Files
beads/docs/messaging.md
Steve Yegge 8d73a86f7a feat: complete bd-kwro messaging & knowledge graph epic
- Add bd cleanup --ephemeral flag for transient message cleanup (bd-kwro.9)
- Add Ephemeral filter to IssueFilter type
- Add ephemeral filtering to SQLite storage queries

Tests (bd-kwro.10):
- Add internal/hooks/hooks_test.go for hook system
- Add cmd/bd/mail_test.go for mail commands
- Add internal/storage/sqlite/graph_links_test.go for graph links

Documentation (bd-kwro.11):
- Add docs/messaging.md for full messaging reference
- Add docs/graph-links.md for graph link types
- Update AGENTS.md with inter-agent messaging section
- Update CHANGELOG.md with all bd-kwro features

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-16 20:36:47 -08:00

255 lines
5.4 KiB
Markdown

# Beads Messaging System
Beads provides a built-in messaging system for inter-agent communication. Messages are stored as beads issues with type `message`, enabling git-native communication without external services.
## Overview
The messaging system enables:
- **Agent-to-agent communication** - Send messages between workers
- **Thread tracking** - Replies link back to original messages
- **Priority signaling** - Mark messages as urgent (P0) or routine
- **Ephemeral cleanup** - Messages can be bulk-deleted after completion
## Identity Configuration
Before using mail commands, configure your identity:
### Environment Variable
```bash
export BEADS_IDENTITY="worker-1"
```
### Config File
Add to `.beads/config.json`:
```json
{
"identity": "worker-1"
}
```
### Priority
1. `--identity` flag (if provided)
2. `BEADS_IDENTITY` environment variable
3. `.beads/config.json` identity field
4. System username (fallback)
## Commands
### Send a Message
```bash
bd mail send <recipient> -s <subject> -m <body>
```
**Options:**
- `-s, --subject` - Message subject (required)
- `-m, --body` - Message body (required)
- `--urgent` - Set priority=0 (urgent)
- `--identity` - Override sender identity
**Examples:**
```bash
# Basic message
bd mail send worker-1 -s "Task complete" -m "Finished bd-xyz"
# Urgent message
bd mail send manager -s "Blocked!" -m "Need credentials for deploy" --urgent
# With custom identity
bd mail send worker-2 -s "Handoff" -m "Your turn on bd-abc" --identity refinery
```
### Check Your Inbox
```bash
bd mail inbox
```
Lists all open messages addressed to your identity.
**Options:**
- `--from <sender>` - Filter by sender
- `--priority <n>` - Filter by priority (0-4)
**Output:**
```
Inbox for worker-1 (2 messages):
bd-a1b2: Task assigned [URGENT]
From: manager (5m ago)
bd-c3d4: FYI: Design doc updated
From: worker-2 (1h ago)
Re: bd-x7y8
```
### Read a Message
```bash
bd mail read <id>
```
Displays full message content. Does NOT mark as read.
**Example output:**
```
──────────────────────────────────────────────────────────────────
ID: bd-a1b2
From: manager
To: worker-1
Subject: Task assigned
Time: 2025-12-16 10:30:45
Priority: P0
Status: open
──────────────────────────────────────────────────────────────────
Please prioritize bd-xyz. It's blocking the release.
Let me know if you need anything.
```
### Acknowledge (Mark as Read)
```bash
bd mail ack <id> [id2...]
```
Closes messages to mark them as acknowledged.
**Examples:**
```bash
# Single message
bd mail ack bd-a1b2
# Multiple messages
bd mail ack bd-a1b2 bd-c3d4 bd-e5f6
```
### Reply to a Message
```bash
bd mail reply <id> -m <body>
```
Creates a threaded reply to an existing message.
**Options:**
- `-m, --body` - Reply body (required)
- `--urgent` - Set priority=0
- `--identity` - Override sender identity
**Behavior:**
- Sets `replies_to` to original message ID
- Sends to original message's sender
- Prefixes subject with "Re:" if not already present
**Example:**
```bash
bd mail reply bd-a1b2 -m "On it! Should be done by EOD."
```
## Message Storage
Messages are stored as issues with these fields:
| Field | Description |
|-------|-------------|
| `type` | `message` |
| `title` | Subject line |
| `description` | Message body |
| `assignee` | Recipient identity |
| `sender` | Sender identity |
| `priority` | 0 (urgent) to 4 (routine), default 2 |
| `ephemeral` | `true` - can be bulk-deleted |
| `replies_to` | ID of parent message (for threads) |
| `status` | `open` (unread) / `closed` (read) |
## Cleanup
Messages are ephemeral by default and can be cleaned up:
```bash
# Preview ephemeral message cleanup
bd cleanup --ephemeral --dry-run
# Delete all closed ephemeral messages
bd cleanup --ephemeral --force
```
## Hooks
The messaging system fires hooks when messages are sent:
**Hook file:** `.beads/hooks/on_message`
The hook receives:
- **Arg 1:** Issue ID
- **Arg 2:** Event type (`message`)
- **Stdin:** Full issue JSON
**Example hook:**
```bash
#!/bin/sh
# .beads/hooks/on_message
ISSUE_ID="$1"
EVENT="$2"
# Parse assignee from JSON stdin
ASSIGNEE=$(cat | jq -r '.assignee')
# Notify recipient (example: send to external system)
curl -X POST "https://example.com/notify" \
-d "to=$ASSIGNEE&message=$ISSUE_ID"
```
Make the hook executable:
```bash
chmod +x .beads/hooks/on_message
```
## JSON Output
All commands support `--json` for programmatic use:
```bash
bd mail inbox --json
bd mail read bd-a1b2 --json
bd mail send worker-1 -s "Hi" -m "Test" --json
```
## Thread Visualization
Use `bd show --thread` to view message threads:
```bash
bd show bd-c3d4 --thread
```
This shows the full conversation chain via `replies_to` links.
## Best Practices
1. **Use descriptive subjects** - Recipients scan subjects first
2. **Mark urgent sparingly** - P0 should be reserved for blockers
3. **Acknowledge promptly** - Keep inbox clean
4. **Clean up after sprints** - Run `bd cleanup --ephemeral` periodically
5. **Configure identity** - Use `BEADS_IDENTITY` for consistent sender names
## See Also
- [Graph Links](graph-links.md) - Other link types (relates_to, duplicates, supersedes)
- [Hooks](EXTENDING.md) - Custom hook scripts
- [Config](CONFIG.md) - Configuration options