web-archiving

web-archiving is a skill for Claude Code from buriedsignals/spotlight. It costs 43 tokens per session (2,698 once invoked), scanned A, original, no licence file.

A web-archiving tool for saving evidence from websites before it changes or disappears. It creates a first-party snapshot and screenshot, and can also use third-party archives while recording how the evidence was handled.

In plain words
What is it for?
Capturing web pages, screenshots, archive copies, and handling records for evidence.
Why use it?
It preserves a traceable record of online material for editorial review or legal use.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the spotlight plugin — 25 skills, 2 agents shipped together

Good fit Capturing web pages, screenshots, archive copies, and handling records for evidence.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/buriedsignals/spotlight/web-archiving
Install

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.

Any agent
npx skills add buriedsignals/spotlight --skill web-archiving
Clone the repo
git clone --depth 1 https://github.com/buriedsignals/spotlight

Made for: Claude Code.

Or install spotlight, the plugin that ships this one along with the rest of its 25 skills, 2 agents.

Wrote 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.

agentmods badge for web-archiving

README.md
[![agentmods](https://agentmods.dev/badge/skills/buriedsignals/spotlight/web-archiving/github.svg)](https://agentmods.dev/skills/buriedsignals/spotlight/web-archiving)
Your own site
<a href="https://agentmods.dev/skills/buriedsignals/spotlight/web-archiving"><img src="https://agentmods.dev/badge/skills/buriedsignals/spotlight/web-archiving/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.

agentmods 80×15 button for web-archiving

Your own site · 80×15
<a href="https://agentmods.dev/skills/buriedsignals/spotlight/web-archiving"><img src="https://agentmods.dev/badge/skills/buriedsignals/spotlight/web-archiving.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,698 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00043 $0.02698
Opus 5 $0.00022 $0.01349
Sonnet 5 $0.00009 $0.00540
Haiku 4.5 $0.00004 $0.00270

Measured 9d ago against content hash 424acf14be96, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

web-archiving scanned grade A with 1 finding 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 9d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

Before any `execute-shell` call that uses a URL, timestamp, filename, or path, invoke `shell-safety` and validate values with `scripts/spotlight_safe.py`. Use `curl --get --data-urlencode` for URL parameters; do not inte
plugins/spotlight/skills/web-archiving/SKILL.md · 239 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

2 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.

Changes

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.

  1. 9d ago First seen · 239 lines · 43 tokens per session scan A 424acf14be96

Subscribe to this mod's changes

web-archiving is a skill published in the GitHub repository buriedsignals/spotlight (39 stars, last pushed today), with no licence file. It adds 43 tokens to every session and 2,698 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories

source-verification

Walks through structured verification of sources, claims, images, video, and documents across five verification modes — visual media, documents, anonymous sources, expert credentials, and social media content — using the SIFT framework, forensic metadata inspection, deepfake indicators, C2PA Content Credentials, and…

ur-grue/autopunk-media-skills · 82 tokens

ethics-review-checklist

Generate a story-specific editorial ethics checklist: consent verification, harm assessment, source protection, vulnerable-subject protocols, conflict-of-interest flags, and public interest justification — tailored to the story's specific risks.

ur-grue/autopunk-media-skills · 46 tokens

claim-verification-checklist

Generates a point-by-point checklist of every verifiable claim in a draft article, categorized by claim type and accompanied by the specific evidence needed to confirm each one.

ur-grue/autopunk-media-skills · 39 tokens

redact-output

This skill should be used when the user asks to "redact PII before publishing", "redact third-party names to initials in a findings note", "redact a note before it goes in the vault", "mask suspect / person-of-interest / minor names that landed in the reason fields", "keep the full un-redacted exhibit local / out of…

TimSimpsonJr/magpie · 150 tokens

archive-evidence

Use when a user receives a FOIA artifact (a released record, a document dump, an export) and wants to record its provenance and establish a chain of custody before any processing. This skill hashes the file on receipt, obtains an RFC 3161 trusted timestamp proving that hash existed at a time, writes an append-only…

TimSimpsonJr/magpie · 129 tokens

web-archiving

Web archiving and retrieval via Wayback Machine and Archive.today. Use to preserve content, reach dead pages, or save evidence.

jamditis/claude-skills-journalism · 31 tokens