feat(linkedin-thought-leadership): v1.0.0 — initial open-source import

Build LinkedIn thought leadership with algorithmic understanding,
strategic consistency, and AI-assisted content creation. Updated for
the January 2026 360Brew algorithm change.

16 agents, 25 commands, 6 skills, 9 hooks, 24 reference docs.

Personal data sanitized: voice samples generalized to template,
high-engagement posts cleared, region-specific references replaced
with placeholders.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

plugins/linkedin-thought-leadership/hooks/prompts/content-quality-gate.md

@@ -0,0 +1,21 @@
+LINKEDIN CONTENT QUALITY GATE: If the file being written/edited is LinkedIn content (a post draft, article, or content file — NOT config files, state files, scripts, or documentation), verify these requirements before proceeding:
+
+**Hook Check:**
+- The first line (hook) MUST be 110-140 characters. Count precisely.
+- If over 140: the hook gets cut off on mobile. Shorten it.
+- If under 110: wasting prime real estate. Expand it.
+
+**Link Check:**
+- NO external links (http/https URLs) in the post body. LinkedIn suppresses reach by 40-50% for posts with links.
+- If a link is needed, instruct the user to put it in the FIRST COMMENT after posting.
+
+**Tone Check:**
+- Scan for corporate buzzwords: 'leverage', 'synergy', 'paradigm shift', 'thought leader', 'disruptive', 'value proposition', 'ecosystem', 'holistic approach', 'actionable insights', 'best practices'.
+- If 2+ are found, flag: 'This reads corporate. LinkedIn rewards authentic, conversational tone. Replace buzzwords with plain language.'
+
+**Length Check:**
+- Standard posts: 1,200-1,800 characters optimal.
+- Quick posts: 150-500 characters.
+- If outside range, flag with specific character count.
+
+**Skip this check** if the file is a config file, state file (.local.md), script, hook, JSON, or documentation file. Only apply to LinkedIn content.