crystools-agents-talk

Claude Code plugin that monitors agent-to-agent communication in a chat-like format.

Logs colored, timestamped messages with duration, token usage, and tool counts to a file you can tail -f.

Output example

14:32:05 a1b2 ▶ api-agent  Create user endpoint
  Create a POST /users endpoint that accepts name and email...

14:32:18 a1b2 ◀ api-agent  Create user endpoint  [13s  4.2k tok  8 tools]
  Created POST /users endpoint with validation...

Requirements

• bash
• python3
• grep with -P (Perl regex) support

Installation

claude plugin marketplace add crystian/mia-marketplace
claude plugin install crystools-agents-talk@mia-marketplace

Usage

In a separate terminal, watch the log:

tail -f .tmp/agents-talk.log

The plugin automatically logs:

• ▶ Outbound — prompts sent to agents (PreToolUse)
• ◀ Inbound — responses from agents (PostToolUse / SubagentStop)

Tracked events

Event	What it captures
PreToolUse (Agent)	Prompt sent to the agent
PostToolUse (Agent)	Response + stats (duration, tokens, tools)
SubagentStop	Final response from background agents
SessionStart	Plugin loaded notification

License

MIT