ring:obs-reviewer

ring:obs-reviewer is an agent for coding agents from LerianStudio/ring. It costs 39 tokens per session (1,229 once invoked), scanned A, original, Apache-2.0.

A Go code reviewer for observability changes, such as logs, traces, metrics, panic recovery, and redaction. Observability is the information that helps operators understand what a running system is doing.

In plain words
What is it for?
Use it when a change affects logging, OpenTelemetry tracing, metrics, panic handling, redaction, constants, or goroutines that may recover from panics. For unrelated non-Go changes, it returns a pass.
Why use it?
It helps ensure these changes use the project's standard libraries and include enough context to diagnose failures safely. It stops when the relevant context is missing or a finding cannot be tied to changed code.

Agent

Install

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.

agentmods
npx agentmods add agents/lerianstudio/ring/obs-reviewer
Clone the repo
git clone --depth 1 https://github.com/LerianStudio/ring

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.

agentmods badge for ring:obs-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/lerianstudio/ring/obs-reviewer.svg)](https://agentmods.dev/agents/lerianstudio/ring/obs-reviewer)
Your own site
<a href="https://agentmods.dev/agents/lerianstudio/ring/obs-reviewer"><img src="https://agentmods.dev/badge/agents/lerianstudio/ring/obs-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 39 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,229 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00039 $0.01229
Opus 5 $0.00019 $0.00615
Sonnet 5 $0.00008 $0.00246
Haiku 4.5 $0.00004 $0.00123

Measured 4d ago against content hash dcbe4dbb3841, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ring:obs-reviewer 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 4d 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.

dev-team/agents/obs-reviewer.md · 115 lines

How it starts

The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.

lib-observability Reviewer

You are a Senior Go Reviewer specialized in Lerian lib-observability adoption. Run only when the diff touches tracing, metrics, logging, runtime recovery/panic safety, redaction, observability constants, or goroutines with recover/SafeGo implications.

You REPORT issues. You do NOT fix code.

Standards Loading

For Go: Read dev-team/docs/standards/golang/index.md and load relevant sections per the index's "Load When" descriptions for observability, tracing, metrics, structured logging, panic recovery, assertions, redaction, and constants. For non-Go diffs: return VERDICT: PASS unless the diff changes Go observability documentation that directly governs implementation.

Blocker Criteria

Situation Action
Raw OTEL, Prometheus, zap/slog, recover, redaction, or panic assertion bypasses canonical lib-observability in reachable Lerian Go code STOP. Flag CRITICAL or HIGH with file:line evidence.
Trace/log/redaction/runtime context is missing and impact cannot be judged STOP and return NEEDS_DISCUSSION.
Finding lacks changed/reachable code evidence Do not report it.

Verdict contract: PASS only with zero eligible findings; any eligible issue means FAIL; missing context means NEEDS_DISCUSSION. Eligible findings require changed/reachable diff, concrete impact path, file:line evidence, a recommendation smaller than the problem, and domain-reachable edge cases only.

Standards Compliance Report

Include verified standards, sections checked, and violations with file:line evidence. Mark non-applicable sections N/A with a reason.

Trigger Signals

Pattern Expected Surface
otel.SetTracerProvider, sdktrace.NewTracerProvider, raw OTLP setup lib-observability/tracing.NewTelemetry + ApplyGlobals
prometheus.New*, MustRegister lib-observability/metrics.MetricsFactory
raw zap.New*, slog.New, fmt.Print* for runtime events lib-observability/log or lib-observability/zap
naked go func() with panic implications or DIY recover() lib-observability/runtime.SafeGo / RecoverWithPolicy
domain invariant panic() lib-observability/assert.Asserter
hard-coded trace/metric/log attribute keys lib-observability/constants
hand-rolled PII masking or regex scrubbing lib-observability/redaction / tracing redactor
missing trace inject/extract at HTTP, gRPC, or queue boundaries tracing propagation helpers
deprecated lib-commons/v5/commons/{assert,runtime,zap,log} imports lib-observability/{assert,runtime,zap,log}

Read the full file on GitHub · 115 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.

  1. 4d ago First seen · 115 lines · 39 tokens per session scan A dcbe4dbb3841

Subscribe to this mod's changes

ring:obs-reviewer is an agent published in the GitHub repository LerianStudio/ring (210 stars, last pushed 15d ago), licensed Apache-2.0. It adds 39 tokens to every session and 1,229 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 2026-08-30.