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 nik-kale/sre-skills --skill observability-setupgit clone --depth 1 https://github.com/nik-kale/sre-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/nik-kale/sre-skills/observability-setup)<a href="https://agentmods.dev/skills/nik-kale/sre-skills/observability-setup"><img src="https://agentmods.dev/badge/skills/nik-kale/sre-skills/observability-setup.svg" alt="Measured on agentmods" 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 | $0.00041 | $0.02327 |
| Opus 5 | $0.00020 | $0.01163 |
| Sonnet 5 | $0.00008 | $0.00465 |
| Haiku 4.5 | $0.00004 | $0.00233 |
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 8d 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 — 414 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Observability Setup
Comprehensive guide to implementing the three pillars of observability.
When to Use This Skill
- Setting up monitoring for a new service
- Adding metrics instrumentation
- Implementing structured logging
- Setting up distributed tracing
- Designing dashboards
- Configuring alerts
The Three Pillars
| Pillar | What It Answers | Tools |
|---|---|---|
| Metrics | What is happening? (aggregated) | Prometheus, Datadog, CloudWatch |
| Logs | What happened? (detailed) | ELK, Loki, CloudWatch Logs |
| Traces | How did it happen? (flow) | Jaeger, Zipkin, X-Ray |
Metrics
Essential Metrics (Minimum Viable Observability)
Every service needs these metrics:
RED Method (Request-driven services)
Rate: requests_total (counter)
Errors: requests_failed_total (counter)
Duration: request_duration_seconds (histogram)
USE Method (Resources)
Utilization: resource_usage_percent (gauge)
Saturation: queue_depth (gauge)
Errors: resource_errors_total (counter)
Metric Types
| Type | Use For | Example |
|---|---|---|
| Counter | Cumulative values (only increase) | requests_total, errors_total |
| Gauge | Values that go up and down | connections_active, queue_size |
| Histogram | Distribution of values | request_duration_seconds |
| Summary | Pre-calculated percentiles | response_time (p50, p99) |
Prometheus Instrumentation
Python:
from prometheus_client import Counter, Histogram, start_http_server
# Define metrics
REQUEST_COUNT = Counter(
'http_requests_total',
'Total HTTP requests',
['method', 'endpoint', 'status']
)
REQUEST_LATENCY = Histogram(
'http_request_duration_seconds',
'HTTP request latency',
['method', 'endpoint'],
buckets=[.005, .01, .025, .05, .1, .25, .5, 1, 2.5, 5, 10]
)
# Use in request handler
@app.route('/api/users')
def get_users():
with REQUEST_LATENCY.labels(method='GET', endpoint='/api/users').time():
result = fetch_users()
REQUEST_COUNT.labels(method='GET', endpoint='/api/users', status='200').inc()
return result
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.
- 8d ago First seen · 414 lines · 41 tokens per session scan A 298ca8f98112
observability-setup is a skill published in the GitHub repository nik-kale/sre-skills (11 stars, last pushed 7mo ago), licensed MIT. It adds 41 tokens to every session and 2,327 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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