travsteward/openwriter · skills/openwriter/SKILL.md

openwriter skillA

openwriter is agent-read markdown (skill) from travsteward/openwriter: OpenWriter — the writing surface for AI agents. A markdown-native rich text editor where agents write via MCP tools and users accept or reject changes in-browser. 40 core MCP tools for document editing, multi-doc workspaces, and organization, plus 21 publish platform tools for newsletter, social posting, and scheduling. Tweet compose mode for drafting replies/QTs with pixel-accurate X/Twitter UI. Plain .md files on disk — no database, no lock-in. Use when user says: "open writer", "openwriter",.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add travsteward/openwriter/openwriter@v0.21.0
Exact content
mdr add travsteward/openwriter/openwriter@sha256:7db87f770de7f98d

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_yow2uvuicphztznv.svg)](https://markdownregistry.com/a/art_yow2uvuicphztznv)

0 badge views in 30 days

Versions

versioncommittedcommitsizeaudit
v0.21.0 latest2026-09-08 2b9a509 51,965 BA view · diff
v0.20.02026-09-07 2530bf9 54,122 BA view · diff
v0.19.02026-07-09 0e7233b 53,291 BA view · diff
v0.18.02026-06-11 56b80ff 52,303 BA view · diff
v0.18.02026-06-10 de5c101 52,343 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (51965 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

GitHub

travsteward/openwriter · 27 stars · license MIT · pushed 2026-09-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_yow2uvuicphztznv
GET https://markdownregistry.com/api/v1/resolve?ref=travsteward/openwriter/openwriter
GET https://markdownregistry.com/api/v1/blob/7db87f770de7f98d8278dd57e5039897567cc59870260077c23a88489b6fdf0a