What is tmux-scout-golang CLAUDE.md?

Repository instructions for tmux-scout-golang, a Go and Bash tmux plugin that monitors Claude Code, Codex, and Gemini CLI sessions. It includes build, test, release, and architecture details.

Use them when developing, testing, cross-compiling, tagging, or releasing tmux-scout-golang, or when working on its session hooks, picker, status widget, or crash detection.

They provide the project-specific rules needed to build and release the plugin correctly, including its protected main branch and required pull-request process. They also explain what each major command does.

How ianchesal/tmux-scout-golang configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to ianchesal/tmux-scout-golang. 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/ianchesal/tmux-scout-golang/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/ianchesal/tmux-scout-golang

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/ianchesal/tmux-scout-golang/claude-md/github.svg)](https://agentmods.dev/instructions/ianchesal/tmux-scout-golang/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/ianchesal/tmux-scout-golang/claude-md"><img src="https://agentmods.dev/badge/instructions/ianchesal/tmux-scout-golang/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/ianchesal/tmux-scout-golang/claude-md"><img src="https://agentmods.dev/badge/instructions/ianchesal/tmux-scout-golang/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 681 This file is loaded in full into every session.

When invoked 681 The same file — it is already loaded in full.

Security scan A 0 findings. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00681	$0.00681
Opus 5	$0.00341	$0.00341
Sonnet 5	$0.00136	$0.00136
Haiku 4.5	$0.00068	$0.00068

Measured 11d ago against content hash 72c2900be7ce, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

tmux-scout-golang 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 11d 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 · 58 lines

How it starts

The opening of the file, as written. The whole thing — 58 lines — stays where its author put it; the contents beside it link to each section on GitHub.

tmux-scout-golang

A tmux plugin for monitoring and navigating Claude Code, Codex, and Gemini CLI sessions. Provides a real-time fzf picker, status bar widget, and crash detection.

Tech Stack

Language: Go 1.21+, stdlib only — no external dependencies
Shell: Bash (tmux plugin entry point, picker launcher, status widget)

Build

make build      # compile to bin/tmux-scout
make test       # go test ./...
make release    # cross-compile for linux/darwin amd64/arm64
make tag        # verify preconditions, run tests, tag, and push to trigger GitHub release

Releasing

main is branch-protected — all changes (including version bumps) require a pull request.

To cut a release, use the project Claude Code skill: say "cut a new release" and it will prompt for patch / minor / major, handle the branch + PR, and run make tag after the PR merges.

Manually: create a branch, update .version to the new vMAJOR.MINOR.PATCH, commit, push, open a PR. After merge, pull main and run make tag.

Architecture

Go binary subcommands:

Subcommand	Purpose
`hook claude`	Process Claude Code hook events (reads env vars, updates session JSON)
`hook codex [json]`	Process Codex notify hook events
`hook gemini`	Process Gemini CLI hook events (reads env vars, updates session JSON)
`setup install\|uninstall\|status [--claude\|--codex\|--gemini]`	Install/remove hooks in Claude Code, Codex, and Gemini CLI configs
`picker <status-file> <current-pane>`	Render fzf picker lines
`picker preview <pane-id> <status-file>`	Render structured pane preview (metadata header + filtered terminal output)
`picker sync`	Sync session state (poll Codex JSONL, detect crashes)
`status-bar`	Emit status bar widget string

Data storage: ~/.cache/tmux-scout/ (XDG; respects $XDG_CACHE_HOME)

status.json — aggregated session index
sessions/{id}.json — per-session state files

Go file layout (flat package main):

main.go — CLI dispatch
store.go — types + session read/write
hook_claude.go, hook_codex.go, hook_gemini.go — hook handlers
setup.go, setup_claude.go, setup_codex.go, setup_gemini.go — installer
picker.go, picker_sync.go, picker_render.go, picker_preview.go — picker logic
status_bar.go — status widget

Read the full file on GitHub · 58 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.

11d ago First seen · 58 lines · 681 tokens per session scan A 72c2900be7ce

Subscribe to this mod's changes

tmux-scout-golang CLAUDE.md is an instructions file published in the GitHub repository ianchesal/tmux-scout-golang (6 stars, last pushed 2d ago), licensed MIT. It adds 681 tokens to every session, about $0.0034 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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tmux-scout-golang: Instructions file for Claude Code