+# X & LinkedIn Content OS
+
+Strategy and operating system for building a repeatable, proof-backed publishing practice on X and LinkedIn.
+
+## When to use
+
+- You are starting or rebooting a professional social presence on X or LinkedIn
+- You need a system that turns project work into a steady content pipeline
+- You want to move beyond ad-hoc posting toward a structured publishing cadence
+- You are a builder, engineer, or founder who wants to share work-in-public
+- You need to coordinate content across X and LinkedIn without duplicating effort
+
+## When NOT to use
+
+- You need help with paid social ads or sponsored campaigns — this is organic only
+- You want a viral-at-all-costs growth hack — this is steady-state compounding
+- The platform is TikTok, YouTube, or Instagram — see platform-specific skills
+- You need brand-level governance for a team of 10+ contributors — use a CMS
+- You are ghostwriting for someone else with no access to their real work
+
+## Core concepts
+
+### Content pillars
+
+Pillars are 3–5 recurring themes that define what you are known for. Every post maps to exactly one pillar.
+
+| Pillar type | Example | Cadence hint |
+|-------------|---------|--------------|
+| Build log | "Shipped X this week" — demos, screenshots, architecture decisions | 2–3×/week |
+| Sharp take | Opinionated stance on industry topic backed by experience | 1×/week |
+| Playbook | Step-by-step how-to distilled from real work | 1×/week |
+| Signal boost | Curated link + your 2-sentence take on why it matters | 1–2×/week |
+| Personal proof | Metrics, before/after, lessons from failure | 1×/2 weeks |
+
+**Rule of thumb:** if you cannot explain a pillar in one sentence to a stranger, it is too vague.
+
+### Ranked backlog
+
+A single prioritized list of content ideas, scored by:
+
+\`\`\`
+score = (relevance_to_pillar × 3) + (proof_available × 2) + (timeliness × 1)
+\`\`\`
+
+Each item has: one-line hook, target pillar, platform (X / LinkedIn / both), proof artifact (screenshot, metric, link), and estimated effort (S / M / L).
+
+### Recurring series
+
−# Social Content OS
+Named series create audience expectation and reduce creative overhead:
+- **"Monday build log"** — what shipped, what broke, what is next
+- **"Friday link drop"** — 3 curated links with micro-takes
−Turn scattered notes, shipping updates, and product opinions into a coherent publishing system.
+- **"Deep dive Thursday"** — long-form LinkedIn article or X thread
−## Non-negotiables
+### Publishing workflow
+1. **Capture** — dump raw ideas into backlog within 2 minutes of occurrence
+2. **Score** — weekly 15-min session to rank top 7 backlog items
+3. **Draft** — write post body, attach proof artifact, tag pillar
+4. **Platform-fit** — adapt tone and format (X: punchy, threaded; LinkedIn: narrative, paragraph)
+5. **Schedule** — slot into calendar; mornings (7–9 AM local) for X, Tue/Wed/Thu for LinkedIn
+6. **Publish + engage** — post, then spend 15 min replying in the first hour
−1. Optimize for earned signal. Every idea maps to: claim, proof, implication, reply target
+7. **Measure** — weekly review of impressions, engagement rate, profile visits, follower delta
−2. Prefer artifact-backed content: screenshots, code, diagrams, benchmarks, launch notes
−3. Keep the mix weighted toward technical and product depth
−4. Treat non-public information as off-limits unless explicitly marked public
−5. Prefer recurring series over disconnected one-offs — repetition creates recognition
## Workflow
+
+### Step 1 — Define pillars
+
+Write 3–5 pillars. For each, list 3 example post ideas to validate the pillar is fertile.
+
+**Template:**
+