Event Taxonomy

The unique event definition identity is the combination of agent and event.

Naming rule

Use:

domain.subject.measure[.suffix]

Examples:

• tool.errors.count
• tool.calls.count
• task.duration_ms
• tokens.used
• heartbeat.missed.count
• market.bitcoin.price_usd
• sentiment.bitcoin.reddit.score

What not to do

Do not encode time windows into the event name.

Avoid:

• market.bitcoin.price_change_pct_1h
• tool.errors.last_hour
• reddit_sentiment_today

Those should be expressed in rollups, analytics windows, or policy logic.

Metadata guidance

Keep inspection context in meta:

• tool_name
• task_name
• workflow
• source
• query

Do not depend on meta as a first-class analytical filter in v1.