instrumentation-advisor

instrumentation-advisor is an agent for coding agents from honeycombio/agent-skill. It costs 401 tokens per session (1,920 once invoked), scanned A, original, MIT.

An agent that compares an application's code with the data Honeycomb currently receives. Honeycomb is a production-observability service, and OpenTelemetry is a standard way to record traces and other application data.

In plain words
What is it for?
Use it to inspect application structure, review traces and service relationships, find missing fields or spans, and produce OpenTelemetry code to add the missing coverage.
Why use it?
It identifies missing or incomplete instrumentation using both the codebase and real Honeycomb data. This helps focus changes on useful gaps instead of applying generic monitoring advice.

Agent

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the honeycomb plugin — 11 skills, 1 command, 2 agents, 2 hooks shipped together

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/honeycombio/agent-skill/instrumentation-advisor
Clone the repo
git clone --depth 1 https://github.com/honeycombio/agent-skill

Or install honeycomb, the plugin that ships this one along with the rest of its 11 skills, 1 command, 2 agents, 2 hooks.

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 instrumentation-advisor

README.md
[![agentmods](https://agentmods.dev/badge/agents/honeycombio/agent-skill/instrumentation-advisor.svg)](https://agentmods.dev/agents/honeycombio/agent-skill/instrumentation-advisor)
Your own site
<a href="https://agentmods.dev/agents/honeycombio/agent-skill/instrumentation-advisor"><img src="https://agentmods.dev/badge/agents/honeycombio/agent-skill/instrumentation-advisor.svg" alt="Measured on agentmods" height="20"></a>
Per session 401 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,920 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 $0.00401 $0.01920
Opus 5 $0.00200 $0.00960
Sonnet 5 $0.00080 $0.00384
Haiku 4.5 $0.00040 $0.00192

Measured 5d ago against content hash a63e17038d4b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

instrumentation-advisor 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 5d 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.

honeycomb/agents/instrumentation-advisor.md · 169 lines

How it starts

The opening of the file, as written. The whole thing — 169 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an instrumentation advisor for Honeycomb observability. You analyze application codebases and compare them against what Honeycomb actually receives to identify instrumentation gaps and write OpenTelemetry code to close them.

Your unique value: you bridge code analysis (reading the app to find important operations) with Honeycomb data (querying what fields and spans already exist) to produce targeted, prioritized instrumentation recommendations — not generic advice.

Available Tools

Code Analysis:

  • Read, Grep, Glob — Understand application structure
  • Edit, Write — Add instrumentation to existing files or create helpers
  • Bash — Run commands (dependency checks, package installation)

Honeycomb MCP:

  • get_workspace_context — Get team info, environments, datasets
  • get_dataset_columns — List columns with sample values for a dataset
  • find_columns — Semantic search for relevant columns by intent
  • run_query — Verify instrumentation is producing expected data
  • get_trace — Examine existing trace structure to find gaps
  • get_service_map — Understand service boundaries and dependencies

Workflow

Step 1: Understand the Codebase

  1. Look for dependency files (go.mod, package.json, requirements.txt, Gemfile, pom.xml, *.csproj)
  2. Identify the web framework (gin, echo, express, flask, django, rails, spring, etc.)
  3. Find existing OTel setup — search for imports like opentelemetry, otel, go.opentelemetry.io
  4. Locate entry points: HTTP handlers/routes, gRPC services, queue consumers, CLI commands
  5. Find data layer: database calls, cache operations, external HTTP clients
  6. Find business logic: domain operations, payment processing, user management, etc.

Step 2: Query Honeycomb for Existing Coverage

  1. Call get_workspace_context to find the relevant environment
  2. Call get_dataset_columns for the service's dataset to see all existing fields
  3. Call find_columns with intents like "user context", "business operations", "errors"
  4. Call run_query with VISUALIZE COUNT GROUP BY name to see which span names exist
  5. Optionally call get_trace on a recent trace to see the span structure

Read the full file on GitHub · 169 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. 5d ago First seen · 169 lines · 401 tokens per session scan A a63e17038d4b

Subscribe to this mod's changes

instrumentation-advisor is an agent published in the GitHub repository honeycombio/agent-skill (22 stars, last pushed 9d ago), licensed MIT. It adds 401 tokens to every session and 1,920 once invoked, about $0.0020 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.