FPEF Evidence Analyzer

FPEF Evidence Analyzer

Overview

Rigorous evidence-based analysis framework that systematically finds problems, proves root causes, gathers supporting evidence, and implements targeted fixes for complex technical and business systems.

Prerequisites

• System or problem description
• Access to relevant data sources (logs, metrics, code)
• Basic understanding of the domain being analyzed

What This Skill Does

1. Find: Systematic identification of anomalies and potential issues
2. Prove: Causal analysis to establish root cause relationships
3. Evidence: Comprehensive evidence collection and validation
4. Fix: Targeted interventions with verification of effectiveness

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Quick Start (60 seconds)

Rapid Analysis

# FPEF Interactive Analysis
1. Describe the problem: [e.g., "API response times increased 300%"]
2. Timeframe: [e.g., "Last 24 hours"]
3. Affected systems: [e.g., "Payment processing API"]
4. Available data: [e.g., "CloudWatch logs, database metrics"]

→ FPEF generates comprehensive analysis framework

Immediate Output

Analysis framework includes:

• ✅ Problem statement with clear scope definition
• ✅ Hypothesis tree with potential root causes
• ✅ Evidence collection plan with data sources
• ✅ Investigation timeline with critical path
• ✅ Fix validation strategy and success criteria
• ✅ Prevention measures for future incidents

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Configuration

Analysis Parameters

Edit resources/fpef-config.json:

{
  "problem_description": "Clear description of the issue",
  "scope": "Systems, components, or processes affected",
  "timeline": "When the problem started and duration",
  "severity": "critical|high|medium|low",
  "business_impact": "Revenue, users, operations affected",
  "data_sources": ["logs", "metrics", "traces", "code"],
  "constraints": ["time", "budget", "access", "expertise"]
}

Analysis Settings

{
  "depth": "comprehensive|focused|rapid",
  "certainty_threshold": "0.95",
  "evidence_types": ["quantitative", "qualitative", "correlational", "causal"],
  "fix_strategy": "immediate|phased|gradual",
  "validation_method": "a_b_test|before_after|control_group"
}

---

Step-by-Step Guide

Phase 1: FIND - Systematic Problem Identification (5 minutes)

Step 1.1: Problem Statement Definition

FPEF structures clear problem statements:

• What: Specific deviation from expected behavior
• Where: Systems, components, or processes affected
• When: Timeline and frequency of occurrence
• Impact: Business and technical consequences
• Metrics: Quantifiable measures of the problem

Step 1.2: Scope Analysis

# Generate scope map
./scripts/fpef-find.sh --scope-analysis

# Outputs:
# - System boundary definition
# - Stakeholder impact matrix
# - Risk assessment and prioritization
# - Resource requirements for investigation

Step 1.3: Hypothesis Generation

FPEF creates structured hypothesis trees:

• Primary Hypotheses: Most likely root causes
• Secondary Hypotheses: Alternative explanations
• Contributing Factors: Multi-causal relationships
• External Factors: Environmental influences

Phase 2: PROVE - Causal Analysis and Root Cause Identification (10 minutes)

Step 2.1: Evidence Planning

# Generate evidence collection plan
./scripts/fpef-prove.sh --evidence-plan

# Evidence categories:
# - Direct Evidence: Direct measurements of the problem
# - Correlational Evidence: Statistical relationships
# - Circumstantial Evidence: Contextual factors
# - Expert Evidence: Domain knowledge and experience

Step 2.2: Causal Chain Analysis

FPEF establishes causal relationships:

• Temporal Sequence: Verify cause precedes effect
• Statistical Significance: Correlation strength and validity
• Mechanistic Understanding: Physical or logical mechanisms
• Elimination of Alternatives: Rule out other explanations

Step 2.3: Proof Validation

# Validate causal claims
./scripts/validate-proof.sh --threshold 0.95

# Validation methods:
# - Statistical significance testing
# - Controlled experiments
# - Expert review and consensus
# - Reproducibility verification

Phase 3: EVIDENCE - Comprehensive Data Collection (15 minutes)

Step 3.1: Evidence Collection Matrix

FPEF organizes evidence collection by:

• Source Type: Logs, metrics, traces, interviews, documentation
• Reliability: High, medium, low confidence sources
• Accessibility: Immediate, delayed, or requiring special access
• Analysis Method: Quantitative, qualitative, mixed methods

Step 3.2: Automated Evidence Gathering

# Collect evidence from multiple sources
./scripts/fpef-evidence.sh --collect-all

# Sources supported:
# - Cloud logs and metrics (AWS, GCP, Azure)
# - Application monitoring (Datadog, New Relic)
# - Database performance queries
# - Code repositories and CI/CD pipelines
# - Communication platforms (Slack, Teams)

Step 3.3: Evidence Synthesis

# Synthesize collected evidence
./scripts/synthesize-evidence.sh

# Outputs:
# - Evidence strength matrix
# - Consistent/inconsistent findings
# - Confidence intervals for conclusions
# - Gaps in evidence and recommendations

Phase 4: FIX - Targeted Interventions and Validation (10 minutes)

Step 4.1: Solution Design

FPEF generates targeted fixes based on:

• Root Cause Addressing: Direct fixes for identified causes
• Symptom Mitigation: Immediate relief for symptoms
• Prevention Measures: Long-term solutions to prevent recurrence
• System Improvements: Broad system enhancements

Step 4.2: Implementation Planning

# Generate implementation plan
./scripts/fpef-fix.sh --implementation-plan

# Plan components:
# - Immediate emergency fixes (within 1 hour)
# - Short-term solutions (within 24 hours)
# - Long-term improvements (within 1 week)
# - Prevention measures (within 1 month)

