Official agent skill

Llmobs Integration

by DataDog in DataDog/dd-trace-js

A skill your agent uses when adding, debugging, or modifying LLMObs plugins for an LLM library in dd-trace-js.

OfficialCustom licenceAuto-check passedAI & LLM Engineering

Install Llmobs Integration

skills CLI
$ npx skills add DataDog/dd-trace-js --skill llmobs-integration -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install DataDog/dd-trace-js llmobs-integration --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/DataDog/dd-trace-js.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/llmobs-integration .claude/skills/llmobs-integration && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
llmobs-integration
GitHub stars
836
Token cost
~1.4k tokens
SKILL.md length
628 words
Files
5 (incl. references)
Skills in repo
7
Repo updated
First seen
Licence
Custom licence

At a glance

A skill your agent uses when adding, debugging, or modifying LLMObs plugins for an LLM library in dd-trace-js.

  • Works in 4 steps: LLMObsPlugin Base Class → Package Shape → LLM Span Kinds → …
  • Modifying LLMObs plugins for an LLM library in dd-trace-js
  • SKILL.md covers Read Upstream Source First, Core Concepts and Implementation Steps
  • Calls npm

What it does

Llmobs Integration is an agent skill from DataDog/dd-trace-js, published by the product's own GitHub organization. Use when adding, debugging, or modifying LLMObs plugins for an LLM library in dd-trace-js. Triggers: "add LLMObs support", "instrument chat completions / streaming / embeddings / agent runs / orchestration / tool calls / retrieval", "LLMObsPlugin", "getLLMObsSpanRegisterOptions", "setLLMObsTags", "SPANKINDS", "span kind", any provider tag ("openai" / "anthropic" / "genai" / "google" / "langchain" / "langgraph" / "ai" llmobs), "VCR cassettes".

Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including reference files (for example `references/category-detection.md`, `references/message-extraction.md` and `references/plugin-architecture.md`).

It sits in AI & LLM Engineering, covering Building AI agents, LLM API integration and Embeddings. It works with OpenAI, Datadog, LangChain and LangGraph. The repository describes itself as: Datadog APM client for Node.js.

When your agent uses it

  • Modifying LLMObs plugins for an LLM library in dd-trace-js
  • Tasks that involve Building AI agents
  • Tasks that involve LLM API integration

Example prompts

  • “add LLMObs support”
  • “LLMObsPlugin”
  • “getLLMObsSpanRegisterOptions”
  • “/llmobs-integration”

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. LLMObsPlugin Base Class
  2. Package Shape
  3. LLM Span Kinds
  4. Message Extraction

What it can do on your machine

Read from SKILL.md and the folder at commit 8002f70. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • npm

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use npm, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Llmobs Integration loads about 1.4k tokens when it runs, and up to ~5.8k if it reads all its reference files. Until then it costs about 117 tokens; SKILL.md has 628 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~117
When it runs · the whole SKILL.md, loaded when a task matches
~1.4k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~5.8k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 628 words (~1,445 tokens).

“This skill covers creating LLMObs plugins that instrument LLM library operations and emit span events. Supported operations: chat completions (streaming and non-streaming), embeddings, agent runs, orchestration (workflows / graphs), tool calls, retrieval (RAG / vector DB).”

— opening of SKILL.md by DataDog, Custom licence
name
llmobs-integration

Read the full SKILL.md on GitHub

Files

SKILL.md and 4 other files (references) in .agents/skills/llmobs-integration of DataDog/dd-trace-js.

  • SKILL.md
  • references/category-detection.md
  • references/message-extraction.md
  • references/plugin-architecture.md
  • references/reference-implementations.md

Open the folder on GitHubat commit 8002f70

Compare with similar skills

Llmobs Integration next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Llmobs Integration compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Llmobs Integration this skillDataDog/dd-trace-js836—~1.4kAutomated safety check: PassCustom licence
Sap Cloud SDK AIsecondsky/sap-skills460—~3.2kAutomated safety check: PassGPL-3.0
Sap Cloud SDK AI Pythonsecondsky/sap-skills460—~3.8kAutomated safety check: PassGPL-3.0
Add Example AgentGetBindu/Bindu10k—~1.1kAutomated safety check: NotesCustom licence
Agent Prompt Engineeringagentailor/fullstack-langgraph-nextjs-agent132—~3.6kAutomated safety check: PassMIT
Agent Inspectrajudandigam/agent-inspect165—~424Automated safety check: PassMIT

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Questions about Llmobs Integration

What does Llmobs Integration do?

A skill your agent uses when adding, debugging, or modifying LLMObs plugins for an LLM library in dd-trace-js. Llmobs Integration is an agent skill from DataDog/dd-trace-js, published by the product's own GitHub organization. Use when adding, debugging, or modifying LLMObs plugins for an LLM library in dd-trace-js.

When should I use Llmobs Integration?

Llmobs Integration fits situations like: modifying LLMObs plugins for an LLM library in dd-trace-js; tasks that involve Building AI agents; tasks that involve LLM API integration.

How do I install Llmobs Integration in Claude Code?

Run `npx skills add DataDog/dd-trace-js --skill llmobs-integration -a claude-code`. Or copy the skill folder (.agents/skills/llmobs-integration in DataDog/dd-trace-js) into .claude/skills/llmobs-integration in your project. Claude Code loads it when a task matches its description.

How do I install Llmobs Integration in Codex?

Run `npx skills add DataDog/dd-trace-js --skill llmobs-integration -a codex`. Or copy the skill folder (.agents/skills/llmobs-integration in DataDog/dd-trace-js) into .agents/skills/llmobs-integration in your project. Codex loads it when a task matches its description.

Can I use Llmobs Integration in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add DataDog/dd-trace-js --skill llmobs-integration -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/llmobs-integration, .gemini/skills/llmobs-integration, .github/skills/llmobs-integration and .opencode/skills/llmobs-integration in your project.

What does Llmobs Integration need to run?

Going by SKILL.md and its folder, Llmobs Integration needs the command-line tools its instructions call (npm).

Does Llmobs Integration access the network?

SKILL.md contains no URLs. Its commands use npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Llmobs Integration safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Llmobs Integration use?

Llmobs Integration has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Llmobs Integration use?

About 1.4k tokens (SKILL.md is roughly 5.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 4.3k tokens, read only when the agent opens those files.

What are the alternatives to Llmobs Integration?

Skills that share tags, products or a category with Llmobs Integration: Sap Cloud SDK AI (secondsky/sap-skills, 460 stars), Sap Cloud SDK AI Python (secondsky/sap-skills, 460 stars), Add Example Agent (GetBindu/Bindu, 10k stars) and Agent Prompt Engineering (agentailor/fullstack-langgraph-nextjs-agent, 132 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Llmobs Integration?

DataDog (a GitHub organization, an official publisher) maintains it in DataDog/dd-trace-js, which has 836 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on October 7, 2026.

Source: DataDog/dd-trace-js on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.