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wrangler

Run or troubleshoot Wrangler CLI commands in projects that have a wrangler.jsonc, wrangler.json, or wrangler.toml file, including local development, Previews, deployment, and resource management. For new projects and projects without a Wrangler configuration file, use the cf CLI instead.

1.00x
Quality

89%

Does it follow best practices?

Impact

100%

1.00x

1 of 3 eval scenarios. Add 2 more for a full score.

SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

81%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.

The body is a lean, high-signal operations guide: it sequences inspect→retrieve→apply→validate with genuine validation checkpoints and safety guards, and it consistently points at authoritative live docs instead of duplicating them. Its weaknesses are modest — an inline version pin, few complete example command lines, and Previews detail that would sit better in a separate reference file.

Suggestions

Add one or two complete, copy-paste-ready example invocations (e.g., `wrangler deploy --dry-run --env <env>` and `CLOUDFLARE_ENV=preview wrangler dev`) alongside the existing flag-level guidance.

Move the Wrangler version requirements (e.g., "Wrangler 4.135.0 or later") into a short versioning/compatibility subsection so time-sensitive pins don't age the main guidance.

Consider splitting the two Previews sections into a previews.md reference file and keeping a brief decision summary plus a link in SKILL.md, matching the task→source table pattern already used for external docs.

DimensionReasoningScore

Conciseness

The body is dense, imperative, and free of concept re-teaching — every line adds non-obvious guidance ("CLI flags and configuration fields change; do not rely on memorized examples"). It loses a point only because time-sensitive version pins ("Workers Previews requires project-local Wrangler 4.135.0 or later") sit inline rather than in a dedicated deprecations/versions section.

4 / 5

Actionability

Concrete commands and flags appear throughout ("wrangler --help", "wrangler/config-schema.json", "wrangler types", "wrangler deploy --dry-run", "CLOUDFLARE_ENV", "wrangler versions secret"), giving mostly executable guidance. It stops short of copy-paste-ready full invocations (e.g., an example `wrangler deploy --dry-run --config … --env …` line), which keeps it below a 5.

4 / 5

Workflow Clarity

The body is a clear sequenced workflow — Inspect the Project → Retrieve What the Task Needs → Apply the Change → Validate — with explicit validation checkpoints (regenerate types, run typecheck/tests, `--dry-run`, report unresolved gaps) and explicit guards on destructive operations ("Writes to production resources, destructive testing, and deletion of named Previews must match the user's explicit intent").

5 / 5

Progressive Disclosure

Sections are well organized with an effective task→source navigation table and clearly signaled, one-level-deep links to Cloudflare docs. However, no bundle files exist and the ~66-line body inlines all detail (notably two full Previews sections) that could be split into reference files, which is a minor organization gap rather than a clear 5.

4 / 5

Total

17

/

20

Passed

Description

92%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.

The description is an excellent example: concrete actions, explicit file-extension-based triggers, both positive and negative use conditions, and clear routing to an alternative skill. The only minor gap is that it never names "Cloudflare Workers" as a natural trigger phrase, which slightly limits keyword coverage.

DimensionReasoningScore

Specificity

"Run or troubleshoot Wrangler CLI commands" paired with enumerated capability areas ("local development, Previews, deployment, and resource management") lists multiple specific concrete actions with comprehensive coverage of the Wrangler workflow; there are no minor gaps that would place it at 4.

5 / 5

Completeness

It explicitly answers what ("Run or troubleshoot Wrangler CLI commands… including local development, Previews, deployment, and resource management") and when ("in projects that have a wrangler.jsonc, wrangler.json, or wrangler.toml file"), plus an explicit negative boundary ("For new projects and projects without a Wrangler configuration file, use the cf CLI instead").

5 / 5

Trigger Term Quality

Natural terms users would say are present ("Wrangler", "Previews", "deployment", "local development") including concrete file extensions ("wrangler.jsonc, wrangler.json, or wrangler.toml"), but common variations like "Cloudflare Workers" or "deploy my Worker" are missing, so it is not fully comprehensive.

4 / 5

Distinctiveness Conflict Risk

Triggers are pinned to specific Wrangler config filenames and the description explicitly routes conflicting cases (new projects, projects without Wrangler config) to the cf CLI, giving a clear niche with minimal conflict risk.

5 / 5

Total

19

/

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.

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository

cloudflare/skills

Path

skills/wrangler/SKILL.md

Reviewed

Table of Contents

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