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name: architectural-forensics description: Master protocol for deconstructing agent frameworks to inform derivative system architecture. Use when (1) analyzing an agent framework's codebase comprehensively, (2) comparing multiple frameworks to select best practices, (3) designing a new agent system based on prior art, (4) documenting architectural decisions with evidence, or (5) conducting technical due diligence on AI agent implementations. This skill orchestrates sub-skills for data substrate, execution engine, cognitive architecture, and synthesis phases.

Architectural Forensics Protocol

Deconstruct agent frameworks to inform derivative system architecture.

Mission

Distinguish between software engineering decisions (how it runs) and cognitive architecture decisions (how it thinks) to extract reusable patterns for new systems.

Quick Start

# 1. Map the codebase (uses codebase-mapping skill's script)
python .claude/skills/codebase-mapping/scripts/map_codebase.py /path/to/framework --output codebase-map.json

# 2. Run analysis via the command
/analyze-frameworks

Protocol Phases

Phase 1: Engineering Chassis

Analyze the software substrate. See references/phase1-engineering.md for detailed guidance.

Analysis	Focus Files	Output
Data Substrate	types.py, schema.py, state.py	Typing strategy, mutation patterns
Execution Engine	runner.py, executor.py, agent.py	Async model, control flow topology
Component Model	base_*.py, interfaces.py	Abstraction depth, DI patterns
Resilience	executor.py, try/except blocks	Error propagation, sandboxing

Phase 2: Cognitive Architecture

Extract agent "business logic". See references/phase2-cognitive.md for detailed guidance.

Analysis	Focus Files	Output
Control Loop	agent.py, loop.py	Reasoning pattern, step function
Memory	memory.py, context.py	Context assembly, eviction policies
Tool Interface	tool.py, functions.py	Schema generation, error feedback
Harness-Model Protocol	llm.py, adapters/, stream.py	Wire format, tool call encoding, agentic primitives
Multi-Agent	orchestrator.py, router.py	Coordination model, state sharing

Phase 3: Synthesis

Generate actionable outputs:

1. Best-of-Breed Matrix → Framework comparison table
2. Anti-Pattern Catalog → "Do Not Repeat" list
3. Reference Architecture → New framework specification

Execution Workflow

┌─────────────────────────────────────────────────────────┐
│                    For Each Framework                    │
├─────────────────────────────────────────────────────────┤
│  1. codebase-mapping                                    │
│       ↓                                                 │
│  2. Phase 1 Analysis (parallel)                         │
│     ├── data-substrate-analysis                         │
│     ├── execution-engine-analysis                       │
│     ├── component-model-analysis                        │
│     └── resilience-analysis                             │
│       ↓                                                 │
│  3. Phase 2 Analysis (parallel)                         │
│     ├── control-loop-extraction                         │
│     ├── memory-orchestration                            │
│     ├── tool-interface-analysis                         │
│     ├── harness-model-protocol                          │
│     └── multi-agent-analysis (if applicable)            │
└─────────────────────────────────────────────────────────┘
        ↓
┌─────────────────────────────────────────────────────────┐
│                      Synthesis                           │
├─────────────────────────────────────────────────────────┤
│  4. comparative-matrix                                   │
│  5. antipattern-catalog                                  │
│  6. architecture-synthesis                               │
└─────────────────────────────────────────────────────────┘

Quick Analysis (Single Framework)

For rapid assessment, run the minimal path:

codebase-mapping → execution-engine-analysis → control-loop-extraction → tool-interface-analysis

Output Directory Structure

forensics-output/                    # Working/intermediate files
├── .state/
│   ├── manifest.json
│   └── {framework}.state.json
└── frameworks/
    └── {framework}/
        ├── codebase-map.json
        ├── phase1/*.md
        └── phase2/*.md

reports/                             # Final deliverables
├── frameworks/
│   └── {framework}.md               # Framework summary
└── synthesis/
    ├── comparison-matrix.md
    ├── antipatterns.md
    ├── reference-architecture.md
    └── executive-summary.md

State Management & Resumption

The protocol is designed to be stateful and resumable.

• Idempotency: The Orchestrator tracks progress in manifest.json and will skip frameworks marked as completed.
• Clean Slate Resumption: If a run is interrupted, frameworks marked as in_progress are considered "stale". Use python scripts/state_manager.py reset-running to move them back to pending and delete their partial output directories, ensuring a clean restart for those items.

Agent Orchestration

This skill uses a 4-tier hierarchy of specialized agents for context efficiency:

Orchestrator
    │
    └── Framework Agents (parallel, one per framework)
            │
            └── Skill Agents (parallel, one per skill) [COORDINATORS]
                    │
                    └── Reader Agents (parallel, one per file cluster) [EXTRACTORS]
                            │
                            └── Synthesis Agent (cross-framework synthesis)

Agent Roles

Agent	Context Budget	Reads	Produces
Orchestrator	~10K	State files	Coordination decisions
Framework Agent	~50K	Skill outputs	Framework summary report
Skill Agent	~25K	Cluster extracts	Skill analysis report
Reader Agent	~20K	1-5 source files	JSON extract (~2K)
Synthesis Agent	~40K	All framework reports	Comparison matrix, architecture spec

Key Innovation: Cluster-Based Reading

Reader Agents read file clusters (1-5 related files) rather than individual files:

• Clusters are grouped by relationship: hierarchy, module cohort, type+usage, interface+impl
• Cross-file patterns (inheritance, imports, shared state) are captured in the extract
• This enables understanding architectural patterns that span multiple files

See:

• references/orchestrator-agent.md — Top-level coordination
• references/framework-agent.md — Per-framework analysis coordination
• references/skill-agent.md — Skill coordination and cluster assignment
• references/reader-agent.md — File cluster extraction
• references/synthesis-agent.md — Cross-framework synthesis

Sub-Skill Reference

Skill	Purpose	Key Outputs
codebase-mapping	Repository structure	File tree, dependencies, entry points
data-substrate-analysis	Type system	Typing strategy, serialization
execution-engine-analysis	Control flow	Async model, event architecture
component-model-analysis	Extensibility	Abstraction patterns, DI
resilience-analysis	Error handling	Error propagation, sandboxing
control-loop-extraction	Reasoning loop	Pattern classification, step function
memory-orchestration	Context management	Assembly, eviction, tiers
tool-interface-analysis	Tool system	Schema gen, error feedback
harness-model-protocol	LLM interface layer	Wire format, encoding, agentic primitives
multi-agent-analysis	Coordination	Handoffs, state sharing
comparative-matrix	Comparison	Decision tables
antipattern-catalog	Tech debt	Do-not-repeat list
architecture-synthesis	New design	Reference spec