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autumn

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.

68

Quality

83%

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SecuritybySnyk

Medium

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SKILL.md
Quality
Evals
Security

Quality

Content

78%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A highly actionable, well-sequenced billing reference with excellent executable examples and sensible validation checkpoints. Its main weaknesses are a duplicative 'Common Gotchas' recap and a monolithic single-file structure that forgoes progressive disclosure into bundled reference files.

Suggestions

Collapse or remove the 'Common Gotchas' section where it restates earlier guidance (e.g., #2, #3, #5, #8 duplicate the Feature Types, Plan Structure, Naming, and Proportional Billing sections), keeping only net-new pitfalls.

Split the detailed reference material (Feature Types, Plan Structure, SDK/CLI command catalog) into bundled files under references/ and replace the inlined bulk with one-level-deep 'See X.md' pointers to improve progressive disclosure.

Add an explicit ordered workflow block (e.g., 1. define features/plans → 2. atmn preview → 3. validate shapes → 4. push --prod → 5. verify) with a validate→fix→retry loop so the production push path reads as a single checked process.

DimensionReasoningScore

Conciseness

The body is dense and reference-like, assuming Claude's competence without explaining basic billing or library concepts, but the 'Common Gotchas' section substantially restates points already covered above (featureId always 'ai_usage', reset/price interval exclusivity, snake_case, proportional billing), which could be trimmed.

4 / 5

Actionability

Provides copy-paste-ready TypeScript (SDK init, getOrCreate, check, track refund, middleware), concrete CLI commands ('bun x atmn push --prod', 'atmn preview'), exact file paths, and a runtime cost table — fully executable and covering the common cases.

5 / 5

Workflow Clarity

Clear sequences exist (getOrCreate MUST block → check → 402 on denial → refund on error; preview → push) with validation checkpoints ('atmn preview' dry run, validate ProductItem shapes, idempotent webhook handlers), but the guide is reference-style rather than a single coherent validate→fix→retry workflow, leaving minor gaps versus the top anchor.

4 / 5

Progressive Disclosure

Headers and tables give good in-page structure, but the ~350-line guide is entirely monolithic with no bundle files and no internal 'See X.md' pointers — detailed reference material (Feature Types, Plan Structure, SDK/CLI sections) that could be split into separate files is all inlined.

3 / 5

Total

16

/

20

Passed

Description

87%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong, well-scoped description that pairs a concrete 'what' with an explicit 'Use when' trigger clause and low conflict risk. Minor keyword synonym coverage and a few concept-vs-action items keep specificity and trigger quality just below the top anchor.

DimensionReasoningScore

Specificity

Names the domain ('Autumn billing in Epicenter') and lists several concrete elements — 'autumn-js credit checks', 'atmn CLI', 'plan gates', 'metered AI usage' — but several are topics/concepts rather than pure actions, leaving a minor coverage gap versus the comprehensive anchor.

4 / 5

Completeness

Explicitly answers both 'what' (Autumn billing in Epicenter: config, SDK credit checks, CLI, plan gates, metered usage) and 'when' ('Use when changing billing, pricing, credits, plan access, refunds, or usage events') with concrete trigger phrases, matching the top anchor.

5 / 5

Trigger Term Quality

The 'Use when' clause surfaces natural terms a user would say — 'billing, pricing, credits, plan access, refunds, or usage events' — plus concrete file/tool tokens like 'autumn.config.ts' and 'atmn', but misses common synonyms such as 'subscription', 'Stripe', or 'metered'.

4 / 5

Distinctiveness Conflict Risk

'Autumn billing in Epicenter' carves a clear niche with distinct, domain-specific triggers (credits, plan access, refunds, usage events) that are unlikely to fire for unrelated skills, giving minimal conflict risk.

5 / 5

Total

18

/

20

Passed

Validation

100%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
EpicenterHQ/epicenter
Reviewed

Table of Contents

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