A guide to measuring, reporting, and verifying greenhouse-gas emissions. It covers emissions standards, climate targets, disclosures, carbon-border rules, and preventing double counting.

Use it to plan Scope 1, 2, and 3 emissions work, prepare climate disclosures, set targets, and review carbon reports.

It helps organisations produce more consistent emissions records and meet reporting or verification requirements.

climate-mrv — Skill for Claude Code by VandanaAjayDubey111/great-pm

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 VandanaAjayDubey111/great-pm --skill climate-mrv

Clone the repo

git clone --depth 1 https://github.com/VandanaAjayDubey111/great-pm

Made for: Claude Code.

Or install great-pm, the plugin that ships this one along with the rest of its 114 skills, 34 commands, 48 agents, 5 hooks.

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/vandanaajaydubey111/great-pm/climate-mrv/github.svg)](https://agentmods.dev/skills/vandanaajaydubey111/great-pm/climate-mrv)

Your own site

<a href="https://agentmods.dev/skills/vandanaajaydubey111/great-pm/climate-mrv"><img src="https://agentmods.dev/badge/skills/vandanaajaydubey111/great-pm/climate-mrv/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/vandanaajaydubey111/great-pm/climate-mrv"><img src="https://agentmods.dev/badge/skills/vandanaajaydubey111/great-pm/climate-mrv.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,771 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 original No closer match found 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	$0.00059	$0.01771
Opus 5.5	$0.00024	$0.00708
Sonnet 5.5	$0.00012	$0.00354
Haiku 4.5	$0.00006	$0.00177

Measured 1mo ago against content hash 7c8123885f4f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

climate-mrv 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 1mo 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.

plugins/great-pm/skills/climate-mrv/SKILL.md · 177 lines

How it starts

The opening of the file, as written. The whole thing — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Codex host binding

Treat references to Claude slash workflows as the equivalently named Codex skill.
Before delegating to any specialist, read the great-pm-runtime skill and the selected packaged role file.
Treat "invoke", "assign", "delegate", "spawn", and source Agent-tool instructions as a required Codex spawn_agent call with that role and a bounded assignment.
For the spawn tool's task_name or agent_name identifier, replace canonical role-name hyphens with underscores (query-refiner-pm → query_refiner_pm). Keep canonical names unchanged in prompts, filenames, verdict logs, and user-facing output; this is an internal identifier mapping, not a role rename.
Store every returned agent identifier. Never call a wait tool until a spawn has returned an identifier, and wait only on identifiers returned by successful spawns.
If spawn_agent is unavailable or a spawn fails, report BLOCKED; do not impersonate the specialist or wait on an empty agent set.
Resolve bundled paths from the installed GreatPM plugin root.
Ignore Claude-only model aliases, colors, turn limits, and tool allowlists.
Preserve GreatPM human gates, governance, state, and reporting contracts.

Climate MRV — product-side playbook

MRV = Measurement, Reporting, Verification. Climate / carbon claims must be measurable, reportable, and verifiable — increasingly required by regulation (CSRD in EU, SEC climate disclosure in US) and audited. Greenwashing penalties have arrived. PMs building climate products need this frame.

1. The three scopes (GHG Protocol)

Scope	What	Example
1	Direct emissions from owned/controlled sources	Company-owned vehicles, on-site fuel combustion
2	Indirect emissions from purchased energy	Electricity from grid
3	All other indirect emissions in value chain	Supply chain (upstream), product use (downstream), employee commuting, business travel

Scope 3 is usually the largest AND hardest to measure. Methodology choice (spend-based vs activity-based vs supplier-specific) matters hugely.

Read the full file on GitHub · 177 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.

1mo ago First seen · 177 lines · 59 tokens per session scan A 7c8123885f4f

Subscribe to this mod's changes

climate-mrv is a skill published in the GitHub repository VandanaAjayDubey111/great-pm (3 stars, last pushed 1mo ago), licensed MIT. It adds 59 tokens to every session and 1,771 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-21.

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