<quick_start> Find the right agent:

• Identify your task type (debug, review, build, explore, etc.)

• Look up the primary agent in the matrix below

• If primary fails, use the fallback

• Match model tier to task complexity </quick_start>

<success_criteria>

• Task routed to the correct primary agent on first attempt

• Fallback agent identified if primary is unavailable or insufficient

• Model tier matched to task complexity (Haiku for search, Sonnet for code, Opus for architecture)

• Zero-cost tools (TaskCreate, TeamCreate) used for progress tracking instead of API calls

• Agent selection justified by the matrix rather than ad-hoc guessing </success_criteria>

Core Capability Matrix

Development Tasks

Task Type Primary Agent Fallback Model Notes

Debug complex issue debug-like-expert skill general-purpose sonnet Hypothesis-driven

Quick bug fix general-purpose — sonnet Simple fixes

Code review code-reviewer feature-dev:code-reviewer haiku Pattern matching

Architecture design Plan agent code-architect opus Complex reasoning

Feature implementation general-purpose feature-dev agents sonnet Code generation

Refactoring code-simplifier general-purpose sonnet Preserve behavior

Security audit security skill general-purpose sonnet OWASP patterns

Write tests testing skill general-purpose sonnet TDD workflow

API design api-design skill general-purpose sonnet REST/GraphQL

API testing api-testing skill general-purpose haiku Postman/Bruno

Exploration & Research

Task Type Primary Agent Fallback Model Notes

Find files by pattern Glob tool (direct) Explore agent — Fastest

Search code content Grep tool (direct) Explore agent — Fastest

Understand codebase area Explore agent general-purpose haiku Thorough search

Deep code analysis code-explorer Explore agent sonnet Traces execution

Research framework/tool research skill WebSearch sonnet Structured eval

Market research research skill WebSearch sonnet Company profiles

Infrastructure & Deployment

Task Type Primary Agent Fallback Model Notes

Docker setup docker-compose skill general-purpose sonnet Local dev

GPU deployment runpod-deployment skill general-purpose sonnet RunPod

Database migration supabase-sql skill general-purpose sonnet Supabase

Stripe integration stripe-stack skill general-purpose sonnet Payments

Voice AI pipeline voice-ai skill general-purpose sonnet Deepgram+Cartesia

LangGraph agents langgraph-agents skill general-purpose sonnet Multi-agent

Fast inference groq-inference skill general-purpose sonnet GROQ API

Chinese LLMs openrouter skill general-purpose sonnet DeepSeek/Qwen

LLM fine-tuning unsloth-training skill general-purpose sonnet GRPO/SFT

Business & GTM

Task Type Primary Agent Fallback Model Notes

GTM strategy gtm-pricing skill general-purpose sonnet ICP, positioning

Sales outreach sales-revenue skill general-purpose sonnet Cold email

CRM integration crm-integration skill general-purpose sonnet Close/HubSpot

Content marketing content-marketing skill general-purpose sonnet B2B content

Data analysis data-analysis skill general-purpose sonnet Dashboards

Trading signals trading-signals skill general-purpose sonnet Technical analysis

Business model business-model-canvas skill general-purpose sonnet 9-block canvas

Market differentiation blue-ocean-strategy skill general-purpose sonnet ERRC framework

Workflow & Coordination

Task Type Primary Agent Fallback Model Notes

Session start/end workflow-orchestrator skill — sonnet Daily lifecycle

Parallel worktree dev agent-teams skill worktree-manager skill sonnet Full isolation

In-session parallel subagent-teams skill sequential execution haiku-sonnet Task tool

Progress tracking TaskCreate/TaskUpdate TodoWrite — Native UI spinners

Team coordination TeamCreate + SendMessage subagent-teams skill haiku-sonnet Shared task list

Git workflow git-workflow skill general-purpose haiku Commits, PRs

Skill authoring extension-authoring skill general-purpose sonnet Skills, hooks

Project planning planning-prompts skill Plan agent sonnet Meta-prompts

Cost tracking cost-metering skill manual tracking haiku Budget status

Decision Flowchart

START: What do I need to do? │ ├── Search/Find something? │ ├── Know the file pattern? → Glob (direct) │ ├── Know the code pattern? → Grep (direct) │ └── Need to understand area? → Explore agent (haiku) │ ├── Write/Change code? │ ├── Simple fix? → general-purpose (sonnet) │ ├── New feature? → Check if a skill matches → skill or general-purpose (sonnet) │ ├── Architecture? → Plan agent (opus) │ └── Parallel build? → subagent-teams or agent-teams │ ├── Review/Validate? │ ├── Code review? → code-reviewer (haiku) │ ├── Security? → security skill (sonnet) │ └── Tests? → testing skill (sonnet) │ ├── Research/Learn? │ ├── Codebase? → Explore agent (haiku) │ ├── Framework? → research skill (sonnet) │ └── Market? → research skill (sonnet) │ └── Business/GTM? └── Check Business section of matrix above

Model Tier Guide

Tier Model Cost/1M In Best For

Fast Haiku 4.5 $1.00 Search, classify, review, simple tasks

Standard Sonnet 4.6 $3.00 Code generation, reasoning, most tasks

Premium Opus 4.6 $5.00 Architecture, complex decisions, planning

Free TaskCreate $0 Progress tracking (local UI, not an API call)

Default to Sonnet unless:

• Task is search/classify → use Haiku (5x cheaper)

• Task requires deep reasoning → use Opus (5x more capable)

• Task is progress tracking → use TaskCreate with activeForm for live spinners (zero cost)

Cross-references: subagent-teams for in-session parallel agents, agent-teams for worktree-isolated parallel agents.

Deep dive: See reference/matrix-table.md , reference/selection-flowchart.md