crw-self-host

crw-self-host is a skill for Claude Code from us/crw. It costs 71 tokens per session (3,176 once invoked), scanned B, original, AGPL-3.0.

Instructions for running a fastCRW API server on your own computer or infrastructure. An API server provides programmatic access to a service for other software.

In plain words
What is it for?
Running fastCRW as a single binary, with Docker or docker-compose, and configuring search backends, renderers, proxies, authentication, and language-model extraction.
Why use it?
It helps you understand the available deployment options and configure the server without relying on a hosted setup.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

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

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.

agentmods
npx agentmods add skills/us/crw/crw-self-host
Any agent
npx skills add us/crw --skill crw-self-host
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-self-host

README.md
[![agentmods](https://agentmods.dev/badge/skills/us/crw/crw-self-host.svg)](https://agentmods.dev/skills/us/crw/crw-self-host)
Your own site
<a href="https://agentmods.dev/skills/us/crw/crw-self-host"><img src="https://agentmods.dev/badge/skills/us/crw/crw-self-host.svg" alt="Measured on agentmods" height="20"></a>
Per session 71 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,176 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. Scan, not verified.
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 $0.00071 $0.03176
Opus 5 $0.00036 $0.01588
Sonnet 5 $0.00014 $0.00635
Haiku 4.5 $0.00007 $0.00318

Measured 6d ago against content hash 1579ce4e9f06, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade B, and why

crw-self-host scanned grade B with 2 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 6d 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

curl -fsSL https://apt.fastcrw.com/gpg.key | sudo gpg --dearmor -o /usr/share/keyrings/crw.gpg

Makes network callslowCapability

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

allowed-tools: Bash(crw:*) Bash(curl:*) Bash(docker:*) Bash(cargo:*) Read
skills/crw-self-host/SKILL.md · 330 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. 6d ago First seen · 330 lines · 71 tokens per session scan B 1579ce4e9f06

Subscribe to this mod's changes

crw-self-host is a skill published in the GitHub repository us/crw (934 stars, last pushed 2d ago), licensed AGPL-3.0. It adds 71 tokens to every session and 3,176 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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