feat(newsletter): report post entry tally after each URL add

.claude/skills/mt-add-image/SKILL.md

@@ -84,7 +84,9 @@ Create `### Bonus` / `**Images:**` if missing.
 📄 content/post/YYYY/MM/DD/index.md
 🏷️  label: "[label]"  (source: candidate-pick | caption | user-input; post: [postTitle])
 🖼️  [clean_image_url]
+📊 [tally]
 ```
+The tally comes from `post-stats` — see *Post tally* in the shared post mechanics.
 
 ## Checklist
 

.claude/skills/mt-add-post/SKILL.md

@@ -35,7 +35,9 @@ Trust `route: article`; skip if `duplicate` or not `accessible`.
 ✅ Article added to Newsletter #[number]
 📄 content/post/YYYY/MM/DD/index.md
 🔗 [clean_url]
+📊 [tally]
 ```
+The tally comes from `post-stats` — see *Post tally* in the shared post mechanics.
 
 ## Checklist
 

.claude/skills/mt-add-url/SKILL.md

@@ -59,10 +59,19 @@ Act on the user's choice. If they choose add/update, proceed to design that skil
 
 ### 5. Final report
 
+Close with the target post's TL;DR tally, then the per-URL detail. Read the tally from the post itself so it reflects everything the post now holds, not just this batch:
+
+```bash
+go run ./scripts/newsletter post-stats content/post/YYYY/MM/DD/index.md
+```
+
 Aggregate across all URLs:
 ```
 ✅ Newsletter URL Dispatch Complete
 
+📊 Newsletter #[number]: [articles] articles · [videos] videos · [images] images
+   (omit zero counts; documents too when present)
+
 ✅ Dispatched: [count]
    - [count] → mt-add-post (articles)
    - [count] → mt-add-video (YouTube)
@@ -75,6 +84,8 @@ Aggregate across all URLs:
    - [url] (route: [route]): [user decision]
 ```
 
+The tally is report-only — never write it into `index.md`. See *Post tally* in `references/newsletter-post-mechanics.md`.
+
 ## Notes
 
 - Handlers (`mt-add-post`, `mt-add-video`, `mt-add-image`) remain directly invocable for single-purpose use, but `mt-add-url` is the normal entry point when a user pastes a URL.

.claude/skills/mt-add-url/references/newsletter-post-mechanics.md

@@ -83,6 +83,23 @@ If the post has **no `### Bonus`** yet:
 ```
 When a subsection (e.g. `**Videos:**`) already exists, append under it; otherwise create it. Keep subsections in this order: **Images** → **Videos** → **Documents**.
 
+## 4a. Post tally (report line)
+
+After every successful insertion, report the target post's running totals so the user can see what the post now holds:
+
+```bash
+go run ./scripts/newsletter post-stats content/post/YYYY/MM/DD/index.md
+```
+Output (JSON): `{ post, newsletter, articles, images, videos, documents, total }`.
+
+Render it as a single TL;DR line in the handler's report, omitting zero counts:
+
+```
+📊 4 articles · 2 videos · 1 image
+```
+
+Use the counts the command returns — do not tally by hand. This is a **report-only** line: never write it into `index.md`.
+
 ## 5. Post content language guidelines
 
 These rules apply only to text written into `content/post/**/index.md`. Keep user-facing questions, status updates, reports, and final responses in English unless the user explicitly requests another language.

.claude/skills/mt-add-video/SKILL.md

@@ -48,7 +48,9 @@ A clean YouTube URL (passed by `mt-add-url`, or given directly).
    ✅ Video added to Newsletter #[number] (Bonus → Videos)
    📄 content/post/YYYY/MM/DD/index.md
    🎬 [Vietnamese title] — [clean_url]
+   📊 [tally]
    ```
+   The tally comes from `post-stats` — see *Post tally* in the shared post mechanics.
 
 ## Checklist