05_feature_discovery

Feature Discovery

Capture metadata to inform alerting, monitoring, and discovery.

https://docs.chalk.ai/docs/feature-discovery

1. Descriptions

Describe features at a feature class or feature level.

1_descriptions.py

@features
class RocketLaunch:
    # Feature descriptions are parsed from your code!
    launched_at: datetime

https://docs.chalk.ai/docs/feature-discovery#description

2. Owners

Assign owners to features for monitoring and alerting.

2_owners.py

@features(owner="default-owner@gmail.com")
class RocketLaunch:
    # :owner: specific-owner@gmail.com
    launched_at: datetime

https://docs.chalk.ai/docs/feature-discovery#owner

3. Tags

Tag related features.

3_tags.py

@features(tags="group:risk")
class RiskReport:
    id: str
    risk_score: str
    # :tags: pii
    first_name: str

https://docs.chalk.ai/docs/feature-discovery#tags

4. Tags & Owners

Assigning tags & owners to features.

4_unified.py

@features(owner="shuttle@nasa.gov", tags="group:rocketry")
class SpaceShuttle:
    # The volume of this shuttle in square meters.
    # :owner: architecture@nasa.gov
    # :tags: zillow-fact, size
    volume: str

assert tags(SpaceShuttle.volume) == ["zillow-fact", "size", "group:rocketry"]