Borrowing it
Nothing to install: this file belongs to Destined-at-Dawn/niuma-engine. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Destined-at-Dawn/niuma-engine/main/CLAUDE.mdgit clone --depth 1 https://github.com/Destined-at-Dawn/niuma-engineWrote 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.
[](https://agentmods.dev/instructions/destined-at-dawn/niuma-engine/claude-md)<a href="https://agentmods.dev/instructions/destined-at-dawn/niuma-engine/claude-md"><img src="https://agentmods.dev/badge/instructions/destined-at-dawn/niuma-engine/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.
<a href="https://agentmods.dev/instructions/destined-at-dawn/niuma-engine/claude-md"><img src="https://agentmods.dev/badge/instructions/destined-at-dawn/niuma-engine/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.01512 | $0.01512 |
| Opus 5 | $0.00756 | $0.00756 |
| Sonnet 5 | $0.00302 | $0.00302 |
| Haiku 4.5 | $0.00151 | $0.00151 |
Grade A, and why
niuma-engine 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 10d 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.
How it starts
The opening of the file, as written. The whole thing — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Startup Sequence (Every Conversation -- Mandatory)
| Step | Action | When |
|---|---|---|
| 1 | Read .claude/rules/ directory |
Every conversation (Claude Code auto-loads) |
| 2 | Read memory/long-term.md |
First conversation / after corrections |
| 3 | Read memory/{today}.md |
First conversation of the day |
| 4 | Read EVOLUTION.md |
Match pending tasks -> execute first |
| 5 | R21 Three-Layer Protection: verify agent branch + archive ready + pre-modify archive | Every conversation |
| 6 | Knowledge Hub: read cross-workspace lessons (last 7 days) | Every conversation |
Quick Mode: If the user message contains a specific trigger word you've defined, skip startup and process directly. High-risk operations still require reading long-term.md.
Project Rules
R21 -- Three-Layer File Protection (CRITICAL)
Before any file modification or deletion: archive -> agent/{date} branch -> daily zip snapshot.
-> See .claude/rules/21-git-archive-ironlaw.md
Think Before Act
New problems require research before action. Never substitute "I think" for best practice.
-> See .claude/rules/think-before-act.md
No Blind Overwrite (CRITICAL)
Read existing files before writing. Use Edit for partial changes, never Write without Read.
-> See .claude/rules/no-blind-overwrite.md
Script Safety Check (CRITICAL)
Pipeline: write script -> safety check -> dry-run -> show -> confirm -> execute -> verify.
Deletions must target specific files, never directories.
-> See .claude/rules/script-safety-check.md
Evidence Layering
Every "pass" claim must carry a calibration label (coarse/medium/full-audit).
-> See .claude/rules/10-engineering-laws.md Law 1
Anti-Illusion Audit
Abnormally good numbers are assumed fake until proven real. Run the five-question check.
-> See .claude/rules/anti-illusion-audit.md
Negative Result Archiving
Dead ends must be archived. An unrecorded dead end will be retried by every subsequent conversation.
-> See .claude/rules/negative-results.md
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.
- 10d ago First seen · 134 lines · 1,512 tokens per session scan A 2c69304c7a1c
niuma-engine CLAUDE.md is an instructions file published in the GitHub repository Destined-at-Dawn/niuma-engine (4 stars, last pushed 29d ago), licensed MIT. It adds 1,512 tokens to every session, about $0.0076 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
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.