crw-dynamic-search

crw-dynamic-search is a skill for Claude Code from us/crw. It costs 143 tokens per session (3,685 once invoked), scanned A, original, AGPL-3.0.

A skill for searching the web and extracting selected page content with fastCRW while keeping unrelated page markup out of the agent's working context.

In plain words
What is it for?
Searching for information, filtering results, scraping specific content, and carrying out research tasks that need focused page extracts.
Why use it?
It reduces the time and context space lost to raw HTML, navigation elements, and other irrelevant webpage material.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the fastcrw plugin — 15 skills, 2 MCP servers shipped together

Good fit Searching for information, filtering results, scraping specific content, and carrying out research tasks that need focused page extracts.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/us/crw/crw-dynamic-search
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 us/crw --skill crw-dynamic-search
Clone the repo
git clone --depth 1 https://github.com/us/crw

Made for: Claude Code.

Or install fastcrw, the plugin that ships this one along with the rest of its 15 skills, 2 MCP servers.

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 crw-dynamic-search

README.md
[![agentmods](https://agentmods.dev/badge/skills/us/crw/crw-dynamic-search/github.svg)](https://agentmods.dev/skills/us/crw/crw-dynamic-search)
Your own site
<a href="https://agentmods.dev/skills/us/crw/crw-dynamic-search"><img src="https://agentmods.dev/badge/skills/us/crw/crw-dynamic-search/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 crw-dynamic-search

Your own site · 80×15
<a href="https://agentmods.dev/skills/us/crw/crw-dynamic-search"><img src="https://agentmods.dev/badge/skills/us/crw/crw-dynamic-search.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 143 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,685 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Memory Poisoning · line 55
    Skill attempts to fill the context window with filler content, displacing legitimate instructions and safety constraints. This can degrade agent performance or bypass safety boundaries.
    Fix: Implement context-window management that detects and rejects padding or stuffing attempts. Prioritize system instructions over user-injected content.
How audits are shown
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 $0.00143 $0.03685
Opus 5 $0.00072 $0.01843
Sonnet 5 $0.00029 $0.00737
Haiku 4.5 $0.00014 $0.00368

Measured 9d ago against content hash ce1411a5f59d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

crw-dynamic-search 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

raw = subprocess.check_output(
skills/crw-dynamic-search/SKILL.md · 442 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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 · 442 lines · 143 tokens per session scan A ce1411a5f59d

Subscribe to this mod's changes

crw-dynamic-search is a skill published in the GitHub repository us/crw (959 stars, last pushed today), licensed AGPL-3.0. It adds 143 tokens to every session and 3,685 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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