share-assets

name	share-assets
description	Generates OG images and HN/GeekNews/LinkedIn/Twitter launch posts from a project README in a casual viral tone (NOT corporate/AI-sounding). Use when launching, posting "Show HN", or "공유용 자료", "런칭 포스트", "OG 이미지 만들어줘", "긱뉴스 글", "트윗 초안".
author	subinium
user-invocable	true
disable-model-invocation	true
allowed-tools	Read, Write, Bash
argument-hint	[--platform=hn|gn|linkedin|twitter|all] [--readme=<path>]

Share Assets

Generate launch/share artifacts from a project README. Casual, human, punchy tone — NOT corporate or AI-sounding (per global CLAUDE.md "Writing & Communications").

Arguments

• --platform=hn|gn|linkedin|twitter|all — which drafts to generate (default: all)
• --readme=<path> — source README (default: ./README.md)

Tone rules (HARD — these are non-negotiable per CLAUDE.md)

• NO em dashes used decoratively
• NO excessive exclamation marks (max 1 per post)
• NO filler ("I'm excited to share", "blown away by", "thrilled to announce")
• NO corporate speak ("at scale", "leverage", "synergy", "best-in-class")
• NO AI tells ("As a developer who...", "In today's world,...")
• DO write like a real person on a Friday afternoon
• DO lead with a specific number or surprising fact when one exists
• DO state what's interesting in 1 sentence before any context

Process

1. Read source

• Read the README at --readme (default ./README.md)
• Extract: project name, one-line description, key feature, install/usage, links, screenshots
• Read package.json / Cargo.toml for version, repo URL

2. Per-platform draft (parallel writes if --platform=all)

Hacker News (SHARE_HN.md):

• Title: noun phrase, ≤80 chars, NO version numbers in title (HN guideline), NO "Show HN:" prefix unless actual launch
• Body: 3-5 sentences. Lead with what's different. End with link.
• Sample: Title: A Claude Code plugin that verifies refactors with 4 checks before they ship

GeekNews (SHARE_GN.md) — Korean tech community:

• Title: 한국어, 80자 이내, 본질만
• Body: 본문은 한국어. 5-10 bullet points. 첫 줄은 "왜 만들었는가". 마지막 줄은 GitHub 링크.
• 톤: 캐주얼하지만 정확. 자기 자랑 톤 금지.

LinkedIn (SHARE_LINKEDIN.md):

• Body: 3 short paragraphs. Lead with a specific outcome or stat. End with a question or CTA.
• NO hashtag spam (max 3, all relevant)
• NO "I'm humbled to..." — say what happened directly

Twitter/X (SHARE_TWITTER.md):

• Single tweet ≤ 270 chars (leave room for link)
• Optional: 4-tweet thread variant if there are 3+ surprising things
• NO image alt text guidance — handle in OG asset

3. OG image (og.png)

Generate a 1200×630 social card. Two strategies:

• If satori + sharp are installed in cwd: emit a .tsx template, run npx tsx generate-og.tsx > og.png
• Otherwise: emit a fallback HTML template (og.html) the user can screenshot at 1200×630

Template structure:

• Title (24-48pt, max 2 lines)
• One-line description
• Author handle (top right)
• Repo URL (bottom)
• Background: solid dark + accent color from project (extract from logo if present)

4. Output index

Write SHARE.md summarizing all generated artifacts:

# Share kit — <project name>

| Platform | File | Notes |
|---|---|---|
| HN | SHARE_HN.md | <title> |
| GeekNews | SHARE_GN.md | <한글 제목> |
| LinkedIn | SHARE_LINKEDIN.md | (3 para) |
| Twitter | SHARE_TWITTER.md | (single + 4-tweet thread) |
| OG | og.png | 1200×630 |

## Suggested posting order
1. Twitter (immediate audience reaction)
2. HN (after 30min if Twitter resonates)
3. GeekNews (Korean audience, parallel to HN)
4. LinkedIn (next day, professional framing)

Constraints (SOFT, but enforce HARD on tone)

• Don't post anywhere — generate drafts only
• Don't fabricate stats / numbers (HARD)
• Don't include claims the README doesn't support (HARD)
• Korean response per global CLAUDE.md (LinkedIn/HN drafts in English; GN draft in Korean)
• If README is too sparse to generate good copy, return a list of questions instead of bad drafts