspect children's status and result.
Gated behind a beta flag, off by default, mirroring spawnSessions: enable via
PI_WEB_SUBSESSIONS, the subsessions config key, or the Settings toggle. Also
requires spawnSessions.
Also fix the release skill so the version step resyncs package-lock.json
(npm install --package-lock-only) and the commit step refuses a release where
package.json and package-lock.json versions disagree.
Federico Jaramillo Martinez