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+# html2rss-configs Agent Guide
+
+This repo owns the curated YAML config set for `html2rss`.
+
+Primary goal: add or repair configs that are stable, shippable, and easy to verify. Prefer a narrow, clean surface over a broad noisy one.
+
+## Scope
+
+- Source of truth here: `lib/html2rss/configs/`.
+- Do not hand-edit generated schema output.
+- Keep config work separate from downstream docs, web, or example changes unless the task explicitly includes them.
+
+## Defaults
+
+- Use the registrable domain folder, not a subdomain folder, unless there is a strong existing reason.
+- Start from the cleanest article list the site offers, not the marketing homepage by default.
+- Prefer stable list/detail extraction over extracting every possible field.
+- If the site only becomes reliable on a narrower path, use that narrower path.
+- Omit brittle fields. If dates or descriptions are low quality, leave them out.
+- Set `enhance: false` when enhancement pulls in page chrome, duplicate cards, or unrelated links.
+
+## Surface Selection
+
+Prefer these surfaces first:
+
+- dedicated newsroom or blog archive pages
+- category pages with one repeated card structure
+- stable subpaths like `/blog/latest` or `/blog/everything/`
+
+Avoid these unless they are the only workable option:
+
+- homepages with hero content mixed with promos
+- pages that combine multiple unrelated card systems
+- infinite-scroll surfaces unless Browserless is already clearly required
+- localized or geo-redirecting entry pages when a stable non-localized path exists
+
+## Selector Strategy
+
+Start with the smallest useful selector set:
+
+- `items`
+- `title`
+- `url`
+
+Add fields only when they are clean:
+
+- `description`
+- `published_at`
+- `author`
+- `categories`
+
+Useful patterns:
+
+- Prefer the repeated article card itself as `items`, especially when it is a single anchor.
+- Anchor on article URLs or stable path fragments instead of generic headings.
+- Keep selectors item-local when possible.
+- Do not add complexity to recover weak optional fields.
+
+## Chrome MCP
+
+Use Chrome MCP when the static HTML is unclear, the page is hydrated, or Faraday fetch returns zero items while the browser shows a valid list.
+
+Recommended sequence:
+
+1. Open the target URL.
+2. Take an accessibility snapshot.
+3. Identify the exact repeated item boundary.
+4. Confirm the title and URL live inside that boundary.
+5. Record the final URL if the page redirects by locale or renders a different surface than expected.
+
+## Browserless
+
+Use Browserless when:
+
+- the page is JS-rendered
+- Faraday fetch returns zero items but Chrome shows a valid repeated list
+- the site is bot-sensitive enough that static fetch is unreliable
+
+Local Browserless notes:
+
+- `html2rss-web` exposes a local endpoint at `ws://127.0.0.1:4002`
+- Browserless fetch tests require `BROWSERLESS_IO_WEBSOCKET_URL`
+- custom websocket endpoints also require `BROWSERLESS_IO_API_TOKEN`
+
+Do not default the whole repo to Browserless. Use it only for configs that need it.
+
+## Command Assumptions
+
+Assume the `html2rss` CLI is available on `PATH` when working against the sibling core repo.
+
+- Use `html2rss ...` in examples and one-off validation commands.
+- If the CLI is not installed globally in the current environment, run the equivalent command from the sibling `html2rss/` checkout, typically `bundle exec exe/html2rss ...`.
+- In this repo, keep using `make ...` and `bundle exec rspec ...` because those are the implemented entrypoints.
+
+## Fast Path
+
+1. Find the cleanest stable candidate URL.
+2. Inspect the DOM in Chrome MCP before writing selectors.
+3. Create the YAML with the schema modeline and minimal selectors.
+4. Validate the single file with the core CLI.
+5. Generate a live feed with the core CLI.
+6. Tighten selectors until the feed output is clean.
+7. Run repo validation and non-fetch tests.
+8. Run the appropriate fetch lane:
+   - plain fetch for static or Faraday-backed configs
+   - Browserless fetch for JS-heavy or Browserless-backed configs
+
+## Quality Gate
+
+For every new or changed config, verify in this order.
+
+1. Single-file runtime validation in the core repo:
+
+```bash
+cd ../html2rss
+html2rss validate /abs/path/to/config.yml
+```
+
+2. Single-file live feed generation in the core repo:
+
+```bash
+cd ../html2rss
+html2rss feed /abs/path/to/config.yml
+```
+
+3. Repo-wide validation in this repo:
+
+```bash
+make validate
+```
+
+4. Repo non-fetch tests in this repo:
+
+```bash
+make test
+```
+
+5. Focused fetch verification:
+
+- Faraday-backed candidate:
+
+```bash
+bundle exec rspec --tag fetch --example 'example.com/feed.yml' spec/html2rss/configs_dynamic_spec.rb
+```
+
+- Browserless-backed candidate:
+
+```bash
+BROWSERLESS_IO_WEBSOCKET_URL=ws://127.0.0.1:4002 \
+BROWSERLESS_IO_API_TOKEN=... \
+bundle exec rspec --tag fetch --example 'example.com/feed.yml' spec/html2rss/configs_dynamic_spec.rb
+```
+
+6. If fetch still fails, decide explicitly whether:
+
+- selectors are wrong
+- the page needs Browserless
+- the chosen surface is too noisy or too dynamic
+- the candidate should be downgraded or dropped
+
+## Runtime Debugging
+
+Use the core CLI as the authority for single-config debugging. The quickest loop is:
+
+1. `validate`
+2. `feed`
+3. inspect the RSS for zero items, nav/footer leakage, duplicates, relative URLs, or noisy descriptions
+4. adjust selectors
+5. rerun
+
+If Browserless works but Faraday does not, keep the config narrow and classify it as Browserless-backed instead of trying to rescue it with brittle tweaks.
+
+## Auto-Source
+
+Use `auto` for reconnaissance, not as proof that a config is ready.
+
+```bash
+cd ../html2rss
+html2rss auto 'https://example.com'
+```
+
+Use it to:
+
+- discover likely repeated item selectors
+- compare Faraday and Browserless behavior quickly
+- decide whether a site belongs in the curated set at all
+
+Do not ship raw auto-sourced output without manual tightening.
+
+## Drop Or Downgrade
+
+Drop or defer when:
+
+- the page stays noisy after reasonable selector tightening
+- the site already offers first-party RSS and this config adds little curated value
+- the page depends on unstable interaction flows that are not worth encoding
+
+Downgrade when:
+
+- a narrower subpath is much cleaner than the flagship page
+- the config is acceptable without descriptions or dates
+- month-level dates are the best the source offers
+
+## Reporting
+
+When finishing config work, report:
+
+- files changed
+- accepted configs
+- downgraded configs and why
+- dropped or deferred candidates and why
+- commands actually run
+- residual risks, especially selector drift, localization dependence, or Browserless dependence