What is observability?

A set of rules for adding logs, measurements, and request traces to an application. Observability means collecting information that helps explain what software is doing, especially in production.

Use it when implementing structured logs, OpenTelemetry data, request-rate/error/latency measurements, and tracing across services or AI-agent workflows.

It makes failures and slow requests easier to investigate while requiring sensitive personal data and credentials to be hidden.

How rafaelghif/antigravity-agents configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to rafaelghif/antigravity-agents. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/rafaelghif/antigravity-agents/main/.agents/skills/observability/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/rafaelghif/antigravity-agents

Made for: Claude Code, Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/rafaelghif/antigravity-agents/observability/github.svg)](https://agentmods.dev/skills/rafaelghif/antigravity-agents/observability)

Your own site

<a href="https://agentmods.dev/skills/rafaelghif/antigravity-agents/observability"><img src="https://agentmods.dev/badge/skills/rafaelghif/antigravity-agents/observability/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/rafaelghif/antigravity-agents/observability"><img src="https://agentmods.dev/badge/skills/rafaelghif/antigravity-agents/observability.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 979 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00025	$0.00979
Opus 5.5	$0.00010	$0.00392
Sonnet 5.5	$0.00005	$0.00196
Haiku 4.5	$0.00003	$0.00098

Measured 1mo ago against content hash c5c5eda71bc0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

observability 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 1mo 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.

.agents/skills/observability/SKILL.md · 78 lines

How it starts

The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Observability, Telemetry & Distributed Tracing Protocol

Role: Staff Site Reliability & Observability Engineer.

Overview & Trigger Conditions

Activate this skill when implementing application logging, system metrics, distributed tracing, OpenTelemetry (OTel) instrumentation, service health checks, or agentic audit reporting.

Trigger Scenarios & Keywords:

Distributed tracing, structured logging, Prometheus metrics, OpenTelemetry, audit logs.
Keywords: logging, metrics, tracing, opentelemetry, otel, telemetry, monitor, alerting, grafana, prometheus, red method.

Core Standards & Invariants

OpenTelemetry (OTel) Standardization:
- Standardize strictly on OpenTelemetry SDKs and OTLP exporters for Logs, Metrics, and Tracing.
- Do NOT bind directly to proprietary, vendor-locked SDKs. Emit vendor-neutral OTLP data over gRPC/HTTP.
- Enforce distributed context propagation across HTTP/gRPC boundaries using standard W3C traceparent and tracestate headers.
Structured JSON Logging:
- All production logs MUST be serialized as structured JSON emitted to stdout/stderr. Arbitrary string concatenation is strictly prohibited.
- Mandatory JSON schema fields: timestamp (ISO-8601 UTC), level (DEBUG/INFO/WARN/ERROR/FATAL), message, service_name, trace_id, span_id, and context.
- Never leak raw stack traces or internal query strings to public error responses; correlate internally via trace_id.
RED Metrics Method (Rate, Errors, Duration):
- For every HTTP endpoint or RPC handler, expose:
  - Rate: Inbound requests per second (http_requests_total counter).
  - Errors: Number of failed requests partitioned by HTTP status code (5xx, 4xx).
  - Duration: Latency distributions using exponential histogram buckets (p50, p95, p99).
- Cardinality Protection: Never include unbounded identifiers (user IDs, emails, order IDs, timestamps) as Prometheus metric tag labels.

Read the full file on GitHub · 78 lines

Changes

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.

1mo ago Changed c5c5eda71bc0
2mo ago Changed ab5b266073d5
2mo ago Changed · +45 lines b7d91c68df22
2mo ago Changed · +7 lines 5f3d008a912c
2mo ago First seen · 26 lines · 25 tokens per session scan A 5c17305501fb

Subscribe to this mod's changes

observability is a skill published in the GitHub repository rafaelghif/antigravity-agents (5 stars, last pushed 1mo ago), licensed MIT. It adds 25 tokens to every session and 979 once invoked, about $0.0001 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 2026-08-31.

Analytics and metrics CI and CD agentic-workflow ai-agents antigravity mcp multi-agent-systems

observability next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
observabilityrafaelghif/antigravity-agents	Skill	5	1mo ago	MIT	A	25	Claude Code, Codex
cicdpageel/para-workspace	Skill	53	2mo ago	none	A	34	Claude Code, Codex
deployment-patternsmasrisystems/dot-agents	Skill	0	4d ago	none	A	41	Claude Code, Kiro
agent-workflow-automationruvnet/ruflo	Skill	81k	yesterday	MIT	A	21	Claude Code
Verification & Quality Assuranceruvnet/ruflo	Skill	81k	yesterday	MIT	A	36	Claude Code
ci-cd-and-automationaddyosmani/agent-skills	Skill	114k	5d ago	MIT	A	45	Claude Code
agent-github-modesruvnet/ruflo	Skill	81k	yesterday	MIT	A	21	Claude Code

antigravity-agents: Skill for Claude Code