Agent skill

Autumn

Autumn billing in Epicenter: autumn.config.ts, autumn-js credit checks, atmn CLI, plan gates, and metered AI usage.

Custom licenceAuto-check: notesBackend & APIs

Install Autumn

skills CLI

$ npx skills add EpicenterHQ/epicenter --skill autumn -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install EpicenterHQ/epicenter autumn --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/EpicenterHQ/epicenter.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/autumn .claude/skills/autumn && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "autumn" agent skill from https://github.com/EpicenterHQ/epicenter/tree/main/.agents/skills/autumn into .claude/skills/autumn/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "autumn", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/EpicenterHQ/epicenter/tree/main/.agents/skills/autumn

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add EpicenterHQ/epicenter --skill autumn -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install EpicenterHQ/epicenter autumn --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/EpicenterHQ/epicenter.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/autumn .agents/skills/autumn && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "autumn" agent skill from https://github.com/EpicenterHQ/epicenter/tree/main/.agents/skills/autumn into .agents/skills/autumn/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "autumn", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add EpicenterHQ/epicenter --skill autumn -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install EpicenterHQ/epicenter autumn --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/EpicenterHQ/epicenter.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/autumn .cursor/skills/autumn && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "autumn" agent skill from https://github.com/EpicenterHQ/epicenter/tree/main/.agents/skills/autumn into .cursor/skills/autumn/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "autumn", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/EpicenterHQ/epicenter.git --path .agents/skills/autumn

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add EpicenterHQ/epicenter --skill autumn -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install EpicenterHQ/epicenter autumn --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/EpicenterHQ/epicenter.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/autumn .gemini/skills/autumn && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "autumn" agent skill from https://github.com/EpicenterHQ/epicenter/tree/main/.agents/skills/autumn into .gemini/skills/autumn/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "autumn", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install EpicenterHQ/epicenter autumn

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add EpicenterHQ/epicenter --skill autumn -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/EpicenterHQ/epicenter.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/autumn .github/skills/autumn && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "autumn" agent skill from https://github.com/EpicenterHQ/epicenter/tree/main/.agents/skills/autumn into .github/skills/autumn/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "autumn", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add EpicenterHQ/epicenter --skill autumn -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install EpicenterHQ/epicenter autumn --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/EpicenterHQ/epicenter.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/autumn .opencode/skills/autumn && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "autumn" agent skill from https://github.com/EpicenterHQ/epicenter/tree/main/.agents/skills/autumn into .opencode/skills/autumn/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "autumn", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: autumn
GitHub stars: 4.8k
Token cost: ~3.4k tokens
SKILL.md length: 1,114 words
Files: 1
Skills in repo: 65
Repo updated: Oct 8, 2026
First seen: Oct 7, 2026
Licence: Custom licence

At a glance

Autumn billing in Epicenter: autumn.config.ts, autumn-js credit checks, atmn CLI, plan gates, and metered AI usage.

Works in 8 steps: getOrCreate must be awaited:… → featureId in check() is always… → reset.interval and price.interval are… → …
Changing billing
SKILL.md covers Reference Repositories, Upstream Grounding, Domain Model Checks and Naming Conventions (CRITICAL), plus 10 more sections
Calls bun and wrangler; needs AUTUMN_SECRET_KEY

What it does

Autumn is an agent skill from EpicenterHQ/epicenter. Autumn billing in Epicenter: autumn.config.ts, autumn-js credit checks, atmn CLI, plan gates, and metered AI usage. Use when changing billing, pricing, credits, plan access, refunds, or usage events.

Its SKILL.md is about 3.4k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Backend & APIs, covering Payments and billing. The repository describes itself as: Open-source, local-first apps.

When your agent uses it

Changing billing
Tasks that involve Payments and billing

Example prompts

“/autumn”

Requirements

A credential in AUTUMN_SECRET_KEY

Workflow steps

8 steps, taken from the first numbered list in SKILL.md.

getOrCreate must be awaited: Fire-and-forget will cause check() to fail with "customer not found."
featureId in check() is always 'ai_usage': The credit cost varies per model via dynamic requiredBalance, not featureId.
reset.interval and price.interval are mutually exclusive: not reset and price themselves. A PlanItemWithReset CAN have a price, but that…
sendEvent: true deducts atomically: Don't call track() separately for the happy path. Only use track({ value: -1 }) for refunds.
All IDs are snake_case: Autumn's pricing agent convention. Don't use kebab-case.
autoEnable triggers on customer creation: Not on first check(). Ensure the middleware calls getOrCreate before checking.
Multiple keys per environment: Autumn supports multiple active secret keys for rotation. Generate a new key, update secrets, then revoke…
Use proportional billing: One metered feature (ai_usage) with creditCost: 1 and dynamic requiredBalance per model. Per-model costs live in…

What it can do on your machine

Read from SKILL.md and the folder at commit 5b4bb69. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- bun
- wrangler
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
- github.com
- docs.useautumn.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
- AUTUMN_SECRET_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Autumn loads about 3.4k tokens when it runs. Until then it costs about 53 tokens; SKILL.md has 1,114 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~53
When it runs · the whole SKILL.md, loaded when a task matches: ~3.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

NoteMentions a .env fileSKILL.md:229

login       # OAuth login, saves keys to .env

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,114 words (~3,354 tokens).

