Borrowing it
Nothing to install: this file belongs to hraness/wrench. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/hraness/wrench/main/.agents/skills/save-url-kb/SKILL.mdgit clone --depth 1 https://github.com/hraness/wrenchWrote 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/hraness/wrench/save-url-kb)<a href="https://agentmods.dev/skills/hraness/wrench/save-url-kb"><img src="https://agentmods.dev/badge/skills/hraness/wrench/save-url-kb.svg" alt="Measured on agentmods" 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 | $0.00111 | $0.02133 |
| Opus 5 | $0.00056 | $0.01066 |
| Sonnet 5 | $0.00022 | $0.00427 |
| Haiku 4.5 | $0.00011 | $0.00213 |
Grade A, and why
save-url-kb scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
100% identical to save-url-kb — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 171 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Capture web content
Use the installed kb CLI. Check the available local routes when the capture may need a browser or optional media tools:
kb doctor
kb adapters
Resolve <vault> to the directory containing its authored or managed
index.md front door, then set
the shell-local KB_ROOT to that path (KB_ROOT=kb from a typical repository
root, or KB_ROOT=. from inside the vault). Pass --output "$KB_ROOT/articles"
to captures and read the vault's applicable agent instructions before writing.
Pick the read surface
Start ordinary URL capture with the layered default:
kb clip https://example.com/article --output "$KB_ROOT/articles"
The command tries stable structured data, bounded HTTP extraction, and rendered-browser fallback as needed. If those routes produce no usable source material, URL capture may perform one read-only lookup for an existing Archive.today-family snapshot. It never submits the source for archival. A useful structured provider result, including a partial Hacker News result, remains authoritative over the archive fallback.
When the source is already open in a signed-in browser, read the current tab in place:
kb clip current --browser-live --output "$KB_ROOT/articles"
kb clip current --cdp 9222 --output "$KB_ROOT/articles"
For --browser-live, first enable Chrome's local debugging connection at chrome://inspect/#remote-debugging (Chrome 144+). If Chrome was launched with an explicit loopback debugging port, pass that numeric port to --cdp instead.
Current-tab capture derives the source URL from the attached tab. It does not navigate, click, type, submit, upload, or scroll that tab.
To open a URL with existing browser state, select a profile. A path-backed profile is copied into a temporary snapshot for the capture, so the source profile remains unchanged:
kb clip https://example.com/member/article --browser-profile "$KB_CAPTURE_PROFILE" --output "$KB_ROOT/articles"
Use cookie-backed HTTP when the page does not require browser-only local state, or import a page already saved from any browser:
What ships with it
4 files 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.
- 7d ago First seen · 171 lines · 111 tokens per session scan A 496e2d1bb577
save-url-kb is a skill published in the GitHub repository hraness/wrench (4 stars, last pushed today), licensed MIT. It adds 111 tokens to every session and 2,133 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to save-url-kb, differing in 0 lines, and is treated as a copy.
Other skills, from other repositories
save-url-kb
Capture public or signed-in web content into a local Markdown knowledge base as an auditable source bundle with local assets. Use when the user asks to clip, save, scrape, or archive an article, social post or thread, GitHub or Discourse discussion, feed, inbox, private document, WhatsApp conversation, YouTube page…
save-pdf-kb
Convert a local or public remote PDF into an auditable Markdown knowledge-base bundle with the original document, inferred headings, page provenance, OCR text, image metadata, and local visual assets. Use when the user asks to save, import, archive, extract, or turn a PDF into KB Markdown, especially scanned documents…
anywrite
Use this skill whenever the user mentions "anywrite" by name, or mentions Anytype, asks to create/update/search/organize notes, tasks, or PKM objects in Anytype, or wants to upload files, manage properties/tags/types, or chat inside an Anytype space. Covers all 52 endpoints of the Anytype local API (spaces, objects…
liteparse
Use this skill when the user asks to parse, perform multi-format document conversion or spatially extract text from an unstructured file (PDF, DOCX, PPTX, XLSX, images, etc.) locally without cloud dependencies.
treatment-plans
Generate concise (3-4 page), focused medical treatment plans in LaTeX/PDF format for all clinical specialties. Supports general medical treatment, rehabilitation therapy, mental health care, chronic disease management, perioperative care, and pain management. Includes SMART goal frameworks, evidence-based…
markitdown
Convert files and office documents to Markdown. Supports PDF, DOCX, PPTX, XLSX, images (with OCR), audio (with transcription), HTML, CSV, JSON, XML, ZIP, YouTube URLs, EPubs and more.