johnlindquist/claude/agent-mail

Claude Code and agent skill by johnlindquist/claude

Trust tier 2
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Source check pending

Checking that the SKILL.md file is still in the repository.

Inter-agent communication for multi-agent workflows. Use when multiple agents need to coordinate, share information, or reserve resources.

Install

npx vskill@latest install johnlindquist/claude/agent-mail

SKILL.md

Agent Mail System

Communication system for coordinating multiple agents.

Overview

Agent mail enables:

  • Message passing between agents
  • File reservation to prevent conflicts
  • Session tracking across agents
  • Thread-based conversations

Session Management

Start Agent Session

Register agent and get inbox:

bash
# Initialize session
curl -X POST http://localhost:3847/api/session/start \
-H "Content-Type: application/json" \
-d '{
"project_path": "/path/to/project",
"program": "claude-code",
"model": "opus-4",
"agent_name": "agent-1",
"task_description": "Working on auth module"
}'
List Agents
bash
curl http://localhost:3847/api/agents?project_path=/path/to/project
Agent Info
bash
curl http://localhost:3847/api/agents/agent-1?project_path=/path/to/project

Messaging

Send Message
bash
curl -X POST http://localhost:3847/api/mail/send \
-H "Content-Type: application/json" \
-d '{
"project_path": "/path/to/project",
"sender_name": "agent-1",
"to": ["agent-2"],
"subject": "Auth module complete",
"body_md": "## Summary\nAuth implementation is done.\n\n## Files changed\n- src/auth/*",
"importance": "normal",
"ack_required": false
}'
Check Inbox
bash
curl "http://localhost:3847/api/mail/inbox?project_path=/path/to/project&agent_name=agent-1"
Reply to Message
bash
curl -X POST http://localhost:3847/api/mail/reply \
-H "Content-Type: application/json" \
-d '{
"project_path": "/path/to/project",
"message_id": 123,
"sender_name": "agent-2",
"body_md": "Thanks! I'\''ll start on the API integration."
}'
Acknowledge Message
bash
curl -X POST http://localhost:3847/api/mail/ack \
-H "Content-Type: application/json" \
-d '{
"project_path": "/path/to/project",
"agent_name": "agent-2",
"message_id": 123
}'
Search Messages
bash
curl "http://localhost:3847/api/mail/search?project_path=/path/to/project&query=authentication"

File Reservations

Prevent conflicts when multiple agents edit files.

Reserve Files
bash
curl -X POST http://localhost:3847/api/files/reserve \
-H "Content-Type: application/json" \
-d '{
"project_path": "/path/to/project",
"agent_name": "agent-1",
"paths": ["src/auth/*.ts", "src/config.ts"],
"exclusive": true,
"reason": "Implementing authentication",
"ttl_seconds": 3600
}'
Check Reservations
bash
curl "http://localhost:3847/api/files/reservations?project_path=/path/to/project"
Release Files
bash
curl -X POST http://localhost:3847/api/files/release \
-H "Content-Type: application/json" \
-d '{
"project_path": "/path/to/project",
"agent_name": "agent-1",
"paths": ["src/auth/*.ts"]
}'

Thread Management

Get Thread Summary
bash
curl "http://localhost:3847/api/mail/thread/THREAD_ID/summary?project_path=/path/to/project"
Thread Operations

Threads are automatically created when replying to messages.

Coordination Patterns

Task Handoff
markdown
Agent 1 completes task:
1.Reserve output files
2.Complete work
3.Send message to Agent 2 with handoff details
4.Release file reservations
Agent 2 receives:
1.Get inbox
2.Reserve input files
3.Continue work
4.Acknowledge receipt
Parallel Work
markdown
Coordinator:
1.Reserve coordination files
2.Send tasks to agents
3.Wait for completion messages
4.Merge results
Workers:
1.Reserve assigned files
2.Complete task
3.Send completion message
4.Release files
Review Request
markdown
Author:
1.Complete code
2.Send review request to reviewer agents
3.Wait for feedback
Reviewers:
1.Get inbox
2.Review code (read-only, no reservation needed)
3.Send feedback message

Health Check

bash
curl http://localhost:3847/api/health

Message Importance Levels

LevelUse Case
lowFYI, status updates
normalStandard communication
highNeeds attention soon
urgentBlocking, needs immediate response

Best Practices

  1. Reserve before editing - Prevent conflicts
  2. Use meaningful subjects - Easy inbox scanning
  3. Acknowledge important - Confirm receipt when ack_required
  4. Release promptly - Don't hold reservations unnecessarily
  5. Use threads - Keep related messages together
  6. Check inbox regularly - Don't miss messages
  7. Handoff cleanly - Include all needed context

Security

  • Security scanPassed, 100 of 100Pattern checks on the skill's files.
  • Model reviewNot runA model review is scheduled for the next rescan.

Quality evaluation

  • Task evaluationWarning, 65 of 100Marginal. 1 run. Evaluated 8 months ago.

Source

Popularity

Repository stars
21
Repository forks
4
7-day trend score
15

Stars and forks are for the whole GitHub repository, not this skill alone. Refreshed 26 Mar 2026, 7 months ago.

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