# Profiles and blueprints Understand optional profile and blueprint helpers and the home/runtime boundaries that remain under operator control. # Profiles and blueprints > **Status: advanced, optional helper.** A complete aweb team may use only > identity, membership, and communication. It does not need Library, a profile > service, a blueprint, or a materialized runtime home. A blueprint can describe a useful team shape. A profile can describe one kind of agent within that team. The `aw` CLI offers opt-in profile materialization, but the operator or orchestrator owns agent definitions, homes, worktrees, runtime selection, process lifecycle, and session UX. ## The four nouns ### Team A team is the coordination boundary. Its members share work, roles, instructions, locks, mail, chat, and presence. ### Agent An agent is a named member of a team. Membership requires an identity, not a profile or a materialized home. When an operator chooses profile materialization, the same team can contain several agents using the same profile. ### Profile A profile is the portable operating package for a kind of agent: its mission, accepted work, instructions, skills, and related resources. A profile does not contain final identities, team certificates, credentials, or a required AI vendor. ### Runtime A runtime is the AI tool an operator or orchestrator selects—for example, Claude Code, Pi, Codex, or `local-shell`. Runtime is an external staffing choice, not a property of the profile or an aweb-owned lifecycle. ## Optional public Library seed [`aweb.team`](https://library.aweb.ai/blueprints/aweb.team) is a maintained starter blueprint in the open [aweb Library](https://library.aweb.ai). It contains profiles such as [`developer`](https://library.aweb.ai/blueprints/aweb.team/profiles/developer) and [`reviewer`](https://library.aweb.ai/blueprints/aweb.team/profiles/reviewer). When you opt into a Library-backed specification such as: ```text alice@aweb.team/developer=claude-code ``` the CLI reads that public profile from the catalog and materializes a pinned local snapshot. This path requires catalog access, but the team itself does not. An empty-profile member such as `alice:local` requires no Library service or plugin. ## What the optional materialization helper creates When selected, the helper creates a home containing: - the agent's aweb identity and team context; - profile resources under `.aw/profile/`; - `.aw/profile/ref.json`, recording the blueprint/profile version and digest; - runtime-specific entry files such as `AGENTS.md`; - an isolated `worktree/` when the home is associated with a git repository; - `work-main/` only for profiles explicitly allowed to operate against the main checkout. The source blueprint is a seed, not a runtime dependency. The agent continues to work from its pinned local snapshot if the catalog is unavailable or the upstream profile later changes. ## Identity scope is separate The profile may supply a default identity scope, and the operator can choose it explicitly in the agent specification: ```text alice@aweb.team/developer:local=claude-code alice@aweb.team/developer:global=claude-code ``` - `:local` is a team-scoped identity. - `:global` is a durable AWID identity that can hold addresses and memberships in more than one team. This does not decide whether the team itself is hosted or BYOT. Hosted/BYOT is the team-authority axis; local/global is the agent-identity axis. ## Public seed versus private evolution Creating or adding a member with a Library-backed profile reads the public catalog. Improving that profile for one team is a separate, opt-in loop using the team's private Library shelf: 1. adopt the public pin onto the team shelf; 2. let agents propose improvements as they work; 3. have the reviewing coordinator approve or reject them under the human's policy; 4. refresh the materialized home from the approved shelf version. See [Improve a profile as the team works](improve-profile.md) when the team is ready to retain what it learns. ## Planned discovery commands Catalog browsing is available today through [library.aweb.ai](https://library.aweb.ai). CLI commands such as `aw blueprint search` remain planned and must not be used as an onboarding dependency.