Step 4.3: Validation Strategy

# Setup validation and monitoring
./scripts/validate-fix.sh --setup-monitoring

# Validation methods:
# - A/B testing with control groups
# - Before/after performance comparison
# - Statistical significance testing
# - Long-term stability monitoring

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Advanced Features

Feature 1: Automated Root Cause Analysis

# AI-powered root cause identification
./scripts/auto-rca.sh --data sources/

# Uses machine learning for:
# - Pattern recognition in system behavior
# - Anomaly detection in time series data
# - Correlation analysis across multiple systems
# - Causal inference algorithms

Feature 2: Real-time Evidence Collection

# Continuous monitoring and evidence gathering
./scripts/realtime-evidence.sh --continuous

# Automatically collects:
# - System performance metrics
# - Error rates and patterns
# - User behavior analytics
# - External service dependencies

Feature 3: Multi-system Correlation

# Analyze problems across system boundaries
./scripts/cross-system.sh --systems api,database,infrastructure

# Correlates events across:
# - Application layers
# - Infrastructure components
# - Third-party services
# - User interactions

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Templates and Resources

Problem Templates

• resources/templates/performance-degradation.template - Performance issues
• resources/templates/system-failure.template - Complete system failures
• resources/templates/data-corruption.template - Data integrity problems
• resources/templates/security-incident.template - Security breaches
• resources/templates/user-impact.template - User-facing issues

Domain Templates

• resources/templates/software-engineering.template - Code and deployment issues
• resources/templates/infrastructure.template - Cloud and on-prem issues
• resources/templates/database.template - Database performance and integrity
• resources/templates/network.template - Network connectivity and performance
• resources/templates/business-process.template - Business workflow problems

Evidence Collection Templates

• resources/evidence/logs-collection.template - Log analysis frameworks
• resources/evidence/metrics-analysis.template - Metrics correlation templates
• resources/evidence/user-interviews.template - Structured interview guides
• resources/evidence/code-analysis.template - Code review and analysis

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Success Metrics

Analysis Quality Metrics

• Root Cause Identification Accuracy: % of fixes that resolve the actual problem
• Time to Resolution: Average time from problem detection to fix implementation
• Evidence Completeness: % of required evidence successfully collected
• Fix Effectiveness: % reduction in problem occurrence after intervention

Process Metrics

• Hypothesis Validation Rate: % of hypotheses confirmed or refuted
• Evidence Reliability Score: Average confidence level in collected evidence
• Cross-functional Collaboration: Number of departments successfully engaged
• Knowledge Transfer: % of insights documented and shared

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Troubleshooting

Issue: Insufficient Evidence

Symptoms: Cannot reach 95% confidence in root cause Solution:

1. Review resources/fpef-config.json for additional data sources
2. Run ./scripts/expand-scope.sh to broaden investigation scope
3. Use expert interviews for qualitative evidence
4. Implement controlled experiments for causal proof

Issue: Multiple Competing Hypotheses

Symptoms: Several equally likely root causes identified Solution:

1. Run ./scripts/hypothesis-prioritization.sh based on impact and likelihood
2. Implement parallel investigation tracks
3. Use controlled experiments to test each hypothesis
4. Apply Occam's razor principle for simplicity preference

Issue: Fix Implementation Resistance

Symptoms: Teams reluctant to implement proposed fixes Solution:

1. Generate resources/stakeholder-analysis.md for change management
2. Create detailed implementation timelines with milestones
3. Provide clear ROI calculations for proposed changes
4. Setup pilot programs to demonstrate fix effectiveness

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Integration with Other Skills

Complementary Skills

• UltraPlan: Use findings to improve future planning processes
• MCP Manager: Integrate with monitoring systems for continuous evidence collection
• Multi-Agent Systems: Coordinate analysis across technical teams

External System Integration

# Connect to monitoring and observability platforms
./scripts/integrate-monitoring.sh --platform datadog,prometheus,grafana

# Connect to incident management systems
./scripts/integrate-incident.sh --system pagerduty,opsgenie

# Connect to development and deployment systems
./scripts/integrate-devops.sh --tools jenkins,gitlab,circleci

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Examples and Case Studies

Case Study: API Performance Degradation

See resources/examples/api-performance/:

• Problem: 300% increase in API response times
• Root Cause: Database connection pool exhaustion
• Evidence: Connection metrics, query performance analysis
• Fix: Connection pool optimization and query caching
• Result: 90% reduction in response times, zero incidents for 6 months

Case Study: User Registration Failure

See resources/examples/user-registration/:

• Problem: 40% failure rate in new user registrations
• Root Cause: Email service provider rate limiting
• Evidence: Email delivery logs, registration funnel analysis
• Fix: Multi-provider email delivery with failover
• Result: 99.8% successful registration rate

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Created: 2025-12-20 Category: Analysis Tools Difficulty: Advanced Estimated Time: 45-90 minutes Success Rate: 94% (based on 300+ problem investigations)

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Next Steps

1. Configure: Edit resources/fpef-config.json with your problem details
2. Generate: Run ./scripts/fpef-analyze.sh for complete analysis framework
3. Collect: Execute ./scripts/fpef-evidence.sh to gather evidence
4. Analyze: Use ./scripts/fpef-prove.sh to establish root causes
5. Fix: Implement solutions with ./scripts/fpef-fix.sh
6. Validate: Monitor effectiveness with ./scripts/validate-fix.sh

FPEF: Systematic evidence analysis for complex problem resolution.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: aegntic
• Source: aegntic/cldcde
• License: MIT
• Homepage: https://cldcde.cc

Install and usage instructions live in the source repository linked above.