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 hoatv2211/GameStudio-CodexKIT --skill telemetry-event-contract-reviewgit clone --depth 1 https://github.com/hoatv2211/GameStudio-CodexKITWrote 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/hoatv2211/gamestudio-codexkit/telemetry-event-contract-review)<a href="https://agentmods.dev/skills/hoatv2211/gamestudio-codexkit/telemetry-event-contract-review"><img src="https://agentmods.dev/badge/skills/hoatv2211/gamestudio-codexkit/telemetry-event-contract-review/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/hoatv2211/gamestudio-codexkit/telemetry-event-contract-review"><img src="https://agentmods.dev/badge/skills/hoatv2211/gamestudio-codexkit/telemetry-event-contract-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00039 | $0.00793 |
| Opus 5 | $0.00019 | $0.00396 |
| Sonnet 5 | $0.00008 | $0.00159 |
| Haiku 4.5 | $0.00004 | $0.00079 |
Grade A, and why
telemetry-event-contract-review 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 10d 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 — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Telemetry Event Contract Review
Overview
Treat telemetry as a versioned producer-consumer contract so analytics changes remain compatible, privacy-aware, and testable.
When to use
Use for new events, renamed properties, type changes, required-field changes, client/server instrumentation, analytics migrations, and dashboard dependency reviews.
When NOT to use
Do not use to transmit live events, query production player data, deploy collectors, or approve privacy-sensitive collection without the responsible human reviewers.
Required inputs and context discovery
Collect baseline and proposed schemas, event IDs and names, property types and optionality, versions, producers, consumers, sampling, timestamps, identity fields, privacy classification, retention, consent rules, rollout, and deprecation window.
Safety and risk level
Read-only contract review. Unknown privacy classification, ambiguous identifiers, missing consent rules, or inaccessible consumer inventories are BLOCKED for approval.
Workflow
- Normalize event IDs, names, versions, properties, types, and optionality. Completion criterion: duplicate IDs and ambiguous aliases are explicit failures.
- Compare baseline and proposal for additive, breaking, and semantic changes. Completion criterion: every change has compatibility classification and affected versions.
- Trace producers, consumers, dashboards, experiments, and retention dependencies.
Completion criterion: unknown consumers are
BLOCKEDrather than assumed safe. - Review privacy classification, minimization, consent, sampling, and retention. Completion criterion: sensitive or unnecessary properties have an owner and disposition.
- Define rollout, dual-write or migration, validation, and deprecation evidence. Completion criterion: backward compatibility and rollback are testable before deployment.
Evidence and output contract
Produce telemetry-contract-review.json with normalized schemas, compatibility findings, producer-consumer impacts, privacy findings, rollout plan, validation cases, verdict, and limitations.
What ships with it
2 files 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.
- 10d ago First seen · 79 lines · 39 tokens per session scan A 885c76d00513
telemetry-event-contract-review is a skill published in the GitHub repository hoatv2211/GameStudio-CodexKIT (3 stars, last pushed 3d ago), licensed MIT. It adds 39 tokens to every session and 793 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 2026-08-31.
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