Add 5 pi extensions: pi-subagents, pi-crew, rpiv-pi, pi-interactive-shell, pi-intercom

extensions/pi-crew/skills/task-packet/SKILL.md

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+---
+name: task-packet
+description: Structured worker task-packet template. Use when creating or executing worker tasks that need clear objective, scope, constraints, outputs, acceptance criteria, and verification.
+---
+
+# task-packet
+
+Use this skill when creating or executing a worker task.
+
+## Required sections
+
+Each task should clarify:
+
+- objective;
+- scope and paths;
+- constraints and permissions;
+- dependencies and expected inputs;
+- expected outputs/artifacts;
+- acceptance criteria;
+- verification commands;
+- escalation conditions.
+
+## Worker behavior
+
+- Read dependency outputs before starting dependent work.
+- Keep outputs concise and artifact-oriented.
+- Do not claim completion until required artifacts and status are durable.
+- If blocked, report the blocker and the smallest recoverable next action.