# DESC: Backend / API / system dev — no design, no SEO, focused on logic # Activate when: building backend services, APIs, CLIs, libraries, system # code, data pipelines. UI/visual work is out of scope. SEO/GEO out of scope. # Code work — primary feat personal ship-feature personal hotfix personal bugfix personal investigate refactor personal code-clean personal commit-change personal analyze personal # Dev-lifecycle skills (agent-skills trio) observability-and-instrumentation external deprecation-and-migration external ci-cd-and-automation external # Review review # Second opinion for hard problems codex # Security + health (always relevant for backend) cso health # Session hygiene freeze unfreeze retro # pr-review-toolkit removed (audit 2026-07-02 #12 — ~2.2k tokens, PR-only): # enable per PR session via `bash lib/profile.sh apply audit` or # claude plugin enable pr-review-toolkit@claude-code-plugins # CLIs (advisory) ctx7 cli gsd cli graphify cli