Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add xberg-io/crawlberg --skill crawlberg-mapping-urlsgit clone --depth 1 https://github.com/xberg-io/crawlbergWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/xberg-io/crawlberg/crawlberg-mapping-urls)<a href="https://agentmods.dev/skills/xberg-io/crawlberg/crawlberg-mapping-urls"><img src="https://agentmods.dev/badge/skills/xberg-io/crawlberg/crawlberg-mapping-urls/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/xberg-io/crawlberg/crawlberg-mapping-urls"><img src="https://agentmods.dev/badge/skills/xberg-io/crawlberg/crawlberg-mapping-urls.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00059 | $0.00933 |
| Opus 5.5 | $0.00024 | $0.00373 |
| Sonnet 5.5 | $0.00012 | $0.00187 |
| Haiku 4.5 | $0.00006 | $0.00093 |
Grade A, and why
crawlberg-mapping-urls scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Mapping URLs
crawlberg map <url> discovers the URLs a site exposes without rendering or
extracting any page content. It reads sitemap.xml (including nested
sitemaps), then falls back to link extraction from the seed page. Use it to
plan a crawl, audit a site's surface, or feed a URL list into another tool.
Quick recipe
crawlberg map https://example.com --limit 500 --search docs --format markdown
Markdown output prints one URL per line — convenient to pipe into a file or a
follow-up crawl. JSON output (default) returns a structured MapResult.
Flag surface
| Flag | Default | Purpose |
|---|---|---|
--limit |
— | Maximum number of URLs to return. Unbounded if unset. |
--search |
— | Case-insensitive substring filter on discovered URLs. |
--respect-robots-txt |
off | Honour robots.txt. Pass it for any third-party host. |
--format |
json |
json (full MapResult) or markdown (one URL per line). |
--timeout |
30000 |
Per-request timeout in ms. |
--browser-mode |
auto |
auto, always, never — see the headless-fallback skill. |
--browser-endpoint |
— | External CDP ws:// URL. |
--config |
— | Inline JSON or @file.json for the full CrawlConfig. |
map takes a single seed URL positionally. There is no --depth or
--max-pages here — those bound a crawl, not a map. Scope is the seed host's
sitemaps plus links found on the seed page; bound the result with --limit and
narrow it with --search.
How discovery works
- Fetch and parse
sitemap.xml, following nested<sitemapindex>entries. - If no sitemap (or a thin one), extract links from the seed page's HTML.
- Apply the
--searchsubstring filter (case-insensitive), then--limit.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 3d ago First seen · 98 lines · 59 tokens per session scan A e47b8a4f8450
crawlberg-mapping-urls is a skill published in the GitHub repository xberg-io/crawlberg (185 stars, last pushed yesterday), licensed MIT. It adds 59 tokens to every session and 933 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-15.
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