Rag Evaluator

AI-powered RAG (Retrieval-Augmented Generation) evaluation toolkit. Configure, benchmark, compare, and optimize your RAG pipelines from the command line. Track prompts, evaluations, fine-tuning experiments, costs, and usage — all with persistent local logging and full export capabilities.

Commands

Run rag-evaluator <command> [args] to use.

Each domain command (configure, benchmark, compare, etc.) works in two modes:

• Without arguments: displays the most recent 20 entries from that category
• With arguments: logs the input with a timestamp and saves to the category log file

Data Storage

All data is stored locally in ~/.local/share/rag-evaluator/:

• Each command creates its own log file (e.g., configure.log, benchmark.log)
• A unified history.log tracks all activity across commands
• Entries are stored in timestamp|value pipe-delimited format
• Export supports JSON, CSV, and plain text formats

Requirements

• Bash 4+ with set -euo pipefail strict mode
• Standard Unix utilities: date, wc, du, tail, grep, sed, cat
• No external dependencies or API keys required

When to Use

1. Evaluating RAG pipeline quality — log evaluation scores, compare retrieval strategies, and track improvements over time
2. Benchmarking different configurations — run benchmarks across embedding models, chunk sizes, or retrieval methods and compare results side by side
3. Tracking costs and usage — monitor API costs and token usage across experiments to stay within budget
4. Managing prompt engineering — log prompt variations, test them against your pipeline, and analyze which templates perform best
5. Generating reports for stakeholders — export evaluation data as JSON/CSV for dashboards, or generate text reports summarizing RAG performance

Examples

# Configure a new evaluation run
rag-evaluator configure "model=gpt-4 chunks=512 overlap=50 top_k=5"

# Run a benchmark and log results
rag-evaluator benchmark "latency=230ms recall@5=0.82 precision@5=0.71"

# Compare two retrieval strategies
rag-evaluator compare "bm25 vs dense: bm25 recall=0.78, dense recall=0.85"

# Track evaluation scores
rag-evaluator evaluate "faithfulness=0.91 relevance=0.87 coherence=0.93"

# Log API cost for a run
rag-evaluator cost "run-042: $0.23 (1.2k tokens input, 800 tokens output)"

# View summary statistics
rag-evaluator stats

# Export all data as CSV
rag-evaluator export csv

# Search for specific entries
rag-evaluator search "gpt-4"

# Check recent activity
rag-evaluator recent

# Health check
rag-evaluator status

Output

All commands output to stdout. Redirect to a file if needed:

rag-evaluator report "weekly summary" > report.txt
rag-evaluator export json  # saves to ~/.local/share/rag-evaluator/export.json

Configuration

Set DATA_DIR by modifying the script, or use the default: ~/.local/share/rag-evaluator/

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