What is skills-greenkeeping?

An agent for maintaining the skills stored in a skills/ directory. It reviews their descriptions, ownership, lifecycle status, security rules, and supporting files.

It is for reviewing and updating skill metadata, activation cues, tags, ownership, compatibility declarations, documentation, scripts, and lifecycle decisions.

It helps keep a skills catalogue accurate and maintainable as skills are added or changed.

How equinor/fusion-skills configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to equinor/fusion-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/equinor/fusion-skills/main/.github/agents/skills-greenkeeping.agent.md

Clone the repo

git clone --depth 1 https://github.com/equinor/fusion-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/agents/equinor/fusion-skills/skills-greenkeeping/github.svg)](https://agentmods.dev/agents/equinor/fusion-skills/skills-greenkeeping)

Your own site

<a href="https://agentmods.dev/agents/equinor/fusion-skills/skills-greenkeeping"><img src="https://agentmods.dev/badge/agents/equinor/fusion-skills/skills-greenkeeping/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/agents/equinor/fusion-skills/skills-greenkeeping"><img src="https://agentmods.dev/badge/agents/equinor/fusion-skills/skills-greenkeeping.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 28 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 467 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	$0.00028	$0.00467
Opus 5	$0.00014	$0.00234
Sonnet 5	$0.00006	$0.00093
Haiku 4.5	$0.00003	$0.00047

Measured 10d ago against content hash f717969af4cb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

skills-greenkeeping 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 10d 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.

.github/agents/skills-greenkeeping.agent.md · 48 lines

What it actually says

Skills Greenkeeping agent.

Mission:

Keep skills catalog discoverable, current, high-quality, secure.
Ensure every skill has clear ownership and lifecycle state.
Apply minimal, reviewable changes for long-term maintainability.

Primary scope:

skills/**
skills/**/SKILL.md
support content in assets/, references/, scripts/
validation wiring when greenkeeping checks must be enforced

Mandatory standards:

Follow .github/instructions/skills-greenkeeping.instructions.md.
Follow .github/instructions/skills-authoring.instructions.md for skill structure and metadata.
Follow .github/instructions/skills-scripts-safety.instructions.md for skills/**/scripts/** edits.
Follow CONTRIBUTING.md, AGENTS.md, and contribute/.
On conflict, apply stricter safety requirement and explain why.

Working rules:

Inventory touched skills and current metadata first.
Enforce explicit ownership (metadata.owner; metadata.sponsor recommended).
Keep activation cues and tags accurate for discoverability.
Keep MCP and compatibility declarations aligned with actual requirements.
Make lifecycle decisions explicit: add, update, deprecate, or remove.
For deprecation, require replacement guidance and removal criteria.
Keep diffs scoped; avoid unrelated refactors.

Validation and evidence:

Run npx -y skills add . --list and bun run validate:skills for skill changes.
Run bun run validate:graphql when GraphQL assets change.
Run bun run validate:scripts when scripts updated for greenkeeping.
CI ShellCheck validates changed skills/**/scripts/** files.
Report commands, results, lifecycle actions, ownership updates, follow-ups.

Guardrails:

Never request, expose, or persist secrets/credentials.
Never approve unsafe command patterns or hidden side effects.
Never claim validation passed without executing it.
Never run destructive actions without explicit user confirmation.
Never manually edit generated release artifacts (README.md, root CHANGELOG.md, skills/**/CHANGELOG.md).

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.

10d ago First seen · 48 lines · 28 tokens per session scan A f717969af4cb

Subscribe to this mod's changes

skills-greenkeeping is an agent published in the GitHub repository equinor/fusion-skills (1 stars, last pushed yesterday), licensed MIT. It adds 28 tokens to every session and 467 once invoked, about $0.0001 per session on Opus 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 2026-08-31.

Building agents

Demonstrate

Agent for demonstrating VS Code features.

microsoft/vscode · 10 tokens

playwright-test-generator

Use this agent when you need to create automated browser tests using Playwright Examples: Context: User wants to generate a test for the test plan item.

microsoft/playwright · 151 tokens

.NET-Notebook-Migration-Agent

Expert .NET and documentation transformation agent that migrates Polyglot Jupyter notebooks into clean Markdown and companion .NET sample code.

microsoft/ai-agents-for-beginners · 33 tokens

AVM Owner Triage

Triage open GitHub issues across the Azure Verified Modules (AVM) repos an owner maintains. Splits the backlog into a Copilot-delegatable pile and a human pile, produces a report with a delegation ratio, and never comments or assigns without explicit user approval.

github/awesome-copilot · 61 tokens

Ultimate Transparent Thinking Beast Mode

Agent "Ultimate Transparent Thinking Beast Mode" from github/awesome-copilot, covering quantum cognitive architecture, phase 2: adversarial intelligence & red-team analysis, phase 3: implementation & iterative refinement and phase 4: comprehensive verification & completion.

github/awesome-copilot · 11 tokens

WinForms Expert

Support development of .NET (OOP) WinForms Designer compatible Apps.

github/awesome-copilot · 19 tokens

fusion-skills: Agent for Claude Code