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 ollygarden/opentelemetry-agent-skills --skill otel-jsgit clone --depth 1 https://github.com/ollygarden/opentelemetry-agent-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/ollygarden/opentelemetry-agent-skills/otel-js)<a href="https://agentmods.dev/skills/ollygarden/opentelemetry-agent-skills/otel-js"><img src="https://agentmods.dev/badge/skills/ollygarden/opentelemetry-agent-skills/otel-js/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/ollygarden/opentelemetry-agent-skills/otel-js"><img src="https://agentmods.dev/badge/skills/ollygarden/opentelemetry-agent-skills/otel-js.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 | $0.00094 | $0.00676 |
| Opus 5 | $0.00047 | $0.00338 |
| Sonnet 5 | $0.00019 | $0.00135 |
| Haiku 4.5 | $0.00009 | $0.00068 |
Grade A, and why
otel-js 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 7d 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 — 38 lines — stays where its author put it; the contents beside it link to each section on GitHub.
OpenTelemetry in Node.js
Entry point for OpenTelemetry mechanics in Node.js / JavaScript / TypeScript services. Load a reference below based on the task; each reference is self-contained.
References
| File | Use when |
|---|---|
references/declarative-setup.md |
Configuring the SDK via declarative YAML: OTEL_CONFIG_FILE, @opentelemetry/configuration, @opentelemetry/sdk-node, ESM/CJS import order, v2.0 migration. |
Sources of Truth
For YAML schema details, fetch the upstream sources listed in the otel-declarative-config skill.
For Node.js-specific facts:
| Fact | Fetch |
|---|---|
Latest @opentelemetry/configuration |
npm view @opentelemetry/configuration version |
Latest @opentelemetry/sdk-node |
npm view @opentelemetry/sdk-node version |
Latest @opentelemetry/auto-instrumentations-node |
npm view @opentelemetry/auto-instrumentations-node version |
Released package status / breaking changes (2.11.0 / 0.222.0) |
WebFetch https://raw.githubusercontent.com/open-telemetry/opentelemetry-js/v2.11.0/experimental/packages/configuration/README.md and WebFetch https://raw.githubusercontent.com/open-telemetry/opentelemetry-js/v2.11.0/experimental/packages/opentelemetry-sdk-node/README.md |
Experimental CHANGELOG through 0.222.0 |
WebFetch https://raw.githubusercontent.com/open-telemetry/opentelemetry-js/v2.11.0/experimental/CHANGELOG.md |
ESM / CJS preload mechanics at 2.11.0 |
WebFetch https://raw.githubusercontent.com/open-telemetry/opentelemetry-js/v2.11.0/doc/esm-support.md |
Auto-instrumentations register entry point at 0.80.0 |
WebFetch https://raw.githubusercontent.com/open-telemetry/opentelemetry-js-contrib/auto-instrumentations-node-v0.80.0/packages/auto-instrumentations-node/README.md |
| Node.js getting-started docs | WebFetch https://opentelemetry.io/docs/languages/js/getting-started/nodejs/ |
Cross-References
- Schema-level facts:
otel-declarative-configskill (language-agnostic YAML schema sources). - SDK version selection across languages:
otel-sdk-versionsskill. - Semantic conventions lookup:
otel-semantic-conventionsskill.
What ships with it
1 file 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.
- 7d ago Changed 23e00277d3f7
- 11d ago First seen · 38 lines · 94 tokens per session scan A aae319be808d
otel-js is a skill published in the GitHub repository ollygarden/opentelemetry-agent-skills (97 stars, last pushed today), licensed Apache-2.0. It adds 94 tokens to every session and 676 once invoked, about $0.0005 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.
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