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wyx: Instructions file for Claude Code

CLAUDE.md

wyx CLAUDE.md is an instructions file for Claude Code from jlifyio/wyx. It costs 5,439 tokens per session, scanned B, original, MIT.

Repository instructions for Wyx, a Claude Code plugin that uses hooks to show architecture boundaries when code is edited near a module specification. A module specification is a document describing what a code module should do and where its boundaries are.

In plain words
What is it for?
Use them when developing Wyx, its specifications, architecture checks, or session, pre-tool, and post-tool hooks. They also describe how its skills and plugin files fit together.
Why use it?
They help the coding agent follow the project's architecture rules and reduce changes that cross module boundaries incorrectly. They also explain that Wyx is a plugin with hooks, rather than a standalone command-line program.

Instructions file for Claude Code

Written for Claude Code: $CLAUDE_PLUGIN_ROOT variable. Also seen: mentions .claude-plugin; mentions CLAUDE.md; mentions subagents.

This is jlifyio/wyx's own configuration. It tells Claude Code how to work on wyx 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 wyx configures →

Runs only inside a plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else, and the catalogue could not identify which plugin ships it.

not rated 3repo changed 22d ago B scan 5,439 tokens original MIT
View source ↗ jlifyio/wyx
Reuse

Borrowing it

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

Made for: Claude Code.

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Per session 5,439 This file is loaded in full into every session.
When invoked 5,439 The same file — it is already loaded in full.
Security scan B 1 finding. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.05439 $0.05439
Opus 5.5 $0.02176 $0.02176
Sonnet 5.5 $0.01088 $0.01088
Haiku 4.5 $0.00544 $0.00544

Measured 22d ago against content hash 8e0dcc34a17a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

wyx CLAUDE.md scanned grade B with 1 finding 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 22d 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

**SessionStart** (command): Scans project for existing wyx artifacts (CONCEPT.md, PIPELINE.md, SYNCS.md) and reports coverage in sorted order. Warns if `jq` is missing. Suggests `/wyx:audit` if none found — but **only wh
CLAUDE.md · 197 lines

How it starts

The opening of the file, as written. The whole thing — 197 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.

Project Overview

wyx is a Claude Code plugin that provides architecture guardrails for LLM-assisted development. The core mechanism: when Claude writes code near a module with a spec, the PreToolUse hook adds boundary declarations to Claude's context with the edit's result, intended to reduce cross-module violations (pilot-01: no measurable reduction — DEC-025).

Adapts ideas from WYSIWID (Meng & Jackson, MIT): the concept spec format and the concept/sync vocabulary. The injected boundary sections, calls between concepts, documentation-only syncs and the absence of a runtime are wyx's own departures — README §Background and DEC-022 record them. WYWIWID (Dr. Ernie) is cited as see-also only (DEC-022).

This is a Claude Code plugin (5 SKILL.md files + 3 hooks), not a CLI tool or runtime engine. The primary differentiator is the hooks — the skills are convenience packaging for generating the specs that fuel the hooks.

Architecture

.claude-plugin/
├── plugin.json             # Plugin manifest (name: "wyx")
hooks/
└── hooks.json              # SessionStart + PreToolUse + PostToolUse hooks (command type only)
scripts/
├── session-start.sh        # Artifact coverage + drift/ARCHITECTURE.md staleness + uncovered modules (with exclusions)
├── drift-context.sh        # Boundary injection near specs + CRLF handling + shadowing mitigation
└── post-check.sh           # Post-edit dependency list reinforcement (silent when no spec/deps)
skills/
├── audit/SKILL.md          # /wyx:audit — project audit & command planner
├── concept/SKILL.md        # /wyx:concept — bounded concept design + drift detection
├── map/SKILL.md            # /wyx:map — architecture visualization from specs
├── pipeline/SKILL.md       # /wyx:pipeline — data pipeline specs with quality invariants
└── sync/SKILL.md           # /wyx:sync — sync coordination maps

Skills

Read the full file on GitHub · 197 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. 22d ago Changed · +53 tokens per session 8e0dcc34a17a
  2. 23d ago Changed · +10 tokens per session b5831a6795ea
  3. 24d ago Changed · -11 lines · -30 tokens per session 803c744be8dd
  4. 1mo ago Changed · +215 tokens per session 19b988e8aa08
  5. 1mo ago Changed · +8 lines · +267 tokens per session 5f30d0e08913
  6. 2mo ago First seen · 200 lines · 4,924 tokens per session scan B 5566866b1bcc

Subscribe to this mod's changes

wyx CLAUDE.md is an instructions file published in the GitHub repository jlifyio/wyx (3 stars, last pushed 23d ago), licensed MIT. It adds 5,439 tokens to every session, about $0.0218 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Claude CodeLLMarchitectureclaude-code-plugincode-qualitydeveloper-tools
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