Translates the seven-subcommand engine to Node ESM, one module per former Go
file, invoked as `node scripts/newsletter <command>` from the repo root. The Go
implementation stays in place for now so parity can be measured against it.
Hand-rolled HTML and XML regexes give way to cheerio, which removes the manual
string surgery in caption extraction and covers RSS and sitemap XML through
xmlMode without a second parser. fetch-via-defuddle gains a local extraction
stage ahead of the defuddle.md proxy; the proxy stays, because fetching from a
third IP is the whole point when this machine's IP is the blocked one. Both
stages now emit the same YAML frontmatter plus body, and an extraction that
looks like a bot challenge counts as a local failure so the proxy still runs.
Behaviour is preserved where it is load-bearing rather than where it is merely
idiomatic: query strings are rebuilt by string surgery so surviving parameters
keep their original order and encoding, duplicate detection stays an index loop
with byte-offset boundary checks so a prefix of a stored URL is not a false
match, empty optional fields are omitted rather than emitted as "", a deep-crawl
miss reports cutoff as null rather than dropping the key, bullet filtering counts
code points, tag counts keep their six-column alignment, and a malformed percent
sequence falls back to the raw substring.
The printer lives in its own module so a command module never imports the
dispatcher: index.js runs main() at module scope, so that cycle would execute
the CLI as a side effect of any import. Missing dependencies report one
actionable line instead of a module-resolution stack trace, and a reader that
closes early exits quietly instead of raising EPIPE.
One Go binary with a subcommand per former script, invoked as
'go run ./scripts/newsletter <command>' from repo root. Stdlib only;
publications config embedded via go:embed (go run recompiles on edit).
Behavior parity verified side-by-side before deleting the JS —
see plans/reports/parity-260818-newsletter-go-migration-report.md.
Permissions: allow 'Bash(go *)', drop 'Bash(node *)' and the redundant
'Write(content)' rule (Edit rules cover all file-editing tools).
Extract newsletter scripts to a neutral scripts/newsletter/ engine and add
side-by-side support for all three AI coding tools off one source of truth.
- Move 9 scripts + substack config from .claude/skills/**/scripts to
scripts/newsletter/ (history preserved); fix PROJECT_ROOT depth and
cross-require/config paths; repoint all SKILL.md invocations
- Add canonical AGENTS.md; reduce CLAUDE.md to an @AGENTS.md import
- Add opencode.json (permissions, no MCP); skills auto-discovered in place
- Add codex/prompts/*.md (6 prompts) + copy installers (install.sh/.ps1)
- Add docs/multi-tool-usage.md (setup, per-tool invocation, teardown) + README pointer
tiennm99