add blog monitor skill

[TylerMSFT]

C++ blog monitor skill.
Call it with /cpp-blog-monitor last two months, or /cpp-blog-monitor Jan 2026 to March 2026, etc.
Summarizes the C++ Dev blog posts. Keeps track of the ones its pulled down so it doesn't repeat work.
It produces a markdown doc of the summary in your %temp% directory, e.g. BlogSummaries-8-17-2026.md
In addition to having the summary, I can use it with AI to look for doc holes.

[Copilot]

Pull request overview

Adds a new cpp-blog-monitor skill to help users monitor the Microsoft C++ Team Blog over a requested date range, summarize unseen posts, and persist both a “reported posts” ledger and daily markdown summary output in the OS temp directory.

Changes:

• Added a new Skill definition (SKILL.md) describing how to run the monitor, summarize posts, and record deduplication state.
• Added a Python helper script to discover posts via the WordPress API, record reported posts in an atomic ledger, and append per-post markdown summaries to a daily temp file.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
CopilotStore/docs-cpp/skills/cpp-blog-monitor/SKILL.md	Defines the cpp-blog-monitor workflow, expected outputs, and deduplication behavior.
CopilotStore/docs-cpp/skills/cpp-blog-monitor/scripts/check_cpp_blog.py	Implements post discovery, ledger management, and atomic summary file writing.

Suppressed comments (3)

CopilotStore/docs-cpp/skills/cpp-blog-monitor/scripts/check_cpp_blog.py:133

• When parsing explicit ranges (<start> to <end>), the end endpoint should be interpreted as the inclusive end of that endpoint's month when the user supplies a month-only value like March 2026. Otherwise Jan 2026 to March 2026 would resolve to Mar 1 rather than Mar 31.

    elif match := re.fullmatch(r"(.+?)\s+to\s+(.+)", normalized):
        start, through = parse_calendar_date(match.group(1)), parse_calendar_date(match.group(2))

CopilotStore/docs-cpp/skills/cpp-blog-monitor/scripts/check_cpp_blog.py:350

• save-summary parses --date-through with parse_calendar_date(...). After adding support for month-only endpoints, --date-through should be parsed with the inclusive end-of-month behavior so saved reports reflect the resolved inclusive endpoints consistently.

    start = parse_calendar_date(args.date_from)
    through = parse_calendar_date(args.date_through)

CopilotStore/docs-cpp/skills/cpp-blog-monitor/scripts/check_cpp_blog.py:230

• fetch_api_page assumes the X-WP-TotalPages header is always a valid integer. If the header is missing or malformed, int(...) can raise ValueError and bypass the MonitorError wrapping, producing a raw traceback instead of a user-actionable JSON error.

        with urllib.request.urlopen(request, timeout=timeout) as response:
            data = json.loads(response.read().decode("utf-8"))
            total_pages = int(response.headers.get("X-WP-TotalPages", "1"))
            return data, total_pages

---

💡 Add a code-review agent skill or configure MCP servers for context-aware, tailored reviews. Learn more in the docs.