Add Dynamic Workers skill reference and prerequisites guide#39
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New product reference covering Cloudflare's Dynamic Workers (runtime V8 isolate execution). Includes API reference, configuration, patterns (code mode, MCP wrapping, OpenAPI, real-time logging), gotchas, pricing, and links to all 6 official examples. Also adds PREREQUISITES.md documenting the research process for adding future product skills (sources to gather, structure to follow, checklist). https://claude.ai/code/session_01CkgwSkxhYZtzvKduJF3xSR
Verified all claims against official Cloudflare docs and fixed:
- Fix import paths: @cloudflare/codemode/ai, @cloudflare/codemode/mcp
(were incorrectly @cloudflare/agents/*)
- Fix codeMcpServer signature: { server, executor } not positional args
- Fix openApiMcpServer signature: { spec, executor, request } not
{ spec, executor, baseUrl, headers }
- Fix helper library descriptions to match official changelog text
- Fix WfP languages column (supports JS/TS/Python/Rust/Wasm, not just JS/Python)
- Replace invented error messages with documented behavior
- Add official source links for raw bindings limitation
- Add caveat that __warmup__ is from example code, not documented API
- Replace guessed limits table with actual Workers platform limits
- Add source attribution for createWorker() return shape
- Fix RPC isolate phrasing to match docs
Sources: developers.cloudflare.com/dynamic-workers/,
/dynamic-workers/usage/bindings/, /agents/api-reference/codemode/,
/workers/platform/limits/, Cloudflare changelog
https://claude.ai/code/session_01CkgwSkxhYZtzvKduJF3xSR
- Sandbox disk is ephemeral across sleep, not persistent. Fixed to: "Ephemeral disk (lost on sleep); use R2 mounts for persistence" Source: developers.cloudflare.com/containers/faq/ - Removed "compatibilityDate independent of loader's" claim from configuration.md — not explicitly documented https://claude.ai/code/session_01CkgwSkxhYZtzvKduJF3xSR
- gotchas.md: Add explicit math showing load() at 10k invocations/day = $20/day vs get() = $0.002/day - README.md: Fix WfP languages to JS, TS, Python (drop Rust/Wasm which are not confirmed for WfP specifically) - workers-for-platforms/README.md: Add dynamic-workers See Also link - sandbox/README.md: Add dynamic-workers See Also link - tail-workers/patterns.md: Add Dynamic Workers section noting tails property for tail events https://claude.ai/code/session_01CkgwSkxhYZtzvKduJF3xSR
- api.md: Name Cap'n Web in the Custom Bindings section, explain capability-based security model (stubs, no global identifiers) Source: developers.cloudflare.com/dynamic-workers/usage/bindings/ - SKILL.md: Add "Run AI-generated code in a sandbox → dynamic-workers/" to the "I need AI/ML" decision tree https://claude.ai/code/session_01CkgwSkxhYZtzvKduJF3xSR
… Workers - configuration.md: Replace generic patterns.md link with specific cross-links to api.md#tail-workers-observability and patterns.md#real-time-log-streaming - README.md: Add retrieval-bias blockquote matching PR cloudflare#30 directive pattern https://claude.ai/code/session_01CkgwSkxhYZtzvKduJF3xSR
1. README.md: Fix comparison table State column — distinguish load()
(ephemeral) from get() (warm across requests, no isolate guarantee)
2. README.md: Add agents-sdk to See Also cross-references
3. PREREQUISITES.md: Add retrieval-bias directive to verify checklist
4. gotchas.md: Add links to all /dynamic-workers/ usage pages
5. gotchas.md: Fix misleading isolate reuse claim — get() improves
likelihood but does not guarantee same isolate
6. configuration.md: Add local dev note for wrangler dev behavior
7. api.md: Add Executor interface mention for custom sandbox impls
8. configuration.md: Add text/data/json non-code module types table
9. SKILL.md: Add "I need to sandbox untrusted code" decision tree
10. SKILL.md references: frontmatter — no change, by design (only
core products auto-load)
https://claude.ai/code/session_01CkgwSkxhYZtzvKduJF3xSR
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Summary
skills/cloudflare/references/dynamic-workers/reference with the standard 5-file structure (README, api, configuration, patterns, gotchas)skills/cloudflare/PREREQUISITES.mddocumenting the research process for new skillsChanges