Quick Start

Spellbook augments the AI coding assistant (the harness) you already use. After installation, its skills, commands, and MCP server are available inside that harness immediately. Skills invoke automatically when your assistant detects a matching trigger, or manually with /<skill-name>.

Common Workflows

Starting a New Feature or Project

Invoke the develop skill. It handles the entire lifecycle: research, discovery, design, planning, and implementation with quality gates at every phase.

I want to add dark mode to the settings page.

That's it. The develop skill activates automatically when you describe what you want to build, or invoke it explicitly with /develop. It coordinates subagents for research, design review, TDD, code review, and fact-checking.

Debugging an Issue

Describe the bug or paste a stack trace. The debugging skill activates automatically.

This test is failing with a timeout on CI but passes locally.

Or invoke explicitly with /debugging. It selects between scientific debugging, systematic elimination, and CI-specific investigation based on the problem type.

Code Review

Requesting review before a PR:

Review my changes using /requesting-code-review

The requesting-code-review skill assembles context, dispatches review agents, triages findings, and produces a remediation plan.

Deep multi-phase review:

Use advanced-code-review for historical context analysis, fact-checked findings, and tiered severity reporting.

Key Skills

Skill	What it does
develop	Full-lifecycle feature implementation with research, design, planning, and execution
debugging	Structured bug investigation with methodology selection and hypothesis tracking
fractal-thinking	Recursive question decomposition for deep exploration of complex topics
dehallucination	Verifies claims and references are grounded in reality, not fabricated
auditing-green-mirage	Detects tests that pass but don't actually verify behavior