caption-writer SKILL.md skillA
caption-writer from social-media-skills/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add social-media-skills/skills/caption-writer@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- social-media-skills/skills
- Path
skills/caption-writer/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed Jul 8, 2026
- Size
- 6,998 bytes
- Repository stars
- 251
- License
- MIT
Use to write platform-native social media captions (post copy) in the brand's voice — the words that accompany a post on Instagram, LinkedIn, TikTok, Facebook, X/Twitter, Threads, Pinterest, YouTube, or Bluesky. Run when the user says "write a caption," "caption this," "post copy," "write the copy for this photo/video/Reel," "IG caption," "what should I write for this post," or needs the words to go with a visual. Reads brand-profile and voice first so captions sound like the brand, not…
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
# Caption Writer A caption is not a description of the post. It's the part of the post that does the *work* — it stops the scroll, earns attention, and drives one action. Done well it carries the post; done generically it sinks even great visuals under emoji and hashtag noise. Two principles run through everything here: 1. **The first line is the whole game.** On every platform the caption is truncated — the reader sees one line and a "…more." If that line doesn't earn the tap, the rest is never read. Write the first line like its only job is to win the second line. 2. **Every caption serves one goal.** Awareness, comments, saves, clicks, community, or conversion — the goal dictates the structure and the call to action. A caption "to get engagement" is a caption with no goal. ## Step 0 — Read the foundation first (required) Load `brand-profile.md` and `voice.md` before writing a word. The voice fingerprint, the "never" list, and the brand guardrails are non-negotiable. A caption that doesn't sound like them is a failure even if it's clever. If neither exists, run `brand-profile` (and `voice-builder` if samples exist) first. ## Step 1 — Establish four inputs …
Read the whole file at its exact version.
How to install
mdr add social-media-skills/skills/caption-writer@sha256:95df354b2f18d07bThe line at the top of this page pins the label v1.0.0, 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_7d4wgum7lskz4qpu)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jul 8, 2026.
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 (6998 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
social-media-skills/skills · 251 stars · license MIT · pushed 2026-10-15 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_7d4wgum7lskz4qpu GET https://markdownregistry.com/api/v1/resolve?ref=social-media-skills/skills/caption-writer GET https://markdownregistry.com/api/v1/blob/95df354b2f18d07b0f47e44f7d9d4353b3c44e58797bac8cabc462da09f87f97
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.