claude_storage 1.9.1

CLI tool for exploring Claude Code filesystem storage
Documentation 
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# Command :: 9. `.project.exists`

Check whether a directory has Claude Code conversation history. Exits with code `1` when no history is found, making it ideal for shell conditional logic.

**Parameters:** `path::`, `topic::`

**Exit:** `0` history found | `1` no history found

**Syntax:**
```bash
claude_storage .project.exists
claude_storage .project.exists path::PATH
claude_storage .project.exists topic::TOPIC
```

**Parameters:**

| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| `path::` | [`StoragePath`](../type/10_storage_path.md) | optional | cwd | Directory to check |
| `topic::` | [`TopicName`](../type/13_topic_name.md) | optional | — | Session topic suffix (without leading `-`) |

**Output:**
- Exit 0: `"sessions exist\n"` on stdout
- Exit 1: `"no sessions"` on stderr

**Examples:**
```bash
# Check current directory
claude_storage .project.exists

# Check specific directory
claude_storage .project.exists path::/home/user/project

# Shell conditional
if clg .project.exists; then echo "Has history"; else echo "Fresh start"; fi
```

**Notes:**
- Exit code `1` is an informational result (no history found), not a command error
- This is the sole history-check command; `.session` was removed as a duplicate (task-014)

### Referenced Parameter Groups

| # | Group | Membership | Excluded Params |
|---|-------|------------|-----------------|
| 5 | [Scope Configuration](../param_group/05_scope_configuration.md) | Partial | `scope::` |

### Referenced User Stories

| # | User Story | Persona |
|---|------------|---------|
| 5 | [Resume Claude Session](../user_story/005_resume_claude_session.md) | developer |