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 agentmods add instructions/anvilnine/artifacts/claude-mdgit clone --depth 1 https://github.com/anvilnine/artifactsWhat 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 | $0.00497 | $0.00497 |
| Opus 5 | $0.00249 | $0.00249 |
| Sonnet 5 | $0.00099 | $0.00099 |
| Haiku 4.5 | $0.00050 | $0.00050 |
Grade A, and why
artifacts CLAUDE.md 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 2d 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.
What it actually says
artifacts
Self-hosted, Claude-style artifact publishing. POST HTML / a React component / Markdown / a zipped
static site, get back an unguessable URL on your own domain. One container, single admin account, no
database by default (plain files under /data); optional S3 / git / Postgres / SQLite backends. No
build step, Node >= 22. The end-to-end suite is bash .github/workflows/smoke.sh <url> <key>; unit
tests run with npm test.
Read the README and docs/ before working on a feature.
Domains
This product is being renamed to Dropkiln (docs/superpowers/plans/backlogs/backlog-6-rebrand.md).
Both domains are bought and both now resolve through Cloudflare nameservers on the Anvil Nine
Cloudflare account, as of 2026-08-06:
dropkiln.com= company and product: marketing, docs, blog, dashboard atapp.dropkiln.com, email. Cookies live here.dropkiln.app= user content only: tenant sites and artifacts at<name>.dropkiln.app. Wildcard, Cloudflare for SaaS custom hostnames, and the routing Worker all attach to this zone. Never set a dashboard cookie here.
Backlog 6 T6.1.1 said anvilnine.com would stay off Cloudflare. That is no longer true; all five
Anvil Nine zones are on the one account now. Nothing about the .com / .app split changes.
Current state worth knowing before you plan anything DNS-shaped: both apexes have proxied A records
pointing at an origin that is down, so https://dropkiln.com returns 522. Neither zone has a
DMARC record, so the T6.1.2 parking task (null MX + SPF + DMARC on both) is still open. Org-level
table: ../docs/domains.md.
Writing docs (README, docs/, PR bodies, comments)
Follow the org-wide prose rules in the parent anvilnine/CLAUDE.md.
Repo-specific check: before committing a README change, run grep -n "—\|–" README.md and confirm
it returns nothing.
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.
- 2d ago First seen · 37 lines · 497 tokens per session scan A 951c5cf02260
artifacts CLAUDE.md is an instructions file published in the GitHub repository anvilnine/artifacts (7 stars, last pushed 3d ago), licensed MIT. It adds 497 tokens to every session, about $0.0025 per session on Opus 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 2026-08-31.
Other instructions, from other repositories
ODS CLAUDE.md
Claude Code instructions for Osmantic/ODS, covering claude.md, project overview, repository structure, build & development commands and linting and validation.
tianji AGENTS.md
Instructions for msgbyte/tianji, covering contributor guide, development tips, translation files, testing instructions and pr instructions.
meme-search CLAUDE.md
Instructions for neonwatty/meme-search, covering claude.md, 📁 file organization guidelines, 🤖 task agent usage guidelines, when to use task agents and documentation lookup pattern.
sandboxd AGENTS.md
Instructions for tastyeffectco/sandboxd, covering agents.md — operating sandboxd, what this is, prerequisites, install and core api.
homelab-monitor CLAUDE.md
Instructions for SikamikanikoBG/homelab-monitor, covering claude.md and conventions.
AI-RAG-Assistant-Chatbot AGENTS.md
Instructions for hoangsonww/AI-RAG-Assistant-Chatbot, covering lumina codex guide, repository overview, scope rules, working rules and validation commands.