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 sawrus/agent-guides --skill observability-setupgit clone --depth 1 https://github.com/sawrus/agent-guidesWrote 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/sawrus/agent-guides/observability-setup)<a href="https://agentmods.dev/skills/sawrus/agent-guides/observability-setup"><img src="https://agentmods.dev/badge/skills/sawrus/agent-guides/observability-setup/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/sawrus/agent-guides/observability-setup"><img src="https://agentmods.dev/badge/skills/sawrus/agent-guides/observability-setup.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 | $0.00000 | $0.00355 |
| Opus 5 | $0.00000 | $0.00178 |
| Sonnet 5 | $0.00000 | $0.00071 |
| Haiku 4.5 | $0.00000 | $0.00036 |
Grade A, and why
observability-setup 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 6d 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.
What it actually says
Skill: Observability Setup
When to load
When setting up monitoring for a new service, configuring alerts, debugging production issues.
Golden Signals (Mandatory)
Every service must expose:
- Latency: p50, p95, p99 response times
- Traffic: requests per second
- Errors: 4xx/5xx rate
- Saturation: CPU %, memory %, queue depth
Prometheus Alert Rules
groups:
- name: api-alerts
rules:
- alert: HighErrorRate
expr: |
sum(rate(http_requests_total{status=~"5.."}[5m]))
/ sum(rate(http_requests_total[5m])) > 0.01
for: 2m
labels: { severity: critical }
annotations:
summary: "Error rate > 1% for 2 minutes"
runbook: "https://runbooks.internal/high-error-rate"
- alert: HighLatency
expr: histogram_quantile(0.99, rate(http_request_duration_seconds_bucket[5m])) > 2
for: 5m
labels: { severity: warning }
Structured Logging Contract
{
"timestamp": "2026-02-16T10:30:00Z",
"level": "ERROR",
"service": "payments-api",
"trace_id": "abc123",
"message": "Payment processing failed",
"error": { "type": "PaymentGatewayError", "code": "CARD_DECLINED" },
"duration_ms": 1240
}
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.
- 6d ago First seen · 50 lines · 0 tokens per session scan A 2d51f934fbff
observability-setup is a skill published in the GitHub repository sawrus/agent-guides (17 stars, last pushed 10d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 355 tokens. 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 2026-09-03.
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