Skip to the rows

agentsclimarketplace

Cmux diagnostics

Skill YosukeIida/personal-agent-skills/cmux-diagnostics

Personal agent skills (Claude Code / Codex) — SKILL.md collection

Install

npx -y skills add YosukeIida/personal-agent-skills --skill cmux-diagnostics

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

3 things to look at

20 days oldThe repository was created 20 days ago. New is not bad, but a brand new repository carrying a familiar-sounding name is the shape a typosquat arrives in, and there has been no time for anyone else to find a problem with it.
no licenseNo license file was found in the repository. Code published without one is not open source by default, so using it at work is a question for whoever answers licensing questions where you are.
0 stars0 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

What its author says it does

Copied from the file, not written here

Run end-user cmux diagnostics. Use when cmux hooks, notifications, session restore, settings, browser automation, socket access, CLI control, or agent resume behavior is not working, or when the user asks for a cmux health check, doctor report, or support-safe debug summary.

SKILL.md

3.6 KB, as published. Nobody here has run it

cmux Diagnostics

Use this skill to collect and interpret support-safe cmux diagnostics for end users. Default to read-only checks. Do not dump hook config files, session stores, prompt logs, tokens, or environment secrets.

Quick Report

Run the bundled read-only diagnostic script first:

# From a cmux checkout
skills/cmux-diagnostics/scripts/cmux-diagnostics

# From an installed skill
~/.agents/skills/cmux-diagnostics/scripts/cmux-diagnostics

# From a Codex-only skills.sh install
~/.codex/skills/cmux-diagnostics/scripts/cmux-diagnostics

Use --include-context only when workspace names, cwd paths, and current cmux identifiers are relevant to the user-reported issue:

skills/cmux-diagnostics/scripts/cmux-diagnostics --include-context

What to Check

CLI and socket health:
```
command -v cmux
cmux ping
cmux capabilities --json
```
If socket commands fail, check whether the agent is running inside a cmux terminal and whether socket automation is enabled.
Settings health:
```
~/.agents/skills/cmux-settings/scripts/cmux-settings validate
~/.agents/skills/cmux-settings/scripts/cmux-settings get terminal.autoResumeAgentSessions
```
If the user installed with skills.sh, use ~/.codex/skills/cmux-settings/scripts/cmux-settings instead. If terminal.autoResumeAgentSessions is false, cmux restores panes but will not automatically resume saved agent sessions.
Hook installation:
```
cmux hooks setup --agent codex
cmux hooks setup --agent opencode
cmux hooks setup
```
Only run install or uninstall commands after the user agrees. cmux hooks setup installs supported agents found on PATH and skips missing agents.
Session restore evidence:
```
ls -lh ~/.cmuxterm/*-hook-sessions.json 2>/dev/null
```
Missing session stores usually means the agent has not run inside cmux since hooks were installed, hooks are disabled, or the agent integration does not support resume capture.
Notification path:
```
cmux notify "cmux diagnostic test"
```
Use this only when the user is ready for a visible test notification.

Interpretation

cmux not found: the CLI is not installed or not on PATH for this shell.
cmux ping fails: app is not reachable through the current socket path, the app is closed, or automation access is disabled.
No CMUX_WORKSPACE_ID or CMUX_SURFACE_ID: the command is probably running outside a cmux terminal. Some hooks intentionally no-op outside cmux.
Hook config exists but no session store: run one supported agent inside cmux after installing hooks, then re-check.
Session store exists but restore does not launch agents: check terminal.autoResumeAgentSessions and whether the saved executable still exists on PATH.
Settings validation fails: fix the config first. Invalid config can make later symptoms misleading.

Rules

Stay read-only until the user asks to fix something.
Never print raw hook files, session JSON, prompt logs, shell history, tokens, or API keys.
Summarize file presence, size, modified time, and marker presence instead of contents.
Prefer narrow fixes such as cmux hooks setup --agent codex over reinstalling every integration.
After a fix, rerun the diagnostic script and report the changed lines.

Keep looking

Skills are one crate of 328,083. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.