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cost-export

Deployment & operations

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Updated 10-15 14:13

About this skill

Cost Export

Pulls every session-* and budget-config-* record from cost-tracking and emits in formats consumable by external observability systems. Without this, cost data lives only inside the AgentDB namespace; with it, the same data lights up dashboards.

When to use

  • After any cost-track run, to refresh metrics for Grafana / Datadog / Prometheus.
  • Cron-friendly via /loop 5m to keep external dashboards near-real-time.
  • One-shot to a webhook for ad-hoc reporting (Slack, custom endpoint).

Steps

  1. Pick a format — textfile collector for Prometheus / Grafana, or webhook POST for everything else:

    # Prometheus node_exporter textfile collector
node plugins/ruflo-cost-tracker/scripts/export.mjs --prometheus /var/lib/node_exporter/textfile_collector/cost_tracker.prom
Webhook (POSTs JSON; add auth via env)

EXPORT_WEBHOOK_HEADER='Authorization: Bearer $TOKEN'
node plugins/ruflo-cost-tracker/scripts/export.mjs --webhook https://hooks.example.com/cost-tracker

Stdout JSON (default if no flag)

node plugins/ruflo-cost-tracker/scripts/export.mjs


2. **Inspect what's emitted** — Prometheus output includes:

cost_tracker_total_usd cost_tracker_tier_total_usd{tier="opus|sonnet|haiku"} cost_tracker_session_total_usd{session="<8-char>"} cost_tracker_session_messages{session="<8-char>"} cost_tracker_budget_usd (if budget configured) cost_tracker_budget_utilization (spent / budget)


3. **Webhook payload shape** — the JSON the webhook receives matches the stdout JSON: `{ exportedAt, sessions: [...], budget, totalUsd, byTier }`. Headers may be added via `EXPORT_WEBHOOK_HEADER='K1: V1, K2: V2'` (comma-separated).

## Env overrides

| Env | Default | Purpose |
|---|---|---|
| `EXPORT_NAMESPACE` | `cost-tracking` | Override target namespace |
| `EXPORT_WEBHOOK_HEADER` | unset | Comma-separated `K: V` pairs for webhook auth |
| `EXPORT_QUIET=1` | unset | Suppress non-error confirmation output |

## Cross-references

- `cost-track` — produces the data this skill exports
- `cost-budget-check` — the same `cost_tracker_budget_*` metrics are alertable in Prometheus
- node_exporter textfile collector docs (Prometheus convention) — drop the `.prom` file in the collector directory and Prometheus picks it up