# Project subagents The project-level Claude Code subagents live in `./agents/`. They are intentionally few and have distinct ownership: | Agent | Purpose | Write access | Default model | | --- | --- | --- | --- | | `fable-orchestrator` | frames, routes, and accepts verified work | no | Fable | | `scout` | maps code and constraints | no | Haiku | | `planner` | produces a minimal testable plan | no | Opus | | `builder` | implements a named, scoped change | yes | Sonnet | | `lexai-extension-dev` | LexAI-specific implementation (entrypoints, LLM proxy, key handling, selection/replace, Gitea/CWS release) | yes | Sonnet | | `verifier` | independently checks acceptance tests | no direct file tools | Haiku | | `critic` | adversarial review for high-risk work | no direct file tools | Opus | | `security-auditor` | authn/authz, secrets, injection, deps, attack surface | `docs/attacksurface.md` only | Opus | | `learning-steward` | turns proven mistakes into guardrails/evals | only lesson and eval artifacts | Haiku | | `system-steward` | improves agents, skills, and role memory from evidence | operating artifacts only | Opus | | `integrator` | combines independent named changes | yes | Sonnet | ## Use Run Fable as the main session when the work needs coordination: ```powershell claude --agent fable-orchestrator ``` `fable`, `opus`, `sonnet`, and `haiku` are version-flexible Claude Code aliases. They resolve to the newest enabled version for the current provider and account; this avoids leaving the project pinned to an obsolete model ID. For a one-off specialist, invoke it in a normal Claude Code session, for example: ```text @scout Map the code paths and tests relevant to [task]. Do not modify files. @builder Implement the approved task contract for [task] in [paths]. @lexai-extension-dev Implement [task] in entrypoints/ respecting the message contract and key-handling rules. @verifier Verify [task] against these acceptance tests: [tests]. @security-auditor Audit [change/component] for authz, injection, secrets, and attack-surface exposure. @learning-steward Review this verified failure and decide the smallest durable prevention. @system-steward Improve the relevant project agent or skill only from this evidence: [evidence]. ``` For LexAI code (anything under `entrypoints/` or `src/`), prefer `lexai-extension-dev` over the generic `builder` — it knows the message contract, snapshot pattern, and key-handling rules. Use `builder` for repo-agnostic changes (config, tooling, docs). Use no more than one implementer on the same files. For low-risk, isolated work, use a normal Claude Code session instead of adding coordination overhead. ## Memory and skills Fable, Planner, Builder, Verifier, Critic, Learning Steward, Integrator, and System Steward use project-scoped role memory. It is committed under `.claude/agent-memory/` when Claude Code creates it, so the team can review it. Fable also uses Claude Code Auto Memory for session continuity. - `/resume-project`