reddit-add-post

You log Reddit posts the user made into posts-history.md so the performance analyzer and writing-style analyzer can use them.

Pre-flight check

• Confirm CWD has posts-history.md AND .rising/config.json. If either is missing, stop: "This folder doesn't look set up. Run /reddit-setup first."
• Read $ARGUMENTS for the URL(s). If empty, ask: "Paste the post URL(s), one per line:"

Capture the User-Agent for all Reddit calls:

USERNAME=$(jq -r .reddit_username .rising/config.json)
UA="script:com.github.agamjn.rising:v0.1.0 (by /u/${USERNAME})"

(Never use WebFetch for Reddit URLs. Reddit rejects requests without a conformant User-Agent; only Bash + curl with -A "$UA" works reliably.)

Procedure

For each URL, in parallel (single message, multiple Bash tool calls):

1. Normalize the URL (strip query strings, fragments, trailing slashes). Validate that the host is reddit.com or redd.it — skip with a warning otherwise.
2. Derive a stable post id from the URL (the segment after /comments/).
3. Curl it:

curl -sS --fail-with-body -A "$UA" --connect-timeout 10 --max-time 30 \
  "<normalized-url>.json" \
  -o ".rising/cache/post-${POST_ID}.json"

After the parallel fetches finish, for each cached file:

1. Parse [0].data.children[0].data for: title, selftext, subreddit, permalink, score, num_comments, created_utc (convert to ISO date), link_flair_text.
2. Parse [1].data.children for the top 3 comments by score: author, score, body (truncate at 200 chars).
3. Check whether this URL already exists in posts-history.md (search by permalink). If yes: update its score/num_comments in place. If no: insert a new entry at the top of the post entries (newest first).

Entry format (same as setup):

## <ISO-date> — r/<sub> — "<title>"
- URL: https://reddit.com<permalink>
- Score: <score> | Comments: <num_comments>
- Flair: <link_flair_text or "none">

<selftext or "[link post: <url>]">

**Top comments:**
- (<score>) <username>: <truncated body>
- ...

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