sruja: Instructions file for Claude Code

CLAUDE.md

sruja CLAUDE.md is an instructions file for Claude Code from sruja-ai/sruja. It costs 588 tokens per session, scanned A, original, Apache-2.0.

Repository instructions for Sruja, a Rust coding agent that understands software architecture and checks whether code changes follow it. The project is split into multiple Rust packages grouped into architecture tiers.

In plain words
What is it for?
Use it when building or testing Sruja, checking architecture drift, classifying a Rust codebase, synchronizing editor rules, or changing one of its crates.
Why use it?
It documents the build, test, architecture checks, package-dependency rules, and common commands needed to work safely in the repository.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions Claude Code; mentions AGENTS.md.

This is sruja-ai/sruja's own configuration. It tells Claude Code how to work on sruja itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything sruja configures →

Reuse

Borrowing it

Nothing to install: this file belongs to sruja-ai/sruja. 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/sruja-ai/sruja/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/sruja-ai/sruja

Made for: Claude Code.

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Per session 588 This file is loaded in full into every session.
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Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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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 $0.00588 $0.00588
Opus 5 $0.00294 $0.00294
Sonnet 5 $0.00118 $0.00118
Haiku 4.5 $0.00059 $0.00059

Measured 8d ago against content hash c1b71cc47ca4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

sruja 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 8d 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 · 65 lines

How it starts

The opening of the file, as written. The whole thing — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sruja - Claude Code Context

Sruja is an AI coding agent that helps you build better software by understanding your codebase architecture and verifying that changes align with design decisions.

Quick Start

# Build
cargo build --release

# Test
cargo test --workspace

# Check architecture
sruja drift -r .

Architecture

14 Rust crates in 4 tiers:

  • Core Engine (6): sruja-language, sruja-engine, sruja-graph, sruja-graph-core, sruja-scan, sruja-diagnostics
  • Extraction (2): sruja-extract, sruja-export
  • Delivery (2): sruja-cli, sruja-wasm
  • Secondary (4): sruja-diff, sruja-intent, sruja-agent, sruja-memory

Full architecture brief: llms-architecture.txt

Key Rules

  • Lower-tier crates must not depend on higher-tier crates
  • sruja-cli is the top-level aggregator — no other crate should depend on it
  • WASM-only crates must not use native-only APIs (tree-sitter, fastembed)
  • Use thiserror for error types, never anyhow

Commands

Command Purpose
sruja classify -r . Generate architecture classification
sruja sync-ide-rules -r . Generate IDE context files
sruja drift -r . Check architecture enforcement
sruja focus --file <path> Task-scoped context briefing
sruja mcp -r . Start MCP server

Before Committing

just check  # fmt + lint + test + validate-book-dsl

Full Guidelines

Read AGENTS.md for complete workflow, code style, and architecture patterns.

graphify

This project has a knowledge graph at graphify-out/ with god nodes, community structure, and cross-file relationships.

Rules:

  • For codebase questions, first run graphify query "<question>" when graphify-out/graph.json exists. Use graphify path "<A>" "<B>" for relationships and graphify explain "<concept>" for focused concepts. These return a scoped subgraph, usually much smaller than GRAPH_REPORT.md or raw grep output.
  • If graphify-out/wiki/index.md exists, use it for broad navigation instead of raw source browsing.
  • Read graphify-out/GRAPH_REPORT.md only for broad architecture review or when query/path/explain do not surface enough context.
  • After modifying code, run graphify update . to keep the graph current (AST-only, no API cost).

Read the full file on GitHub · 65 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.

  1. 8d ago First seen · 65 lines · 588 tokens per session scan A c1b71cc47ca4

Subscribe to this mod's changes

sruja CLAUDE.md is an instructions file published in the GitHub repository sruja-ai/sruja (23 stars, last pushed yesterday), licensed Apache-2.0. It adds 588 tokens to every session, about $0.0029 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 2026-08-30.

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