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shopify-functions

Shopify Functions allow developers to customize the backend logic that powers parts of Shopify. Available APIs: Discount, Cart and Checkout Validation, Cart Transform, Pickup Point Delivery Option Generator, Delivery Customization, Fulfillment Constraints, Local Pickup Delivery Option Generator, Order Routing Location Rule, Payment Customization

67

Quality

80%

Does it follow best practices?

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SecuritybySnyk

Low

Low-risk findings worth noting

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tessl review fix ./plugins/shopify/skills/shopify-functions/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

77%Weight 40%Scale 1-3

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

The body is highly actionable with a clear, well-checkpointed workflow, but it is verbose and repetitive and keeps most reference-grade detail inline rather than splitting it into navigable reference files. Deduplicating the mandate sections and externalizing the deep API/Rust reference would improve both conciseness and progressive disclosure.

Suggestions

Consolidate the three repeated search/validate mandates ("Required Tool Calls", "MANDATORY: Search Before Writing Code", "MANDATORY: Validate Before Returning Code") into a single canonical workflow section to remove duplication.

Move the long Rust gotchas and GraphQL-convention blocks into a reference file (e.g. references/rust-notes.md, references/graphql-conventions.md) and link to them from a concise overview, so the inline body stays lean.

Tighten repeated emphasis ("IMPORTANT", "THIS IS IMPORTANT", "VERY IMPORTANT") into single clear statements; the underlying rules are correct but the emphasis is padded.

DimensionReasoningScore

Conciseness

Much of the content is genuinely novel Shopify-specific gotchas (Rust serde/Decimal rules, generated struct-path concatenation), but the ~25KB body is heavily padded with repetition — the search/validate mandate is stated three times, process lists overlap, and "IMPORTANT/THIS IS IMPORTANT" emphasis recurs — so it could be tightened considerably.

2 / 3

Actionability

Provides concrete, executable guidance throughout: exact CLI commands ("shopify app generate extension --template ... --flavor ..."), copy-paste Rust and GraphQL examples, worked naming-convention mappings, and validation scripts — fully actionable rather than descriptive.

3 / 3

Workflow Clarity

The required-tool workflow is a clear ordered sequence (search → write → validate → on failure search/fix/revalidate, max 3 retries → return only after validation passes) with an explicit feedback loop and checkpoint, matching the top anchor.

3 / 3

Progressive Disclosure

Scripts are properly referenced and used, but the assets doc snapshots are not navigated from the body and the heavy knowledge (Rust gotchas, GraphQL conventions, naming rules) lives as one inline monolithic block rather than being split into one-level-deep reference files.

2 / 3

Total

10

/

12

Passed

Description

82%Weight 40%Scale 1-3

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

The description is specific, distinctive, and rich in natural trigger terms, but it omits any explicit "Use when..." guidance so a reader must infer when Claude should invoke it. Adding a trigger clause would raise completeness to the top level.

Suggestions

Append an explicit trigger clause, e.g. "Use when building or debugging Shopify Functions for discounts, cart/checkout validation, delivery or payment customization, fulfillment constraints, or order routing."

Lead with the user-facing trigger phrasing ("writing Shopify Functions", "customizing checkout logic") before the API enumeration so the 'when' is as clear as the 'what'.

DimensionReasoningScore

Specificity

Lists multiple concrete API capabilities ("Discount, Cart and Checkout Validation, Cart Transform, Pickup Point Delivery Option Generator, Delivery Customization...") rather than vague language, matching the 'lists multiple specific concrete actions' anchor.

3 / 3

Completeness

It clearly states what the skill does but provides no "Use when..." clause or equivalent explicit trigger guidance; per the judging guidelines, a missing explicit trigger clause caps completeness at 2.

2 / 3

Trigger Term Quality

Includes natural developer-facing terms a user would actually say — "Shopify Functions", "Discount", "Cart Transform", "Payment Customization", "Delivery Customization" — giving good coverage of the relevant trigger vocabulary.

3 / 3

Distinctiveness Conflict Risk

The "Shopify Functions" niche plus the enumerated API list make it clearly distinguishable and unlikely to trigger for the wrong skill; it would not conflict with generic coding or document skills.

3 / 3

Total

11

/

12

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
openai/plugins
Reviewed

Table of Contents

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