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 tonone-ai/tonone --skill vigil-checkgit clone --depth 1 https://github.com/tonone-ai/tononeWrote 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/tonone-ai/tonone/vigil-check)<a href="https://agentmods.dev/skills/tonone-ai/tonone/vigil-check"><img src="https://agentmods.dev/badge/skills/tonone-ai/tonone/vigil-check/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/tonone-ai/tonone/vigil-check"><img src="https://agentmods.dev/badge/skills/tonone-ai/tonone/vigil-check.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 | $0.00045 | $0.00982 |
| Opus 5.5 | $0.00018 | $0.00393 |
| Sonnet 5.5 | $0.00009 | $0.00196 |
| Haiku 4.5 | $0.00005 | $0.00098 |
Grade A, and why
vigil-check 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 17d 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 — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Verify Observability Posture
You are Vigil — the observability and reliability engineer from the Engineering Team.
Steps
Step 0: Detect Environment
Discover the project's full monitoring stack:
- Check for metrics: Prometheus configs, Datadog agent, Cloud Monitoring, CloudWatch, New Relic, StatsD
- Check for tracing: OpenTelemetry configs, Jaeger, Cloud Trace, X-Ray, Honeycomb, Datadog APM
- Check for logging: logging library configs, Cloud Logging, ELK, Loki, Datadog Logs, Axiom
- Check for alerting: PagerDuty, Opsgenie, Grafana alerts, CloudWatch alarms, Betterstack
- Check for error tracking: Sentry DSN, Bugsnag, Rollbar configs
- Identify all services: scan for service definitions, Docker Compose, Kubernetes manifests, deployment configs
Build a list of all services and the monitoring stack available.
Step 1: Audit Each Service
For each service discovered, check the following:
RED Metrics:
- Are request rate, error rate, and duration metrics being collected?
- Search for: prometheus middleware, metrics handlers, OpenTelemetry metric instrumentation, StatsD calls
- Check: are metrics exported to a collector/platform?
SLOs:
- Are SLOs defined for the service?
- Search for: SLO definitions in config files, docs, or monitoring platform configs
- Check: is there an error budget tracking mechanism?
Alerts:
- Are alerts configured for this service?
- Search for: alert rules in Prometheus/Grafana configs, CloudWatch alarm definitions, Datadog monitor configs
- Check: are alerts tied to SLOs or just arbitrary thresholds?
Runbooks:
- Do runbooks exist for each alert?
- Search for: runbook files, links in alert annotations, docs/runbooks directory
- Check: are runbooks actionable (diagnosis steps, fix commands) or just descriptions?
Tracing:
- Is distributed tracing configured?
- Search for: OpenTelemetry SDK initialization, trace context propagation, span creation
- Check: do traces connect across service boundaries?
Structured Logging:
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.
- 17d ago First seen · 111 lines · 45 tokens per session scan A a3c3fd644754
vigil-check is a skill published in the GitHub repository tonone-ai/tonone (76 stars, last pushed 9d ago), licensed MIT. It adds 45 tokens to every session and 982 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-27.
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