Official agent skill

Test Optimization Testing

by DataDog in DataDog/dd-trace-js

Validate v5 compatibility when adding or modifying Test Optimization or test framework integration tests in dd-trace-js.

OfficialCustom licenceAuto-check passedTesting & QA

Install Test Optimization Testing

skills CLI
$ npx skills add DataDog/dd-trace-js --skill test-optimization-testing -a claude-code

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

GitHub CLI
$ gh skill install DataDog/dd-trace-js test-optimization-testing --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/test-optimization-testing .claude/skills/test-optimization-testing && 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
test-optimization-testing
GitHub stars
836
Token cost
~492 tokens
SKILL.md length
233 words
Files
1
Skills in repo
7
Repo updated
First seen
Licence
Custom licence

At a glance

Validate v5 compatibility when adding or modifying Test Optimization or test framework integration tests in dd-trace-js.

  • Tasks that involve Integration testing
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Test Optimization Testing is an agent skill from DataDog/dd-trace-js, published by the product's own GitHub organization. Validate v5 compatibility when adding or modifying Test Optimization or test framework integration tests in dd-trace-js.

Its SKILL.md is about 490 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Testing & QA, covering Integration testing. It works with Datadog. The repository describes itself as: Datadog APM client for Node.js.

When your agent uses it

  • Tasks that involve Integration testing

Example prompts

  • “/test-optimization-testing”

What it can do on your machine

Read from SKILL.md and the folder at commit a76ecb2. 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

    No scripts in the folder and no shell commands in SKILL.md.

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

  • Network

    No URLs in SKILL.md.

    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

Test Optimization Testing loads about 492 tokens when it runs. Until then it costs about 37 tokens; SKILL.md has 233 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~37
When it runs · the whole SKILL.md, loaded when a task matches
~492

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 233 words (~492 tokens).

“When adding or modifying Test Optimization or test framework integration tests, validate each changed test with both the current and v5 framework configurations before declaring the work complete.”

— opening of SKILL.md by DataDog, Custom licence
name
test-optimization-testing

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/test-optimization-testing of DataDog/dd-trace-js.

Open the folder on GitHubat commit a76ecb2

Compare with similar skills

Test Optimization Testing 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.

Test Optimization Testing compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Test Optimization Testing this skillDataDog/dd-trace-js836—~492Automated safety check: PassCustom licence
Datadog Terraform Provider Test RunnerDataDog/terraform-provider-datadog468—~949Automated safety check: PassMPL-2.0
Add Gc TestDataDog/jmxfetch109—~1.1kAutomated safety check: PassCustom licence
Fix Broken Datadog Provider TestsDataDog/terraform-provider-datadog468—~2.4kAutomated safety check: NotesMPL-2.0
Triage CI FailureDataDog/datadog-agent3.8k—~2.3kAutomated safety check: PassApache-2.0
Plugin Testingpolyipseity/obsidian-terminal948—~828Automated safety check: PassAGPL-3.0

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Works with

Categories

Questions about Test Optimization Testing

What does Test Optimization Testing do?

Validate v5 compatibility when adding or modifying Test Optimization or test framework integration tests in dd-trace-js. Test Optimization Testing is an agent skill from DataDog/dd-trace-js, published by the product's own GitHub organization. Validate v5 compatibility when adding or modifying Test Optimization or test framework integration tests in dd-trace-js.

When should I use Test Optimization Testing?

Test Optimization Testing fits situations like: tasks that involve Integration testing.

How do I install Test Optimization Testing in Claude Code?

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

How do I install Test Optimization Testing in Codex?

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

Can I use Test Optimization Testing 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 test-optimization-testing -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/test-optimization-testing, .gemini/skills/test-optimization-testing, .github/skills/test-optimization-testing and .opencode/skills/test-optimization-testing in your project.

What does Test Optimization Testing need to run?

SKILL.md names no scripts, command-line tools or credentials: Test Optimization Testing is instructions for the agent only.

Does Test Optimization Testing access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Test Optimization Testing 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 Test Optimization Testing use?

Test Optimization Testing 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 Test Optimization Testing use?

About 492 tokens (SKILL.md is roughly 2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Test Optimization Testing?

Skills that share tags, products or a category with Test Optimization Testing: Datadog Terraform Provider Test Runner (DataDog/terraform-provider-datadog, 468 stars), Add Gc Test (DataDog/jmxfetch, 109 stars), Fix Broken Datadog Provider Tests (DataDog/terraform-provider-datadog, 468 stars) and Triage CI Failure (DataDog/datadog-agent, 3.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Test Optimization Testing?

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 8, 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.