A feature-flag and experimentation toolkit for controlling which users see software changes. Feature flags turn features on or off, while segments group users for targeted rollouts.

Use it to discover, create, target, roll out and remove feature flags, and to run experiments using segments and metrics.

It helps teams release changes gradually, target selected users and clean up old flags without changing the application each time.

harness-fme — Plugin for Claude Code by harness/harness-skills

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.

Clone the repo

git clone --depth 1 https://github.com/harness/harness-skills

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/harness/harness-skills/harness-fme/github.svg)](https://agentmods.dev/plugins/harness/harness-skills/harness-fme)

Your own site

<a href="https://agentmods.dev/plugins/harness/harness-skills/harness-fme"><img src="https://agentmods.dev/badge/plugins/harness/harness-skills/harness-fme/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.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/harness/harness-skills/harness-fme"><img src="https://agentmods.dev/badge/plugins/harness/harness-skills/harness-fme.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured The manifest loads nothing itself; its 16 skills cost 2,394 tokens a session between them.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

harness-fme 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 yesterday.

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.

.claude-plugin/marketplace.json#harness-fme · 23 lines

What it actually says

{
  "name": "harness-fme",
  "displayName": "Harness FME (Feature Flags & Experimentation)",
  "description": "16 skills: Discover, create, target, roll out, clean up and experiment with Harness FME feature flags, segments and metrics.",
  "source": ".",
  "strict": false,
  "skills": [
    "./skills/fme"
  ],
  "category": "feature-flags",
  "keywords": [
    "harness",
    "fme",
    "feature-flags",
    "experimentation",
    "split"
  ],
  "author": {
    "name": "Harness"
  },
  "repository": "https://github.com/harness/harness-skills",
  "license": "Apache-2.0"
}

Contents

What it installs

The manifest is a name and a version. 16 skills travel with it, and installing the plugin installs all of them — 2,394 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Files

What ships with it

1 file beside marketplace.json#harness-fme 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.

marketplace.json 5.8 KB

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.

yesterday First seen · 23 lines scan A 313aea7fc267

Subscribe to this mod's changes

harness-fme is a plugin published in the GitHub repository harness/harness-skills (117 stars, last pushed yesterday), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-10-15.

Analytics and metrics agent-skills agents

jk

GitHub CLI-style interface for Jenkins controllers - create multibranch jobs, inspect config.xml, and manage runs, logs, artifacts, credentials, nodes, and queues.

avivsinai/jenkins-cli · not measured

jira-pack

Issue-tracker pack: /jira-fix takes a ticket link of any type, verifies tracker access, classifies it as a defect or a change, reproduces the defect or writes a failing acceptance test for the change, routes the work to core executors, comments back with evidence and moves the ticket to the QA column. Opt-in; requires.

atretyak1985/swarmery · not measured

harness-fme

Getting it into your agent

Wrote this? Show the measurements

Grade A, and why

Nothing flagged

What it actually says

What it installs

What ships with it

What this file has done since we first saw it

Other plugins, from other repositories

jk

jira-pack

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