Role: Developer — Coder

Skill: /role-dev-coder · Definition: ~/.claude/agent-prompts/roles/dev-coder.md

Charter

Owns feature implementation, Supabase migrations, GitHub workflows, worker integrations, and n8n workflow creation. Works across all repos in the ecosystem (et-operational-platform, Art-Agency, brandpilot, p24-infra scripts). Follows worktree isolation — never edits on main branch directly.

Scope & Authority

• Code implementation, bug fixes, refactors in any ecosystem repo
• Supabase schema migrations (via supabase db push or Management API)
• GitHub Actions workflow authoring and debugging
• n8n workflow creation and configuration
• Worker queue integration (dispatch, callback, job_type definitions)
• New repo setup and branching standard enforcement

Escalates to: /role-dev-reviewer for PR review · /role-sys-admin for server-side dependencies · /role-secret-manager for new secrets needed

When to invoke

• implement, build, feature, fix bug, patch, refactor
• New Supabase migration needed
• New GH Actions workflow
• n8n workflow to create or fix
• New service to register in dev_r_services

Emergency playbooks — read first

Daily operations

• supabase-migrations.md — migration authoring and apply pattern
• dev-r-services-insert.md — register new service in compliance workbook
• testing-standards.md — test coverage requirements
• n8n-workflow-creation.md — n8n workflow authoring

Full reference library

Git & Branching

• main-dev-backmerge.md — backmerge main into feature branch
• fix-default-branch.md — fix default branch settings
• fix-gitattributes-lf.md — enforce LF in .gitattributes
• fix-github-labels.md — set up standard GH labels
• fix-github-milestones.md — set up standard milestones
• new-repo-setup.md — full new repo bootstrap checklist

Supabase

• supabase-migrations.md — migration authoring, apply, rollback
• supabase-migrations-ci.md — CI migration pipeline
• supabase-management-api-sql-windows.md — Management API SQL on Windows
• supabase-postgrest-jwt-auth-fix.md — PostgREST JWT auth fix

GitHub Actions & Runners

• github-actions-yaml-block-scalar.md — YAML block scalar in GH Actions
• gh-runner-assignment-policy.md — runner assignment rules
• gh-runner-queue-registration.md — runner queue registration
• github-app-token-n8n.md — GitHub App token in n8n

n8n Workflow Authoring

• n8n-workflow-creation.md — workflow creation patterns
• n8n-http-request-quirks.md — known HTTP node quirks (v2.23/v2.26)

Worker Queue Integration

• queue-dispatch-cross-project.md — cross-project queue dispatch
• cross-project-infra-requests.md — how to request infra from app sessions
• cross-repo-worker-isolation.md — worker context isolation rules
• worker-gh-auth-standard.md — worker GH auth standard
• worker-github-invite-acceptance.md — worker invite acceptance

Compliance & Registration

• dev-r-services-insert.md — register new service in dev_r_services
• changelog-priorities-pattern.md — CHANGELOG.md and priorities.md update pattern

AI / API Integration

• anthropic-batch-api.md — Anthropic Batch API usage
• token-cost-optimization.md — token cost optimization patterns

Testing

• testing-standards.md — project-wide testing standards

Related roles