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1.7 KiB
1.7 KiB
schema_version, workflow_id, intent, last_verified, source
| schema_version | workflow_id | intent | last_verified | source |
|---|---|---|---|---|
| 1.1 | read-story | read a HN story and its top-level comments | 2026-06-02 | global |
Goal
拿到一条 HN story 的:标题 / URL / score / author / 时间 / top-level comments 列表。
State signature
- entry: 任意 page,story id 或 URL 已知
- success: 拿到 story object + comments array
Best path
- adapter: opencli hackernews story
- adapter_health: healthy
- preconditions: story id 已知
- estimated_turns: 1
Fallback path
如果 adapter 抛 typed error / 空 result(触发 adapter_health_update: opencli hackernews story -> suspect):
opencli browser open https://news.ycombinator.com/item?id=<id>- action:expand_comment_tree in pages/item.md(如果有折叠)
opencli browser state拿 DOM- parse story header (
tr.athing[id="<id>"]) + comment tree (tr.comtrids 数组)
- estimated_turns: 3-4
Avoid
- 不要从 /news 列表 page 推断 story 内容(列表只有标题 + score,无评论)
- 不要 scrape 原文 URL(title link 指向外站,不是 HN 评论)
- 不要并发 fan-out 全 comment tree 走
item/<kid_id>.json(rate limit 风险;用 adapter 已 throttle)
Re-entry checkpoints
- 已 open /item?id=,DOM ready → step 2 起
- DOM 拿到但 expand 未做 → step 2 起
- story + comments 已收集 → 完成
State validation
- story.title 非空
- comments array 长度 ≥ 0(dead story 可能 0)
- 至少 story.by + story.time 字段存在
Stale markers
- HN HTML 结构非常稳(10+ 年不大改)
- Firebase API 是 read-only 公开服务,几乎不漂;endpoint:item 返回 schema 变化是大事件