Encode and decode rolldown REPL share URLs containing base64 zlib-compressed source files.
npx skills add https://github.com/rolldown/rolldown --skill rolldown-repl
Please help me install this Agent Skill. Skill: rolldown-repl Source: https://github.com/rolldown/rolldown/tree/main/.claude/skills/rolldown-repl Command: npx skills add https://github.com/rolldown/rolldown --skill rolldown-repl
Rolldown REPL share links store all state (source files and rolldown version) in the URL hash as base64(zlib(JSON)), which browsers never send to a server, so fetching the URL returns an empty shell. This Skill decodes those hashes locally to recover the actual reproduction files, and encodes local source directories back into shareable REPL URLs.
repl.rolldown.rs/#... link, optionally writing files to disk with --write._config.json translation into a rolldown.config.ts.Decode this rolldown REPL URL and show me the source files and version it contains.
High-intent search queries and answers about installing and using this skill.
Run the bundled decode script with Node: `node decode.mjs '<full-url>'`. It prints a JSON summary of the version and files, and with `--write <dir>` it writes each source file to disk. Quote the URL so the shell does not strip the `#` hash.
Run `node encode.mjs <dir>` to walk a directory and print a shareable REPL URL. Use `--entry <file>` to mark entry files, `--version <v>` to pin a rolldown version, and `--variant <name>` to select a config variant from `_config.json`.
Yes. The encoder reads a fixture's `_config.json`, translates the flattened BundlerOptions into a generated `rolldown.config.ts` with output options nested under `output`, and auto-marks entries declared in `config.input`. Plugins cannot be serialized and are flagged with a warning.
The Invalid base64 error means the URL was truncated when copied, so the hash payload is incomplete. Ask the user to repaste the full URL including everything after the `#` character.
Yes. The decoder handles both the modern zlib-compressed format (identified by the `\x78\xDA` header) and the legacy `decodeURIComponent(escape(...))` format used by older share links. The encoder always emits the modern format.
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