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posthog_event_volume posthog_event_volume_mvp_v1

Event-volume SaaS

Analytics or observability SaaS priced by ingested volume. Source connections and custom events drive positive signals; stale sources are negatives.

Value metric

Events tracked, data points ingested, log lines

Success event

custom_event_tracked

entity_type: account

Scale

  • 320 accounts
  • 4 users/account (mean)
  • 10 sessions/user (mean)
  • 30 days of history

Research metrics proxied

  • — Ingestion volume trend
  • — Event-type diversity
  • — New-source activation rate

Signal paths

Positive paths end in custom_event_tracked. Negative paths do not. Every generated event_id belonging to a path is recorded in ground_truth.json.

Positive signals (2)

source_to_custom_event ×75
source_connected → $pageview → custom_event_tracked
cohorts: high_intent, medium_intent, power_user
schema_then_custom_event ×40
schema_changed → custom_event_tracked
cohorts: high_intent, medium_intent

Negative signals (2)

source_pageview_only ×65
source_connected → $pageview
cohorts: medium_intent, low_intent, lurker
repeated_schema_changes ×30
schema_changed → schema_changed
cohorts: low_intent, noisy_bot_like

Generate this dataset

Config file: configs/posthog_event_volume_mvp.yaml

Quickstart 
# Dockerized Postgres (recommended for inspection)
docker compose up -d

uv run dryfit \
  -c configs/posthog_event_volume_mvp.yaml \
  --dsn postgresql://dryfit_writer:dryfit_writer@127.0.0.1:54329/dryfit \
  --print-summary

# Or local Postgres
./scripts/generate-local -c configs/posthog_event_volume_mvp.yaml --print-summary

Full setup instructions are in the repo's README — including local Postgres, Grafana inspection, and dataset restore.

Noise parameters

DryFit injects realistic noise on top of the generated signal paths. These probabilities are per-event. Noise never touches rows referenced by ground_truth.json — your scoring logic can trust the truth file is exact.

missing event probability
5.0%
duplicate event probability
2.0%
out of order probability
3.0%
null property probability
3.0%
anonymous actor probability
1.0%
weird property probability
2.0%

Other scenarios

Combined coverage (all models)

→ upgrade_clicked

Union of event types across all business models

Contact / record-based SaaS

→ contact_created

Contacts, leads, subscribers, accounts managed

Credits / token-based

→ credits_purchased

Credits consumed, tokens used, compute units

Feature-gated (tiered) SaaS

→ upgrade_clicked

Plan tier / feature access level
Browse all scenarios →

Benchmark your detector against Event-volume SaaS

Clone the repo, run the config, check your agent's output against ground_truth.json.

View on GitHub