Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add rudderlabs/rudder-agent-skills --skill rudder-tracking-plansgit clone --depth 1 https://github.com/rudderlabs/rudder-agent-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/rudderlabs/rudder-agent-skills/rudder-tracking-plans)<a href="https://agentmods.dev/skills/rudderlabs/rudder-agent-skills/rudder-tracking-plans"><img src="https://agentmods.dev/badge/skills/rudderlabs/rudder-agent-skills/rudder-tracking-plans/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/rudderlabs/rudder-agent-skills/rudder-tracking-plans"><img src="https://agentmods.dev/badge/skills/rudderlabs/rudder-agent-skills/rudder-tracking-plans.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00035 | $0.01683 |
| Opus 5 | $0.00017 | $0.00842 |
| Sonnet 5 | $0.00007 | $0.00337 |
| Haiku 4.5 | $0.00003 | $0.00168 |
Grade A, and why
rudder-tracking-plans scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 271 lines — stays where its author put it; the contents beside it link to each section on GitHub.
RudderStack Tracking Plans Management
This skill teaches how to assemble events into tracking plans - contracts that define which events a source can send and what properties each event must have.
What is a Tracking Plan?
A tracking plan is a schema that:
- Defines which events are allowed from a source
- Specifies required vs optional properties for each event
- Enables validation at event ingestion time
- Provides governance over what data enters your warehouse
┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐
│ Source │────▶│ Tracking Plan │────▶│ Destination │
│ (Web App SDK) │ │ (Validator) │ │ (Warehouse) │
└─────────────────┘ └─────────────────┘ └─────────────────┘
│
Validates events
against schema
YAML Schema
Basic Tracking Plan
version: "rudder/v1"
kind: "tracking-plan"
metadata:
name: "tracking-plans"
spec:
name: "Web App Tracking Plan"
description: "Events for the main e-commerce web application"
events:
- event: "urn:rudder:event/product-viewed"
- event: "urn:rudder:event/product-added-to-cart"
- event: "urn:rudder:event/order-completed"
Tracking Plan with Rule Overrides
Override event-level rules at the tracking plan level:
version: "rudder/v1"
kind: "tracking-plan"
metadata:
name: "tracking-plans"
spec:
name: "Mobile App Tracking Plan"
description: "Events for iOS and Android apps"
events:
- event: "urn:rudder:event/product-viewed"
rules:
# Make session_id required for mobile (optional in event definition)
- property: "urn:rudder:property/session_id"
required: true
# Make device_id required for mobile attribution
- property: "urn:rudder:property/device_id"
required: true
- event: "urn:rudder:event/product-added-to-cart"
- event: "urn:rudder:event/order-completed"
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 12d ago First seen · 271 lines · 35 tokens per session scan A 41d3ac9ad2c4
rudder-tracking-plans is a skill published in the GitHub repository rudderlabs/rudder-agent-skills (18 stars, last pushed 8d ago), licensed MIT. It adds 35 tokens to every session and 1,683 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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