How to Install the ESG Sustainability Analyst Claude Plugin (Cowork & Code)

Don't want to install anything? You don't have to. The free web tools for ESG sustainability analysts on The AI Career Lab give you the same pre-built workflows in your browser — five runs a day on a free account, no terminal, no install. Create a free account if you'd rather skip straight to the tools.

The ESG Sustainability Analyst Claude plugin from The AI Career Lab is the fastest way to turn Claude into an ESG-aware co-worker. It bundles 4 pre-built slash commands and 2 auto-activating skills that already know what working ESG analysts actually do — KPI extraction with framework mapping (GRI, SASB/IFRS, TCFD, ESRS), SASB materiality risk scoring, regulator-grade disclosure drafting (CSRD, SEC, IFRS S1/S2, UK SECR, CA SB-253), and Scope 3 footprint planning.

The plugin works in both runtimes Claude offers:

• Claude Cowork — the chat product at claude.ai. The easiest path. Requires a paid Claude plan (Pro, Max, Team, or Enterprise).
• Claude Code — the terminal CLI. Particularly useful for ESG analysts since Claude Code can read your underlying data files (CSV emissions exports, supplier lists, prior-period filings) directly. Requires Node.js + npm.

What this plugin gives you

A normal Claude session is a blank chat window. A plugin replaces that with slash commands — pre-built shortcuts that contain the structure, formatting rules, and ESG conventions for a specific task.

In this plugin you get:

• /kpi-extraction — extracts ESG KPIs from a corporate report and maps to GRI, SASB/IFRS, TCFD, ESRS. Flags missing required disclosures
• /materiality-scoring — scores against SASB-material issues for the industry with single vs double materiality framing
• /disclosure-draft — drafts regulator-grade narratives in the structure required by the framework (CSRD/ESRS, SEC, IFRS S1+S2, UK SECR, CA SB-253). Bracketed placeholders for missing data
• /scope3-planning — per-category Scope 3 assessment with data quality tier and improvement roadmap

Which runtime should you use?

Use Claude Cowork if:

• You already use claude.ai for chat work
• You prefer a graphical interface to a terminal
• You don't want to install anything else on your machine
• You have a paid Claude plan (Pro, Max, Team, or Enterprise)

Use Claude Code if:

• You're already in a terminal alongside your data files
• You want Claude to read your actual CSV emissions exports, supplier data, prior-period filings directly
• You're on a free Claude account (Claude Code plugin install does not require a paid plan)

Path A: Install in Claude Cowork (easiest, no command lines)

1. Open claude.ai in your browser and sign in.
2. Make sure you're on a paid plan (Pro, Max, Team, or Enterprise).
3. Open the plugin settings and click Add marketplace.
4. In the modal, paste this into the URL field:

alexclowe/awesome-claude-cowork-plugins

5. Click Sync. Claude Cowork pulls the marketplace catalog from the public alexclowe/awesome-claude-cowork-plugins repo.
6. Browse the marketplace. Find the ESG Sustainability Analyst plugin and click Install.

Path B: Install in Claude Code (terminal CLI, two commands)

One-time Claude Code setup

1. Install Claude Code. Open a terminal and run:

npm install -g @anthropic-ai/claude-code

2. Sign in once. Run claude in your terminal and follow the sign-in flow.

Install the plugin

Inside Claude Code, run these two commands:

/plugin marketplace add alexclowe/awesome-claude-cowork-plugins
/plugin install esg-sustainability-analyst@awesome-claude-cowork-plugins

To verify, type /help and you should see the new commands listed alongside Claude Code's built-ins.

Your first command

For most ESG analysts, the highest-leverage starting point is KPI extraction — it's the per-company workflow that runs every reporting cycle:

/kpi-extraction

When you run it, Claude asks for the report source, content (paste relevant sections), frameworks to map to, and reporting period. The output is extracted KPIs with values + units + sources + methodology + assurance status, plus framework mapping (GRI / SASB / IFRS S1+S2 / TCFD / ESRS / EU Taxonomy), plus a gaps-and-caveats section.

That structured extraction becomes the input to the materiality scoring, disclosure drafting, and Scope 3 planning workflows. It's the foundation for the rest.

First 4 workflows to try after install

1. KPI extraction — /kpi-extraction in the plugin, or /tools/esg-kpi-extraction on the web. Run this on the next company you cover
2. Materiality scoring — /materiality-scoring in the plugin, or /tools/esg-materiality-risk-score on the web. Compare to commercial ratings — the rationale gap is where you add value
3. Disclosure drafting — /disclosure-draft in the plugin, or /tools/esg-disclosure-draft on the web. Run before the accounting+legal+assurance review meeting
4. Scope 3 planning — /scope3-planning in the plugin, or /tools/esg-scope3-footprint on the web. Run when scoping a new Scope 3 inventory

Skills you get for free

This plugin also includes Claude Skills that activate automatically when you're working on relevant tasks:

• Disclosure Discipline — when drafting disclosure content, automatically refuses to invent values; uses bracketed placeholders for missing data; flags methodology disclosure requirements
• Framework Version Awareness — when citing disclosure references, surfaces version-specific differences (GRI 2021 universal revision, SASB now under IFRS, TCFD now integrated into IFRS S2, ESRS phase-in dates)

The first time the disclosure discipline skill auto-activates and refuses to fill in a Scope 3 number you didn't provide — leaving it as [INSERT SCOPE 3 CATEGORY 11 — DATA TEAM TO PROVIDE] — you'll see the difference between using Claude generically and using Claude as an ESG analyst's co-worker.

Where to go from here

• Claude Cowork playbook for ESG analysts — the full setup guide with the five high-leverage prompt structures
• Free web tools for ESG analysts — same workflows, browser-based, no install required
• Best AI Tools for ESG Sustainability Analysts in 2026 — the broader landscape including Claude, GHG accounting platforms, ESG data providers, disclosure platforms, and assurance partners
• AI for ESG Sustainability Analysts guide — the working playbook for disclosure-grade work without inventing the numbers

Common issues

I don't see the "Add marketplace" option in Claude Cowork. You need to be on a paid plan. If you're on a free plan, install via Claude Code instead — it's free.

The marketplace sync failed in Claude Cowork. Double-check the URL field has exactly alexclowe/awesome-claude-cowork-plugins — a GitHub owner/repo format, no https://, no trailing slash.

The slash commands aren't showing up after install. Start a new chat (Cowork) or type /help (Claude Code). If you see the built-in commands but not the new ones, the install didn't complete — re-run the install.

I want to use this without installing anything. Use the free web tools instead. Same workflows, browser-based, no install or paid plan.

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This article is general guidance for ESG sustainability analysts. ESG disclosure frameworks (CSRD/ESRS, SEC climate-related disclosures, IFRS S1/S2, UK SECR, California SB-253/261, GHG Protocol Corporate Standard and Scope 3 Standard) are the authoritative references for their respective scopes. The tools described produce drafts and analytical artifacts for accounting, legal, and assurance review — they do not produce final disclosures. Specific applicability questions remain with your accounting, legal, and assurance providers.