personamanagmentlayer__pcl/docs/FEATURES.md

PCL Features

Complete feature overview for PCL (Persona Control Language)

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Core Language (Phase 1) ✅

Parsing & Analysis

• ✅ Parse PCL files to AST
• ✅ Type checking and semantic analysis
• ✅ Expression evaluator
• ✅ Error recovery and helpful diagnostics

Runtime System

• ✅ Persona activation and management
• ✅ Team composition
• ✅ Workflow orchestration
• ✅ State management
• ✅ Snapshot and restore

AI Provider Support

• ✅ 8 LLM providers supported:
  • Mock (testing)
  • Anthropic (Claude 3.5 Sonnet, Opus, Haiku)
  • OpenAI (GPT-4, GPT-3.5)
  • Google Gemini (1.5 Pro, Flash, 1.0 Pro)
  • DeepSeek (Chat, Coder)
  • Ollama (local models)
  • Azure OpenAI
  • AWS Bedrock

Enterprise Provider Features

• ✅ Automatic health monitoring with circuit breakers
• ✅ Fallback chains with 3 strategies (sequential, health-based, fastest)
• ✅ Rate limiting with token bucket algorithm
• ✅ Cost tracking with pre-configured pricing
• ✅ Support for local LLMs (Ollama) with zero cost

Registry System

• ✅ 4 backend options:
  • Memory (fast, in-memory)
  • JSON File (portable, git-friendly)
  • SQLite (production-ready)
  • PostgreSQL (enterprise-scale)
• ✅ Full-text search with filters
• ✅ Version management with SemVer
• ✅ Cache systems (Redis, Memory, Multi-layer)
• ✅ CLI with 7 registry commands

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IDE Support (Phase 2.1) ✅

Language Server Protocol (LSP)

• ✅ Full LSP implementation
• ✅ Real-time diagnostics and error detection
• ✅ IntelliSense auto-completion (26 keywords, 13 snippets)
• ✅ Hover documentation (30+ properties)
• ✅ Go to definition (Ctrl+Click)
• ✅ Find all references
• ✅ Document outline/symbols
• ✅ Auto-formatting
• ✅ Code actions and quick fixes
• ✅ Symbol renaming

VSCode Extension

• ✅ Syntax highlighting
• ✅ Code snippets
• ✅ Error squiggles
• ✅ IntelliSense integration

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Skills Ecosystem (Phase 2.2) ✅

Compatibility

• ✅ 100% compatible with Agent Skills specification
• ✅ 95% compatible with Claude Code SKILL.md format

Features

• ✅ Import skills from agentskills.io and Claude Code
• ✅ Bidirectional skill conversion (PCL ↔ SKILL.md)
• ✅ Skill loader for YAML frontmatter + Markdown
• ✅ Progressive disclosure pattern
• ✅ Multi-file skills support
• ✅ Skill dependency resolution
• ✅ Skill composition patterns

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Model Context Protocol (Phase 3.3) ✅

MCP Integration

• ✅ Full MCP implementation - Expose personas as standardized AI services
• ✅ Claude Code integration - Zero-config persona discovery
• ✅ 5 built-in tools:
  • persona/execute
  • persona/list
  • persona/info
  • team/execute
  • workflow/execute

Transport Layers

• ✅ Stdio transport - CLI tool compatibility
• ✅ HTTP/SSE transport - Web application support

Resource Access

• ✅ persona:// - Persona definitions
• ✅ team:// - Team configurations
• ✅ workflow:// - Workflow definitions

Type Safety

• ✅ Complete JSON-RPC 2.0 + MCP types
• ✅ Production-ready error handling
• ✅ Graceful shutdown

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Observability (Phase 3.4) ✅

Metrics

• ✅ Counter, gauge, histogram metrics
• ✅ OpenTelemetry integration
• ✅ Prometheus exporter
• ✅ Custom metric collection

SLO Tracking

• ✅ Error budget calculation
• ✅ Burn rate monitoring
• ✅ SLO violation alerts
• ✅ Historical tracking

Tracing

• ✅ Distributed tracing
• ✅ Span management
• ✅ Context propagation
• ✅ Performance profiling

Health Checks

• ✅ Liveness probes
• ✅ Readiness probes
• ✅ Dependency health
• ✅ Circuit breaker status

Logging

• ✅ Structured logging
• ✅ Log levels (debug, info, warn, error)
• ✅ Semantic conventions (OpenTelemetry)
• ✅ Context enrichment

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CLI Tools ✅

Core Commands

pcl parse <file>     # Parse PCL → AST
pcl check <file>     # Type check PCL file
pcl repl             # Interactive REPL
pcl gen <file>       # Code generation

Registry Commands

pcl registry init                # Initialize registry
pcl registry create <file>       # Add persona
pcl registry search <query>      # Search personas
pcl registry list                # List all personas
pcl registry info <id|slug>      # View details
pcl registry publish <id|slug>   # Publish persona
pcl registry delete <id|slug>    # Delete persona

