Borrowing it
Nothing to install: this file belongs to UrosNikolic/zellij-claude. 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/UrosNikolic/zellij-claude/main/CLAUDE.mdgit clone --depth 1 https://github.com/UrosNikolic/zellij-claudeWrote 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/urosnikolic/zellij-claude/claude-md)<a href="https://agentmods.dev/instructions/urosnikolic/zellij-claude/claude-md"><img src="https://agentmods.dev/badge/instructions/urosnikolic/zellij-claude/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/urosnikolic/zellij-claude/claude-md"><img src="https://agentmods.dev/badge/instructions/urosnikolic/zellij-claude/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 | $0.00270 | $0.00270 |
| Opus 5 | $0.00135 | $0.00135 |
| Sonnet 5 | $0.00054 | $0.00054 |
| Haiku 4.5 | $0.00027 | $0.00027 |
Grade A, and why
zellij-claude 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 12d 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.
What it actually says
zellij-claude
Zellij plugin for managing and switching between Claude Code sessions.
Build & Release
make build # build locally
make release # build, commit, tag (patch bump), push — triggers GitHub Actions
make release-minor # bump minor version
make release-major # bump major version
Target is wasm32-wasip1 (configured in .cargo/config.toml). Output: target/wasm32-wasip1/release/zellij-claude.wasm
GitHub Actions builds the WASM and attaches it to the release on tag push.
Architecture
Single-file Zellij WASM plugin (src/main.rs) using zellij-tile 0.43. The plugin:
- Discovers Claude Code sessions by scanning
~/.claude/sessions/*.json - Matches sessions to Zellij panes via process environment variables
- Accepts real-time status updates via Zellij pipes (
claude_status) - Polls every 2 seconds via timer
Testing locally
Load the plugin in Zellij with:
LaunchOrFocusPlugin "file:target/wasm32-wasip1/release/zellij-claude.wasm" {
floating true
}
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.
- 12d ago First seen · 36 lines · 270 tokens per session scan A 28a8790f2e0f
zellij-claude CLAUDE.md is an instructions file published in the GitHub repository UrosNikolic/zellij-claude (2 stars, last pushed 5mo ago), licensed MIT. It adds 270 tokens to every session, about $0.0014 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.
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