What is simmis CLAUDE.md?

A project guide for Simmis, a business-oriented environment that combines chat, a wiki, knowledge bases, AI staff, and shared data storage. It tells coding agents how this repository is structured and how to work in it.

It is for understanding Simmis's architecture, finding its main documentation, and following its development and validation instructions.

It gives agents the project context and working rules needed to make changes without relying on outdated architecture or undocumented assumptions.

How replikativ/simmis configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to replikativ/simmis. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/replikativ/simmis/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/replikativ/simmis

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/replikativ/simmis/claude-md/github.svg)](https://agentmods.dev/instructions/replikativ/simmis/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/replikativ/simmis/claude-md"><img src="https://agentmods.dev/badge/instructions/replikativ/simmis/claude-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/replikativ/simmis/claude-md"><img src="https://agentmods.dev/badge/instructions/replikativ/simmis/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 5,032 This file is loaded in full into every session.

When invoked 5,032 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original 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.

Model	Per session	Once invoked
Fable 5.1	$0.05032	$0.05032
Opus 5.5	$0.02013	$0.02013
Sonnet 5.5	$0.01006	$0.01006
Haiku 4.5	$0.00503	$0.00503

Measured 20d ago against content hash 70d611e1abfc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

simmis 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 20d 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.

CLAUDE.md · 393 lines

How it starts

The opening of the file, as written. The whole thing — 393 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository. Refreshed 2026-07-03 — the previous version documented the retired UIx/React architecture.

What simmis is

A business-oriented, value-building, self-programming environment on the datahike.io stack: chat + wiki + knowledge bases + AI staff, one shared memory substrate. The UI is spindel (FRP signals/spins rendering DOM incrementally — NOT React); the agent substrate is dvergr (discourse rooms, SCI sandbox, per-room scheduler, telegram channel); persistence is datahike over konserve with yggdrasil CoW branching, synced client↔server via konserve-sync over kabel websockets with kabel-auth JWT.

simmis is the prime showcase for spindel — hold UI code to idiomatic reactive decomposition (see "spindel sharp edges" below).

Documentation: doc/architecture.md first, then doc/data-model.md, doc/authority.md, doc/proposals-and-time-travel.md, doc/agents.md. Each describes code that exists; there is no roadmap or backlog in the repository, and open work is not tracked in documentation.

Instructions

Use clj-nrepl-eval to iterate and validate before large changes.
Avoid fallback solutions except for experimentation; ask when you can't solve something without one.
Git commit after significant milestones; not while stuck or debugging.
Circle back to doc/ after an implementation and before committing. Those five documents describe code that EXISTS — if a change makes one of them wrong, fix it in the same commit rather than adding a note about it.
When isolating a problem is hard, add log statements / REPL probes. For reactive-correctness bugs, trace ENGINE state via REPL probes — not app-level workarounds.

NEVER Use Delays as Patches

Never use setTimeout/Thread/sleep/timeouts to "fix" timing or synchronization issues. Use real coordination: await events, channels, promises, signals, or pass data explicitly. (One legitimate exception: a requestAnimationFrame to defer DOM measurements or scroll positions until after layout — a documented DOM lifecycle idiom, not a race patch.)

Read the full file on GitHub · 393 lines

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.

20d ago Changed · +78 lines · +1,289 tokens per session 70d611e1abfc
2mo ago First seen · 315 lines · 3,743 tokens per session scan A 3421c154b4ce

Subscribe to this mod's changes

simmis CLAUDE.md is an instructions file published in the GitHub repository replikativ/simmis (12 stars, last pushed yesterday), licensed MIT. It adds 5,032 tokens to every session, about $0.0201 per session on Opus 5.5. 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.

simmis CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
simmis CLAUDE.mdreplikativ/simmis	Instructions file	12	yesterday	MIT	A	5,032	Claude Code, Codex
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

simmis: Instructions file for Claude Code