developer-backend

Backend Development Standards

Always load clean-code alongside this skill. Use the detect-language tool to dynamically load the language-specific skill (e.g. lang-py, lang-go) for the code you are writing. Run the env-get tool for the DEVELOPER_SKILLS variable. If it returns a comma-separated list of skill names, load each of them.

Cross-Cutting Rules

• Errors: Return explicitly. Never swallow, never throw for control flow. Include context (what failed, with what input).
• DI: Accept interfaces, return concretes. Wire at entry point.
• Logging: Structured (JSON). Correlation/request IDs. Never log secrets.
• Security: Secrets from env or secret manager — never VCS. Parameterized queries. Validate inputs. Timeouts on HTTP clients.
• Config: Env vars with safe defaults. Validate at startup, fail fast.
• Testing: Test error paths. Table-driven/parameterized. Testcontainers for integration.
• Automation: Use run-quality-checks to run validations, formatters, and tests before finalizing.