multi-agent-mux/skills/multi-agent-status/SKILL.md

---
name: multi-agent-status
description: "Read-only instant snapshot of all agent tmux sessions — name, YAML status, tmux alive, pane cmd/cwd, resume UUID on disk, and any drift. No Kanban, no mutation. Reuses reconcile.sh --dry-run for the diff logic. Use when you want to know 'what's running RIGHT NOW' without spinning up a Kanban monitor worker."
version: 1.0.0
author: godopu
license: MIT
platforms: [linux, macos]
environments: [terminal, tmux]
metadata:
  hermes:
    tags: [agent, tmux, claude, antigravity, agy, status, read-only, snapshot]
    related_skills: [multi-agent-create, multi-agent-resume, multi-agent-delete, agent-sessions-monitor]
    prereq_skills: [multi-agent-create, agent-sessions-monitor]
---

# Multi-Agent Status — Read-Only Instant Snapshot

> **Companion skills**: `multi-agent-create` (start), `multi-agent-resume` (re-attach), `multi-agent-delete` (terminate), `agent-sessions-monitor` (live polling).
> **Tmux Isolation**: `status` 명령은 YAML에 등록된 모든 세션의 격리 서버(`tmux_server` 필드)를 자동으로 조회하여 상태를 확인하므로, `TMUX_SERVER_NAME` 환경변수를 수동으로 지정하지 않아도 모든 격리 서버의 세션 상태를 통합 조회합니다.
> **Single source of truth**: `~/PuKi/lab/agent_sessions/agent-sessions.yaml`.

## What this skill does

Print a single table of every agent tmux session, comparing YAML state to actual tmux state. **No mutation. No Kanban. No polling loop.**

This is the "what's running right now?" answer — faster than dispatching `agent-sessions-monitor` (which polls every 30s) and safer than `reconcile.sh --once --emit-diff` (which mutates as a side effect).

## Pre-flight

```bash
command -v tmux
command -v python3
test -f ~/PuKi/lab/agent_sessions/agent-sessions.yaml
```

If `agent-sessions.yaml` doesn't exist or is malformed → print clear error, exit 1. **Do not create it.** (Use `multi-agent-create` first.)

## Workflow

```bash
bash ~/PuKi/lab/agent_sessions/skills/multi-agent-status/scripts/status.sh [--json]
```

The script:

1. Calls `reconcile.sh --once --emit-diff --dry-run` (read-only; no YAML mutation) for the drift snapshot
2. Loads `agent-sessions.yaml` (read-only) to enrich the table
3. For each row in `tmux_sessions[]`:
   - tmux alive? (via `tmux has-session -t <name>`)
   - pane cmd, cwd (via `tmux list-panes`)
   - resume UUID on disk? (claude: `~/.claude/projects/<key>/<uuid>.jsonl`; agy: `~/.gemini/antigravity-cli/conversations/<uuid>.db`)
4. For each tmux session matching `*-creator-*` not in YAML → flag as "unregistered"
5. Prints a table (default) or JSON (with `--json`)

## Output format (default = aligned table)

```
AGENT SESSIONS STATUS
yaml_path: ~/PuKi/lab/agent_sessions/agent-sessions.yaml
tmux_sessions_alive: 2
yaml_entries: 3
unregistered: 0
drifts: 0

NAME                                              | YAML     | TMUX  | PANE CMD          | PANE CWD                                          | RESUME UUID ON DISK
--------------------------------------------------|----------|-------|-------------------|---------------------------------------------------|--------------------
lab-landing-page-creator-claude                   | running  | ✓     | claude            | /home/.../refer_landing_page                      | 87dc548e-... ✓
lab-landing-page-creator-agy                      | terminated| ✗   | -                 | -                                                 | 22255a9a-... ✓ (orphan)
lab-paper-pdf2md-creator-claude                   | running  | ✓     | claude            | /home/.../paper-pdf2md                            | -

DRIFTS
(none)

UNREGISTERED TMUX SESSIONS
(none)
```

## Output format (`--json`)

```json
{
  "yaml_path": "...",
  "tmux_sessions_alive": ["..."],
  "yaml_entries": [...],
  "rows": [
    {
      "name": "lab-landing-page-creator-claude",
      "yaml_status": "running",
      "tmux_alive": true,
      "pane_cmd": "claude",
      "pane_cwd": "/home/.../refer_landing_page",
      "resume_uuid_on_disk": true,
      "drift": null
    },
    {
      "name": "lab-landing-page-creator-agy",
      "yaml_status": "terminated",
      "tmux_alive": false,
      "drift": "yaml-says-terminated-but-disk-uuid-still-present"
    }
  ],
  "unregistered": [],
  "drifts": []
}
```

## Drift classes (read-only — never mutates)

| Class | Detection | Meaning |
|---|---|---|
| `A` | YAML `running`, tmux dead | session died without going through `multi-agent-delete`. *Could* auto-terminate but won't — that's `agent-sessions-monitor`'s job. |
| `B` | tmux alive, not in YAML | ad-hoc session someone started without `multi-agent-create`. Suggest: "use multi-agent-create to register, or tmux kill-session to clean up." |
| `C` | YAML has `claude_session_id_own: null` AND a new *.jsonl exists | new session id materialized; suggest: "run multi-agent-resume or reconcile to register it." |
| `D` | YAML has UUID in `agent_identities`, but the on-disk artifact is gone | stale UUID; user should `multi-agent-delete --purge-conversation` to clean up. |

## Pitfalls

- **Do NOT use this skill to drive mutations** — the output is a snapshot, not a call to action. If you need to fix drifts, dispatch `agent-sessions-monitor` (Kanban worker) or run `multi-agent-resume` / `multi-agent-delete` manually.
- **Read-only is enforced by script** — `status.sh` opens the YAML with `open(path)` (no `'w'`), never calls `tmux kill-session`, never writes anywhere. The `reconcile.sh --dry-run` mode is the same path.
- **If `agent-sessions.yaml` is malformed** — print the YAML error verbatim and exit 1. Do NOT attempt recovery (that's `multi-agent-delete --purge-conversation` or manual edit's job).
- **Sessions outside the `<workspace>-creator-*` naming convention** are still shown but tagged `ad-hoc` — they didn't go through `multi-agent-create` and aren't tracked in YAML.

## When to use

- "Is the claude session still running?" → this skill, not the monitor
- "What UUID does this workspace have?" → this skill
- "Is there drift between YAML and reality?" → this skill, then dispatch monitor or fix manually
- Quick sanity check before dispatching a long Kanban task

## When NOT to use

- Continuous live tracking → `agent-sessions-monitor` (Kanban worker)
- Recovering from corruption → manual edit + `.bak` restore
- Polling more than once a minute → `agent-sessions-monitor` (it dedupes)