Built-in Skills

Nimbus ships with five built-in skills. They cover the most common patterns for adding standard code elements.

add-tests

Instructs Nimbus to write tests alongside any implementation change.

nimbus run --skill add-tests "add rate limiting to the /api/users endpoint"

Nimbus will implement the rate limiting and write tests for it. Tests follow the existing test framework and naming conventions in the repo.

Instructs Nimbus to add OpenAPI annotations to any route it touches.

nimbus run --skill add-openapi-docs "add a /health endpoint"

The /health endpoint will be implemented with full OpenAPI documentation: summary, response schema, and status codes.

Instructs Nimbus to check for dependency issues when adding or modifying dependencies.

nimbus run --skill dependency-audit "upgrade FastAPI to v0.115"

Before upgrading, Nimbus will check the target version for known CVEs and breaking changes, and include that analysis in the plan.

Instructs Nimbus to add structured logging to any code it writes.

nimbus run --skill add-logging "add a webhook handler for Stripe events"

The webhook handler will include structured log calls at key points: request received, validation passed/failed, event processed, errors.

Instructs Nimbus to wrap all external calls with typed error handling.

nimbus run --skill add-error-handling "add a GitHub API client"

The GitHub client will handle network errors, rate limits, and API errors with specific exception types — not bare try/except Exception.