Praison AI

Context Engineering Agent

AI-powered codebase analysis and PRP (Product Requirements Prompt) generation for first-try implementation success

Analyse a codebase and generate a Product Requirements Prompt (PRP) for first-try implementation success with the ContextAgent.

python
from praisonaiagents import create_context_agent

agent = create_context_agent(llm="gpt-4o-mini", name="Context Engineering Specialist")

analysis = agent.analyze_codebase("/path/to/project")
prp = agent.generate_prp(feature_request="Add user authentication with JWT", context_analysis=analysis)
Diagram

Context Agent

📋 Feature Request

🤖 ContextAgent

🧠 Codebase Analysis

✅ PRP + Blueprint

The ContextAgent is a specialized agent for Context Engineering – comprehensive codebase analysis and Product Requirements Prompt (PRP) generation.

Quick Start

  1. Simple Usage

    Create the agent and analyse a project.

    python
    from praisonaiagents import create_context_agent

agent = create_context_agent(
    llm="gpt-4o-mini",
    name="Context Engineering Specialist",
)

analysis = agent.analyze_codebase("/path/to/project")
  2. With PRP Generation

    Turn a feature request into an implementation prompt.

    python
    from praisonaiagents import create_context_agent

agent = create_context_agent(llm="gpt-4o-mini")

analysis = agent.analyze_codebase("/path/to/project")
prp = agent.generate_prp(
    feature_request="Add user authentication with JWT",
    context_analysis=analysis,
)
blueprint = agent.create_implementation_blueprint("JWT auth", analysis)

How It Works

Diagram
CodebaseContextAgentUserCodebaseContextAgentUseranalyze_codebase(project_path)Scan structure, AST, patternsConventions and architecturegenerate_prp(feature_request)PRP + implementation blueprint

Key Features

FeatureDescription
Codebase AnalysisAnalyze project structure, patterns, conventions
AST AnalysisExtract classes, functions, imports from Python
Pattern ExtractionIdentify code patterns and architecture
PRP GenerationCreate comprehensive implementation guidance
Validation FrameworkDefine success criteria and quality gates
Implementation BlueprintStep-by-step implementation plan
GitHub IntegrationAnalyze GitHub repositories directly

API Reference

Core Methods

python
# Protocol-compatible methods (recommended)
analysis = agent.analyze_codebase("/path/to/project")
prp = agent.generate_prp("Feature description", analysis)
blueprint = agent.create_implementation_blueprint("Feature", analysis)

# Original methods (still available)
analysis = agent.analyze_codebase_with_gitingest("/path/to/project")
prp = agent.generate_comprehensive_prp("Feature description", analysis)
blueprint = agent.build_implementation_blueprint("Feature description", analysis)

Async Methods

python
# Async versions for non-blocking execution
analysis = await agent.aanalyze_codebase("/path/to/project")
prp = await agent.agenerate_prp("Feature description", analysis)
blueprint = await agent.acreate_implementation_blueprint("Feature", analysis)

Configurable Output

Control output using the output= parameter (inherited from Agent):

python
# Silent mode - suppress all progress output
agent = create_context_agent(llm="gpt-4o-mini", output="silent")

# Verbose mode - show rich output with progress
agent = create_context_agent(llm="gpt-4o-mini", output="verbose")

# Actions mode - show actions/steps only
agent = create_context_agent(llm="gpt-4o-mini", output="actions")

# Default is silent (no output)
agent = create_context_agent(llm="gpt-4o-mini")

Protocol Compliance

ContextAgent implements ContextEngineerProtocol:

python
from praisonaiagents.agent import ContextEngineerProtocol

# Check protocol compliance
assert isinstance(agent, ContextEngineerProtocol)

GitHub Analysis

python
# Analyze GitHub repository
result = agent.start("https://github.com/user/repo Goal: Add authentication")

Multi-Agent Workflow

python
from praisonaiagents import Agent, Task, AgentTeam, create_context_agent

# Create context engineer
context_engineer = create_context_agent(llm="gpt-4o-mini")

# Analyze codebase
analysis = context_engineer.analyze_codebase("/path/to/project")

# Create implementation agent with context
developer = Agent(
    name="Developer",
    instructions=f"""
    Implement features following these patterns:
    {analysis}
    """
)

# Create workflow
agents = AgentTeam(agents=[developer], tasks=[...])

Output Directory

Context Engineering outputs are saved to .praison/prp/:

.praison/prp/
├── agent_responses/      # Individual agent responses
├── markdown_outputs/     # Formatted markdown reports
├── debug_logs/           # Debug logs (if enabled)
└── final_results/        # Final PRP and blueprints

Context Engineering vs Context Window Management

ContextAgent (Context Engineering)context=ContextConfig (Context Window)
Codebase analysisToken budgeting
PRP generationAuto-compaction
Pattern extractionSession tracking
Implementation blueprintsMulti-memory aggregation
Validation frameworksOverflow detection

Best Practices

Analyse once, reuse the analysis

analyze_codebase is the expensive step. Cache its result and pass it into generate_prp and create_implementation_blueprint rather than re-scanning for each call.

Scope file patterns to what matters

Pass file_patterns=["*.py"] (or your language) so the agent focuses on relevant source instead of walking test fixtures and generated files.

Feed the PRP to an implementation agent

The generated PRP is designed to prime another agent. Hand it to a Developer agent’s instructions for higher first-try success.

Don't confuse it with ContextConfig

This agent engineers implementation context. For token budgeting and compaction inside a run, use context=ContextConfig() instead — they solve different problems.

Related

Card

Implement the PRP with the sandboxed CodeAgent.

 Card

Token budgeting and context-window compaction.