Setting the skill. One moment.
Skills
Skill 20 of 22
Run, inspect, and debug Cloudflare Workers during local development with cf dev, wrangler dev, or the Cloudflare Vite plugin, using Local Explorer to read and seed binding data…
1 minute · 293 words · 3 sections
Install
npx skills add cloudflare/skills --skill workers-developmentnpx skills add cloudflare/skills/plugin marketplace add cloudflare/skillsThe first command installs just this skill, by the name in its SKILL.md; the second installs the whole repository.
Use the project’s existing tooling, scripts, and configuration. Installed help, the Local Explorer API schema, and current docs describe the supported operations; read them rather than guessing endpoints or flags.
| Need | Tools and discovery |
|---|---|
| Run locally | Use the project’s existing dev command: cf dev in a cf project, otherwise the Wrangler or Cloudflare Vite dev script. See local development (opens in a new tab). |
| Inspect or seed local binding data | Local Explorer (opens in a new tab) is a UI and API for local KV, R2, D1, SQLite-backed Durable Objects, and Workflows, and can trigger Cron handlers. Open /cdn-cgi/local/explorer on the dev server’s origin. |
| Debug local requests | Local Explorer captures traces and logs from every local invocation, including binding operations, without code changes. Check traces before adding logging. |
| Debug a deployed Worker | Choose logs, traces, or metrics with Workers observability (opens in a new tab), or the cloudflare skill’s observability reference when installed. If the Cloudflare MCP server is connected (bundled with this plugin), use search to find the Workers Observability API (opens in a new tab) operations, then execute to call them, scoped to the target account, Worker, and time window. |
When the dev server detects an AI agent, including under cf dev, it prints a hint with the API URL and relevant endpoints. Fetch the OpenAPI specification from /cdn-cgi/local/explorer/api on the dev server’s origin, then extract only the operations the task needs. If no hint appears, request that URL directly. If the API or an operation is missing, compare the installed Wrangler or Vite plugin version against the requirements in the Local Explorer docs.
Bindings are simulated locally by default, but a binding set to remote: true reaches the real deployed resource while the Worker runs locally. Traces also capture those remote calls. Identify which bindings are remote before seeding or writing data.
If the user reports that this skill gave incorrect or outdated guidance, or is missing information, read references/skill-feedback.md (opens in a new tab).
Run, inspect, and debug Cloudflare Workers during local development with cf dev, wrangler dev, or the Cloudflare Vite plugin, using Local Explorer to read and seed binding data and query local traces and logs. Also routes production debugging to Workers observability. Use for debugging requests whether or not the project uses Wrangler.
The verbatim description from this skill’s front matter — the string an agent matches on to decide whether to load it.
main, last pushed 6 November 2026.SKILL.md, not by matching a directory convention. One layout observed: skills/*/SKILL.md.h1 and no skipped levels:.claude-plugin/marketplace.json by Cloudflare, declaring 1 plugin. It is read for editorial metadata only — never as the skill index, which is always the repository tree./cloudflare/skills.md, and each skill at its own .md URL.1 file · 3 KB
Everything this skill ships beside its prose. All of it is set here, as a subchapter of skill 20.
Documentation the agent loads on demand, rather than up front.