Borrowing it
Nothing to install: this file belongs to openwong2kim/wmux. 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/openwong2kim/wmux/main/CLAUDE.mdgit clone --depth 1 https://github.com/openwong2kim/wmuxWrote 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/openwong2kim/wmux/claude-md)<a href="https://agentmods.dev/instructions/openwong2kim/wmux/claude-md"><img src="https://agentmods.dev/badge/instructions/openwong2kim/wmux/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/openwong2kim/wmux/claude-md"><img src="https://agentmods.dev/badge/instructions/openwong2kim/wmux/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 | $0.01230 | $0.01230 |
| Opus 5.5 | $0.00492 | $0.00492 |
| Sonnet 5.5 | $0.00246 | $0.00246 |
| Haiku 4.5 | $0.00123 | $0.00123 |
Grade A, and why
wmux 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 19d 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 — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Language (owner decision, 2026-07-20)
This is a public open-source repo: all repo artifacts are English, always —
commit messages, CHANGELOG entries, PR titles/bodies, code comments, and docs.
This OVERRIDES the global ~/.claude/CLAUDE.md Korean-commit/comment convention
for this repository. New code comments are written in English; do not mass-rewrite
existing Korean comments (respect the "don't improve adjacent code" rule), just
stop adding new Korean ones. Chat/reports with the owner may stay Korean.
Design System
Always read DESIGN.md before making any visual or UI decisions. All chrome/layout contracts (frame and sheet, rail pages, titlebar, the one-boundary rule), the theme tokens and color grammar (colour carries state only, no washes), typography, and aesthetic direction are defined there. Do not deviate without explicit user approval. In QA/design-review mode, flag any code that doesn't match DESIGN.md.
Versioning & release (owner decision, 2026-07-05)
- PRs never bump the version.
package.jsonstays at the last released version on every feature branch. Do NOT let /ship (or any workflow) bump MAJOR/MINOR/PATCH, claim version slots, or prefix PR titles withvX.Y.Z. - CHANGELOG: a PR does not edit
CHANGELOG.md. It adds one fragment,changelog.d/<pr-number>.md, holding its user-facing entries under plain Keep a Changelog headings. Separate files cannot conflict — editing the one shared insertion point meant every merge left every other open PR dirty. Seechangelog.d/README.md. - Release = explicit user action. Never start one unprompted.
mainis protected, so a release is a PR like any other, in this order:git checkout -b release/X.Y.Z origin/mainnode scripts/collect-changelog.mjs— foldschangelog.d/*.mdinto## [Unreleased](creating that heading if it is missing) and deletes the fragments.- In
CHANGELOG.md, rename## [Unreleased]→## [X.Y.Z] — YYYY-MM-DDand put a fresh, empty## [Unreleased]above it. Never leave the file without an[Unreleased]heading. - Bump the version in
package.jsonandpackage-lock.json(both the top-levelversionandpackages[""].version— CI's lockfile lineage guard fails otherwise). node scripts/gen-api-reference.mjs— the generated header bakes the version; CI's drift guard fails otherwise.- Commit
chore(release): X.Y.Z, push, open the PR, wait for CI green, squash-merge. - Wait for
mainCI to go green on the merge commit, then tag that commit and push the tag:git tag -a vX.Y.Z <merge-sha> -m "wmux X.Y.Z"andgit push origin vX.Y.Z. The tag push builds the installers and publishes the GitHub release, WinGet and Chocolatey (a prerelease skips the last two) — it cannot be undone, so it is the last step and only on a greenmain.
- Consequence accepted with this decision: same-version dev builds are not
distinguishable by semver, so the stale-daemon auto-replacement triggers
only on (a) pre-B′ daemons (missing version field) and (b) release-to-
release upgrades and (c)
CHANNELS_EPOCHbumps — not on every dev rebuild.
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.
- 19d ago Changed · +16 lines · +280 tokens per session b619e4b71d7b
- 23d ago Changed · +23 lines · +388 tokens per session c784fdc41991
- 24d ago Changed · +11 tokens per session 74e9cf39c46d
- 1mo ago Changed · -18 lines · -177 tokens per session d976e817f4b8
- 1mo ago First seen · 57 lines · 728 tokens per session scan A ff9b4be84216
wmux CLAUDE.md is an instructions file published in the GitHub repository openwong2kim/wmux (437 stars, last pushed today), licensed MIT. It adds 1,230 tokens to every session, about $0.0049 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 2026-08-30.
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Model-specific prompt authoring and registry guidelines.