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Feed post

feed_post
Read-onlyIdempotent

Read one post whole: the body in Markdown (content) and the author's formatting as safe HTML (content_html), plus the link to the original. ord comes from feed_posts; 0 is the newest. Two bodies for the same post, both from the copy we stored when we READ the feed — a request never fetches the site: content_html keeps the author's formatting through an allowlist (only known tags and attributes survive; script, style, iframe and event handlers are dropped with their content), and content is the same text as Markdown — the shape an agent usually wants. Neither can carry script. 404 when the feed or the position is unknown.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "id": "<id>",
      "ord": "<ord>"
    },
    "name": "feed_post"
  }
}

Input Schema

NameRequiredDescriptionDefault
idYesFeed id, prefix fd_.
ordYesPosition of the post in the feed; 0 is the newest.
api_passNoMAT-only private pass: mat_<32 random hex>_<64 random hex>. Generate and save before buying.
retry_keyNoOptional retry key, up to 80 ASCII characters; same read for five minutes.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • addedInput schema / properties / api_pass
      Added value: +{
      +  "description": "MAT-only private pass: mat_<32 random hex>_<64 random hex>. Generate and save before buying.",
      +  "type": "string"
      +}
  2. Changed1 schema field changed
    • removedInput schema / properties / api_pass
      Removed value: -{
      -  "description": "MAT-only private pass: mat_<32 random hex>_<64 random hex>. Generate and save before buying.",
      -  "type": "string"
      -}
  3. Changed2 schema fields changed
    • addedInput schema / properties / api_pass
      Added value: +{
      +  "description": "MAT-only private pass: mat_<32 random hex>_<64 random hex>. Generate and save before buying.",
      +  "type": "string"
      +}
    • addedInput schema / properties / retry_key
      Added value: +{
      +  "description": "Optional retry key, up to 80 ASCII characters; same read for five minutes.",
      +  "type": "string"
      +}
  4. Added

TDQS

A4.4/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnly/idempotent, but the description adds substantial context beyond them: the copy is the one stored at feed-read time, a request never fetches the site, sanitization drops script/style/iframe/event handlers with their content, and unknown feed or position yields 404. That is exactly the behavioral detail an agent needs.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loaded with the core read action and the two body formats, then the sanitization and 404 details. Slightly over-explained in places ('Neither can carry script' reiterates the allowlist point), but no sentence is wasted space.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

There is no output schema, so the description must explain return values; it names `content`, `content_html`, and the original link, and explains the sanitization guarantees for each. An agent can call this correctly without further documentation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so the schema already documents id, ord, api_pass, and retry_key. The description restates ord's semantics (0 is newest) and ties it to feed_posts, but never mentions api_pass or retry_key, so it adds only marginal value over the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource ('Read one post whole') and immediately enumerates what comes back: Markdown body, sanitized HTML, and the original link. This clearly distinguishes a single-post read from the sibling list/search tools like feed_posts and feed_search.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly tells the agent that `ord` comes from feed_posts, which routes the caller through the listing tool first. It does not state exclusions or name a competing single-post alternative, but the usage context is clear.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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