product-analysis

Multi-path parallel product analysis that combines Claude Code agent teams and Codex CLI for cross-model test-time compute scaling.

Core principle: Same analysis task, multiple AI perspectives, deep synthesis.

How It Works

/product-analysis full
         │
         ├─ Step 0: Auto-detect available tools (codex? competitors?)
         │
    ┌────┼──────────────┐
    │    │              │
 Claude Code         Codex CLI (auto-detected)
 Task Agents         (background Bash)
 (Explore ×3-5)      (×2-3 parallel)
    │                   │
    └────────┬──────────┘
             │
      Synthesis (main context)
             │
      Structured Report

Step 0: Auto-Detect Available Tools

Before launching any agents, detect what tools are available:

# Check if Codex CLI is installed
which codex 2>/dev/null && codex --version

Decision logic:

• If codex is found: Inform the user — "Codex CLI detected (version X). Will run cross-model analysis for richer perspectives."
• If codex is not found: Silently proceed with Claude Code agents only. Do NOT ask the user to install anything.

Also detect the project type to tailor agent prompts:

# Detect project type
ls package.json 2>/dev/null    # Node.js/React
ls pyproject.toml 2>/dev/null  # Python
ls Cargo.toml 2>/dev/null      # Rust
ls go.mod 2>/dev/null          # Go

Scope Modes

Parse $ARGUMENTS to determine analysis scope:

Scope	What it covers	Typical agents
full	UX + API + Architecture + Docs (default)	5 Claude + Codex (if available)
ux	Frontend navigation, information density, user journey, empty state, onboarding	3 Claude + Codex (if available)
api	Backend API coverage, endpoint health, error handling, consistency	2 Claude + Codex (if available)
arch	Module structure, dependency graph, code duplication, separation of concerns	2 Claude + Codex (if available)
compare X Y	Self-audit + competitive benchmarking (invokes /competitors-analysis)	3 Claude + competitors-analysis

Phase 1: Parallel Exploration

Launch all exploration agents simultaneously using Task tool (background mode).

Claude Code Agents (always)

For each dimension, spawn a Task agent with subagent_type: Explore and run_in_background: true:

Agent A — Frontend Navigation & Information Density

Explore the frontend navigation structure and entry points:
1. App.tsx: How many top-level components are mounted simultaneously?
2. Left sidebar: How many buttons/entries? What does each link to?
3. Right sidebar: How many tabs? How many sections per tab?
4. Floating panels: How many drawers/modals? Which overlap in functionality?
5. Count total first-screen interactive elements for a new user.
6. Identify duplicate entry points (same feature accessible from 2+ places).
Give specific file paths, line numbers, and element counts.

Agent B — User Journey & Empty State

Explore the new user experience:
1. Empty state page: What does a user with no sessions see? Count clickable elements.
2. Onboarding flow: How many steps? What information is presented?
3. Prompt input area: How many buttons/controls surround the input box? Which are high-frequency vs low-frequency?
4. Mobile adaptation: How many nav items? How does it differ from desktop?
5. Estimate: Can a new user complete their first conversation in 3 minutes?
Give specific file paths, line numbers, and UX assessment.

Agent C — Backend API & Health

Explore the backend API surface:
1. List ALL API endpoints (method + path + purpose).
2. Identify endpoints that are unused or have no frontend consumer.
3. Check error handling consistency (do all endpoints return structured errors?).
4. Check authentication/authorization patterns (which endpoints require auth?).
5. Identify any endpoints that duplicate functionality.
Give specific file paths and line numbers.

Agent D — Architecture & Module Structure (full/arch scope only)

Explore the module structure and dependencies:
1. Map the module dependency graph (which modules import which).
2. Identify circular dependencies or tight coupling.
3. Find code duplication across modules (same pattern in 3+ places).
4. Check separation of concerns (does each module have a single responsibility?).
5. Identify dead code or unused exports.
Give specific file paths and line numbers.

Agent E — Documentation & Config Consistency (full scope only)

Explore documentation and configuration:
1. Compare README claims vs actual implemented features.
2. Check config file consistency (base.yaml vs .env.example vs code defaults).
3. Find outdated documentation (references to removed features/files).
4. Check test coverage gaps (which modules have no tests?).
Give specific file paths and line numbers.

Codex CLI Agents (auto-detected)

If Codex CLI was detected in Step 0, launch parallel Codex analyses via background Bash.

Each Codex invocation gets the same dimensional prompt but from a different model's perspective:

codex -m o4-mini \
  -c model_reasoning_effort="high" \
  --full-auto \
  "Analyze the frontend navigation structure of this project. Count all interactive elements visible to a new user on first screen. Identify duplicate entry points where the same feature is accessible from 2+ places. Give specific file paths and counts."

Run 2-3 Codex commands in parallel (background Bash), one per major dimension.

Important: Codex runs in the project's working directory. It has full filesystem access. The --full-auto flag (or --dangerously-bypass-approvals-and-sandbox for older versions) enables autonomous execution.

Phase 2: Competitive Benchmarking (compare scope only)

When scope is compare, invoke the competitors-analysis skill for each competitor:

Use the Skill tool to invoke: /competitors-analysis {competitor-name} {competitor-url}

This delegates to the orthogonal competitors-analysis skill which handles:

• Repository cloning and validation
• Evidence-based code analysis (file:line citations)
• Competitor profile generation

Phase 3: Synthesis

After all agents complete, synthesize findings in the main conversation context.

Cross-Validation

Compare findings across agents (Claude vs Claude, Claude vs Codex):

• Agreement = high confidence finding
• Disagreement = investigate deeper (one agent may have missed context)
• Codex-only finding = different model perspective, validate manually

Quantification

Extract hard numbers from agent reports:

Metric	What to measure
First-screen interactive elements	Total count of buttons/links/inputs visible to new user
Feature entry point duplication	Number of features with 2+ entry points
API endpoints without frontend consumer	Count of unused backend routes
Onboarding steps to first value	Steps from launch to first successful action
Module coupling score	Number of circular or bi-directional dependencies

Structured Output

Produce a layered optimization report:

## Product Analysis Report

### Executive Summary
[1-2 sentences: key finding]

### Quantified Findings
| Metric | Value | Assessment |
|--------|-------|------------|
| ... | ... | ... |

### P0: Critical (block launch)
[Issues that prevent basic usability]

### P1: High Priority (launch week)
[Issues that significantly degrade experience]

### P2: Medium Priority (next sprint)
[Issues worth addressing but not blocking]

### Cross-Model Insights
[Findings that only one model identified — worth investigating]

### Competitive Position (if compare scope)
[How we compare on key dimensions]

Workflow Checklist

• Parse $ARGUMENTS for scope
• Auto-detect Codex CLI availability (which codex)
• Auto-detect project type (package.json / pyproject.toml / etc.)
• Launch Claude Code Explore agents (3-5 parallel, background)
• Launch Codex CLI commands (2-3 parallel, background) if detected
• Invoke /competitors-analysis if compare scope
• Collect all agent results
• Cross-validate findings
• Quantify metrics
• Generate structured report with P0/P1/P2 priorities

References

• references/analysis_dimensions.md — Detailed audit dimension definitions and prompts
• references/synthesis_methodology.md — How to weight and merge multi-agent findings
• references/codex_patterns.md — Codex CLI invocation patterns and flag reference