feat: 日常增量 - 小红书配图/舆情记录/日报/草稿归档

skills/feed-to-md/SKILL.md

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+---
+name: feed-to-md
+title: Feed to Markdown
+description: Convert RSS or Atom feed URLs into Markdown using the bundled local converter script. Use this when a user asks to turn a feed URL into readable Markdown, optionally limiting items or writing to a file.
+metadata: {"clawdbot":{"emoji":"📰","requires":{"bins":["python3"]}}}
+---
+
+# RSS/Atom to Markdown
+
+Use this skill when the task is to convert an RSS/Atom feed URL into Markdown.
+
+## What this skill does
+
+- Converts a feed URL to Markdown via a bundled local script
+- Supports stdout output or writing to a Markdown file
+- Supports limiting article count and summary controls
+
+## Inputs
+
+- Required: RSS/Atom URL
+- Optional:
+  - output path
+  - max item count
+  - template preset (`short` or `full`)
+
+## Usage
+
+Run the local script:
+
+```bash
+python3 scripts/feed_to_md.py "<feed_url>"
+```
+
+Write to file:
+
+```bash
+python3 scripts/feed_to_md.py "https://example.com/feed.xml" --output feed.md
+```
+
+Limit to 10 items:
+
+```bash
+python3 scripts/feed_to_md.py "https://example.com/feed.xml" --limit 10
+```
+
+Use full template with summaries:
+
+```bash
+python3 scripts/feed_to_md.py "https://example.com/feed.xml" --template full
+```
+
+## Security rules (required)
+
+- Never interpolate raw user input into a shell string.
+- Always pass arguments directly to the script as separate argv tokens.
+- URL must be `http` or `https` and must not resolve to localhost/private addresses.
+- Every HTTP redirect target (and final URL) is re-validated and must also resolve to public IPs.
+- Output path must be workspace-relative and end in `.md`.
+- Do not use shell redirection for output; use `--output`.
+
+Safe command pattern:
+
+```bash
+cmd=(python3 scripts/feed_to_md.py "$feed_url")
+[[ -n "${output_path:-}" ]] && cmd+=(--output "$output_path")
+[[ -n "${limit:-}" ]] && cmd+=(--limit "$limit")
+[[ "${template:-short}" = "full" ]] && cmd+=(--template full)
+"${cmd[@]}"
+```
+
+## Script options
+
+- `-o, --output <file>`: write markdown to file
+- `--limit <number>`: max number of articles
+- `--no-summary`: exclude summaries
+- `--summary-max-length <number>`: truncate summary length
+- `--template <preset>`: `short` (default) or `full`