x-mcp SKILL.md skillA
x-mcp from starchild-ai-agent/official-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add starchild-ai-agent/official-skills/x-mcp@v1.5.2Pins v1.5.2 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- starchild-ai-agent/official-skills
- Path
x-mcp/SKILL.md- Versions recorded
- 5
- Latest version
- v1.5.2, committed Jun 30, 2026
- First version recorded
- Jun 30, 2026
- Size
- 25,844 bytes
- Repository stars
- 32
- License
- none declared
Connect a user's own X (Twitter) dev app (BYOK) for the official X API MCP (reads) plus X v2 REST writes — post, reply, like, retweet, DM. Use when the user wants to act on X with their OWN X account or app — search, read timeline/users/news/trends/bookmarks via MCP, and post/reply/like/retweet/DM via REST. Walks through OAuth 2.0 setup in the X portal, xurl CLI registration, headless OAuth (user pastes the redirect URL back), the client-not-enrolled / Pay-per-use trap, the token-expiry…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# X API — MCP (reads) + REST (writes), BYOK Connects the user's **own** X developer app so this agent can: - **Read** via the official hosted **X MCP** (`https://api.x.com/mcp`) — 24 tools - **Write** via the **X v2 REST API** (`https://api.x.com/2/...`) — post / delete / like / retweet / reply / DM **Why BYOK (not a shared Starchild app):** X write access is per-app rate-limited (~app-wide caps), pay-per-use billed to the app owner, and TOS liability sits with the app owner. A shared app = single point of failure + neighbors starving each other + concentrated billing + content-moderation liability. So every user brings their own app + OAuth token. The token lives only on this machine (`~/.xurl`, symlinked to the persistent workspace — see STEP 3), never proxied. ## When to use this skill Use when the user wants to act on X with their OWN account/app: - "Connect my X / Twitter account so you can post for me" - "Set up the X API with my dev app", "use my X developer keys" - "Search recent tweets / read my timeline / read mentions" (with their own app) - "Post / reply / like / retweet / DM on X as me" - "Bookmark this tweet" Do NOT use — pick the right alternative instead: …
Read the whole file at its exact version.
How to install
mdr add starchild-ai-agent/official-skills/x-mcp@sha256:af8626cf9dfff44dThe line at the top of this page pins the label v1.5.2, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_s7qafmwz2utkis4y)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, all committed on Jun 30, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.5.2 latest | 2026-06-30 | 43e44b7 | 25,844 B | A | view · diff |
| v1.5.2 | 2026-06-30 | ff1227c | 25,256 B | A | view · diff |
| v1.5.2 | 2026-06-30 | c46e062 | 24,040 B | A | view · diff |
| v1.5.1 | 2026-06-30 | 5da730b | 22,088 B | A | view · diff |
| v1.5.0 | 2026-06-30 | 172e5ea | 21,143 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (25844 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
starchild-ai-agent/official-skills · 32 stars · license none declared · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_s7qafmwz2utkis4y GET https://markdownregistry.com/api/v1/resolve?ref=starchild-ai-agent/official-skills/x-mcp GET https://markdownregistry.com/api/v1/blob/af8626cf9dfff44d3a24246831f099aaef57c863a68b5b9840b710add4502396
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.