“When Autumn Product, ProductItem, Feature, Entitlement, Customer, CustomerProduct, pricing, credit checks, SDK calls, CLI behavior, or usage-event semantics affect correctness, use source-backed grounding before relying on memory. If DeepWiki MCP is available, ask a narrow question against useautumn/autumn; if it…”

— opening of SKILL.md by EpicenterHQ, Custom licence

name: autumn
metadata.author: epicenter
metadata.version: 1.2

Outline of SKILL.md

Autumn Billing Integration Guide
Reference Repositories
Upstream Grounding
Domain Model Checks
Naming Conventions (CRITICAL)
Feature Types
Proportional Billing
Plan Structure
Groups
Add-ons
autoEnable
Plan items: reset.interval vs price.interval
SDK: autumn-js
Initialization
Customer Sync (MUST be blocking)
Credit Check
Refund on Error
CLI: atmn
Setup
Config File
Push/Pull
Data Inspection
Environment & Secrets
Middleware Pattern (Cloudflare Workers + Hono)
Ensure Customer Exists
Credit Gate in Handler
Stripe Integration
Common Gotchas
Project Files
Resources

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/autumn of EpicenterHQ/epicenter.

Open the folder on GitHubat commit 5b4bb69

Compare with similar skills

Autumn next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Autumn compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Autumn this skillEpicenterHQ/epicenter	4.8k	—	~3.4k	Automated safety check: Notes	Custom licence	2 days ago
Billing Automationwshobson/agents	40k	13 repos	~473	Automated safety check: Pass	MIT	5 days ago
Stripe Best Practicesfossasia/eventyay	1.7k	1 repos	~1.7k	Automated safety check: Pass	Apache-2.0	yesterday
Pinme Uniwebpayglitternetwork/pinme	3.8k	—	~7.3k	Automated safety check: Pass	MIT	28 days ago
PayRam Payment AnalyticsPayRam/payram-mcp	158	—	~4.1k	Automated safety check: Pass	None	2 days ago
AWS Marketplace Meteringaws/agent-toolkit-for-aws	2.8k	—	~18k	Automated safety check: Pass	Apache-2.0	yesterday

Similar skills

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40k GitHub starsUsed in 13 repos~473 tokens
Backend & APIsAuto-check passed
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Backend & APIsAuto-check passed
PayRam Payment Analytics
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AWS Marketplace Metering
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Questions about Autumn

What does Autumn do?

Autumn billing in Epicenter: autumn.config.ts, autumn-js credit checks, atmn CLI, plan gates, and metered AI usage. Autumn is an agent skill from EpicenterHQ/epicenter.ts, autumn-js credit checks, atmn CLI, plan gates, and metered AI usage.

When should I use Autumn?

Autumn fits situations like: changing billing; tasks that involve Payments and billing.

How do I install Autumn in Claude Code?

Run `npx skills add EpicenterHQ/epicenter --skill autumn -a claude-code`. Or copy the skill folder (.agents/skills/autumn in EpicenterHQ/epicenter) into .claude/skills/autumn in your project. Claude Code loads it when a task matches its description.

How do I install Autumn in Codex?

Run `npx skills add EpicenterHQ/epicenter --skill autumn -a codex`. Or copy the skill folder (.agents/skills/autumn in EpicenterHQ/epicenter) into .agents/skills/autumn in your project. Codex loads it when a task matches its description.

Can I use Autumn in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add EpicenterHQ/epicenter --skill autumn -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/autumn, .gemini/skills/autumn, .github/skills/autumn and .opencode/skills/autumn in your project.

What does Autumn need to run?

Going by SKILL.md and its folder, Autumn needs the command-line tools its instructions call (bun and wrangler) and credentials named AUTUMN_SECRET_KEY. Our summary lists: A credential in AUTUMN_SECRET_KEY.

Does Autumn access the network?

SKILL.md names 2 domains. As links in the text: github.com and docs.useautumn.com. This is read from the text; nothing was executed.

Is Autumn safe to install?

Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Autumn use?

Autumn has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Autumn use?

About 3.4k tokens (SKILL.md is roughly 13k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Autumn?

Skills that share tags, products or a category with Autumn: Billing Automation (wshobson/agents, 40k stars), Stripe Best Practices (fossasia/eventyay, 1.7k stars), Pinme Uniwebpay (glitternetwork/pinme, 3.8k stars) and PayRam Payment Analytics (PayRam/payram-mcp, 158 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Autumn?

EpicenterHQ (a GitHub organization) maintains it in EpicenterHQ/epicenter, which has 4,822 GitHub stars. The repository holds 65 skills in this directory. The repository was last updated on October 8, 2026.

Source: EpicenterHQ/epicenter on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Autumn

Install Autumn

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

Billing Automation

Stripe Best Practices

Pinme Uniwebpay

PayRam Payment Analytics

AWS Marketplace Metering

PayRam Bitcoin Payments

More from EpicenterHQ/epicenter

Agent Instructions

Consult Claude

Better Auth Security Best Practices

Cohesion Over Testability

Collapse Pass

Error Handling

Questions about Autumn

Install Autumn

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

More from EpicenterHQ/epicenter

Related

Questions about Autumn