A guide for managing Harness Cloud Development Environments, which are hosted workspaces developers can start when needed instead of preparing every computer locally.

Use it to set up environment templates, standardize tools for teams, configure cloud workspaces, and manage their lifecycle.

It provides a structured way to define shared workspaces, control their resources and costs, and manage when they start, stop, or sleep.

manage-cde — Skill for Claude Code by harness

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.

Any agent

npx skills add harness/harness-ai --skill manage-cde

Clone the repo

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

Made for: Claude Code.

Or install harness, the plugin that ships this one along with the rest of its 55 skills, 1 MCP server.

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/skills/harness/harness-ai/manage-cde/github.svg)](https://agentmods.dev/skills/harness/harness-ai/manage-cde)

Your own site

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

Per session 111 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,058 The whole file, excluding the scripts and references it only reads on demand.

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

Origin 100% copy Near-identical to another mod 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.

Model	Per session	Once invoked
Fable 5.1	$0.00111	$0.01058
Opus 5	$0.00056	$0.00529
Sonnet 5	$0.00022	$0.00212
Haiku 4.5	$0.00011	$0.00106

Measured 9d ago against content hash d788b35be072, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

manage-cde 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 9d 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.

Origin

This is a copy

100% identical to manage-cde — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/claude/skills/manage-cde/SKILL.md · 134 lines

How it starts

The opening of the file, as written. The whole thing — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Manage CDE

Configure on-demand Cloud Development Environments with workspace templates, auto-hibernation, and cost controls in Harness.

Instructions

Step 1: Establish Scope

Confirm the user's org, project, team, and technology stack.

Call MCP tool: harness_list
Parameters:
  resource_type: "project"
  org_id: "<organization>"

Step 2: Identify the CDE Task

Determine which workflow the user needs:

On-Demand Environment Setup -- Environment templates with resource allocation and lifecycle
Workspace Standardization -- Pre-configured templates per team/stack with consistent tooling

Step 3: Configure On-Demand Environments

Gather from the user:

Technology stack and runtime version
Cloud provider (AWS, GCP, Azure)
IDE preference (VS Code browser, VS Code SSH, JetBrains Gateway)
Git provider for auto-clone on start

Design the environment template:

Resource allocation:

Default size (e.g., 4 vCPU, 8GB RAM) with upgrade options
Persistent storage for workspace files
Ephemeral storage that clears on stop

Lifecycle configuration:

Provisioning trigger: developer request, PR creation, or branch push
Start time target (under 30 seconds recommended)
Auto-stop after idle timeout (default 30 minutes)
Persistent mode option for long-running work

Integrations:

Secret injection from Harness Secrets, Vault, or cloud secret managers
Supporting services (databases, caches, message queues) via Docker Compose or Kubernetes
Custom access URL pattern (e.g., {user}-{env}.dev.company.com)

Cost controls:

Daily cost cap per environment
Team-level monthly budget
Auto-hibernation for idle environments

Step 4: Create Workspace Templates

When standardizing across teams, create templates per role/stack:

Backend Service Developer:

Runtime, build tools, testing frameworks
Database clients, API testing tools
Pre-configured debugger and linter

Frontend Developer:

Node.js runtime, package manager
Browser dev tools, component library
Hot-reload and preview server

Read the full file on GitHub · 134 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.

9d ago First seen · 134 lines · 111 tokens per session scan A d788b35be072

Subscribe to this mod's changes

manage-cde is a skill published in the GitHub repository harness/harness-ai (19 stars, last pushed 18d ago), licensed Apache-2.0. It adds 111 tokens to every session and 1,058 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to manage-cde, differing in 0 lines, and is treated as a copy.

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