Agent Skills: Link Reader

Link Reader

Read content from URLs that block direct web fetching by routing through proxy APIs.

Supported Platforms

Twitter / X

URL patterns: twitter.com/*/status/*, x.com/*/status/*, twitter.com/*/article/*, x.com/*/article/*

Proxy: FxTwitter API (api.fxtwitter.com)

Steps:

1. Extract the path after the domain (e.g., /trq212/status/1234567890)
2. Fetch https://api.fxtwitter.com{path} using WebFetch
3. Parse the JSON response
4. Format based on content type (see below)

Regular Tweets

The response JSON has shape: { tweet: { text, author, likes, retweets, ... } }

Format as:

**@{author.screen_name}** ({author.name})

{tweet.text}

{if media.photos: list image URLs}
{if media.videos: list video thumbnail URLs}
{if quote: show quoted tweet inline, indented}

Likes: {likes} · Retweets: {retweets} · Views: {views}
{created_at}

Twitter/X Articles

When tweet.article is present, the tweet is an article (long-form post). The article content uses Draft.js block format.

The article object contains:

• title — article title
• cover_image — hero image metadata (use original_img_url)
• content.blocks[] — array of content blocks
• content.entityMap — links and media referenced by blocks

Converting blocks to markdown:

Each block has a type and text:

• unstyled → plain paragraph
• header-one → # heading
• header-two → ## heading
• header-three → ### heading
• blockquote → > quote
• code-block → fenced code block
• unordered-list-item → - list item
• ordered-list-item → 1. list item
• atomic → look up in entityMap for embedded media/links

Resolving entity ranges:

Each block may have entityRanges: [{ key, offset, length }]. Look up content.entityMap[key]:

• If type: "LINK" → wrap the text span in [text](url) using data.url
• If type: "IMAGE" → insert ![](data.src)

Resolving inline styles:

Each block may have inlineStyleRanges: [{ style, offset, length }]:

• BOLD → **text**
• ITALIC → *text*
• CODE → `text`

Format the full article as:

# {article.title}

**@{author.screen_name}** · {article.created_at}

{converted markdown content}

---
Likes: {likes} · Retweets: {retweets} · Views: {views}

Reddit

URL patterns: reddit.com/r/*/comments/*, old.reddit.com/r/*/comments/*

Proxy: Append .json to the Reddit URL path

Steps:

1. Normalize URL to https://www.reddit.com/...
2. Remove any trailing query params, ensure path ends with /
3. Append .json to the path
4. Fetch using WebFetch
5. The response is an array of two listings:
   • [0].data.children[0].data → the post
   • [1].data.children[*].data → top-level comments

Format as:

**r/{subreddit}** · u/{author} · {score} points

# {title}

{selftext_html or selftext, or url if link post}

---
Top comments:

**u/{comment_author}** ({score} pts)
{comment body}

Show the top 5 comments by default. Offer to show more if the user asks.

Adding New Platforms

To extend this skill for a new platform:

1. Add a new section with URL patterns and proxy strategy
2. Document the JSON response shape
3. Add formatting instructions

General Guidelines

• Always attempt the proxy fetch — do not tell the user you can't access the URL without trying first
• If the proxy returns an error, explain clearly (e.g., "Tweet not found", "Account is private")
• For tweet threads, fetch the main tweet first and offer to follow the conversation
• Present image/video URLs directly so the user can open them
• Keep formatting clean and focused on the content