session

name	session
description	Unified session management window. Handles initialization, memory, state all-in-one. Explicit /session invocation only — sub-skills handle auto-delegation. Use when managing Claude Code sessions, /session command. Do NOT load for: app user sessions, login state, authentication features.
description-en	Unified session management window. Handles initialization, memory, state all-in-one. Explicit /session invocation only — sub-skills handle auto-delegation. Use when managing Claude Code sessions, /session command. Do NOT load for: app user sessions, login state, authentication features.
description-ja	セッション管理の総合窓口。初期化・記憶・状態を一手に引き受けます。明示的 /session 呼び出し専用 — 下位スキルが自動委譲されるため自動発動は不要。Use when managing Claude Code sessions, /session command. Do NOT load for: app user sessions, login state, authentication features.
allowed-tools	["Read","Bash","Write","Edit","Glob"]
user-invocable	true
disable-model-invocation	true
argument-hint	[list|inbox|broadcast "message"]

Session Skill (Unified)

Consolidates all session-related functionality into one skill.

Usage

/session              # Show available options
/session list         # Show active sessions
/session inbox        # Check incoming messages
/session broadcast "message"  # Send message to all sessions

Subcommands

/session list - List Active Sessions

Shows all active Claude Code sessions in the current project.

📋 Active Sessions

| Session ID | Status | Last Activity |
|------------|--------|---------------|
| abc123     | active | 2 min ago     |
| def456     | idle   | 15 min ago    |

/session inbox - Check Inbox

Checks for incoming messages from other sessions.

📬 Session Inbox

| From | Time | Message |
|------|------|---------|
| abc123 | 5m ago | "Ready for review" |
| def456 | 10m ago | "API implementation done" |

/session broadcast "message" - Broadcast Message

Sends a message to all active sessions.

/session broadcast "Review complete, ready for merge"

---

Capabilities

Feature	Description	Reference
Initialization	Start new session, load context	See ../session-init/SKILL.md
Memory	Persist learnings across sessions	See ../session-memory/SKILL.md
State Control	Resume/fork session based on flags	See references/session-control.md
Communication	Cross-session messaging	See ../session-state/SKILL.md

---

メモリ最適化（CC 2.1.49+）

Claude Code 2.1.49 以降、セッション再開時のメモリ使用量が 68% 削減 されました。

長時間セッション管理のベストプラクティス