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AI Agent LifeOS Layer Boundary Contract

规定 AI Agent LifeOS 各层之间的职责、准入和越界判断契约。

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AI Agent LifeOS Layer Boundary Contract

Summary

This page defines the LifeOS-specific boundary contract for AI Agent layers: wiki, memory, skill, cron, MCP, profile, and session.

It is not a generic context-routing checklist. The differentiator is the LifeOS topology decision: keep the main semantic layer in the main coordination context, then use the other primitives for knowledge, methods, automation, and tool access before introducing runtime-state isolation.

Use hermes-context-layer-operating-rules for context-window and project-state operating rules. Use this page when deciding whether a LifeOS capability belongs in the main coordination context, a durable knowledge/method layer, or a separate runtime profile.

Capability boundary

memory / skill / cron / MCP / profile 在此是职责简称。可以分别由授权的偏好存储、SOP、系统调度器、API/CLI/连接器和独立运行环境承担；缺少某项原生能力时不必补齐。Profile 名称不证明凭证、权限或状态隔离，真实隔离必须由目标系统配置和测试证实。调度任务应自包含，但是否创建 fresh session 取决于调度器。

Core contract

AI Agent LifeOS should stay unified by default.

main coordination context
├── wiki      -> formal knowledge and domain models
├── memory    -> short stable facts and preferences
├── skills    -> reusable methods
├── cron      -> scheduling of stable methods
├── MCP       -> live external-system capabilities
└── sessions  -> temporary exploration and task state

Dedicated profiles are rare isolation boundaries, not domain folders.

Layer map

wiki

Role: formal LifeOS knowledge layer for concepts, domain models, decision records, comparisons, and durable query answers.

Allowed:

  • LifeOS architecture, domain models, stable conclusions, public runbooks, and formal pages needing links and sources.

Forbidden:

  • Temporary task state, raw chat as final page, private execution records, scheduling metadata, and secrets.

Judgment sentence: if it answers “what is this, why is it designed this way, and how does it relate to other knowledge,” prefer wiki.

memory

Role: short, stable, high-value facts worth default injection.

Allowed:

  • Long-term preferences, canonical paths, stable environment facts, verified tool quirks, and one-sentence constraints.

Forbidden:

  • Long explanations, project progress, article summaries, temporary workarounds, and anything needing sections or examples.

Judgment sentence: if it cannot be compressed into one stable fact, do not put it in memory.

skill

Role: repeatable method layer with triggers, workflow steps, pitfalls, and verification.

Allowed:

  • Wiki ingestion, code review, governance cleanup, and other recurring processes once repeated and stable.

Forbidden:

  • Broad conceptual essays, personal preference facts, pure tool availability notes, and one-off task decisions.

Judgment sentence: if it answers “how should this kind of work be done next time,” prefer skill.

cron

Role: time-based scheduling layer for stable methods with self-contained inputs.

Allowed:

  • Stable recurring summaries, periodic health checks, watchdogs, monitoring, and reminders with clear failure behavior.

Forbidden:

  • Unproven workflows, business logic hidden inside prompts, jobs needing current-chat context, and silent-failure tasks.

Judgment sentence: cron answers “when should this run,” not “how does this method work.”

MCP

Role: external live-system capability layer.

Allowed:

  • Calendar, mail, docs, spreadsheets, maps, GitHub, monitoring, task systems, and other narrow tool access.

Forbidden:

  • Long-term knowledge storage, method definitions, scheduling definitions, and static notes better represented elsewhere.

Judgment sentence: if the core problem is “AI Agent needs to read or operate a live external system,” consider MCP.

profile

Role: runtime-state isolation layer for configuration, memory, sessions, skills, cron, gateway state, identity, or experimental behavior.

Allowed:

  • Work/personal separation, public or multi-user bot identity, lab experiments, high-risk automation, or any case where state pollution has real cost.

Forbidden:

  • One profile per life domain, topic folders, splitting the main LifeOS semantic layer, or creating a profile because a subject is important.

Hard rule:

  • No new profile without explicit isolation benefit.
  • Prefer wiki / skill / cron / MCP for domain and workflow separation.
  • Keep the main LifeOS meaning layer in 主协调上下文 unless there is a concrete runtime-state conflict.

Judgment sentence: profile answers “does runtime state need isolation,” not “is this a new domain.”

session

Role: temporary working context for exploration, in-flight reasoning, unverified hypotheses, and one-off intermediate state.

Allowed:

  • Current-task assumptions, tool outputs while deciding, unverified ideas, and temporary clarifications.

Upgrade routes:

  • Short stable fact -> memory.
  • Repeatable method -> an existing SOP or skill.
  • Formal knowledge -> wiki.
  • Stable recurring execution -> a stable method (SOP or skill) + an authorized scheduler/cron.
  • Live external capability -> an authorized API, CLI, connector, or suitable MCP.
  • Runtime-state isolation need -> profile.

Judgment sentence: important does not mean persistent; unstable content stays in session.

One-screen decision matrix

  • External live capability -> an authorized API, CLI, connector, or suitable MCP
  • Repeatable method -> an existing SOP or skill
  • Stable time-based execution -> cron
  • Short stable fact -> memory
  • Formal knowledge asset -> wiki
  • Runtime-state isolation -> profile
  • Temporary exploration -> session

If multiple layers are involved, split by role instead of duplicating the same content everywhere.

Example: a weekly school-information review may have a domain model in wiki, a research method in skill, a schedule in cron, live school/calendar access via MCP, and stable user preferences in memory.

LifeOS-specific anti-patterns

  • Creating a family, investment, or workout profile just because the domain is important.
  • Putting long family/finance/education strategy pages into memory.
  • Encoding recurring review processes only as cron prompts.
  • Mixing conceptual explanations with private execution state; public runbooks belong in operations/.
  • Turning skills into architecture essays.
  • Treating current-session exploration as already-governed durable knowledge.

Relationship to adjacent pages

This page should remain the LifeOS architecture contract, especially around profile as runtime-state isolation. If it drifts into a generic routing checklist, merge useful pieces back into adjacent pages instead of keeping a redundant page.

Relations

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