markback 0.1.3

A compact, human-writable format for storing content paired with feedback/labels

MarkBack

A compact, human-writable format for storing content paired with feedback/labels.

Installation

pip install -e .

Quick Start

Parse a MarkBack file

from markback import parse_file, parse_string

# Parse a file
result = parse_file("labels.mb")
for record in result.records:
    print(f"{record.uri}: {record.feedback}")

# Parse a string
text = """
@uri local:example

Some content here.
<<< positive; good quality
"""
result = parse_string(text)

Write MarkBack files

from markback import Record, SourceRef, write_file, OutputMode

records = [
    Record(feedback="good", uri="local:1", content="First item"),
    Record(feedback="bad", uri="local:2", content="Second item"),
]

# Write multi-record file
write_file("output.mb", records, mode=OutputMode.MULTI)

# Write compact label list
write_file("labels.mb", records, mode=OutputMode.COMPACT)

Lint files

from markback import lint_file

result = lint_file("myfile.mb")
if result.has_errors:
    for d in result.diagnostics:
        print(d)

CLI Usage

Initialize configuration

markback init

Creates a .env file with all configuration options.

Lint files

# Lint a single file
markback lint myfile.mb

# Lint a directory
markback lint ./data/

# JSON output
markback lint myfile.mb --json

Normalize to canonical format

# Output to stdout
markback normalize input.mb

# Output to file
markback normalize input.mb output.mb

# In-place normalization
markback normalize input.mb --in-place

List records

markback list myfile.mb
markback list ./data/ --json

Convert between formats

# Convert to multi-record format
markback convert input.mb output.mb --to multi

# Convert to compact label list
markback convert input.mb output.mb --to compact

# Convert to paired files
markback convert input.mb ./output_dir/ --to paired

Run LLM workflow

# Run editor/operator workflow
markback workflow run dataset.mb --prompt "Initial prompt" --output results.json

# View evaluation results
markback workflow evaluate results.json

# Extract refined prompt
markback workflow prompt results.json --output refined_prompt.txt

File Formats

Single Record

@uri local:example

Content goes here.
<<< positive; quality=high

Multi-Record

@uri local:item-1

First content.
<<< good

---
@uri local:item-2

Second content.
<<< bad; needs improvement

Compact Label List

@source ./images/001.jpg <<< approved; scene=beach
@source ./images/002.jpg <<< rejected; too dark
@source ./images/003.jpg <<< approved; scene=mountain

With Prior Reference

Use @prior to reference an item that precedes the source (e.g., a prompt that generated an image):

@uri local:generated-001
@prior ./prompts/sunset-prompt.txt
@source ./images/generated-sunset.jpg <<< accurate; matches prompt well

Paired Files

content.txt:

The actual content goes here.

content.label.txt:

@uri local:content-id
<<< approved; reviewer=alice

Configuration

Configuration is loaded from .env:

# File handling mode
FILE_MODE=git  # or "versioned"

# Label file discovery
LABEL_SUFFIXES=.label.txt,.feedback.txt,.mb

# Editor LLM
EDITOR_API_BASE=https://api.openai.com/v1
EDITOR_API_KEY=your-key
EDITOR_MODEL=gpt-4

# Operator LLM
OPERATOR_API_BASE=https://api.openai.com/v1
OPERATOR_API_KEY=your-key
OPERATOR_MODEL=gpt-4

Development

Run tests

pip install -e ".[dev]"
pytest

Run with coverage

pytest --cov=markback

License

MIT