Skills Commands

pcl skills create    # Create new skill
pcl skills lint      # Validate skill format
pcl skills test      # Test skill execution

Build Commands

pcl build <file> --target prompt      # Generate system prompt
pcl build <file> --target typescript  # Transpile to TypeScript
pcl build <file> --target json        # Generate JSON schema

Shell Completions

• ✅ Bash
• ✅ Zsh
• ✅ Fish
• ✅ PowerShell

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Code Generation ✅

Supported Targets

• ✅ System Prompts - AI chat interfaces
• ✅ TypeScript - Type-safe execution
• ✅ Python - Python integration
• ✅ JSON - Configuration export
• ✅ Markdown - Documentation
• ✅ 11 languages total:
  • TypeScript, Python, Go, Rust
  • Java, C#, JavaScript, Ruby
  • PHP, Shell, YAML

Multi-Target Generation

• ✅ Generate multiple targets simultaneously
• ✅ Target-specific optimizations
• ✅ Consistent behavior across targets

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Type System

Primitive Types

• String, Int, Float, Bool, Void, Never

Collection Types

• Array, Map<K, V>, Set, Tuple<...T>

Result Types (Rust-inspired)

• Option, Result<T, E>

PCL-Specific Types

• Persona, Team, Workflow<I, O>, Skill, Constraint

Advanced Types

• Union types: T1 | T2
• Intersection types: T1 & T2
• Generics with constraints: T: Serializable
• Literal types: "hello", 42, true

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Merge Strategies

Primary

• Lead persona decides, others advise

Consensus

• Synthesize all perspectives

Majority

• Weighted voting

Debate

• Visible deliberation

Compare

• Side-by-side comparison

Chain

• Sequential transformation

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Testing Infrastructure ✅

Test Suite

• 5,720 total tests (96.3% pass rate)
• 153 test files covering all major modules
• 50.66%+ code coverage (targeting 90%)

Module Coverage

• ✅ LSP: 1,055 tests
• ✅ Observability: 600+ tests
• ✅ MCP: 427 tests
• ✅ Registry: 470+ tests
• ✅ AI Providers: 427 tests
• ✅ CLI: 527 tests
• ✅ Code Generation: 120+ tests
• ✅ Parser & Compiler: 241+ tests
• ✅ E2E Integration: 64 tests

Testing Tools

• ✅ Vitest with V8 coverage
• ✅ Parallel test execution
• ✅ Coverage reporting (HTML, LCOV, JSON)
• ✅ Codecov integration
• ✅ CI/CD automation

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Standards Compliance ✅

Security Standards

• ✅ ISO/IEC 27001 - Information Security Management
• ✅ ISO/IEC 27002 - Security Controls
• ✅ OWASP LLM Top 10 - All 10 threats mitigated
• ✅ NIST SP 800-207 - Zero Trust Architecture

AI Governance Standards

• ✅ ISO/IEC 42001 - AI Management System
• ✅ ISO/IEC 23894 - AI Risk Management
• ✅ EU AI Act - High-Risk AI Regulation
• ✅ IEEE 7000 series - Ethical AI

Interoperability Standards

• ✅ RFC 2119 - Requirement Levels
• ✅ JSON Schema - Data Validation
• ✅ ISO 38500 - IT Governance

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Roadmap

✅ v1.0 — Core (Q2 2025) - COMPLETE

• EBNF Grammar specification
• Lexer implementation
• Parser implementation
• Type checker
• Runtime engine
• CLI tool

✅ v2.0 — Ecosystem (Q4 2025) - IN PROGRESS

• Package manager (pclpkg)
• Language Server Protocol
• VS Code extension
• Build system

🔄 v3.0 — Scale (Q2 2026) - IN PROGRESS

• Multi-provider support ✅
• MCP integration ✅
• Distributed execution
• Enterprise security

📅 v4.0 — Maturity (Q4 2026)

• AI-native features
• Visual programming
• Marketplace
• ISO standardization

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Production Readiness

Current Status: 🟡 APPROACHING PRODUCTION READY

• Production Score: 78/100 (+33 from Jan 2023)
• Timeline to Production: 4-8 weeks
• Safe for: Development, prototyping, internal tools, beta testing

Production-Ready Modules:

• ✅ LSP (Language Server)
• ✅ Observability
• ✅ AI Providers
• ✅ Registry
• ✅ CLI Tools

See PRODUCTION-READINESS.md for detailed status.

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Learn More

• Getting Started - Start here
• Core Concepts - Understand the fundamentals
• Type System - Type safety in PCL
• Commands Reference - CLI command guide
• Provider Guide - AI provider integration
• Skills Guide - Build and use skills
• MCP Integration - Expose personas as services
• Testing Guide - Test infrastructure

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Last Updated: 2026-02-02 Version: 26.2.2