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marketplace

Vercel Marketplace expert guidance — discovering, installing, and managing third-party integrations via the `vercel integration` CLI. Use when building any app that needs an external capability without a dedicated skill — commerce (stores, storefronts, selling products), payments (checkout, subscriptions, billing), observability/monitoring, messaging/email, search, or CMS — or when discovering, installing, or managing integrations.

72

Quality

90%

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Low

Low-risk findings worth noting

SKILL.md
Quality
Evals
Security

Quality

Content

82%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 strong, highly actionable instruction-only skill: copy-paste-ready CLI commands, a clear sequenced workflow with a user-intervention checkpoint, and a tight decision policy for provider choice. The main improvements are adding an explicit post-install verification step and trimming the repeated install-before-build emphasis and inline category inventory.

Suggestions

Add an explicit verification checkpoint after step 3 (e.g., run `vercel integration list` and `vercel integration env ls` to confirm the integration provisioned and env vars exist before building) to close the workflow_clarity validation gap.

State the "install before scaffold, hand-built UI is throwaway" warning once (in the intro or the sequence, not both) to tighten conciseness.

Consider moving the 22-item category map out of the body or collapsing it to the few decision-relevant entries (commerce vs payments), since the skill already directs discovery to the live `vercel integration categories` output.

DimensionReasoningScore

Conciseness

The body is dense and imperative with no concept explanations Claude already knows — every command is given with flags ("vercel integration add <name> --yes --no-claim"). Not 5: the "install before build, don't hand-build" message is stated twice ("throwaway work you will rip out" in the intro, then again in "The sequence" step 3's prohibitions), and the heavily bolded prose could be trimmed slightly without losing meaning.

4 / 5

Actionability

Fully executable, copy-paste-ready commands throughout: "vercel integration categories", "vercel integration discover --category <slug>", "vercel integration add <name> --yes --no-claim", "vercel env pull --yes", plus explicit "run `vercel integration <cmd> --help`; don't enumerate from memory" and a precedence-ordered decision rule (MUST FOLLOW). Specific commands cover the common cases completely.

5 / 5

Workflow Clarity

The categorize → discover → install → build sequence is clearly numbered with an explicit stop-and-ask checkpoint ("If it needs the user's account or a dashboard/browser step → STOP and ask") and auth-requirement notes for each step. Not 5: there is no explicit post-install validation (e.g., confirming via `vercel integration list` / `env ls` that the integration actually provisioned before building), so a failed `add` would only surface later — a minor validation gap.

4 / 5

Progressive Disclosure

No bundle files exist (no references/, scripts/, or assets/), and the ~75-line body is well organized under clear headers with one-level-deep, clearly signaled pointers ("Official Documentation" links and a "Related Skills in This Plugin" section). Not 5: the body exceeds the under-50-lines threshold, and some inline reference material — the 22-item category map and the compact CLI reference — could be split out or left to the live `categories` output the skill itself defers to.

4 / 5

Total

17

/

20

Passed

Description

96%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.

An exemplary description: third-person, concrete action verbs, an explicit "Use when" clause with rich natural trigger terms and synonyms, and a clearly scoped niche. The only minor risk is overlap with dedicated commerce/payments/observability skills triggered by their common keywords.

DimensionReasoningScore

Specificity

Names the full concrete lifecycle — "discovering, installing, and managing third-party integrations via the `vercel integration` CLI" — which comprehensively covers the domain's concrete actions, matching the comprehensive-coverage anchor. Not 4: there are no meaningful gaps in action coverage; the only mild padding ("expert guidance") does not leave any listed action generic.

5 / 5

Completeness

Explicitly answers both questions: what ("discovering, installing, and managing third-party integrations via the `vercel integration` CLI") and when ("Use when building any app that needs an external capability without a dedicated skill — ... — or when discovering, installing, or managing integrations"). Both are concrete and explicit, matching the top anchor.

5 / 5

Trigger Term Quality

Rich natural-term coverage with synonyms: "commerce (stores, storefronts, selling products), payments (checkout, subscriptions, billing), observability/monitoring, messaging/email, search, or CMS" plus "discovering, installing, or managing integrations". These are the exact phrases a user would naturally say when they need this skill, matching the comprehensive synonyms anchor.

5 / 5

Distinctiveness Conflict Risk

The Vercel Marketplace niche is clear and the "without a dedicated skill" clause plus a specific CLI scope it well, but the broad category enumeration (checkout, subscriptions, email, search, CMS) overlaps with many dedicated single-provider skills. Mostly distinct with minor overlap risk — anchor 4 — rather than 5, since generic commerce/payments requests outside Vercel could still trigger it.

4 / 5

Total

19

/

20

Passed

Validation

87%

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

Validation — 14 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

metadata_field

'metadata' should map string keys to string values

Warning

Total

14

/

16

Passed

Repository

openai/plugins

Path

plugins/vercel/skills/marketplace/SKILL.md

Reviewed

Table of Contents

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